Diisopropylethylamine → HCID 86675167, compound

Participants

Reaction Steps

To a stirred solution of (E)-5-(3-(3,5-dichloro-4-fluorophenyl)-4,4,4-trifluorobut-1-enyl)indoline-1-amine (0.1 g, 0.247 mmol) in DCM (10.0 ml) was added 3,3,3-trifluoropropanoic acid (0.038 g, 0.297 mmol), PyBOP (0.192 g, 0.370 mmol) and DIEA (0.047 g, 0.370 mmol) and the reaction was stirred at RT for 18 h. The reaction mixture was diluted with DCM, and the separated DCM layer dried over anhydrous Na2SO4 and concentrated under reduced pressure to afford the crude compound. The crude compound was purified by column chromatography (SiO2, 100-200 mesh; 20-25% ethyl acetate/petroleum ether) to afford the title compound as a light brown gummy material (0.12 g, 33%): 1H NMR (400 MHz, CDCl3) δ 7.32, (d, J=6.0 Hz, 2H) 7.28 (m, 1H), 7.20 (d, J=8.0, 1H), 7.14 (d, J=8.8, 1H), 6.70 (d, J=8.0 Hz, 1H), 6.60 (m, 2H), 4.15 (m, 1H), 3.85 (m, 1H), 3.65 (m, 1H), 3.46 (m, 2H), 3.19 (m, 2H); ESIMS m/z 514.86 ([M+H]+); IR (thin film) 3428, 1112, 857 cm−1.

Provenance & Evidence