HRID1108516
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
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
- temperatureunder reflux for four hours
- distillationThe organic phase is freed from the solvent by distillation