反应详情

Following the procedure as described in step A of Preparation 2, making variations as required to replace 4-fluoroaniline with 4-(trifluoromethyl)benzylamine to react with dimethoxyacetaldehyde followed by the imine reduction with sodium triacetoxyborohydride, 2,2-dimethoxy-N-(4-(trifluoromethyl)benzyl)ethanamine was obtained in 67% yield: 1H NMR (300 MHz, CDCl3) δ 7.52 (d, J=8.1 Hz, 2H), 7.39 (d, J=8.1 Hz, 2H), 4.43 (t, J=2.7 Hz, 1H), 3.81 (s, 2H), 3.38 (s, 6H), 2.67 (dd, J=2.7, 2.5 Hz, 2H); MS (ES+) m/z 264.3 (M+1).

1. customas described in step A of Preparation 2