HRID394821

反应详情

EQUATION

反应方程式

HRID 394821 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

24.0 g (75.4 mmoles) of ethyl 3-amino-4-(2-(phthalimido)ethoxy)crotonate and 18.9 g (79.2 mmoles) of methyl 2-(2-chlorobenzylidene)acetoacetate in 64 ml of ethanol were heated under reflux for 20 hours. The reaction mixture was diluted with 56 ml of ethanol and was cooled to crystallise the product. 14.2 g (yield 70%) of 4-(2-chlorophenyl)-3-ethoxycarbonyl-5-methoxycarbonyl-6-methyl-2-(2-phthalimidoethoxy)methyl-1,4-dihydropyridine were obtained.

WORKUP

后处理

  1. temperatureunder reflux for 20 hours
  2. temperaturewas cooled
  3. customto crystallise the product