反应详情

A solution of potassium hydroxide (1.60 g, 29 mmol) in ethanol (30 mL) was added to a warmed (75° C.) solution of diphenylacetone (12.0 g, 57 mmol) and 4,4′-dibromobenzil (21.0 g, 57 mmol) in ethanol (130 mL). The resulting dark brown solution was poured into methanol, and the dark precipitate filtered to give (9) (26.0 g, 84%).

1. filtrationthe dark precipitate filtered