反应详情

0.152 g (0.5 millimol) of bis-(acetylacetonato)palladium(II), 10.53 g (50 millimols) of 3,4-dichlorobenzoyl chloride, 7.5 g (75 millimols) of ethyl acrylate and 17.65 g (50 millimols) of tri-n-octylamine in 100 ml of diethyl oxalate are stirred for 2.5 hours at 120° C. The crude product is distilled in vacuo and then recrystallised from methanol. 1.4 g (11% of theory) of ethyl 3,4-dichlorocinnamate are obtained; melting point 56.0° C.

1. distillationThe crude product is distilled in vacuo
2. customrecrystallised from methanol