The N,S-Bidentate Ligand Assisted Pd-Catalyzed C(sp 2 )-H. Carbonylation using Langlois Reagent as CO Source. Supporting Information.

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1 Electronic upplementary Material (EI) for rganic & Biomolecular Chemistry. This journal is The Royal ociety of Chemistry 2018 The,-Bidentate Ligand Assisted Pd-Catalyzed C(sp 2 )-H Carbonylation using Langlois Reagent as C ource Xiao-Fang Li, Lin-Feng hi, Xing-Guo Zhang,* Xiao-Hong Zhang* College of chemical and materials engineering, Wenzhou University, Wenzhou , China zxg@wzu.edu.cn; kamenzxh@wzu.edu.cn upporting Information List of Contents 1. General Information General Procedure for the ynthesis of isoindoline-1,3-diones 2a-2u, 4a-4h ptimization of the Reaction Conditions The hydrolysis of compound 2a Data for All Compounds MR pectra for All Compounds X-ray crystal structure of compound 2a Data for Control Experiments

2 . General Information. Chemicals were either purchased or purified by standard techniques. 1 H MR and C MR spectra were measured on a 500 MHz spectrometer ( 1 H: 500 MHz, C: 125 MHz), using CDCl 3 as the solvent with tetramethylsilane (TM) as an internal standard at 120 o C temperature. Chemical shifts are given in δ relative to TM, the coupling constants J are given in Hz. High resolution mass spectra were recorded on an EI-Q-TF mass spectrometry. All reactions under air atmosphere were conducted using standard chlenk techniques. Melting points were measured on X4 melting point apparatus and uncorrected. Column chromatography was performed using EM ilica gel 60 ( mesh). 2. General Procedure for the ynthesis of isoindoline-1,3-diones 2a-2u, 4a-4h R 1 H R 2 R 2 R 3 Pd(TFA) 2 (10 mol%) + CF 3 2 a Cu(Tf) 2 (1.2 equiv) H 2 (4.0 equiv) PhCl, 120 o C R 1 2a - 2u, 4a-4h R 3 To a flame-dried chlenk tube with a magnetic stirring bar was charged with 1 (0.2 mmol), CF 3 2 a (0.54 mmol), Pd(TFA) 2 (.3 mg, 0.4 mmol), H 2 (4.0 equiv) in dry PhCl (2 ml) under air atmosphere. The reaction mixture was stirred at 120 o C until complete consumption of starting material as detected by TLC or GC M analysis. After the reaction was finished, the mixture was poured into ethyl acetate and evaporated under vacuum. The residue was purified by flash column chromatography (petroleum ether/ethyl acetate) to afford the desired products 2a-2u, 4a-4h. 2

3 3. -Table 1. ptimization of the Reaction Conditions a,b 1a H catalyst + a 2 CF 3 oxidant, H 2 2a Entry CF 3 2 a (equiv) Catalyst xidant (equiv) olvent Yield (%) Pd(Ac) 2 Cu(Tf) 2 (1.0) Dioxane Pd(Ac) 2 Cu(Tf) 2 (1.0) DM Pd(Ac) 2 Cu(Tf) 2 (1.0) DCE Pd(Ac) 2 Cu(Tf) 2 (1.0) DMF R Pd(Ac) 2 Cu(Tf) 2 (1.0) AcH 6% Pd(Ac) 2 Cu(Tf) 2 (1.0) THF R Pd(Ac) 2 Cu(Tf) 2 (1.0) PhCl PdCl 2 Cu(Tf) 2 (1.0) PhCl Pd(MeC) 2 Cl 2 Cu(Tf) 2 (1.0) PhCl Pd(TFA) 2 Cu(Tf) 2 (1.0) PhCl PdBr 2 Cu(Tf) 2 (1.0) PhCl i(dppp) 2 Cl 2 Cu(Tf) 2 (1.0) PhCl R 2.0 Co(acac) 2 Cu(Tf) 2 (1.0) PhCl R Pd(TFA) 2 CuCl 2 (1.0) PhCl Pd(TFA) 2 Cu(BF 4 ) 2 (1.0) PhCl Pd(TFA) 2 Cu( 3 ) 2 (1.0) PhCl Pd(TFA) 2 AgAc (1.2) PhCl R Pd(TFA) 2 Ag 2 C 3 (1.2) PhCl R Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl c 2.7 Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl d 2.7 Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl 56 3

4 25 e 2.7 Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl f 2.7 Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl g 2.7 Pd(TFA) 2 Cu(Tf) 2 (1.2) PhCl 54 a Reaction conditions: 1a (0.2 mmol), CF 3 2 a ( equiv), Pd catalyst (10 mol %), oxidant (1.0 equiv), H 2 (4.0 equiv) in solvent (2 ml) at 120 C under air atmosphere for 24 h; b Isolated yield; c 0 o C; d for 18h; e 2 atmosphere; f H 2 (6.0 equiv); g H 2 (2.0 equiv). 4. The hydrolysis of compound 2a 2a KH EtH/H 2, reflux HCl 63 % CH CH 2a (26.9 mg, 0.1 mmol) was refluxed with KH (33.6 mg, 0.6 mmol) in 2 ml EtH/H 2 (1:3) for 6 h. After the reaction was finished, dilute hydrochloric acid (1.2 ) was added in ice-bath and precipitated white solid was isolated by filtration, washed with water and dried. The phthalic acid was obtained. Yield (10.5 mg, 63 % yield. 4

5 5. Data for All Compounds. 2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2a): White solid (41.4 mg, 77% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), (m, 2H), (m, 1H), (m, 1H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.2, 8.6, 4.5, 2.1, 0.28, 0.25, 129.7, 128.1, 126.3, 124.0, HRM (EI) Calcd for C 15 H 11 2 a + ([M + a] + ) , Found: methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2b): Yellow solid (31.1 mg, 55% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.78 (d, J = 7.0 Hz, 1H), (m, 1H), 7.53 (d, J = 7.5 Hz, 1H), (m, 2H), (m, 1H), 7.24 (d, J = 7.5 Hz, 1H), 2.74 (s, 3H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 168.0, 167.2, 8.7, 8.6, 6.8, 3.9, 2.5, 0.3, 0.1, 129.7, 128.8, 127.8, 126.2, 121.6, 17.8, HRM (EI) Calcd for C 16 H 2 a + ([M + a] + ) , Found: methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2c): Yellow solid (40.8 mg, 72% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.84 (d, J = 7.5 Hz, 1H), 7.77 (s, 1H), 7.58 (d, J = 8.0 Hz, 1H), (m, 2H), (m, 1H), 7.24 (d, J = 8.0 Hz, 1H), 2.55 (s, 3H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.5, 167.3, 145.8, 8.7, 5.0, 2.5, 0.4, 0.2, 129.8, 129.6, 128.0, 126.3, 124.5, 123.9, 22.2, HRM (EI) Calcd for C 16 H 2 a + ([M + a] + ) , Found:

6 5-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2d): Yellow solid (36.3 mg, 64% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.84 (d, J = 8.0 Hz, 1H), 7.76 (s, 1H), 7.58 (d, J = 7.5 Hz, 1H), (m, 2H), (m, 1H), 7.24 (d, J = 8.0 Hz, 1H), 2.54 (s, 3H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.4, 167.3, 145.8, 8.6, 5.0, 2.5, 0.4, 0.1, 129.7, 129.5, 128.0, 126.3, 124.5, 123.9, 22.2, HRM (EI) Calcd for C 16 H 2 a + ([M + a] + ) , Found: ,6-dimethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2e): Yellow solid (33.3 mg, 56% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.60 (s, 1H), (m, 1H), 7.40 (d, J = 8.0 Hz, 1H), 7.33 (s, 1H), (m, 1H), 7.23 (d, J = 7.5 Hz, 1H), 2.69 (s, 3H), 2.48 (s, 3H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 168.0, 167.5, 145.2, 8.7, 8.5, 7.3, 2.9, 0.4, 0.0, 129.8, 127.7, 126.3, 126.1, 122.3, 21.9, 17.8, HRM (EI) Calcd for C 17 H 15 2 a + ([M + a] + ) , Found: ethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2f): Yellow solid (35.5 mg, 61% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.86 (d, J = 7.5 Hz, 1H), 7.80 (s, 1H), 7.60 (d, J = 7.5 Hz, 1H), (m, 2H), (m, 1H), 7.24 (d, J = 7.5 Hz, 1H), 2.84 (q, J = 7.5 Hz, 2H), 2.42 (s, 3H), 1.32 (t, J = 7.5 Hz, 3H). C MR (125 MHz, CDCl 3 ) δ 167.5, 167.3, 152.0, 8.6, 4.0, 2.6, 0.4, 0.1, 129.8, 129.7, 128.0, 126.3, 124.0, 123.3, 29.4, 16.4, HRM (EI) Calcd for C 17 H 15 2 a + ([M + a] + ) , Found:

7 5-methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2g): Yellow solid (31.1 mg, 52% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.85 (d, J = 8.5 Hz, 1H), (m, 3H), (m, 1H), (m, 2H), 3.94 (s, 3H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.1, 167.0, 165.1, 8.7, 4.7, 0.5, 0.1, 129.8, 128.0, 126.3, 125.7, 124.0, 120.5, 108.4, 56.2, HRM (EI) Calcd for C 16 H 3 a + ([M + a] + ) , Found: methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2h): Yellow solid (28.7 mg, 48% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.84 (d, J = 8.5 Hz, 1H), (m, 3H), (m, 1H), (m, 2H), 3.93 (s, 3H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.0, 166.9, 165.0, 8.6, 4.6, 0.3, 0.1, 129.7, 127.8, 126.2, 125.6, 123.9, 120.5, 108.4, 56.2, HRM (EI) Calcd for C 16 H 3 a + ([M + a] + ) , Found: (2-(methylthio)phenyl)-5H-[1,3]dioxolo[4,5-f]isoindole-5,7(6H)-dione (2i): Yellow solid (21.9 mg, 35% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 1H), (m, 1H), (m, 2H), (m, 1H), (m, 1H), 6.19 (s, 2H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.7, 153.1, 8.7, 0.4, 0.2, 129.8, 127.9, 127.7, 126.3, 104.3, 103.2, HRM (EI) Calcd for C 16 H ([M + H] + ) , Found: F 7

8 4-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2j): Yellow solid (11.5 mg, 20% yield). m.p. 6-8 o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 2H), (m, 3H), (m, 1H), 7.24 (d, J = 8.0 Hz, 1H), 2.43 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.1, 163.8, (d, J C-F = 265 Hz), 8.6, 7.0, 4.3, 0.4, 0.0, 129.7, 128.4, 126.5, (d, J C-F = 20.0 Hz), 120.2, (d, J C-F = 12.5 Hz), HRM (EI) Calcd for C 15 H 10 F 2 a + ([M +a] + ) , Found: F 5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2k): Yellow solid (28.1 mg, 49% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 1H), 7.63 (d, J = 7.0 Hz, 1H), (m, 3H), (m, 1H), 7.24 (d, J = 7.5 Hz, 1H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ (d, J C-F = Hz), 166.1, 165.8, 8.5, 4.9, 0.4, 0.0, 129.6, 128.1, 127.8, (d, J C-F = 10 Hz), 126.3, (d, J C-F = 23.8 Hz), (d, J C-F = 25 Hz), HRM (EI) Calcd for C 15 H 11 F 2 + ([M +H] + ) , Found: F 5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2l): Yellow solid (24 mg, 42% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 1H), 7.63 (d, J = 6.5 Hz, 1H), (m, 3H), (m, 1H), 7.24 (d, J = 8.0 Hz, 1H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ (d, J C-F = 255 Hz), 166.1, 165.8, 8.5, 4.9, 0.4, 0.1, 129.6, 128.1, 127.9, 126.4, (d, J C-F = 10 Hz), 126.3, (d, J = 23.8 Hz), (d, J = 25 Hz), HRM (EI) Calcd for C 15 H 11 F 2 + ([M +H] + ) , Found: Cl 5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2m): Yellow solid (35.3 mg, 60% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.92 (s, 1H), 7.89 (d, J = 8

9 8.0 Hz, 1H), 7.75 (d, J = 8.0 Hz, 1H), (m, 2H), (m, 1H), 7.23 (d, J = 7.5 Hz, 1H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.2, 165.8, 141.1, 8.5, 4.5, 3.7, 0.4, 0.1, 129.9, 129.6, 128.1, 126.3, 125.2, 124.3, HRM (EI) Calcd for C 15 H 11 Cl 2 + ([M +H] + ) , Found: Cl 5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2n): Yellow solid (34.1 mg, 58% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.92 (s, 1H), 7.88 (d, J = 8.0 Hz, 1H), 7.75 (d, J = 8.0 Hz, 1H), (m, 2H), (m, 1H), 7.23 (d, J = 7.5 Hz, 1H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.2, 165.9, 141.1, 8.5, 4.5, 3.7, 0.3, 0.1, 0.0, 129.6, 128.1, 126.3, 125.2, 124.3, HRM (EI) Calcd for C 15 H 11 Cl 2 + ([M +H] + ) , Found: Br 5-bromo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2o): Yellow solid (36.0 mg, 52% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.10 (s, 1H), 7.93 (d, J = 8.0 Hz, 1H), 7.82 (d, J = 8.0 Hz, 1H), (m, 1H), 7.43 (d, J = 7.5 Hz, 1H), (m, 1H), 7.23 (d, J = 8.0 Hz, 1H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.4, 165.9, 8.5, 7.5, 3.7, 0.6, 0.4, 0.0, 129.6, 129.4, 128.2, 127.3, 126.4, 125.4, HRM (EI) Calcd for C 15 H 11 Br 2 + ([M +H] + ) , Found: I 5-iodo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2p): White solid (18.1 mg, 23% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.31 (s, 1H), 8.16 (d, J = 8.0 Hz, 1H), 7.68 (d, J = 7.5 Hz, 1H), (m, 1H), 7.43 (d, J = 7.5 Hz, 1H), (m, 1H), 7.23 (d, J = 8.0 Hz, 1H), 2.42 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.7, 165.8, 143.5, 8.6, 3.4, 3.1, 1.2, 0.4, 0.0, 129.7, 128.3, 126.4, 125.3, 101.4, HRM (EI) Calcd for C 15 H 11 I 2 + ([M +H] + ) , Found:

10 F 3 C 2-(2-(methylthio)phenyl)-5-(trifluoromethoxy)isoindoline-1,3-dione (2q): Yellow solid(37.4 mg, 53% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.02 (d, J = 8.0 Hz, 1H), 7.80 (s, 1H), 7.61 (d, J = 8.0 Hz, 1H), (m, 1H), 7.44 (d, J = 7.5 Hz, 1H), (m, 1H), 7.24 (d, J = 8.0 Hz, 1H), 2.43 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 165.9, 165.7, 153.9, 8.5, 4.4, 0.5, 0.0, 129.9, 129.6, 128.3, , , 126.0, (q, J = Hz), 116.1, HRM (EI) Calcd for C 16 H 10 F 3 3 a + ([M +a] + ) , Found: F 3 C 2-(2-(methylthio)phenyl)-5-(trifluoromethyl)isoindoline-1,3-dione (2r): Yellow solid (30.3 mg, 45% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.24 (s, 1H), (m, 2H), (m, 1H), 7.45 (d, J = 8.0 Hz, 1H), (m, 1H), 7.25 (d, J = 7.5 Hz, 1H), 2.43 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 165.9, 165.8, 8.5, 6.6 (q, J = 34.0 Hz), 4.9, 2.8, 1.6, 0.6, 129.8, 129.6, 128.3, 126.5, 124.6, (q, J = Hz), 121.3, HRM (EI) Calcd for C 16 H 11 F 3 + ([M +H] + ) , Found: (2-(methylthio)phenyl)-5-nitroisoindoline-1,3-dione (2s): Yellow solid (11.3 mg, 18% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.78 (s, 1H), 8.67 (d, J = 8.0 Hz, 1H), 8.16 (d, J = 8.5 Hz, 1H), (m, 1H), 7.46 (d, J = 8.0 Hz, 1H), (m, 1H), 7.26 (d, J = 7.5 Hz, 1H), 2.43 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 165.1, 164.9, 152.2, 8.4, 6.4, 3.5, 0.7, 129.7, 129.5, 128.5, 128.4, 126.6, 125.3, 119.4, HRM (EI) Calcd for C 15 H ([M +H] + ) , Found:

11 Ph 2-(2-(methylthio)phenyl)-5-phenylisoindoline-1,3-dione (2t): Yellow solid (38.6 mg, 56% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.15 (s, 1H), (m, 2H), 7.65 (d, J = 7.5 Hz, 2H), (m, 2H), (m, 3H), (m, 1H), 7.24 (d, J = 6.0 Hz, 1H), 2.41 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.2, 167.1, 147.9, 9.1, 8.6, 3.0, 2.9, 0.5, 0.3, 0.2, 129.7, 129.3, 129.0, 128.1, 127.5, 126.3, 124.4, 122.5, HRM (EI) Calcd for C 21 H ([M +H] + ) , Found: (2-(methylthio)phenyl)-1H-benzo[f]isoindole-1,3(2H)-dione (2u): Yellow solid (35.1 mg, 55% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 8.46 (s, 2H), (m, 2H), (m, 2H), (m, 2H), (m, 2H), 2.43 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.0, 8.5, 5.8, 0.6, 0.5, 0.2, 129.6, 129.4, 128.2, 127.8, 126.4, 125.5, HRM (EI) Calcd for C 19 H ([M +H] + ) , Found: (4-methyl-2-(methylthio)phenyl)isoindoline-1,3-dione (4a): White solid (35.1mg, 62% yield), m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.22 (s, 1H), (m, 2H), 2.41 (s, 3H), 2.40 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 167.4, 140.4, 8.0, 4.4, 2.1, 129.4, 128.7, 127.6, 127.2, 123.9, 21.5, HRM (EI) Calcd for C 16 H a 2 + ([M + a] + ) , Found:

12 2-(4-ethoxy-2-(methylthio)phenyl)isoindoline-1,3-dione (4b): White solid (40.7mg, 65% yield), m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.14 (d, J = 8.8 Hz, 1H), 6.90 (s, 1H), 6.79 (d, J = 8.8 Hz, 1H), 4.07 (q, J = 6.8 Hz, 2H), 2.40 (s, 3H), 1.44 (t, J = 6.8 Hz, 3H). C MR (125 MHz, CDCl 3 ) δ 167.6, 160.2, 9.8, 4.4, 2.1, 0.5, 123.9, 122.4, 114.3, 111.5, 64.0, 16.1, HRM (EI) Calcd for C 17 H ([M + H] + ) , Found: Cl 2-(4-chloro-2-(methylthio)phenyl)isoindoline-1,3-dione (4c): White solid (36.4mg, 60% yield), m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.37 (s, 1H), 7.30 (d, J = 9.6 Hz, 1H), 7.21 (d, J = 8.4 Hz, 1H), 2.47 (s, 3H). C MR (125 MHz, CDCl 3 ) δ 166.9, 140.9, 6.2, 4.6, 1.9, 0.7, 128.3, 127.0, 126.1, 124.0, HRM (EI) Calcd for C 15 H 10 Cla 2 + ([M + a] + ) , Found: CF 3 2-(2-(methylthio)-4-(trifluoromethyl)phenyl)isoindoline-1,3-dione (4d): White solid (34.3mg, 51% yield). m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.69 (d, J = 8.4 Hz, 1H), 7.50 (s, 1H), 7.45 (d, J = 8.4 Hz, 1H), 2.47 (s, 3H). C MR (125 MHz, CD 3 Cl) δ , , 4.72, 1.85, , (q, J = 33.8 Hz), 126.8, , , (q, J = Hz), 1.7, HRM (EI) Calcd for C 16 H 10 F ([M +H] + ) , Found:

13 2-(2-(ethylthio)phenyl)isoindoline-1,3-dione (4e): White solid (29.4 mg, 52% yield), m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.57 (d, J = 8.0 Hz, 1H), (m, 1H), (m, 1H), 7.31 (d, J = 6.8 Hz, 1H), 2.93 (q, J = 7.6 Hz, 2H), 1.26 (t, J = 7.6 Hz, 3H). C MR (125 MHz, CDCl 3 ) δ 167.3, 7.0, 4.4, 2.1, 1.6, 0.4, 0.0, 129.8, 127.0, 123.9, 28.2, HRM (EI) Calcd for C 16 H ([M + H] + ), , Found: (2-(cyclohexylthio)phenyl)isoindoline-1,3-dione (4f): White solid (41.1mg, 61% yield), m.p o C. 1 H MR (400 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), 7.62 (d, J = 8.0 Hz, 1H), (m, 1H), (m, 1H), 7.28 (d, J = 7.6 Hz, 1H), (m, 1H), (m, 2H), (m, 2H), (m, 1H), (m, 5H). C MR (125 MHz, CDCl 3 ) δ 167.4, 5.9, 4.4, 3.2, 3.1, 2.2, 129.9, 129.8, 127.8, 124.0, 47.5, 33.5, 26.1, HRM (EI) Calcd for C 20 H 19 a 2 + ([M + a] + ) , Found: (2-(phenylthio)phenyl)isoindoline-1,3-dione (4g): Yellow solid (35.1 mg, 53% yield). m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ (m, 2H), (m, 2H), (m, 3H), (m, 3H), (m, 3H). C MR (125 MHz, CDCl 3 ) δ 167.1, 6.6, 4.5, 4.3, 3.0, 2.0, 1.9, 1.8, 0.1,

14 29.9, 129.3, 128.2, 127.6, HRM (EI) Calcd for C 20 H 2 a + ([M +a] + ) , Found: (2-(methylsulfinyl)phenyl)isoindoline-1,3-dione (11): Yellow solid (24.3 mg, 85% yield). m.p o C. 1 H MR (500 MHz, DM) δ 8.17 (d, J = 7.5 Hz, 1H), (m, 2H), (m, 3H), (m, 1H), 7.74 (d, J = 8.0 Hz, 1H), 3.19 (s, 3H). C MR (125 MHz, DM) δ 167.5, 8.5, 5.3, 5.2, 2.8, 2.1, 1.2, 1.1, 0.3, 124.0, HRM (EI) Calcd for C 15 H ([M +H] + ) , Found: Cl 5-chloro-2-(2-(phenylthio)phenyl)isoindoline-1,3-dione (12): White solid (27.4 mg, 75% yield), m.p o C. 1 H MR (500 MHz, CDCl 3 ) δ 7.90 (s, 1H), 7.87 (d, J = 8.0 Hz, 1H), 7.74 (d, J = 8.0 Hz, 1H), 7.39 (s, 3H), (m, 3H), 7.22 (d, J = 7.5 Hz, 3H). C MR (125 MHz, CDCl 3 ) δ , , , 6.49, 4.37, 3.57, 3.14, 1.91, 1.56, 0.27, , , , , , , , HRM (EI) Calcd for C 20 H Cl 2 + ([M + H] + ) , Found:

15 6. MR pectra for All Compounds. 1 H MR:2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2a) C MR:2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2a) 15

16 H MR:4-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2b) C MR:4-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2b) 16

17 H MR:5-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2c) C MR:5-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2c) 17

18 H MR:5-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2d) C MR:5-methyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2d) 18

19 H MR:4,6-dimethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2e) C MR:4,6-dimethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2e) 19

20 H MR:5-ethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2f) C MR:5-ethyl-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2f) 20

21 H MR:5-methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2g) C MR:5-methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2g) 21

22 H MR:5-methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2h) C MR:5-methoxy-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2h) 22

23 H MR:6-(2-(methylthio)phenyl)-5H-[1,3]dioxolo[4,5-f]isoindole-5,7(6H)-dione (2i) C MR: 6-(2-(methylthio)phenyl)-5H-[1,3]dioxolo[4,5-f]isoindole-5,7(6H)-dione (2i) 23

24 H MR:4-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2j) C MR:4-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2j) 24

25 H MR:5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2k) C MR: 5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2k) 25

26 H MR:5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2l) C MR: 5-fluoro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2l) 26

27 H MR:5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2m) C MR:5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2m) 27

28 H MR:5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2n) C MR:5-chloro-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2n) 28

29 H MR:5-bromo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2o) C MR: 5-bromo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2o) 29

30 H MR: 5-iodo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2p) C MR: 5-iodo-2-(2-(methylthio)phenyl)isoindoline-1,3-dione (2p) 30

31 H MR:2-(2-(methylthio)phenyl)-5-(trifluoromethoxy)isoindoline-1,3-dione (2q) C MR: 2-(2-(methylthio)phenyl)-5-(trifluoromethoxy)isoindoline-1,3-dione (2q) 31

32 H MR:2-(2-(methylthio)phenyl)-5-(trifluoromethyl)isoindoline-1,3-dione(2r) C MR:2-(2-(methylthio)phenyl)-5-(trifluoromethyl)isoindoline-1,3-dione(2r) 32

33 H MR:2-(2-(methylthio)phenyl)-5-nitroisoindoline-1,3-dione (2s) C MR: 2-(2-(methylthio)phenyl)-5-nitroisoindoline-1,3-dione (2s) 33

34 H MR:2-(2-(methylthio)phenyl)-5-phenylisoindoline-1,3-dione (2t) C MR:2-(2-(methylthio)phenyl)-5-phenylisoindoline-1,3-dione (2t) 34

35 H MR: 2-(2-(methylthio)phenyl)-1H-benzo[f]isoindole-1,3(2H)-dione (2u) C MR: 2-(2-(methylthio)phenyl)-1H-benzo[f]isoindole-1,3(2H)-dione (2u) 35

36 H MR: 2-(4-methyl-2-(methylthio)phenyl)isoindoline-1,3-dione (4a) C MR: 2-(4-methyl-2-(methylthio)phenyl)isoindoline-1,3-dione (4a) 36

37 H MR: 2-(4-ethoxy-2-(methylthio)phenyl)isoindoline-1,3-dione (4b) C MR: 2-(4-ethoxy-2-(methylthio)phenyl)isoindoline-1,3-dione (4b) 37

38 H MR: 2-(4-chloro-2-(methylthio)phenyl)isoindoline-1,3-dione (4c) C MR: 2-(4-chloro-2-(methylthio)phenyl)isoindoline-1,3-dione (4c) 38

39 H MR: 2-(2-(methylthio)-4-(trifluoromethyl)phenyl)isoindoline-1,3-dione (4d) C MR: 2-(2-(methylthio)-4-(trifluoromethyl)phenyl)isoindoline-1,3-dione (4d) 39

40 H MR: 2-(2-(ethylthio)phenyl)isoindoline-1,3-dione (4e) C MR: 2-(2-(ethylthio)phenyl)isoindoline-1,3-dione (4e) 40

41 H MR: 2-(2-(cyclohexylthio)phenyl)isoindoline-1,3-dione (4f) C MR: 2-(2-(cyclohexylthio)phenyl)isoindoline-1,3-dione (4f) 41

42 H MR:2-(2-(phenylthio)phenyl)isoindoline-1,3-dione(4g) C MR:2-(2-(phenylthio)phenyl)isoindoline-1,3-dione(4g) 42

43 H MR:2-(2-(methylsulfinyl)phenyl)isoindoline-1,3-dione (11) C MR:2-(2-(methylsulfinyl)phenyl)isoindoline-1,3-dione (11) 43

44 H MR: 5-chloro-2-(2-(phenylthio)phenyl)isoindoline-1,3-dione (12) C MR: 5-chloro-2-(2-(phenylthio)phenyl)isoindoline-1,3-dione (12) 44

45 7. X-ray crystal structure of compound 2a upplementary crystallographic data was deposited at the Cambridge Crystallographic Data Centre (CCDC) under the numbers CCDC (2a) and can be obtained free of charge from via 8. Data for Control Experiments H tandard Conditions CF 3 2 a, H % 18 : 16 = 4 : 3 To a flame-dried chlenk tube with a magnetic stirring bar was charged with 1a (0.2 mmol), CF 3 2 a (0.54 mmol), Pd(CF 3 C 2 ) 2 (.3 mg, 0.4 mmol), H 2 18 (4.0 equiv, 16 mg, 0.8 mmol) in dry PhCl (2 ml) under air atmosphere. The reaction mixture was stirred at 120 o C until complete consumption of starting material as detected by TLC or GC M analysis. After the reaction was finished, the mixture was poured into ethyl acetate and evaporated under vacuum. The residue was purified by flash column chromatography (petroleum ether/ethyl acetate) to afford the desired products 18-2a. 45

46 18-2a HRM (EI): Calcd for C 15 H a + ([M + a] + ) , Found:

47 18-2a GC analysis 47

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