反应详情

Starting from 2.6 g (14 mmol) of 5-amino-2-cyanoethyl-2,3-dihydrobenzofuran, 1.45 ml (15.2 mmol) of ethyl chloroformate and 1.7 g (21 mmol) of sodium hydrogencarbonate treated under the conditions described in step 6 of Example 1, 3.2 g of product were obtained.

1. additiontreated under the conditions