HRID1493305

反应详情

EQUATION

反应方程式

HRID 1493305 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 2-chloromethyl-3,5-dicarboethoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine (1 g) and tetrabutylammonium hydrogen sulfide (0.7 g) in methylene chloride (10 ml) is stirred at -10° C., for 20 minutes, neutralized with a drop of AcOH, evaporated under vacuum and the residue recrystallized from Et2O to give 0.7 g of 2-mercaptomethyl-3,5-dicarboetoxy-4-(m-nitrophenyl)-6-methyl-1,4-dihydropyridine, m.p. 145°-147° C.

WORKUP

后处理

  1. customevaporated under vacuum
  2. customthe residue recrystallized from Et2O