反应详情

A solution of 206a (2.0 g, 7.0 mmol) in ethanol (30 mL) was added hydrazine hydrate (1 mL, 21 mmol) and the mixture was stirred at room temperature for 3 hours. The mixture was evaporated and the residue was purified by silica-gel eluting with 10:1 methylene chloride/methanol to give 206b as a white solid (0.8 g, 80%). MS: (M+H)+ 157.

1. customThe mixture was evaporated
2. customthe residue was purified by silica-gel
3. washeluting with 10:1 methylene chloride/methanol