HRID1074862

反应详情

EQUATION

反应方程式

HRID 1074862 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 10.1 g (0.05 mol) 5-chloro-3-methoxycarbonyl-2-methyl-4-pyranone, 8.5 g 2,4-dimethyl-5-nitroaniline and 0.1 g p-toluenesulfonic acid monohydrate in 100 ml of toluene are refluxed for 8 h in a water separator apparatus. The mixture is allowed to cool and the precipitating product is filtered off, washed with a small amount of ethylacetate/petrolether and dried. Yield: 15.0 g (85.5%) 1-(3'-nitro-4',6'-dimethylphenyl)-5-chloro-3-methoxycarbonyl-2-methyl-4-pyridone, mp. 266° C.

WORKUP

后处理

  1. temperatureto cool
  2. filtrationthe precipitating product is filtered off
  3. washwashed with a small amount of ethylacetate/petrolether
  4. customdried