反应详情

To a being cooled solution of DL-α-amino-ε-caprolactam (0.83 g) and triethylamine (1.1 ml) in dichloromethane (12 ml), a solution of (5-methoxybenzofuran-2-yl)carbonyl chloride (1.37 g) in dichloromethane (5 ml) was added dropwise below 10° C. After being stirred for 3 hours at ambient temperature, the appeared precipitates was collected by filtration to give DL-α-(5-methoxybenzofuran-2-yl)carbonylamino-ε-caprolactam (1.20 g).

1. customthe appeared precipitates
2. filtrationwas collected by filtration