反应详情

A suspension of 5-cyano-2,3-dihydro-3,3-dimethylbenzofuran-2-one (3.7 g), prepared as in Example 3, in diethyl ether (50 ml) was treated with a solution of dimethylamine in ethanol (8.6 ml of a 20.8% solution) portionwise with stirring at room temperature. The mixture was stirred for two hours, and the product was isolated by filtration, yield 4 g, mp 146°-148° C.

1. stirringThe mixture was stirred for two hours
2. customthe product was isolated by filtration, yield 4 g, mp 146°-148° C.