反应详情

Benzhydrylamine (48.8 g, 0.266 mol) was added drop wise to a solution of glyoxylic acid methyl ester methyl hemiacetal (32 g, 0.266 mol) in methylene chloride (300 mL). The mixture was stirred for 3 hours at room temperature and then dried over magnesium sulfate. The mixture was filtered and the solvent was removed from the filtrate under reduced pressure to yield a viscous oil. Trituration with diisopropyl ether/heptane gave methyl 2-(benzhydrylimino)acetate (53.4 g, 79%) as an off white solid. 1H-NMR (400 MHz, CDCl3): δ=3.82 (s, 3H), 7.17-7.31 (m, 10H), 7.73 (s, 1H).

1. dry with materialdried over magnesium sulfate
2. filtrationThe mixture was filtered
3. customthe solvent was removed from the filtrate under reduced pressure
4. customto yield a viscous oil