HRID1108516

反应详情

EQUATION

反应方程式

HRID 1108516 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

0.5 mol of a 25% strength by weight 3-bis(trimethylsilyl)aminophenyl-magnesium chloride/THF solution is added dropwise in the course of 30 minutes to a boiling solution of 0.5 mol of 1,4-bromochlorobenzene and 0.0025 g of Pd(dppf)Cl2 *CH2Cl2 in 100 ml THF. After stirring under reflux for four hours, the mixture is hydrolyzed with dilute sulfuric acid (conversion 99%, selectivity 97%). The organic phase is freed from the solvent by distillation. The crude 4-chloro-3'-bis(trimethylsilyl)aminobiphenyl thus obtained is recrystallized from isopropanol.

WORKUP

后处理

  1. temperatureunder reflux for four hours
  2. distillationThe organic phase is freed from the solvent by distillation