Acta Chimica Sinica ›› 1988, Vol. 46 ›› Issue (6): 608-611. Previous Articles     Next Articles

Original Articles

二溴卡宾产生方法的改进

许临晓;陶凤岗;于同隐   

  1. 复旦大学化学系
  • 发布日期:1988-06-15

An improved method for the generation of dibromocarbene

XU LINXIAO;TAO FENGGANG;YU TONGYIN   

  • Published:1988-06-15

An improved method for the generation of dibromocarbene is developed which combines ultrasonication with phase-transfer catalysis in the reaction of bromoform with solid sodium hydroxide. High yields of 1,1-dibromocyclopropane derivatives can be obtained in the presence of alkenes by this method in only 20-30 min and with more convenient puritication process.

Key words: METHANE P, RADIATION, PHASE TRANSFER CATALYSIS, CYCLOPROPANE P, BROMOHYDROCARBON, CARBENE, ALKENE P, ADDITION REACTION, ULTRASONIC PROCESSING, SODIUM HYDROXIDE

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