The generation and reactivity of aza-oxyallyl cationic intermediates: aza- [4+3] cycloaddition reactions for heterocycle synthesis

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Supporting information Supporting Information for: The generation and reactivity of aza-oxyallyl cationic intermediates: aza- [4+3] cycloaddition reactions for heterocycle synthesis Christopher S. Jeffrey,* Korry L. Barnes, John A. Eickhoff, Christopher R. Carson Department of Chemistry, University of evada, Reno, evada 89557 Table of Contents General experimental procedures Tabulated characterization data S2-S3 S4-S15 Full Citation for Reference #19 S16 Computational data Copies of 1 and 13 C MR spectra S16-S23 S23-S68 S1

Supporting information General Experimental: All reactions were carried out under an atmosphere of nitrogen in oven-dried glassware with magnetic stirring, unless otherwise specified. Dichloromethane was purified by passage through a bed of activated alumina. Cyclopentadiene was distilled from dicyclopentadiene immediately prior to use. All other reagents and solvents were purchased from Sigma-Aldrich Chemical Company and used without any further purification. TLC information was recorded on Silicycle glass 60 F 254 plates and developed by staining with KM 4 or ceric ammonium molybdate. Purification of reaction products was carried out by flash chromatography using Silicycle Siliaflash P60 (230-400 mesh). 1 -MR spectra were measured on Varian 400 (400 Mz), Varian MR400 (400 Mz), or Varian 500 (500 Mz) spectrometers and are reported in ppm (s=singlet, d=doublet, t=triplet, q=quartet, m=multiplet, br=broad; integration; coupling constant(s) in z), using TMS as an internal standard (TMS at 0.00 ppm) in CD 3 or the solvent peak (1.94 ppm) in CD 3 C. 13 C-MR spectra were recorded on V400 or V500 spectrometer and reported in ppm using solvent as an internal standard (CD 3 at 77.16 ppm) or (CD 3 C at 118.26 ppm). Infrared (IR) spectra were recorded on a icolet 6700 FT-IR with a diamond ATR and data are reported as cm -1 (br = broad, s = strong). igh-resolution mass spectra were obtained using an Agilent 6230 TF LC/MS with an (atmospheric pressure photoionization (APPI) or electrospray (ESI) source with purine and P- 0921 as an internal calibrants. aloamides RMS were obtained with an inlet temperature of 200 C. S2

Supporting information General procedure A: for the synthesis of the alpha-haloamides 12 (entries 1-12) To a suspension of the -benzyloxyamine hydrochloride and triethylamine in C 2 2 (0.25 M) was added dropwise the alpha-haloacid halide at 0 C. The reaction mixture was stirred at this temperature until TLC analysis (3:1) hexanes:ethyl acetate revealed complete consumption of starting material. The mixture was warmed to room temperature and quenched with water. The organic phase was washed 3x with water, dried over sodium sulfate, filtered and evaporated. Purification via recrystallization from hexanes: ethyl acetate or via a column chromatography (Si 2, 3:1, exanes:etac) provided the haloamides in 45-90 % yield as a colorless solids. General procedure B: For the cycloaddition reaction of furan or cyclopentadiene in trifluoroethanol or hexafluoroisopropanol. To a solution of haloamide (1 equiv) in CF 3 C 2 and furan [1:1 (v/v) 0.25 M] or (CF 3 ) 2 C was added triethylamine (2 equiv) dropwise at 0 C. The solution was allowed to warm to room temperature and the reaction progress was monitored by TLC (3:1 or 2:1 hexanes: ethyl acetate) until complete consumption of haloamide. The volatiles were removed under reduced pressure and the residue was purified via flash column chromatography (4:1 to 3:1, hexanes: ethyl acetate) to provide the cycloadducts as oils (54-85% yield). S3

Supporting information 2-bromo-2-methyl--(phenylmethyl)propanamide (9a): 3 C C 3 2 Et 3, C 2 2 0 C 3 C C 3 9a Ph Prepared in 91 % yield (10.7 g, 42 mmol) from the reaction of 2-bromo-2-methylpropanoyl bromide (10.6 g, 46 mmol) with benzylamine (5.1 ml, 46 mmol) via general procedure A. R f = 0.84 (3:1, hexanes: ethyl acetate); mp 73.4-75.5 C; 1 MR (400 Mz, CD 3 ): δ 7.41 7.23 (m, 1), 7.03 (br s, 1), 4.46 (d, J = 5.8 z, 1), and 1.99 (s, 1); 13 C MR (125 Mz, CD 3 ): δ 172.0, 137.8, 128.8, 127.6, 127.6, 62.8, 44.4, and 32.6; IR (neat) 3291 (br), 3065, 301, 3008, 2938, 2919, 1642 (s), 1533 cm -1 ; RMS (ESI) calculated 256.0332 C 11 15 [M+] +, observed 256.0329. 2-bromo-2-methyl--(phenylmethoxy)propanamide (9b/12 entry # 8) 3 C C 3 Et 3, C 2 2 0 C 2 3 C C 3 Ph Prepared in 87 % yield (3.53 g, 11.3 mmol) from the reaction of 2-bromo-2- methylpropanoyl bromide (3.0 g, 13 mmol) with -benzylhydroxylamine hydrochloride (2.13 g, 13 mmol) via general procedure A. R f = 0.58 (3:1, exanes: Ethyl Acetate); mp = 88.6-91.1 C; 1 -MR (500 Mz, CD 3 ): δ 9.05 (br s, 1), 7.45-7.34 (m, 5), 4.94 (s, 2), and 1.93 (s, 6); 13 C-MR (126 Mz, CD 3 ): δ 169.7, 134.9, 129.6, 129.1, 128.8, 78.4, 59.5, and 32.6; FT-IR (neat) 3195 (br), 3034, 2954, 2890, 1652 (s), 1505, 1469, 1454, 1112, 1032, 1004 cm -1. RESI-MS: calcdʼ for C 11 18 2 2 (M+ 4 ) + 289.0546, observed 289.0543. S4

Supporting information (±)-2-bromo--(phenylmethoxy)propanamide (Substrate, Table #2, entry 2): 3 C Et 3, C 2 2 0 C 2 3 C Bn Prepared in 53 % yield (631 mg, 2.44 mmol) from the reaction of 2-bromo-2- methylpropanoyl bromide ( g, 4.6 mmol) with -benzylhydroxylamine hydrochloride (742 mg, 4.6 mmol) via general procedure A. R f = 0.28 (3:1, hexanes: ethyl acetate); mp = 75.3-77.4 C; 1 -MR (500 Mz, CD 3 ): δ 9.61 (br s, 1), 7.44 7.26 (m, 5), 4.90 (s, 2), 4.31 (q, J = 7.7 z, 1), and 1.77 (d, J = 6.4 z, 3); 13 C-MR (126 Mz, CD 3 ): δ 167.5, 134.8, 129.45, 128.9, 128.7, 78.3, 40.5, and 22.2; FT-IR (neat) 3110 (br), 2924, 2852, 1675 (s), 1508, 1495, 1453, 1364, 1188, 1038, 1023 cm -1 ; (±)-2-bromo--(phenylmethoxy)butanamide (Substrate, Table #2, entry 3): Et Et 3, C 2 2 0 C 2 Et Bn Prepared in 72 % yield (4.71 g, 17.3 mmol) from the reaction of 2-bromobutyryl bromide (5.0 g, 24 mmol) with -benzylhydroxylamine, hydrochloride via general procedure A. R f = 0.49 (3:1, hexanes: ethyl acetate); mp = 99.3-101.6 C; 1 -MR (500 Mz, CD 3 ): δ 8.92 (br s, 1), 7.52 7.31 (m, 5), 4.93 (s, 2), 4.12 (app q, J = 7.2 z 1), 2.02-1.94 (m, 2), and 0 (t, J = 7.0 z, 3); 13 C-MR (126 Mz, CD 3 ): δ 166.6, 134.8, 129.5, 129.0, 128.7, 78.4, 48.8, 28.8, and 11.8; FT-IR (neat) 3112, 2963, 2933, 2874, 1695, 1668 (s), 1528, 1496, 1454, 1364, 1177, 1089, 1023 cm -1. RMS calculated for C 11 15 [M+] +, 256.0332; found 256.0329. S5

Supporting information (±)-2-bromo-2,2-dimethyl -(phenylmethoxy)butanamide (Substrate, Table #2, entry 4): tbu Et 3, C 2 2 0 C 2 tbu Bn Prepared in 61 % yield (3.5 g, 11.8 mmol) from the reaction of 2-bromo-2,2- dimethylpropanoyl chloride (4.98 g, 19.3 mmol) with -benzylhydroxylamine (3.12 g, 19.3 mmol), hydrochloride via general procedure A. R f = 0.33 (3:1, exanes: Ethyl Acetate); 1 -MR (500 Mz, CD 3 ): δ 8.73 (br s, 1), 7.55 7.29 (m, 4), 4.92 (s, 2), 3.95 (s, 1), 1.11 (s, 9); 13 C-MR (126 Mz, CD 3 ): δ 166.1, 135.0, 129.6, 129.0, 128.8, 78.3, 59.4, 35.2, and 27.4; FT-IR (neat): 3179 (br), 3037, 2985, 2960, 2944, 2885, 1657 (s), 1511, 1479, 1371, 1241, 1159, 1052 cm -1 ; RMS ESI-MS calculated for C 13 19 2 (M+) + 300.0594, observed 300.0595. (±)-2-chloro--(phenylmethoxy)propanamide (Substrate, Table #2, entry 5): 3 C Et 3, C 2 2 0 C 2 3 C Bn Prepared in 48 % yield (0.97 g, 3.9 mmol) from the reaction of 2-chloropropanoyl chloride (3 g, 8.2 mmol) with -benzylhydroxylamine, hydrochloride (3 g, 8.2 mmol) via general procedure A. R f = 0.43 (3:1, hexanes: ethyl acetate); mp = 70.1-72.8 C; 1 -MR (500 Mz, CD 3 ): δ 9.09 (br s, 1), 7.44-7.35 (m, 5), 4.93 (s, 4), 4.33 (q, J = 7.1 z, 1), and 1.69 (d, J = 6.8 z, 3); 13 C-MR (126 Mz, CD 3 ): δ 167.1, 134.8, 129.5, 129.1, 128.8, 78.5, 53.2, and 22.3.; FT-IR: (neat): 3112 (br), 2931, 1678 (s), 1494, 1454, 1364, 1222, 1204, 1074 cm -1. RMS ESI-MS: calculated for C 10 12 a 2 (M+a) +, 236.0449; found 236.0445. S6

Supporting information 2,2-dichloro--(phenylmethoxy)acetamide (Substrate, Table #2, entries 6 and 11): Et 3, C 2 2 0 C 2 Bn Prepared in 82 % yield (2.6 g, 11.1 mmol) from the reaction of 2,2-dichloroacetyl chloride (2.0 g, 13.6 mmol) with -benzylhydroxylamine, hydrochloride (2.15 g, 13.6 mmol) via general procedure A. R f = 0.52 (3:1, hexanes: ethyl acetate); 1 MR (400 Mz, CD 3 C) δ 9.89 (br s, 1), 7.63 7.17 (m, 4), 6.02 (s, 1), and 4.89 (s, 2); 13 C MR (101 Mz, CD 3 C) δ 162.2, 136.1, 130.4, 129.7, 129.4, 78.8, and 65.6; IR (film) 3135 (br), 2996, 2880, 2860, 1700, 1677 (st), 1531, 1468, 1454, 1367, 1341, 1214, 1200, 1046, 1027 cm -1 ; R-APPIMS calculated for C 9 9 2 2 (M * ) + 233.0005, observed 232.9976. (±)-2-chloro-2-(4-chlorophenyl)acetamide (Substrate, Table #2, entry 7): C C C 3 C 2 Bn A suspension of the epoxynitrile (315 mg, 1.2 mmol, ~ 80 % pure) and - benzylhydroxylamine hydrochloride (240 mg, 1.5 mmol) in acetonitrile (15 ml, 0.1 M) was heated to reflux overnight. The suspension was cooled and the mixture was concentrated to 5 ml. The residue was partitioned between water and ethylacetate and the aqueous phase was extracted (3 x 15 ml). The combined organic phase was washed with brine (15 ml), dried over a 2 S 4, filtered, and evaporated under reduced pressure. The residue was recrystallized from hexanes and ethyl acetate to provide the product as a colorless solid (215 mg, 0.69 mmol, 58 % yield). R f = 0.20 (3:1, hexanes: ethyl acetate); 1 MR (400 Mz, CD 3 C) δ 9.76 (s, 1), 7.51 7.29 (m, 9), 5.27 (s, 1), and 4.84 (s, 2). 13 C S7

Supporting information MR (101 Mz, CD 3 C) δ 165.2, 136.6, 136.3, 135.5, 130.6, 130.4, 129.8, 129.6, 129.4, 78.6, and 57.9; IR (neat): 3115.8 (br), 2942, 2842, 2662, 1492 (s); R-ESIMS calculated for C 15 13 2 a 2 (M+a) + 332.0216, observed 332.0216. (±)-2-bromo--(phenylmethoxy) carboxamide (Substrate, Table #2, entry 9 and 12): Et 3, C 2 2 0 C 2 Bn Prepared in 72 % yield (4.5 g, 14.5 mmol) from the reaction of 2-bromocyclohexanoyl bromide (4.53 g, 20.1 mmol) with -benzylhydroxylamine, hydrochloride (3.21 g, 20.1 mmol) via general procedure A. R f = 0.47 (3:1; hexanes: ethyl acetate); mp = 84.6-86.1 C; 1 MR (400 Mz, CD 3 ) δ 8.98 (br s, 1), 7.51 7.31 (m, 5), 4.94 (s, 2), 2.13 (ddd, J = 14.6, 10.9, 4.0 z, 2), 2.00 (dt, J = 14.0, 4.1 z, 2), 1.80 1.57 (m, 5), 1.42 1.23 (m, 1). 13 C MR (101 Mz, CD 3 ) δ 169.6, 135.0, 129.6, 129.0, 128.7, 78.2, 38.1, 24.7, 22.6. IR (neat) 3235 (br), 3034, 2936, 2862, 1680, 1651 (s), 1470, 1459, 1270, 1249, 1210, 1122, 1025, 1000 cm -1 ; R-APPIMS calculated for C 14 16 2 (M+) + 312.0594, observed 312.0206. (±)-(4S, 5R, 1S) 4-methyl-8-oxo-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (Product, Table #2, entry 2): 3 C Bn Et 3 (2.0 equiv) : TFE (1:1 v/v) 3 C Bn 0 C to 25 C 67 % Prepared in 67 % yield (63.3 mg, 0.26 mmol) from the reaction of 2-bromo-- (phenylmethoxy)propanamide (100.7 mg, 0.39 mmol) with furan via general procedure B. R f = 0.3 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.47 7.32 (m, 5), 6.57 (dd, J = 6.2, z, 1), 6.41 (dd, J = 6.0, 1.7 z, 1), 5.25 (d, J = 1.5 z, 1), 5.00 (d, J = 1 z, 1), 4.87 (d, J = 1 z, 1), 4.85 (dd, J = 5.0, 1.9 z, 1), 3.17 (qd, J = S8

Supporting information 7.4, 5.0 z, 1), and 9 (d, J = 7.4 z, 3); 13 C-MR (126 Mz, CD 3 ): δ 172.7, 136.1, 135.8, 133.8, 129.7, 128.9, 128.7, 91.6, 82.9, 78.1, 45.1, and 10.6; IR (film) 3089, 2970, 2970, 2934, 2876, 1697, 1497, 1455, 1377, 1209, 1053 cm -1 ; RMS calculated for C 14 16 3 (M+) + 246.1125, observed 246.1118. (±)-(4S, 5R, 1S) 4-ethyl-8-oxo-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (Product, Table #2, entry 3): Et Bn Et 3 (2.0 equiv) : TFE (1:1 v/v) Et Bn 0 C to 25 C 86 % Prepared in 86 % yield (40.6 mg, 0.157 mmol) from the reaction of 2-bromo-- (phenylmethoxy)butanamide (50.0 mg, 0.183 mmol) with furan via general procedure B. R f = 0.3 (3:1, hexanes: ethyl acetate); R f 0.50 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.45-7.42 (m, 2), 7.41 7.32 (m, 3), 6.51 (dd, J = 6.0, 1 z, 1), 6.38 (dd, J = 6.0, 1.8 z, 1), 5.25 (d, J = 1.2 z, 1), 4.99 (d, J = 1 z, 1), 4.95 (dd, J = 5.1, 1.8 z, 1), 4.87 (d, J = 1 z, 1), 2.99 (dt, J = 10.1, 5.1 z, 1), 2.01 (dqd, J = 15.4, 7.5 5.3, 7.5, 15.4 z, 1), 1.24 1.14 (m, 1), and 3 (t, J = 7.5 z, 3). 13 C-MR (126 Mz, CD 3 ): δ 172.1, 135.8, 133.6, 129.7, 128.8, 128.6, 91.4, 91.4, 81.3, 78.0, 51.8, 19.5, and 12.3; IR (film) 3250(br), 3032, 2966, 2929, 2877, 1696, 1497, 1455, 1371, 1209, 1104, 1055, 1033 cm -1 ; R-ESIMS calculated for C 15 17 a 3 (M+a) + 282.1101; observed 282.1083. (±)-(4S, 5R, 1S) 4-(2,2-dimethylethyl)-8-oxo-2-(phenylmethoxy)-2- azabicyclo[3.2.1]oct-6-en-3-one (Product, Table #2, entry 4): t-bu Bn Et 3 (2.0 equiv) : TFE (1:1 v/v) t-bu Bn 0 C to 25 C 54 % Prepared in 54 % yield (52.7 mg, 0.18 mmol) from the reaction of 2-bromo-2,2-dimethyl-- (phenylmethoxy)propanamide (103.5 mg, 0.34 mmol) with furan via general procedure B. S9

Supporting information R f = 0.49 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.43 (m, 2), 7.41 7.33 (m, 3), 6.42 (dd, J = 6.0, 1.8 z, 2), 6.35 (dd, J = 6.0, 1.5 z, 1), 5.20 (d, J = 1.3 z, 1), 5.00 (dd, J = 4.8, 1.8 z, 1), 4.98 (d, J = 1 z, 1), 4.88 (d, J = 1 z, 1), 3.04 (d, J = 4.8 z, 1), 1.10 (s, 9); 13 C-MR (126 Mz, CD 3 ): δ 141.6, 136.0, 134.5, 134.0, 129.8, 128.8, 128.6, 91.6, 81.5, 78.0, 60.5, 32.3, and 29.8; IR (film) 3210, 3090, 3064, 3032, 2958, 2871, 1672 (s), 1497, 1480, 1455, 1365(s), 1231, 1211, 1162, 1054, 1038 cm -1 ; R-ESIMS calculated for C 17 21 a 3 (M+a) + 312.1455, found 312.1446. RMS: calcdʼ for C 17 21 a 3 (M+a) + 312.1455, found 312.1446 (±)-(4S, 5R, 1S) 4-chloro-8-oxo-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (endo) and (±)-(4R, 5R, 1S) 4-chloro-8-oxo-2-(phenylmethoxy)-2- azabicyclo[3.2.1]oct-6-en-3-one (Product, Table #2, entry 6): Bn Et 3 (2.0 equiv) : TFE (1:1 v/v) 0 C to 25 C endo 2 Bn exo 1 Bn Prepared in 73 % yield (72 mg, 0.31 mmol) from the reaction of 2,2-dichloro-- (phenylmethoxy)acetamide (100.2 mg, 0.43 mmol) with furan via general procedure B. R f = 0.50 (3:1, hexanes: ethyl acetate) 1 MR (400Mz, CD 3 ) δ 7.51 7.30 (m, 3), 6.54 (dd, J = 6.0, 1.1 z, 1), 6.51 (dd, J = 6.0, 1.7 z, 1), 5.27 (d, J = 1.1 z, 1), 5.09 (dd, J = 5.1, 1.6 z, 1), 5.00 (d, J = 1 z, 1), 4.89 (d, J = 1 z, 1), and 4.76 (d, J = 5.2 z, 1); 13 C MR (101 Mz, CD 3 ) δ 165.9, 136.8, 135.3, 133.1, 129.8, 129.2, 128.2, 92.1, 82.1, 78.3, and 56.9; IR (film) 3032, 2950, 2922, 2852, 1712 (s), 1455, 1369, 1213, 1189, 1059, 1023 cm -1. R-ESIMS calculated for C 13 12 a 3 (M+a) + 288.0398, found 288.0391. exo-diastereoisomer: R f = 0.3 (3:1, hexanes, ethyl acetate); 1 MR (400Mz, CD 3 ): δ 7.48 7.35 (m, 2), 6.68 (d, J = 5.9 z, 1), 6.34 (dd, J = 6.0, 1.1 z, 1), 5.28 (s, 1), 5.02 (d, J = 10.9 z, 1), 4.98 (s, 1), 4.92 (d, J = 10.9 z, 1), and 4.09 (s, 1); 13 C MR (101 Mz, CD 3 ) δ 165.5, 138.2, 135.0, 131.4, 129.9, 129.2, 128.8, 91.3, 84.2, 78.4, and 56.1; IR (neat) 3067, 3034, 2946, 2885, 1694, 1046 cm -1 ; RMS calculated for C 13 12 a 3 (M+a) + 288.0398, observed 288.0399. S10

Supporting information (±)-(4S, 5R, 1S) 4-(4-chlorophenyl)-8-oxo-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6- en-3-one (Product, Table #2, entry 7): Bn Et 3 (2.0 equiv) : FIP (1:1 v/v) Bn 0 C to 25 C 52 % Prepared in 53 % yield (54.4 mg, 0.16 mmol) from the reaction of 2-choro-2-(4- chlorophenyl)--(phenylmethoxy)acetamide (95.5 mg, 0.31 mmol) with furan via general procedure B. R f = 0.48 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.50 7.44 (m, 2), 7.44 7.34 (m, 3), 7.28 (ABd, J=8.5 z, 2), 7.05 (ABd, J=8.5 z, 2), 6.55 (dd, J = 6.0, 1.1 z, 1), 6.19 (dd, J = 6.0, 1.7 z, 1), 5.36 (d, J = 1.3 z, 1), 5.05 (d, J = 1 z, 1), 4.96 (d, J = 1 z, 1), 4.94 (dd, J = 5.3, 1.8 z, 1), and 4.38 (d, J = 5.3 z, 1); 13 C-MR (126 Mz, CD 3 ): δ 169.7, 136.0, 136.0, 135.6, 133.8, 133.8, 132.0, 131.1, 129.83, 129.1, 128.8, 128.7, 91.8, 91.8, 83.1, 83.1, 78.3, and 56.5; IR (film) 3089, 3064, 3031, 2924, 1688, 1492, 1454, 1368, 1275, 1260, 1211, 1091, 1059, 1017 cm -1. R-ESIMS: calcdʼ for C 19 17 3 (M+) + 342.0891, observed 342.0886. (±)-(1R, 5S)-4,4-dimethyl-8-oxo-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (10b) 3 C C 3 Bn Et 3 (2.0 equiv) : FIP (1:1 v/v) 3 C 3 C Bn 0 C to 25 C 78 % Prepared in 78 % yield (85.2 mg, 0.32 mmol) from the reaction of 2-bromo-2-methyl - (phenylmethoxy)propanamide (115.0 mg, 0.42 mmol) with furan via general procedure B. R f = 0.40 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.46 7.28 (m, 5), 6.56 (dd, J = 5.9, 1 z, 1), 6.43 (dd, J = 5.9, 1.9 z, 1), 5.21 (d, J = 1.1 z, 1), 4.97 (d, J = 10.9 z, 1), 4.87 (d, J = 10.9 z, 1), 4.46 (d, J = 1.8 z, 1), 1.49 (s, 3), and 5 (s, 3); 13 C-MR (126 Mz, CD 3 ): δ 13 C MR (101 Mz, CD 3 ) δ 175.7, 135.7, S11

Supporting information 135.5, 134.6, 129.8, 128.9, 128.6, 91.5, 87.4, 78.0, 49.3, 27.1, and 19.9; IR (film) 3055 (br), 1692, 1470,1385, 1362, 1265, 1217, 1174, 1055, 1008 cm -1 ; RMS calcdʼ for C 15 17 a 3 (M+a) + 282.1101, observed 282.1098. (±)-(1ʼR, 5ʼS)-spiro[cyclohexane-1,2'-[8]oxo-4ʼ-(phenylmethoxy)-4ʼazabicyclo[3.2.1]oct[6]en]-3'-one (Product, Table #2, entry 9): Bn Et 3 (2.0 equiv) : FIP (1:1 v/v) Bn 0 C to 25 C 65 % Prepared in 65 % yield (65.9 mg, 0.22 mmol) from the reaction of 2-bromo-- (phenylmethoxy)cyclohexane carboxamide (107.2 mg, 0.34 mmol) with furan via general procedure B. R f = 0.62 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.48 7.29 (m, 5), 6.54 (d, J = 5.8 z, 1), 6.43 (dd, J = 6.0, 1.7 z, 1), 5.18 (d, J = 1.1z, 1), 4.96 (d, J = 10.9 z, 1), 4.93 (d, J = 1.4 z, 1), 4.86 (d, J = 10.9 z, 1), 2.06 (d, J = 12.7 z, 2), 1.89 (td, J = 13.5, 6.8 z, 3), 1.75 (s, 2), 1.62 (dd, J = 13.3, 7.5 z, 5), and 1.47 1.19 (m, 6); 13 C-MR (101 Mz, CD 3 ): δ 175.7, 135.8, 135.5, 134.5, 129.8, 128.8, 128.6, 91.2, 82.9, 77.9, 53.3, 33.7, 28.9, 25.5, 21.7, and 21.5; IR (film) 3063, 3031, 2927, 2858, 1690, 1496, 1454, 1367, 1210, 1187, 1076, 1064 cm -1. R-ESIMS calculated for C 18 21 a 3 (M+a) +, 322.1414, observed 322.1424. S12

Supporting information (±)-(4S, 5R, 1S) 4-ethyl-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (endo ) and (±)-(4R, 5R, 1S) 4-ethyl- -2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3- one (Product, Table #2, entry 10): Et 3 (2.0 equiv) Et Bn 14i : TFE (1:1 v/v) 0 C to 25 C Bn Et + Prepared in 85 % yield (82.3 mg, 0.32 mmol) from the reaction of 2-bromo-- (phenylmethoxy)butanamide (100.4 mg, 0.37 mmol) with cyclopentadiene via general procedure B. R f = 0.54 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.53 7.28 (m, 5), 6.30 (dd, J = 5.5, 2.0 z, 1), 6.12 (dd, J = 5.4, 2.7 z, 1), 4.95 (d, J =10.8 z, 1), 4.88 (d, J = 10.8 z, 1), 3.90 (d, J = 6.1 z, 1), 2.93 (app q, J = 4.2 z, 1), 2.59 (dt, J = 10.4, 4.1 z, 1), 2.09 (dt, J = 12.1, 7.8 z, 1), 1.99 (dd, J = 1, 5.3 z, 1), 1.85 (d, J = 10.8 z, 1), 1.37 1.16 (m, 2), and 1 (t, J = 7.5 z, 3). 13 C-MR (101 Mz, CD 3 ): δ 171.6, 137.2, 137.0, 136.0, 129.8, 129.7, 128.7, 128.5, 77.19, 64.5, 51.5, 42.4, 40.8, 21.6, and 12.3; IR (film) 3063, 3031, 2961, 2874, 1668 (s), 1455, 1368. R-ESIMS: calculated C 16 19 a 2 (M+a) + 280.1308, found 280.1296. exodiastereoisomer (characterized as a mixture 2.5:1 exo:endo) R f = 0.41 (3:1, exanes:ethyl Acetate); 1 MR (500 Mz, CD 3 ): d 7.5-7.3 (m, 5), 6.30 (dd, J = 5.5, 2.5 z, 1), 6.17 (dd, J = 5.5, 2.9 z, 1), 4.93 (d, J = 10.7 z, 1), 4.86 (d, J = 10.7 z, 1), 3.86 (br s, 1), 2.73 (app t, J = 4.2 z, 1), 2.20 (dd, J = 10.1, 5.3 z, 1), 2.12-2.16 (m, 1), 2.05-1.98 (m 1), 1.92 (d, J = 11.3 z, 1), 1.74 (ddd, J = 10, 5, 5 z, 1), 1.62-1.59 (m, 1), 1.31-1.18 (m, 1), and 5 (t, J = 7.1 z, 3); 13 C MR (101 Mz, CD 3 ) δ 174.5, 138.3, 136.4, 136.0, 129.9, 128.8, 128.5, 77.0, 64.4, 51.5, 42.2, 38.8, 34.3, 30.5, 25.7, 21.6, and 21.3. IR (film) 3063, 3031, 2961, 2874, 1679, 1496, 1455, 1370 cm -1 ; RMS calcdʼ C 16 19 a 2 (M+a) + 280.1308, found 280.1303. Et endo exo 85 % Bn S13

Supporting information (±)-(4S, 5R, 1S) 4-chloro-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one and (±)-(4R, 5R, 1S) 4-chloro-2-(phenylmethoxy)-2-azabicyclo[3.2.1]oct-6-en-3-one (Product, Table #2, entry 11): Bn Et 3 (2.0 equiv) : TFE (1:1 v/v) Bn Bn 0 C to 25 C Prepared in 64 % yield (73.8 g, 0.28 mmol) from the reaction of 2-bromo-- (phenylmethoxy)butanamide (100.8 mg, 0.43 mmol) with cyclopentadiene via general procedure B. R f = 0.53 (3:1, hexanes: ethyl acetate); 1 -MR (500 Mz, CD 3 ): δ 7.46 7.34 (m, 3), 6.32 (dd, J = 5.7, 2.2 z, 1), 6.31 6.28 (m, 1), 4.98 (d, J = 10.9 z, 1), 4.92 (d, J = 10.9 z, 1), 4.71 (d, J = 4.4 z, 1), 2.06 (dt, J = 11.6, 4.8 z, 1), and 1.90 (d, J = 11.5 z, 1); 13 C-MR (126 Mz, CD 3 ): δ 164.7, 138.0, 136.5, 135.5, 129.9, 129.0, 128.6, 77.4, 65.0, 6, 46.8, and 41.7; IR (film) 3066, 3033, 2926, 2853, 1679, 1455, 1372 cm -1 ; R-ESIMS calculated for C 14 15 2 (M+) + 264.0786, found 264.0779. (±)-(1ʼR, 5ʼS) spiro[cyclohexane-1,2' -4ʼ-(phenylmethoxy)-4ʼazabicyclo[3.2.1]oct[6]en]-3'-one (Product, Table #2, entry 12): Bn Bn Et 3 (2.0 equiv) : FIP (1:1 v/v) 0 C to 25 C 65 % Prepared in 81 % yield (72.9 mg, 0.26 mmol) from the reaction of 2-bromo-- (phenylmethoxy)butanamide (100.4 mg, 0.32 mmol) with cyclopentadiene via general procedure B. R f = 0.6 (3:1, hexanes: ethyl acetate); 1 -MR (400 Mz, CD 3 ): 7.42 (d, J = 7.5 z, 2), 7.40 7.29 (m, 3), 6.25 (dd, J = 5.6, 2.0 z, 1), 6.16 (dd, J = 5.6, 2.9 z 1), 4.92 (d, J = 10.4 z, 2), 4.88 (d, J = 10.3 z, 2), 3.84 (dd, J = 4.2, 3.5 z, 1), S14

Supporting information 2.98 (dd, J = 4.1, 3.1 z, 1), 1.98 (d, J = 11.2 z, 1), 1.94 (dt, J = 16.6, 12.6 z, 1) 1.88-1.84 (m, 1), 1.83 (dt, J = 10.6, 4.5 z, 1), 1.75 (dq, J = 13.4, 3.6 z, 1), 1.70-1.60 (m, 3), 1.55-1.42 (m, 2), and 1.42-1.31 (m, 2); 13 C MR (101 Mz, CD 3 ) δ 174.5, 138.6, 136.4, 136.0, 130.0, 128.7, 128.5, 77.0, 64.4, 51.5, 42.3, 38.8, 34.3, 30.5, 25.7, 21.6, and 21.3.; IR (film) 3062, 3030, 2925, 2858, 1662 (s), 1454, 1371 cm -1. R- ESIMS calculated for C 19 24 a 2 (M+a) + 321.1699, observed 321.1651. 2-methyl-2-(2,2,2-trifluoroethoxy)--(phenylmethoxy)-propanamide (11b) F 3 C 3 C Produced as a byproduct 56 % from the reaction of 2-bromo-2-methyl-- (phenylmethoxy) propanamide with TEA in furan and trifluoroethanol. R f = 0.26 (3:1, hexanes: ethyl acetate); 1 MR (500 Mz, CD 3 ) δ 8.88 (s, 1), 7.56 7.31 (m, 5), 4.94 (s, 2), 3.68 (q, J = 8.3 z, 2), 1.43 (s, 6); 13 C MR (125 Mz, CD 3 ) 13 C MR (101 Mz, cdcl 3 ) δ 170.8, 134.9, 129.4, 129.0, 128.7, 123.7 (q, J = 278 z), 80.4, 78.3, 61.6 (q, J = 35 z), and 23.6; FT-IR 3218 (br), 3036; 2942, 2886, 1663 (st), 1430, 1455, 1485, 1386, 1369, 1307, 1285, 1217, 1181, 1145, 1029, 1010 cm -1 ; R-ESIMS calculated for C 13 17 F 3 3 (M+) + 292.1155, observed 292.1160. 2-methyl--(phenylmethoxy)-2-propenamide: Elimination product from the reaction attempted cycloaddition of 9b with Li 4 /Et 3 in diethyl ether. 3 C C 3 1 MR (400 Mz, CD 3 ) δ 8.19 (br s, 1), 7.49 7.29 (m, 5), 5.55 (pent, J = 1 z, 1), 5.32 (dq, J = 1.6, z, 1), 4.96 (s, 2), and 1.92 (dd, J = 1.6, 1.2 z, 3); 13 C MR (101 Mz, CD 3 ) δ 167.2, 138.0, 135.4, 129.5, 129.0, 128.8, 120.4, 78.3, and 18.6; IR (film) 3199 (br), 3064, 3032, 2954, 2878, 1658, 1620, 1496, 1453, 1372, 1322, 1209, 1039 cm -1 ; R-ESIMS calculated for C 11 13 a 2 (M+a)+ 215.0871, found 215.0869. Bn Bn S15

Supporting information Computational data: Full citation for reference 19: Gaussian 03, Revision C.02, Frisch, M. J.; Trucks, G. W.; Schlegel,. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Montgomery, Jr., J. A.; Vreven, T.; Kudin, K..; Burant, J. C.; Millam, J. M.; Iyengar, S. S.; Tomasi, J.; Barone, V.; Mennucci, B.; Cossi, M.; Scalmani, G.; Rega,.; Petersson, G. A.; akatsuji,.; ada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; asegawa, J.; Ishida, M.; akajima, T.; onda, Y.; Kitao,.; akai,.; Klene, M.; Li, X.; Knox, J. E.; ratchian,. P.; Cross, J. B.; Bakken, V.; Adamo, C.; Jaramillo, J.; Gomperts, R.; Stratmann, R. E.; Yazyev,.; Austin, A. J.; Cammi, R.; Pomelli, C.; chterski, J. W.; Ayala, P. Y.; Morokuma, K.; Voth, G. A.; Salvador, P.; Dannenberg, J. J.; Zakrzewski, V. G.; Dapprich, S.; Daniels, A. D.; Strain, M. C.; Farkas,.; Malick, D. K.; Rabuck, A. D.; Raghavachari, K.; Foresman, J. B.; rtiz, J. V.; Cui, Q.; Baboul, A. G.; ifford, S.; Cioslowski, J.; Stefanov, B. B.; Liu, G.; Liashenko, A.; Piskorz, P.; Komaromi, I.; Martin, R. L.; Fox, D. J.; Keith, T.; Al- Laham, M. A.; Peng, C. Y.; anayakkara, A.; Challacombe, M.; Gill, P. M. W.; Johnson, B.; Chen, W.; Wong, M. W.; Gonzalez, C.; and Pople, J. A.; Gaussian, Inc., Wallingford CT, 2004. Example input file for geometry minimization: %nproc=2 %chk=i81a.chk %mem=2gb #n opt b3lyp/6-31g* scrf=(cpcm, solvent=methanol) azaoxyallylcation dimethyl -methoxy in methanol 0 1 C -4.88003 0.59080 0.09215 C -3.42999 0.96634 0.11274 C -2.28202 0.01468 0.22341 C -3.10581 2.42744 0.09334-2.70002-1.12595-0.03955-1.10635 0.49900 0.52164-0.13333-0.51633 0.61433 C 0.67457-0.47389-0.55096-5.07804-0.44975 0.36244-5.29605 0.76899-0.90482-5.43537 1.20852 0.80640-3.97375 3.02041-0.21341-2.30051 2.64427-0.61578-2.80286 2.76539 8923 1.47902-1.20579-0.43945 1.11964 0.51840-0.67446 0.08740-0.73446-1.43680 RADII=UAKS S16

Supporting information Minimization 14 in methanol 3 C Et C 3 14 Total energy: F=-365.203694 # of imaginary frequencies = 0 C 1.242187-1.447664-90548 C 0.858851-0.470754 0.003783 2.315419-1.667339-41859 15903-38748 -2.079348 0.700982-2.394891-0.971560 C 87579-0.957327 1.425543 0.514621-1.872492 1.620938 0.804667-0.205336 2.169912 2.148084-1.192820 1.570807 C 0.783499 05041-0.201236-0.384732 0.368569-0.276281 C -1.694176 0.509807 0.363537 C -2.718991-0.453803-0.228050-2.005195 1.550266 0.215570-1.592786 0.347895 1.446185-2.845839-0.278068-1.301261-3.688364-0.317402 0.263722-2.409312-1.494875-0.084282 1.297656 2.109004-0.189129 S17

Supporting information Minimization of 15 in methanol 3 C C 3 1 C 3 Total energy: F=-40423649 # of imaginary frequencies = 0 1.588434 0.329171 0.309267 0.445852 0.200193-0.517917 C -0.607054 37141-0.260671 C 2.595168-0.586460-0.137260-0.864133 2.205941-0.085492 C -0.912870-0.384018 0.004522 C -36489-0.732292 1.476619 C -1.554857-1.338884-0.976441 3.447981-0.411489 0.523435 2.875855-0.383357-1.176313 2.257351-1.624665-0.038985-2.089747-0.697991 1.776208-0.472381-0.042091 2.110054-0.666626-1.749140 1.652835-2.640724-1.349860-0.824034-1.178294-2.356619-0.820480-1.352168-39947 -2.008116 S18

Supporting information Minimization of 16 in methanol 3 C 3 C 1 C3 Total Energy: F=-40345846 # of imaginary frequencies = 0 C -2.695911-0.504180 0.120765 C -1.441931 0.273460-0.002908 C -0.224850-0.509983-0.066285 C -1.535903 1.756588-0.049620-0.209439-1.762496-0.055405 0.848891 0.339251-0.073002 1.977297-0.400046-0.008639 C 3.141014 0.437317 0.094486-2.530096-1.392175 0.739067-2.954505-0.893465-0.881216-3.538843 0.093511 0.480436-2.278890 2.053797-0.813006-0.578469 2.242337-0.235723-1.953416 2.113319 0.914036 3.988283-0.249867 0.131122 3.095480 36168 10481 3.216119 94266-0.781391 S19

Supporting information Gas phase minimization of alpha-lactam 15: 3 C C 3 1 C 3 Total energy: F=-40342371 # of imaginary frequencies = 0 1.571947 0.256103 0.366448 0.448985 0.183909-0.497929 C -0.595219 47510-0.248904 C 2.619482-0.549870-0.169263-0.854227 2.211207-0.093927 C -0.914921-0.378039 0.000856 C -53430-0.739194 1.469026 C -1.568331-1.314718-0.991597 3.454023-0.428395 0.526268 2.911357-0.205648-1.167563 2.329200-1.607184-0.215983-2.106250-0.686728 1.767145-0.478524-0.065020 2.109070-0.702310-1.763623 1.642181-2.655789-1.312537-0.850608-1.209128-2.341162-0.847177-1.352726-09673 -2.018708 S20

Supporting information Minimization of aza-oxyallylcation 16 in gas phase: 3 C 3 C 1 C3 Total energy: F=-40189598 # of imaginary frequencies = 0-1.977646-0.395145 0.021437-0.843699 0.323074-0.068762 C 0.232680-0.538518-0.134537 C -3.111604 0.470252 0.147429 0.238440-1.775361-0.195934 C 1.425374 0.274638 0.016439 C 2.672801-0.485669 0.270198 C 1.508138 1.752423-0.136451-3.979989-0.190058 0.172030-3.167494 1.147768-0.710315-3.046420 49363 74245 2.999455-0.940704-0.679718 2.464878-1.339770 0.924677 3.486458 0.134881 0.655664 2.175132 1.991500-0.980887 1.986477 2.198362 0.748253 0.536712 2.212432-0.305107 S21

Supporting information Example input file for the relaxed potential energy surface scan: %nproc=2 %mem=4gb # b3lyp/6-31g* opt=modredundant guess=always scrf=(cpcm, solvent=methanol) a relaxed PES scan 0 1 1.588434 0.329171 0.309267 0.445852 0.200193-0.517917 C -0.607054 37141-0.260671 C 2.595168-0.586460-0.137260-0.864133 2.205941-0.085492 C -0.912870-0.384018 0.004522 C -36489-0.732292 1.476619 C -1.554857-1.338884-0.976441 3.447981-0.411489 0.523435 2.875855-0.383357-1.176313 2.257351-1.624665-0.038985-2.089747-0.697991 1.776208-0.472381-0.042091 2.110054-0.666626-1.749140 1.652835-2.640724-1.349860-0.824034-1.178294-2.356619-0.820480-1.352168-39947 -2.008116 2 6 +=-0.1 S 10 0.1 Relaxed PES scan for 14 in methanol Relaxed PES scan for 15 in methanol Relaxed PES scan for 16 in the gas phase r[c(3)-] Å Total E (artees) r[c(3)-] Å Total E (artees) r[c(3)-] Å Total E (artees) 1.42624-365.200017 1.46856-40399013 1.46856-40321450 1.52624-365.203694 1.56856-40423652 1.55718-40342371 1.62624-365.201345 1.66856-40408389 1.56856-40342100 1.72624-365.196079 1.76856-40376628 1.66856-40321910 1.82624-365.189784 1.86856-40345412 1.76856-40283450 1.92624-365.183503 1.96856-40326107 1.86856-40241140 2.02624-365.178094 2.06856-40323206 1.96856-40208240 2.12624-365.173891 2.16856-40332170 2.06856-40191060 2.22624-365.170871 2.26856-40345043 2.16856-40187300 2.32624-365.168804 2.36856-40329454 2.26856-40189590 2.42624-365.165683 2.46856-40274869 2.27110-40189600 2.52624-365.159166 2.28115-40345850 2.36856-40173320 2.46856-40119070 S22

Supporting information Copies of 1 and 13 C spectra for all new compounds S23

4.4 3.5 2.5 1.99 6.0 1.5 0.5 S24 3 C C 3 7.37 7.37 7.36 7.35 7.35 7.34 7.34 7.33 7.33 7.33 7.31 7.30 7.30 7.29 7.28 7.27 7.27 7.27 7.25 7.03 4.46 4.45 9a: 1 -MR (400 Mz, CD 3 ) 4.4 2.0 7.03 7.35 7.33 7.33 7.28 7.27 7.27 7.29 4.46 4.45 7.4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 12.5 1 9.5 8.5 7.5 6.5 5.5 4.5

44.38 40 32.63 30 10 0 S25 3 C C 3 171.97 137.84 128.82 127.64 127.55 62.83 9a: 13 C-MR (126 Mz, CD 3 ) 210 190 170 150 130 110 90 80 70 60 50 20

1.78 1.77 3.3 1 0-1 -2 S26 3 C 9.61 7.39 7.38 7.36 7.35 4.90 4.31 4.30 Substrate, Table 2, Entry 2 1 -MR (500 Mz, CD 3 ): 0.9 5.0 2.1 0.9 14 13 12 11 10 9 8 7 6 5 4 3 2

40.52 29.75 22.18 20 0 S27 3 C 167.46 134.79 129.48 128.95 128.67 78.26 Substrate, Table 2, Entry 2 13 C-MR (125 Mz, CD 3 ): 220 200 180 160 140 120 100 80 60 40

2 0 0.98 1 0-1 S28 3 C 8.92 7.41 7.41 7.40 7.39 7.38 7.37 4.93 4.12 2.13 2.11 2.05 2.03 2.02 2.00 1.98 Substrate, Table 2, Entry 3 1 -MR (400 Mz, CD 3 ): 5.0 2.4 0.9 2.5 3.6 14 13 12 11 10 9 8 7 6 5 4 3 2

40 28.83 20 11.78 0 S29 3 C 166.62 134.85 129.53 129.03 128.73 78.38 48.75 Substrate, Table 2, Entry 3 13 C-MR (125 Mz, CD 3 ): 220 200 180 160 140 120 100 80 60

2 1.11 9.0 1 0-1 -2 S30 3 C 3 C C 3 8.73 7.41 7.40 7.39 7.38 7.37 4.92 3.95 Substrate Table #2, entry 4 1 -MR (500 Mz, CD 3 ) 0.8 4.3 2.0 0.9 8.73 7.41 7.40 7.39 7.38 7.37 4.92 3.95 8.5 7.5 6.5 5.5 4.5 14 13 12 11 10 9 8 7 6 5 4 3

40 35.17 27.38 20 0 S31 3 C 3 C C 3 166.05 135.05 129.55 129.05 128.78 78.25 59.42 Substrate Table #2, entry 4 13 C-MR (126 Mz, CD 3 ): 220 200 180 160 140 120 100 80 60

1.70 1.69 3.0 1 0-1 -2 S32 3 C 9.09 7.40 7.39 7.38 7.37 4.95 4.93 4.34 4.32 Substrate Table #2, entry 5 1 -MR (500 Mz, CD 3 ) 0.9 4.5 2.0 0.8 14 13 12 11 10 9 8 7 6 5 4 3 2

40 22.29 20 0 S33 3 C 167.12 134.77 129.50 129.10 128.77 78.45 53.22 Substrate Table #2, entry 5 13 C-MR (126 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

1 0-1 -2 S34 9.89 7.44 7.43 7.42 7.42 7.41 7.40 7.40 7.39 6.02 4.89 Substrate Table #2, entry 6 1 -MR (400 Mz, CD 3 C) 0.8 4.2 0.7 2.0 14 13 12 11 10 9 8 7 6 5 4 3 2

40 20 0 S35 162.25 136.06 130.35 129.74 129.45 78.77 65.64 Substrate Table #2, entry 6 13 C-MR (101 Mz, CD 3 C) 220 200 180 160 140 120 100 80 60

1 0-1 -2 S36 9.76 7.46 7.45 7.43 7.42 7.41 7.40 7.40 7.38 7.37 7.36 5.27 4.84 Substrate Table #2, entry 7 1 -MR (400 Mz, CD 3 C) 9.0 2.4 14 13 12 11 10 9 8 7 6 5 4 3 2

40 20 0 S37 164.55 135.88 135.61 134.83 129.94 129.65 129.10 128.96 128.72 77.92 57.20 Substrate Table #2, entry 7 13 C-MR (101 Mz, CD 3 C) 220 200 180 160 140 120 100 80 60

1.92 2 1 0-1 -2 S38 3 C C 3 9.21 7.43 7.42 7.41 7.41 7.41 7.39 7.38 7.38 7.37 7.37 7.37 7.36 7.36 7.36 4.93 9b: 1 -MR (500 Mz, CD 3 ) 0.9 4.8 2.0 5.9 9.21 7.43 7.42 7.41 7.41 7.41 7.39 7.38 7.38 7.37 7.37 7.37 7.36 7.36 7.36 4.93 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 14 13 12 11 10 9 8 7 6 5 4 3

32.35 20 0 S39 3 C C 3 169.62 134.82 129.51 128.98 128.67 78.21 59.16 9b: 13 C-MR (126 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60 40

2 1 0-1 S40 8.98 7.44 7.43 7.42 7.42 7.40 7.39 7.39 7.38 7.37 7.37 4.95 4.94 2.17 2.16 2.14 2.13 2.12 2.11 2.10 2.02 1.98 1.78 1.77 1.75 1.74 1.72 1.71 1.68 1.67 1.66 1.63 1.56 1.36 1.35 1.33 1.32 1.31 1.30 Substrate, Table 2, Entries 9 and 12 1 -MR (400 Mz, CD 3 ) 5.0 2.3 4.8 6.2 1.3 14 13 12 11 10 9 8 7 6 5 4 3

40 21.17 20 14.28 0 S41 171.61 161.88 134.29 129.65 129.29 128.84 105.12 78.63 64.44 60.65 Substrate, Table 2, Entries 9 and 12 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

3.4 2.0 1.5 3.19 3.18 3.18 3.17 3.16 3.15 3.15 3.14 9 8 3.4 0.5 0.0 S42 5.0 0.9 0.9 1.1 2.1 7.45 7.45 7.44 7.44 7.40 7.39 7.38 7.37 7.36 7.35 6.58 6.58 6.57 6.42 6.41 6.40 6.40 5.26 5.25 5.01 4.99 4.88 4.86 4.86 4.85 4.85 4.84 3.19 3.18 3.18 3.17 3.16 3.15 3.15 3.14 3 C Product, Table 2, Entry 2 1 -MR (500 Mz, CD 3 ) 6.58 6.58 6.57 6.42 6.41 6.40 6.40 4.86 4.85 4.85 4.84 5.26 5.25 5.01 4.86 4.88 4.99 6.6 6.2 5.8 5.4 5.0 4.6 4.2 3.8 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5

40 20 0 172.70 136.14 135.82 133.77 129.67 128.87 128.66 45.10 10.64 91.55 82.91 78.09 S43 3 C Product, Table 2, Entry 2 13 C-MR (126 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

0.0 0.5 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 3.3 1.2 1.2 1.1 2.1 0.9 5.1 2 3 5 1.16 1.18 1.18 1.19 1.20 1.21 1.21 1.23 1.98 1.99 2.00 2.01 2.01 2.02 2.02 2.03 2.04 2.97 2.98 2.99 3.00 3.01 4.86 4.88 4.95 4.95 4.96 4.96 4.98 5.00 5.25 5.25 6.37 6.37 6.38 6.38 6.51 6.51 6.52 6.52 7.35 7.35 7.36 7.36 7.36 7.36 7.37 7.37 7.37 7.38 7.38 7.39 7.39 7.39 7.43 7.43 7.44 7.44 7.45 C 3 Product, Table 2, Entry 3 1 -MR (500 Mz, CD 3) 5.0 5.4 5.8 6.2 6.6 4.86 4.88 4.95 4.96 4.96 4.98 5.00 5.25 5.25 6.37 6.37 6.38 6.38 6.51 6.51 6.52 1.5 2.0 2.5 3.0 1.16 1.18 1.18 1.19 1.20 1.21 1.23 1.98 1.99 2.00 2.01 2.01 2.02 2.02 2.03 2.04 2.97 2.98 2.99 3.00 3.01 S44

40 20 0 172.12 135.79 133.60 129.67 128.85 128.63 19.48 12.29 91.37 91.36 81.30 78.01 51.84 S45 C 3 Product, Table 2, Entry 3 13 C-MR (126 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

3.2 3.04 3.04 1.5 1.10 9.5 0.5 5.5 1.1 2.2 1.1 S46 7.45 7.44 7.43 7.43 7.39 7.38 7.38 7.37 7.37 7.36 7.35 6.43 6.43 6.42 6.42 6.36 6.34 5.20 5.20 5.01 5.01 5.00 5.00 4.97 4.89 4.87 3.04 3.04 3 C C 3 C 3 Product, Table 2, Entry 4 1 -MR (500 Mz, CD 3 ) 6.43 6.43 6.42 6.42 6.36 6.34 5.20 5.20 5.01 5.01 5.00 5.00 4.97 4.89 4.87 6.4 6.0 5.6 5.2 4.8 4.4 4.0 3.6 9.5 8.5 7.5 6.5 5.5 4.5 3.5 2.5

40 32.40 29.78 20 0 S47 3 C C 3 C 3 178 135.97 134.46 134.03 129.74 128.84 128.65 91.54 81.47 77.99 60.48 Product, Table 2, Entry 4 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

5.11 5.10 5.10 5.09 5.1 5.03 5.01 2.5 4.92 4.89 4.9 1.5 4.78 4.77 0.5 6.1 2.1 1.1 1.1 1.3 1.4 S48 7.45 7.45 7.44 7.43 7.43 7.42 7.42 7.41 7.40 7.40 7.39 7.38 7.38 7.26 6.57 6.55 6.55 6.53 6.53 6.52 6.51 5.27 5.27 5.11 5.10 5.10 5.09 5.03 5.01 4.96 4.92 4.89 4.78 4.77 Product, Table 2, Entry 6 1 -MR (400 Mz, CD 3 ) 6.57 6.56 6.55 6.55 6.53 6.53 6.52 6.51 5.27 5.27 6.5 6.3 6.1 5.9 5.7 5.5 5.3 12.5 1 9.5 8.5 7.5 6.5 5.5 4.5 3.5

30 20 10 0 165.87 S49 136.75 135.31 133.12 129.79 129.16 128.78 82.06 78.28 56.95 Product, Table 2, Entry 6 13 C-MR (101 Mz, CD 3 ) 190 170 150 130 110 90 80 70 60 50 40

4.6 2.5 4.3 1.5 4.09 0.5 6.2 1.1 1.1 S50 3.8 7.46 7.45 7.44 7.44 7.42 7.41 7.40 7.39 7.38 7.38 6.68 6.67 6.35 6.35 6.34 6.33 5.28 5.03 5.00 4.98 4.93 4.90 4.09 Product, Table 2, Entry 6 (exo) 1 -MR (400 Mz, CD 3 ) 6.68 6.67 6.35 6.35 6.34 6.33 5.28 5.03 5.00 4.98 4.93 4.90 6.7 6.4 6.1 5.8 5.5 5.2 4.9 11.5 10.5 9.5 8.5 7.5 6.5 5.5 4.5 3.5

40 20 0 165.39 138.21 134.98 131.36 129.94 129.25 128.81 91.31 S51 84.15 78.40 56.06 Product, Table 2, Entry 6 (exo) 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

2.0 5.0 4.7 4.5 4.38 4.37 4.5 4.38 4.37 4.0 3.5 S52 7.48 7.48 7.47 7.46 7.42 7.41 7.40 7.39 7.39 7.39 7.38 7.29 7.29 7.28 7.27 7.26 7.06 7.06 7.05 7.04 6.55 6.55 6.54 6.54 6.20 6.19 6.18 6.18 5.36 5.35 5.06 5.04 4.97 4.95 4.94 4.94 4.93 4.93 Product, Table 2, Entry 7 1 -MR (500 Mz, CD 3 ) 2.0 3.4 2.3 2.1 0.9 6.55 6.55 6.54 6.54 6.20 6.19 6.18 6.18 5.36 5.35 5.06 5.04 4.97 4.95 4.94 4.94 4.93 4.93 6.5 6.3 6.1 5.9 5.7 5.5 5.3 5.1 4.9 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5

40 20 0 S53 169.73 136.00 135.97 135.55 133.81 133.76 131.99 131.12 129.83 129.08 128.84 128.74 91.85 91.81 83.13 83.08 78.27 56.48 Product, Table 2, Entry 7 13 C-MR (126 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

2.5 4.47 4.46 1.49 1.5 3.8 5 0.5 4.9 0.9 0.9 1.2 1.2 3.6 S54 7.43 7.43 7.38 7.38 7.37 7.37 7.37 7.36 7.36 7.26 6.57 6.57 6.57 6.57 6.56 6.56 6.56 6.56 6.44 6.44 6.43 6.42 5.21 5.21 4.99 4.96 4.89 4.86 4.47 4.46 3 3 C C Product, Table 2, Entry 8 (10b) 1 -MR (400 Mz, CD 3 ) 6.57 6.56 6.56 6.56 6.56 6.44 6.44 6.43 6.42 5.21 5.21 4.99 4.96 4.89 4.86 6.5 6.2 5.9 5.6 5.3 5.0 4.7 10.5 9.5 8.5 7.5 6.5 5.5 4.5 3.5

40 20 0 175.70 135.70 135.49 134.64 129.82 128.92 128.65 91.49 87.40 78.02 27.06 19.89 S55 49.30 3 3 C C Product, Table 2, Entry 8 (10b) 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

5.18 5.1 1.4 2.0 8.2 4.97 4.95 4.93 1.5 5.3 4.9 0.5 0.0 5.5 1.1 3.7 7.44 7.42 7.42 7.39 7.38 7.36 7.36 6.54 6.53 6.44 6.43 6.42 6.42 5.18 4.97 4.95 4.93 4.87 4.84 4.87 4.84 S56 2.08 2.05 1.92 1.91 1.88 1.86 1.85 1.75 1.64 1.63 1.62 1.59 1.55 1.43 1.40 1.34 1.31 1.28 1.25 Product, Table 2, Entry 9 1 -MR (400 Mz, CD 3 ) 6.54 6.53 6.44 6.43 6.42 6.42 6.5 6.3 6.1 5.9 5.7 5.5 5.3 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5

40 20 0 175.67 135.76 135.52 134.46 129.80 128.85 128.60 91.20 33.70 28.90 25.54 21.70 21.54 82.91 77.89 53.29 S57 Product, Table 2, Entry 9 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 5.0 6.2 5.6 5.0 4.4 6.31 6.30 6.30 6.13 6.13 6.12 6.12 4.96 4.94 4.89 4.87 1 -MR (500 Mz, CD 3) Product, Table 2, Entry 10 (endo) 3 C 7.45 7.44 7.43 7.43 7.38 7.38 7.37 7.35 7.35 7.35 7.34 6.31 6.31 6.30 6.30 6.13 6.13 6.12 6.12 5.5 5.0 4.5 4.0 2.0 3.0 2.8 3.90 3.90 2.95 2.94 2.93 2.92 4.96 4.94 4.89 4.87 3.90 3.90 3.5 3.0 2.5 2.0 1.5 0.5 2.1 1.7 3.1 2.6 2.4 2.2 2.0 1.8 2.61 2.60 2.59 2.59 2.58 2.57 2.09 2.08 2.07 2.06 2.02 2.01 2.00 1.99 1.98 1.87 1.84 2.95 2.94 2.93 2.92 2.60 2.59 2.59 2.58 2.07 2.01 2.00 1.99 1.98 1.87 1.84 1.28 1.26 1.26 1.25 1.24 1.23 1.23 1.21 5 3 1 0 0.0 S58

40 20 0 171.63 137.21 137.01 136.09 129.76 128.69 128.53 42.39 40.82 21.65 77.22 64.53 51.56 12.30 S59 C 3 endo-15i: 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

0.9 2.3 1.2 1.4 1.9 2.0 0.5 S60 C 3 C 3 Product, Table 2, Entry 10 6.6 1.2 0.9 0.4 1.5 1.5 0.3 0.9 2.7 4.8 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 1.5

10.5 9.5 8.5 6.4 6.0 5.6 6.33 6.33 6.32 6.31 6.31 6.30 6.29 1 -MR (500 Mz, CD 3) Product, Table 2, Entry 11 7.5 6.5 4.6 1.8 5.2 4.8 4.4 4.72 4.71 4.99 4.97 4.93 4.91 7.45 7.44 7.43 7.43 7.38 7.38 7.37 7.37 6.33 6.33 6.32 6.31 6.31 6.30 6.29 5.5 4.5 2.0 0.9 4.0 3.97 3.97 3.96 3.96 3.96 3.96 4.99 4.97 4.93 4.91 4.72 4.71 3.5 0.9 0.9 3.6 3.2 3.26 3.25 3.97 3.97 3.96 3.96 3.96 3.96 3.26 3.25 2.5 1.5 2.8 2.4 2.08 2.08 2.07 2.06 2.05 2.04 1.91 1.89 0.5 2.0 2.08 2.08 2.07 2.06 2.05 2.04 1.91 1.89 S61

40 20 0 164.67 137.97 136.50 135.51 129.86 128.99 128.65 82.36 77.38 64.96 60 46.77 41.74 29.81 S62 Product, Table 2, Entry 11 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

0.5 1.5 2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5 10.5 2 2 3 1 2 2 1 1 2 1 1 4 1.36 1.38 1.40 1.45 1.46 1.48 1.51 1.56 1.63 1.63 1.66 1.67 1.74 1.76 1.81 1.82 1.82 1.83 1.84 1.85 1.91 1.91 1.93 1.94 1.96 1.97 1.99 2.98 2.98 2.99 3.84 3.84 3.85 4.88 4.90 4.91 4.93 6.16 6.16 6.17 6.18 6.25 6.25 6.26 6.27 7.34 7.34 7.34 7.35 7.35 7.35 7.36 7.36 7.37 7.37 7.37 7.38 7.38 7.38 7.41 7.42 7.42 7.43 7.43 7.44 Product, Table 2, Entry 12 1 -MR (500 Mz, CD 3) 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.98 2.98 2.99 3.84 3.84 3.85 4.88 4.90 4.91 4.93 6.16 6.16 6.17 6.18 6.25 6.25 6.26 6.27 S63

40 20 0 174.49 138.35 136.36 136.00 129.94 128.74 128.52 42.26 38.78 34.31 30.50 25.66 21.62 21.31 S64 77.03 64.37 51.50 Product, Table 2, Entry 12 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60

1.43 1.43 5 1 0-1 -2 S65 3 C F C 3 8.89 7.41 7.41 7.41 7.40 7.39 7.39 7.38 7.38 7.37 7.37 7.37 7.36 4.93 3.71 3.69 3.68 3.66 F F 1 4 2 2 11b: 1 -MR (500 Mz, CD 3 ) 14 13 12 11 10 9 8 7 6 5 4 3 2

40 23.55 20 0 S66 3 C F C 3 170.75 134.87 129.37 128.99 128.71 127.72 124.97 122.21 119.45 80.36 78.30 62.10 61.75 61.40 66 F F 11b: 13 C-MR (101 Mz, CD 3 ) 62.10 61.75 61.40 66 62.4 61.8 61.2 220 200 180 160 140 120 100 80 60

2.5 3.4 1.5 0.5 S67 1 -MR (500 Mz, CD 3 ) as ~ 9:1 mixture of rotamers 3 C C 2 0.9 4.9 0.1 0.1 0.3 2.1 10.5 9.5 8.5 7.5 6.5 5.5 4.5 3.5

18.60 20 0 S68 3 C C 2 167.18 138.01 135.37 129.48 128.97 128.80 120.44 78.32 13 C-MR (101 Mz, CD 3 ) 220 200 180 160 140 120 100 80 60 40