HRID277010

反应详情

EQUATION

反应方程式

HRID 277010 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

105 g (0.34 mol) Furan-2-carboxylic acid (1-amino-2-benzenesulfonyl-ethylidene)-hydrazide were heated at 200° C. for 20 minutes. The molten mass was then cooled, dissolved in 250 ml hot ethanol and stirred overnight at room temperature. The precipitated crystals were filtered off and dried to yield 65.7 g (66%) 3-benzenesulfonylmethyl-5-furan-2-yl-1H-[1,2,4]triazole as white crystals with mp. 185-186° C., MS m/e (%): 290 (M+H+, 100).

WORKUP

后处理

  1. temperatureThe molten mass was then cooled
  2. filtrationThe precipitated crystals were filtered off
  3. customdried