反应详情

Combine 2-bromo-4-isopropyl aniline (7.5 g, 35 mmol) and copper (I) cyanide (3.76 g, 42 mmol) in NMP (30.0 mL) and heat at 200° C. for 2 hours. Cool to ambient temperature and dilute with water (300 mL). Extract with ethyl acetate to give 4.58 g of the crude product. Silica gel chromatography, eluting with methylene chloride, gives 3.20 g of the title compound as a red oil: mass spectrum (ion spray): m/z=161 (M+1); 1H NMR (300 MHz, DMSO-d6): δ 7.21 (m, 2H), 6.73 (d, 1H), 5.79 (s, 2H), 2.73 (quintet, 1H), 1.12 (d, 6H).

1. extractionExtract with ethyl acetate
2. customto give 4.58 g of the crude product
3. washSilica gel chromatography, eluting with methylene chloride