HRID1576420

反应详情

EQUATION

反应方程式

HRID 1576420 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 36.5 g of 3-bromo-3-(4'-fluoro-4-biphenylyl)-butyric acid ethyl ester [obtainable from 3-(4'-fluoro-4-biphenylyl)-3-hydroxybutyric acid ethyl ester and PBr3 ] and 7 g of hydrazine in 200 ml of dioxane is boiled for 2 hours and is evaporated. Working up gives 3-(4'-fluoro-4-biphenylyl)-3-methyl-pyrazolidin-5-one, m.p. 194°-196°.

WORKUP

后处理

  1. customis evaporated