Cu-Catalyzed/Mediated Synthesis of N-Fluoroalkylanilines from Arylboronic Acids: Fluorine Effect on the Reactivity of Fluoroalkylamines
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- Ἑκάβη Διδασκάλου
- 5 χρόνια πριν
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1 Electronic Supplementary Material (ESI) for Organic & Biomolecular Chemistry. This journal is The Royal Society of Chemistry 2018 S1 Cu-Catalyzed/Mediated Synthesis of N-Fluoroalkylanilines from Arylboronic Acids: Fluorine Effect on the Reactivity of Fluoroalkylamines Hui Wang, Yuan-Hong Tu, De-Yong Liu, Xiang-Guo Hu* National Engineering Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang,330022, China. Contents 1. General information General procedure Characterization data of Compounds X-ray structure of 3f and 11b Refeence NMR spectra of novel compounds... 16
2 S2 1. General information All purchased reagents were used without further purification unless otherwise noted. All solvents were dried over activated 4Å molecular sieves. Analytical TLC was performed with 0.2 mm silica gel 60F plates with 254 nm fluorescent indicator. TLC plates were visualized by ultraviolet light or by treatment with a spray off Pancaldi reagent {Ce(SO 4) 2}. Column chromatograph was performed on mesh silica gal. NMR spectra were measured in CDCl 3 (TMS, 1H δ = 0; CDCl 3, 1H δ = 7.26, 13C δ = 77.36) ( 1 H at 400 MHz, 13 C at 100 MHz, 19 F at 376 MHz) magnetic resonance spectrometer Chemical shifs (δ) are reported in ppm, and coupling constants (J) are in Hz. The following abbreviations were used to explain the multiplicities: s = singlet, d = doublet, t = triplet, q = quartet, m = multiplet. What should be noted is that all petroleum ether and ethyl acetate (EtOAc) used for flash column chromatography were redistilled twice before using, but the trace amount of residue of impurities such as H-grease and silicone grease could still be seen on NMR spectra of some products
3 S3 2. General procedure 2.1 Procedure A: Cu-catalyzed reaction of aryl boric acid with CF 3CH 2NH 2 or HCF 2CH 2NH 2 To a reaction tube containing Cu(OAc) 2 (9.1 mg, 0.05 mmol, 0.2 equiv), aryl boronic acid (0.25 mmol, 1.0 equiv) and 4 Å MS was added TEA (105 µl, 0.75 mmol, 3 equiv), CF 3CH 2NH 2 (40 µl, 0.5 mmol, 2.0 equiv) and CH 3CN (2.5 ml) were added successively via syringe. The mixture was stirred vigorously under 80 ºC overnight. Then the reaction solution was filtered over a sintered-glass funnel with a tightly packed pad of Celite (1 cm thick), and the filter cake was rinsed with DCM (20 ml). The combined filtrates were concentrated. The residue was purified with silica gel column chromatography to provide the desired product. 2.2 Procedure B: Cu-promoted coupling reactions of CF 3CF 2CH 2NH 2 or CF 3CF 2CF 2CH 2NH 2 with boronic acids To a reaction tube containing Cu(OAc) 2 (45.4 mg, 0.25 mmol, 1.0 equiv), aryl boronic acid (0.25 mmol, 1.0 equiv) and 4 Å MS was added TEA (105 µl, 0.75 mmol, 3 equiv), CF 3CF 2CH 2NH 2 (54 µl, 0.5 mmol, 2.0 equiv) and CH 3CN (2.5 ml) were added successively via syringe. The mixture was stirred vigorously under 80 ºC overnight. Then the reaction solution was filtered over a sintered-glass funnel with a tightly packed pad of Celite (1 cm thick), and the filter cake was rinsed with DCM (20 ml). The combined filtrates were concentrated. The residue was purified with silica gel column chromatography to provide the desired product. 2.3 Optimization reaction Table S1 the effect of solvents Solvent Yield (%) CH 3CN 70% DCM 17% toluene 41% DMF 65% MeOH 0 dioxane 48%
4 S4 DCE 35% THF 45% 4-biphenylboronic acid (0.10 mmol, 1 equiv), CF3CH2NH2 (0.20 mmol, 2 equiv), Cu(OAc)2 (0.1 mmol, 1 equiv), solvents (2.0 ml), T= 80 ºC, TEA (0.2 mmol, 2 equiv), 4Å MS, overnight. Yields were determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard. Table S2 Base screen Ph B(OH) 2 + H 2 N CF 3 Cu(OAc) 2,(1equiv ) base, 80 C, CH 3 CN, Ph 4Å MS, overnight H N CF 3 base Yield (%) NaOAc 58% CsCO3 26% DBU 16% DIPEA 63% TEA 70% K 3PO 4 58% pyridine 52% K 2CO 3 39% Na 2CO3 47% 4-biphenylboronic acid (0.1 mmol, 1 equiv), CF3CH2NH2 (0.2 mmol, 2 equiv), Cu(OAc)2 (0.1 mmol, 1 equiv), CH3CN (2.0 ml), T= 80 ºC, base (0.2 mmol, 2 equiv), 4 Å MS, overnight. Yields determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard. Table S3 Evaluation of copper salts Cu salts Yield 3a (%) Cu(OAc) 2 70% Cu(OAc) 2 H 2O 67% CuCl 2% CuBr 0 Cu(OTf) 2 5% Cu(acac) 2 0 CuBr 2 3% CuCN 0 CuI 0 4-biphenylboronic acid (0.1 mmol, 1 equiv), CF3CH2NH2 (0.2 mmol, 2 equiv), Cu salts (0.1 mmol, 1equiv), CH3CN (2.0 ml), T= 80 ºC, TEA (0.2 mmol, 2 equiv), 4Å MS, overnight. Yields were determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard.
5 S5 Table S4 Exploration the equivalent of Cu(OAc)2 Cu(OAc) 2 yeild 1equiv 70% 0.2equiv 60% 0.1equiv 24% 0.05equiv 23% 4-biphenylboronic acid (0.10 mmol, 1 equiv), CF3CH2NH2 (0.20 mmol, 2 equiv), CH3CN (2.0 ml), T= 80 ºC, TEA (0.2 mmol, 2 equiv), 4Å MS, overnight. Yields were determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard. Table S5 The effect of concentration. 4-biphenylboronic acid (mmol) Yield (%) % % % The amount of reagents was adjusted while the volume of the solvent was kept constant. 4-biphenylboronic acid (1 equiv), CF3CH2NH2 (2 equiv), Cu(OAc)2, ( 0.2 equiv), TEA (3 equiv), CH3CN (2.0 ml), T = 80 ºC, base, 4Å MS, overnight. Yields were determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard. Table S6 Control experiments entry Yield(%) no copper 0 no base 32% 4-biphenylboronic acid (0.10 mmol, 1 equiv), CF3CH2NH2 (0.20 mmol, 2 equiv), TEA (0.3 mmol, 3 equiv), CH3CN (2.0 ml), T = 80 ºC, 4Å MS, overnight. Yields were determined by 19 F NMR spectroscopy using benzotrifluoride as an internal standard.
6 S6 3. Characterization data of Compounds F 3 C N H Ph 3a N-(2,2,2-trifluoroethyl)-[1,1'-biphenyl]-4-amine Purified by flash column chromatography (petroleum ether/acoet = 100:1), white solid (39.6 mg, 63% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.53 (d, J = 7.6 Hz, 2H), 7.47 (d, J = 8.4 Hz, 2H), 7.40 (t, J = 7.6 Hz, 2H), (m, 1H), 6.76 (d, J = 8.4 Hz, 2H), 4.20 (s, 1H), 3.80 (q, J = 9.0 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 145.6, 140.8, 132.1, 128.7, 128.1, 126.4, (q, J = Hz), 113.4, 46.0 (q, J = 33.3 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.9 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 1 ) 4-(tert-butyl)-N-(2,2,2-trifluoroethyl)aniline Purified by flash column chromatography (petroleum ether 100%), pale yellow liquid (43 mg, 74% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.24 (d, J = 8.7 Hz, 2H), 6.64 (d, J = 8.6 Hz, 2H), 3.83 (s, 1H), (m, 2H), 1.28 (s, 9H); 13 C NMR (100 MHz, CDCl 3) δ 143.8, 141.9, 126.2, (q, J = Hz), 112.9, 46.3 (q, J = 33.5 Hz), 34.0, 31.5; 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.7 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F); HRMS (ESI) m/z calcd for C 12H 17F 3N + [M+H] , found N-(2,2,2-trifluoroethyl)aniline Purified by flash column chromatography (petroleum ether 100%), pale yellow liquid (33.7 mg, 77% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.22 (dd, J = 8.5, 7.3 Hz, 2H), 6.81 (tt, J = 7.4, 1.1 Hz, 1H), 6.69 (d, J = 8.0 Hz, 2H), 3.91 (s, 1H), 3.77 (qd, J = 8.9, 7.0 Hz, 2H); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.9 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 1 ) 4-bromo-N-(2,2,2-trifluoroethyl)aniline Purified by flash column chromatography (petroleum ether 100%), yellow liquid (49.2 mg, 77% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.29 (d, J = 8.8 Hz, 2H), 6.57 (d, J = 8.8 Hz, 2H), 3.96 (s, 1H), (m, 2H); 13 C NMR (100 MHz, CDCl 3) δ 145.3, 132.2, (q, J = Hz), 114.7, 110.8, 46.0 (q, J = 33.7 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.7 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ
7 S7 (s, 3F). (Consistent with previous reported values 1.) 3-nitro-N-(2,2,2-trifluoroethyl)aniline Purified by flash column chromatography (petroleum ether/ Dichloromethane = 5:1), yellow solid (34.9 mg, 63% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.65 (dd, J = 8.2, 2.0 Hz, 1H), 7.52 (s, 1H), 7.35 (t, J = 8.1 Hz, 1H), 6.98 (dd, J = 8.2, 2.4 Hz, 1H), 4.33 (s, 1H), 3.85 (qd, J = 8.7, 1.6 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 149.3, 147.0, 130.1, (q, J = Hz), 119.0, 113.8, 107.0, 45.6 (q, J = 34.2 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.8 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 1 ) 4-((2,2,2-trifluoroethyl)amino)benzonitrile Purified by flash column chromatography (petroleum ether/acoet = 10:1), white solid (35.7 mg, 71% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.48 (d, J = 8.7 Hz, 2H), 6.70 (d, J = 8.8 Hz, 2H), 4.59 (s, 1H), 3.83 (qd, J = 7.0, 1.7 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 149.6, 133.7, (q, J = Hz), 119.7, 112.6, 100.9, 44.9 (q, J = 34.1 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.7 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 2 ) O ethyl 4-((2,2,2-trifluoroethyl)amino)benzoate OEt Purified by flash column chromatography (petroleum F 3 C N ether/dichloromethane = 3:1), white solid (39.1 mg, 63% yield); 1 H H 3g NMR (400 MHz, CDCl 3) δ 7.91 (d, J = 8.8 Hz, 2H), 6.67 (d, J = 8.8 Hz, 2H), 4.47 (s, 1H), 4.33 (q, J = 7.2 Hz, 2H), 3.82 (q, J = 9.0 Hz, 2H), 1.37 (t, J =7.1 Hz, 3H); 13 C NMR (100 MHz, CDCl 3) δ 166.6, 150.1, 131.5, (q, J = Hz), 120.7, 112.0, 60.5, 45.2 (q, 34.0 Hz), 14.4; 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.7 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 1 ) 1-(4-((2,2,2-trifluoroethyl)amino)phenyl)ethan-1-one Purified by flash column chromatography (petroleum ether/ AcOEt = 9:1), white solid (35.2 mg, 65% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.86 (d, J = 8.9 Hz, 2H), 6.69 (d, J = 8.7 Hz, 2H), 4.75 (s, 1H), (m, 2H), 2.52 (s, 3H); 13 C NMR (100 MHz, CDCl 3) δ 196.5, 150.4, 130.7, 128.4, (q, J = Hz), 112.0, 45.2 (q, J = 34.2 Hz), 26.1; 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.8 Hz, 3F); 19 F { 1 H} NMR (376
8 S8 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 2 ) 6-methoxy-N-(2,2,2-trifluoroethyl)naphthalen-2-amine Purified by flash column chromatography (petroleum ether/acoet = 100:1), white solid (46.7 mg, 73% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.57 (dd, J = 12.8, 9.1 Hz, 2H), 7.09 (dd, J = 8.9, 2.6 Hz, 1H), 7.04 (d, J = 2.6 Hz, 1H), 6.91 (d, J = 7.9 Hz, 2H), 3.88 (s, 3H), (m, 2H); 13 C NMR (100 MHz, CDCl 3) δ 155.7, 142.3, 130.0, 129.0, , (q, J = Hz), 119.2, 117.8, 106.4, 106.1, 55.3, 46.4 (q, J = 33.5 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.9 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F); HRMS (ESI) m/z calcd for C 13H 13F 3NO + [M+H] , found methoxy-N-(2,2,2-trifluoroethyl)aniline Purified by flash column chromatography (petroleum ether/acoet = 50:1), yellow liquid (37 mg, 72% yield); 1 H NMR (400 MHz, CDCl 3) δ 6.80 (d, J = 9.0 Hz, 2H), 6.66 (d, J = 8.9 Hz, 2H), 3.75 (s, 3H), 3.70 (q, J = 8.9 Hz, 2H), 3.50(s, 1H); 13 C NMR (100 MHz, CDCl 3) δ 153.1, 140.3, (q, J = Hz), 114.9, 114.7, 55.7, 47.1 (q, J = 33.1 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 9.0 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F). (Consistent with previous reported values. 1 ) N-(2,2,2-trifluoroethyl)dibenzo[b,d]thiophen-4-amine Purified by flash column chromatography (petroleum ether, 100%), white solid (15.1 mg, 21% yield); 1 H NMR (400 MHz, CDCl 3) δ 8.10 (dd, J = 5.8, 3.2 Hz, 1H), 7.84 (dd, J = 5.9, 3.1 Hz, 1H), 7.66 (d, J = 7.8 Hz, 1H), 7.43 (dd, J = 5.9, 3.1 Hz, 2H), 7.36 (t, J = 7.8 Hz, 1H), 6.78 (d, J = 7.8 Hz, 1H), (m, 3H); 13 C NMR (400 MHz, CDCl 3) δ 141.0, 138.3, 136.8, 136.4, 126.8, 126.1, 125.9, (q, J = Hz), 124.7, 123.0, 122.1, 113.1, 108.2, 46.1 (q, J = 33.4 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 8.3 Hz, 3F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F); HRMS (ESI): calcd. for C 14H 11F 3NS + [M+H] , found N-(2,2-difluoroethyl)-[1,1'-biphenyl]-4-amine Purified by flash column chromatography (petroleum ether, 100%), white solid (48.1 mg, 81% yield); 1 H NMR (400 MHz, CDCl 3) δ (m, 2H), 7.45 (J = 8.6 Hz, 2H), 7.39 (t, J = 7.7 Hz, 2H), (m, 1H), 6.71 (d, J =
9 S9 8.6 Hz, 2H), 5.92 (tt, J = 56.2, 4.4 Hz, 1H), 3.92 (s, 1H), 3.55 (tdd, J = 14.3, 6.6, 4.2 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 146.2, 140.9, 131.7, 128.7, 128.2, 126.4, 126.4, 114.5, (t, J = Hz), 113.4, 46.5 (t, J = 25.7 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 56.3, 14.5 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F ); HRMS (ESI) m/z calcd for C 14H 14F 2N + [M+H] , found (tert-butyl)-N-(2,2-difluoroethyl)aniline Purified by flash column chromatography (petroleum ether, 100%), yellow liquid (45.8 mg, 86% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.23 (d, J = 8.7 Hz, 2H), 6.60 (d, J = 8.7 Hz, 2H), 5.88 (tt, J = 56.1, 4.2 Hz, 1H), 3.76 (s, 1H), 3.49 (td, J = 14.3, 4.3 Hz, 2H), 1.28 (s, 9H); 13 C NMR (100 MHz, CDCl 3) δ 144.4, 141.6, 126.3, (t, J = Hz), 112.9, 46.8 (t, J = 26.2 Hz), 34.0, 31.6; 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 56.3, 14.3 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 12H 18F 2N + [M+H] , found N-(2,2-difluoroethyl)aniline Purified by flash column chromatography (petroleum ether, 100%), pale yellow liquid (36.6 mg, 93% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.21 (dd, J = 8.5, 7.3 Hz, 2H), (m, 1H), 6.66 (m, 2H), 5.91 (tt, J = 56.1, 4.0 Hz, 2H), 3.85 (s, 1H), 3.53 (tdd, J = 14.4, 6.7, 4.3 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 146.8, 129.5, 118.7, (t, J =241.2 Hz), 113.1, 46.5 (t, J = 26.2 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 56.0, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F). HRMS (ESI) m/z calcd for C 8H 9BrF 2N + [M+H] +, , found bromo-N-(2,2-difluoroethyl)aniline Purified by flash column chromatography (petroleum ether, 100%), yellow liquid (54.6 mg, 92% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.28 (d, J = 8.8 Hz, 2H), 6.53 (d, J = 8.8 Hz, 2H),5.89 (tt, J = 55.9, 14.2 Hz, 1H), 3.89 (s, 1H), 3.50 (td, J = 14.5, 4.1 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 145.8, 132.2, 114.7, (t, J = Hz), 110.4, 46.4 (t, J = 26.0 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 56.2, 14.5 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 8H 9BrF 2N + [M+H] , found
10 S10 N-(2,2-difluoroethyl)-3-nitroaniline Purified by flash column chromatography (petroleum ether / Dichloromethane = 5:1), yellow solid (34.7 mg, 69% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.60 (dd, J = 8.1, 2.0 Hz, 1H), 7.48 (t, J = 2.3 Hz, 1H), 7.33 (t, J = 8.1 Hz, 1H), 6.96 (dd, J = 8.1, 2.4 Hz, 1H), 5.96 (tt, J = 55.6, 3.9 Hz, 1H), 4.29 (s, 1H), 3.63 (tdd, J = 14.6, 6.7, 4.0 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 149.4, 147.8, 130.1, 119.1, (t, J = Hz), 113.3, 106.7, 46.0 (t, J = 25.8 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 55.6, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 8H 9F 2N 2O + 2 [M+H] , found ((2,2-difluoroethyl)amino)benzonitrile Purified by flash column chromatography (petroleum ether / EtOAc = 10:1), white solid (36.3 mg, 80% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.46 (d, J = 8.9 Hz, 2H), 6.66 (d, J = 8.8 Hz, 2H), 5.93 (tt, J = 55.5, 4.0 Hz, 1H), 4.51 (s, 1H), 3.60 (tdd, J = 14.8, 6.5, 4.0 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 150.3, 133.9, 120.0, (t, J = Hz), 112.6, 100.4, 45.5 (t, J = 25.9 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 55.9, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F). (Consistent with previous reported values. 2 ) ethyl 4-((2,2-difluoroethyl)amino)benzoate Purified by flash column chromatography (petroleum ether / Dichloromethane = 3:1), white solid (47.7 mg, 83% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.90 (d, J = 8.9 Hz, 2H), 6.63 (d, J = 8.8 Hz, 2H), 5.92 (tt, J = 55.4, 4.1 Hz, 1H), 4.39 (s, 1H), 4.32 (q, J = 7.1 Hz, 2H), 3.60 (tdd, J = 14.5, 6.6, 4.0 Hz, 2H), 1.37 (t, J = 7.1 Hz, 3H); 13 C NMR (100 MHz, CDCl 3) δ 166.6, 150.6, 131.6, 120.3, (t, J = Hz), 111.8, 60.4, 45.7 (t, J = 26.1 Hz), 14.4; 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 55.8, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 11H 14F 2NO + 2 [M+H] , found (4-((2,2-difluoroethyl)amino)phenyl)ethan-1-one Purified by flash column chromatography (petroleum ether / Dichloromethane = 1:1), white solid (36.7 mg, 74% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.85 (d, J = 8.9 Hz, 2H), 6.65 (d, J = 8.5 Hz, 2H), (m, 1H), 4.58
11 S11 (s, 1H), 3.62 (tdd, J = 14.6, 6.7, 4.0 Hz, 2H), 2.51 (s, 3H); 13 C NMR (100 MHz, CDCl 3) δ 196.5, 151.0, 130.8, 127.9, (t, J = Hz), 111.8, 45.6 (t, J = 26.2 Hz), 26.1; 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 55.8, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2 F); HRMS (ESI) m/z calcd for C 10H 12F 2NO + [M+H] , found N-(2,2-difluoroethyl)-6-methoxynaphthalen-2-amine Purified by flash column chromatography (petroleum ether / EtOAc = 50:1), white solid (40.3 mg, 68% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.55 (dd, J = 11.9, 8.7 Hz, 2H), (m, 2H), (m, 2H), 5.97 (tt, J = 56.2, 4.2 Hz, 1H), 3.87 (s, 3H), 3.60 (td, J = 14.4, 4.2 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 155.6, 142.9, 130.1, 128.8, 128.2, 127.6, 119.1, 118.1, (t, J = Hz), 106.2, 105.8, 55.5, 46.7 (t, J = 26.3 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 55.7, 14.6 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 13H 14F 2NO + [M+H] , found N-(2,2-difluoroethyl)-4-methoxyaniline Purified by flash column chromatography (petroleum ether / EtOAc = 50:1), yellow liquid (46.6 mg, 71% yield); 1 H NMR (400 MHz, CDCl 3) δ 6.80 (d, J = 9.1 Hz, 2H), 6.63 (d, J = 9.1 Hz, 2H), 5.91 (tt, J = 56.2, 4.1 Hz, 1H), 3.75 (s, 3H), 3.62 (s, 1H), 3.47 (td, J = 14.4, 4.3 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 153.0, 140.8, 115.0, (t, J = Hz), 114.6, 55.8, 47.5 (t, J = 25.8 Hz); 19 F NMR (376 MHz, CDCl 3) δ (dt, J = 56.4, 14.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F). (Consistent with previous reported values. 2 ) N-(2,2-difluoroethyl)dibenzo[b,d]thiophen-4-amine Purified by flash column chromatography (petroleum ether, 100%), white solid (24 mg, 36% yield); 1 H NMR (400 MHz, CDCl 3) δ 8.12 (dd, J = 6.0, 3.2 Hz, 1H), 7.86 (dd, J = 5.8, 3.2 Hz, 1H), 7.66 (d, J = 7.8 Hz, 1H), 7.45 (dd, J = 5.9, 3.2 Hz, 2H), 7.38 (t, J = 7.8 Hz, 1H), 6.02 (tt, J = 56.0, 4.2 Hz, 1H), 3.85 (s, 1H), (m, 2H); 13 C NMR (100 MHz, CDCl 3) δ 141.5, 138.4, 136.8, 136.4, 126.8, 126.1, 125.9, 124.6, 123.0, 122.1, (t, J = Hz), 112.8, 107.8, 46.6 (t, J = 26.5 Hz); 19 F NMR (376 MHz, CDCl 3) δ (tt, J = 56.1, 14.1 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 2F); HRMS (ESI) m/z calcd for C 14H 12F 2NS + [M+H] , found
12 S12 N-(2,2,3,3,3-pentafluoropropyl)-[1,1'-biphenyl]-4-amine Purified by flash column chromatography (petroleum ether, 100%), white solid (51.1 mg, 68% yield); 1 H NMR (400 MHz, CDCl 3) δ (m, 2H), 7.47 (d, J = 8.6 Hz, 2H), 7.40 (t, J = 7.7 Hz, 2H), (m, 1H), 6.76 (d, J = 8.6 Hz, 2H), 3.94 (t, J = 6.5 Hz, 1H), 3.86 (td, J = 14.6, 6.8 Hz, 2H); 13 C NMR (100 MHz, CDCl 3) δ 145.7, 140.8, 132.2, 128.7, 128.1, 126.5, 126.5, (qt, J = 286.0, 35.3 Hz), (tq, J = 254.4, 36.6 Hz), 113.5, (t, J = 23.9 Hz); 19 F NMR (376 MHz, CDCl 3) δ (s, 3F), (t, J = 14.6 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F), (s, 2F); HRMS (ESI) m/z calcd for C 15H 13F 5N + [M+H] , found ((2,2,3,3,3-pentafluoropropyl)amino)benzonitrile Purified by flash column chromatography (petroleum ether / EtOAc = 15:1), white solid (44 mg, 70% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.49 (d, J = 8.8 Hz, 2H), 6.70 (d, J = 8.7 Hz, 2H), 4.44 (t, J = 7.0 Hz, 1H), (m, 2H); 13 C NMR (100 MHz, CDCl 3) δ 149.8, 133.8, 119.7, (qt, J = 286.1, 35.1 Hz), (tq, J = 254.7, 36.8 Hz), 112.9, 101.3, 43.2 (t, J = 24.2 Hz); 19 F NMR (376 MHz, CDCl 3) δ (s, 3F), (t, J = 14.7 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F), (s, 2F). (Consistent with previous reported values. 2 ) 4-methoxy-N-(2,2,3,3,3-pentafluoropropyl)aniline Purified by flash column chromatography (petroleum ether / EtOAc = 50:1), yellow liquid (39.1mg, 61% yield); 1 H NMR (400 MHz, CDCl 3) δ 6.80 (d, J = 8.9 Hz, 2H), 6.65 (d, J = 8.9 Hz, 2H), (m, 5H), 3.61 (s, 1H); 13 C NMR (100 MHz, CDCl 3) δ 153.3, 140.4, (qt, J = 286.0, 35.4 Hz ), 115.0, 114.8, (tq, J = 256.1, 36.5 Hz ), 55.7, 45.4 (t, J = 23.7 Hz); 19 F NMR (CDCl 3, 376 MHz, 25 ºC) δ (s, 3F), (t, J = 29.8 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (s, 3F), (s, 2F). (Consistent with previous reported values. 2 ) N-(2,2,3,3,4,4,4-heptafluorobutyl)-[1,1'-biphenyl]-4-amine Purified by flash column chromatography (petroleum ether, 100%), white solid (57 mg, 65% yield); 1 H NMR (400 MHz, CDCl 3) δ 7.53 (dd, J = 8.3, 1.3 Hz, 2H), 7.47 (d, J = 8.6 Hz, 2H), 7.40 (dd, J = 8.4, 7.0 Hz, 2H), 7.28 (t, J = 7.4 Hz, 1H), 6.77 (d, J = 8.6 Hz, 2H), (m, 3H); 13 C NMR (100 MHz,
13 S13 CDCl 3) δ 145.8, 140.9, 132.2, 128.7, 128.1, 126.5, 126.5, (qt, J = 286.3, 33.7 Hz ), (tt, J = 254.6, 30.5 Hz ), 113.5, (m), 44.2 (t, J = 23.5 Hz); 19 F NMR (376 MHz, CDCl 3) δ (t, J = 9.3 Hz, 3F), (dqd, J = 20.2, 9.1, 5.0 Hz, 2F), (d, J = 4.2 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (t, J = 9.3 Hz, 3F), (m, 2F), (m, 2F); HRMS (ESI) m/z calcd for C 16H 13F 7N + [M+H] , found ((2,2,3,3,4,4,4-heptafluorobutyl)amino)benzonitrile Purified by flash column chromatography (petroleum ether / EtOAc = 15:1), white solid (49.2 mg, 65% yield); 1 H NMR (CDCl 3, 400 MHz, 25 ºC) δ 7.49 (d, J = 8.8 Hz, 2H), 6.70 (d, J = 8.8 Hz, 2H), 4.40 (s, 1H), 3.92 (tdt, J = 15.2, 7.1, 1.3 Hz, 2H); 13 C NMR (CDCl 3, 100 MHz, 25 ºC) δ 149.9, 133.8, 119.7, (qt, J = 288.5, 33.8 Hz ), (tt, J = 256.7, 30.7 Hz ), 112.9, 109.5(m), 101.2, 43.2 (t, J = 23.7 Hz); 19 F NMR (CDCl 3, 376 MHz, 25 ºC) δ (t, J = 9.3 Hz, 3F), (dtt, J = 15.0, 9.2, 5.6 Hz, 2F), (d, J = 5.4 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (t, J = 9.4 Hz, 3F), (ttd, J = 9.4, 5.6, 2.7 Hz, 2F), (m, 2F); HRMS (ESI) m/z calcd for C 11H 6F 7N 2 [M-H] , found N-(2,2,3,3,4,4,4-heptafluorobutyl)-4-methoxyaniline Purified by flash column chromatography (petroleum ether / EtOAc = 50:1), yellow liquid (47.8mg, 62% yield); 1 H NMR (CDCl 3, 400 MHz, 25 ºC) δ 6.80 (d, J = 8.9 Hz, 2H), 6.66 (d, J = 8.9 Hz, 2H), 3.81 (dt, J = 15.2, 5.0 Hz, 2H), 3.75 (s, 3H), 3.62 (s, 1H); 13 C NMR (CDCl 3, 100 MHz, 25 ºC) δ 153.3, 140.4,117.7 (qt, J = 286.7, 34.5 Hz ), (tt, J = 255.2, 30.4 Hz ), 114.9, 114.8, (m), 55.7, 45.4 (t, J = 23.3 Hz); 19 F NMR (CDCl 3, 376 MHz, 25 ºC) δ (t, J = 9.5 Hz, 3F), (tddd, J = 15.2, 11.6, 7.4, 4.0 Hz, 2F), (d, J = 4.8 Hz, 2F); 19 F { 1 H} NMR (376 MHz, CDCl 3) δ (t, J = 9.3 Hz, 3F), (m, 2F), (d, J = 4.8 Hz, 2F). (Consistent with previous reported values. 3 )
14 S14 4. X ray structure of 3f and 11b Compound 3f (CCDC ) Compound 11b (CCDC ) NC 11b N H CF 2 CF 2 CF 3
15 S15 5. Refeence 1. Luo, H.; Wu, G.; Zhang, Y.; Wang, J., Silver(I)-Catalyzed N-Trifluoroethylation of Anilines and O-Trifluoroethylation of Amides with 2,2,2-Trifluorodiazoethane. Angew. Chem. Int. Ed. Engl. 2015, 54 (48), Brusoe, A. T.; Hartwig, J. F., Palladium-Catalyzed Arylation of Fluoroalkylamines. J. Am. Chem. Soc. 2015, 137 (26), Berzina, B.; Sokolovs, I.; Suna, E., Copper-Catalyzed para-selective C H Amination of Electron-Rich Arenes. ACS Catalysis 2015, 5 (11),
16 S16 6. NMR spectra of novel compounds 1 H NMR (CDCl 3, 400 MHz) of 3a 13 C NMR (CDCl 3, 100 MHz) of 3a
17 S17 19 F NMR (CDCl 3, 376 MHz) of 3a 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3a
18 S18 1 H NMR (CDCl 3, 400 MHz) of 3b 13 C NMR (CDCl 3, 100 MHz) of 3b
19 S19 19 F NMR (CDCl 3, 376 MHz) of 3b F 3 C N H 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3b F 3 C N H
20 1 H NMR (CDCl 3, 400 MHz) of 3c S20
21 S21 1 H NMR (CDCl 3, 400 MHz) of 3d 13 C NMR (CDCl 3, 100 MHz) of 3d Br F 3 C N H
22 S22 19 F NMR (CDCl 3, 376 MHz) of 3d Br F 3 C N H 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3d Br F 3 C N H
23 S23 1 H NMR (CDCl 3, 400 MHz) of 3e 13 C NMR (CDCl 3, 100 MHz) of 3e
24 S24 19 F NMR (CDCl 3, 376 MHz) of 3e 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3e
25 S25 1 H NMR (CDCl 3, 400 MHz) of 3f 13 C NMR (CDCl 3, 100 MHz) of 3f
26 S26 19 F NMR (CDCl 3, 376 MHz) of 3f 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3f
27 S27 1 H NMR (CDCl 3, 400 MHz) of 3g 13 C NMR (CDCl 3, 100 MHz) of 3g
28 S28 19 F NMR (CDCl 3, 376 MHz) of 3g 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3g
29 S29 1 H NMR (CDCl 3, 400 MHz) of 3h 13 C NMR (CDCl 3, 100 MHz) of 3h
30 S30 19 F NMR (CDCl 3, 376 MHz) of 3h 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3h
31 S31 1 H NMR (CDCl 3, 400 MHz) of 3i 13 C NMR (CDCl 3, 100 MHz) of 3i
32 S32 19 F NMR (CDCl 3, 376 MHz) of 3i 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3i
33 S33 1 H NMR (CDCl 3, 400 MHz) of 3j 13 C NMR (CDCl 3, 100 MHz) of 3j
34 S34 19 F NMR (CDCl 3, 376 MHz) of 3j 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3j
35 S35 1 H NMR (CDCl 3, 400 MHz) of 3l 13 C NMR (CDCl 3, 100 MHz) of 3l
36 S36 19 F NMR (CDCl 3, 376 MHz) of 3l 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 3l
37 S37 1 H NMR (CDCl 3, 400 MHz) of 8a 13 C NMR (CDCl 3, 100 MHz) of 8a
38 S38 19 F NMR (CDCl 3, 376 MHz) of 8a 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8a
39 S39 1 H NMR (CDCl 3, 400 MHz) of 8b 13 C NMR (CDCl 3, 100 MHz) of 8b
40 S40 19 F NMR (CDCl 3, 376 MHz) of 8b 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8b
41 S41 1 H NMR (CDCl 3, 400 MHz) of 8c 13 C NMR (CDCl 3, 100 MHz) of 8c
42 S42 19 F NMR (CDCl 3, 376 MHz) of 8c 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8c
43 S43 1 H NMR (CDCl 3, 400 MHz) of 8d 13 C NMR (CDCl 3, 100 MHz) of 8d
44 S44 19 F NMR (CDCl 3, 376 MHz) of 8d 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8d
45 S45 1 H NMR (CDCl 3, 400 MHz) of 8e 13 C NMR (CDCl 3, 100 MHz) of 8e
46 S46 19 F NMR (CDCl 3, 376 MHz) of 8e 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8e
47 S47 1 H NMR (CDCl 3, 400 MHz) of 8f 13 C NMR (CDCl 3, 100 MHz) of 8f
48 S48 19 F NMR (CDCl 3, 376 MHz) of 8f 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8f
49 S49 1 H NMR (CDCl 3, 400 MHz) of 8g 13 C NMR (CDCl 3, 100 MHz) of 8g
50 S50 19 F NMR (CDCl 3, 376 MHz) of 8g 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8g
51 S51 1 H NMR (CDCl 3, 400 MHz) of 8h 13 C NMR (CDCl 3, 100 MHz) of 8h
52 S52 19 F NMR (CDCl 3, 376 MHz) of 8h 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8h
53 S53 1 H NMR (CDCl 3, 400 MHz) of 8i 13 C NMR (CDCl 3, 100 MHz) of 8i H N CF 2 H O
54 S54 19 F NMR (CDCl 3, 376 MHz) of 8i 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8i
55 S55 1 H NMR (CDCl 3, 400 MHz) of 8j 13 C NMR (CDCl 3, 100 MHz) of 8j
56 S56 19 F NMR (CDCl 3, 376 MHz) of 8j 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8j
57 S57 1 H NMR (CDCl 3, 400 MHz) of 8l 13 C NMR (CDCl 3, 100 MHz) of 8l
58 S58 19 F NMR (CDCl 3, 376 MHz) of 8l 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 8l
59 S59 1 H NMR (CDCl 3, 400 MHz) of 11a 13 C NMR (CDCl 3, 100 MHz) of 11a
60 S60 19 F NMR (CDCl 3, 376 MHz) of 11a 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 11a
61 S61 1 H NMR (CDCl 3, 400 MHz) of 11f 13 C NMR (CDCl 3, 100 MHz) of 11f
62 S62 19 F NMR (CDCl 3, 376 MHz) of 11f 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 11f
63 S63 1 H NMR (CDCl 3, 400 MHz) of 11j 13 C NMR (CDCl 3, 100 MHz) of 11j
64 S64 19 F NMR (CDCl 3, 376 MHz) of 11j 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 11j
65 S65 1 H NMR (CDCl 3, 400 MHz) of 12a 13 C NMR (CDCl 3, 100 MHz) of 12a
66 S66 19 F NMR (CDCl 3, 376 MHz) of 12a 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 12a
67 S67 1 H NMR (CDCl 3, 400 MHz) of 12f 13 C NMR (CDCl 3, 100 MHz) of 12f
68 S68 19 F NMR (CDCl 3, 376 MHz) of 12f 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 12f
69 S69 1 H NMR (CDCl 3, 400 MHz) of 12j 13 C NMR (CDCl 3, 100 MHz) of 12j
70 S70 19 F NMR (CDCl 3, 376 MHz) of 12j 19 F { 1 H} NMR (CDCl 3, 376 MHz) of 12j
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