反应详情

38.4 g (0.149 mol) of ethyl 8-amino-7-chloro-2,3-dihydro-1,4-benzodioxine-5-carboxylate suspended in 150 ml of ethanol are introduced into a 1 l reactor, 149 g (2.98 mol) of hydrazine hydrate are added, over 15 min, and the mixture is refluxed for 1 h.

1. additionare introduced into a 1 l reactor
2. temperaturethe mixture is refluxed for 1 h.