反应详情

Prepared analogously to Example 5(b) from 3-methyl- 5,6,7,8-tetrahydro-cumarin-5-one and methanolic methylamine solution a ambient temperature. After evaporation of the methanolic ammonia the residue is recrystallised from water with the addition of charcoal.

1. customAfter evaporation of the methanolic ammonia the residue
2. customis recrystallised from water with the addition of charcoal