炔基硒醚的制备和(E)-α-溴代烯基硒醚的立体选择合成  

Preparation of Alkynyl Selenides and the Stereoselective Synthesisof (E)-α-Bromovinylselenides

作　　者：彭春耘[1] 章荣立[1] 黄佳娣 蔡明中[1] 

机构地区：[1]江西师范大学化学学院,江西南昌330027

出　　处：《江西师范大学学报（自然科学版）》2002年第4期352-355,共4页Journal of Jiangxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助课题(20062002)

摘　　要：乙基溴化镁与末端炔烃反应生成炔基Grignard试剂,后者与芳硒基溴作用较高产率地制得了炔基硒醚.通过炔基硒醚与溴化氢在苯中的加成反应,立体选择地合成了(E)-α-溴代烯基硒醚.The reaction of ethynylmagnesium bromides with terminal alkynes afforded alkynyl Grignard reagents,which were reacted with arylselanyl bromides to give alkynyl selenides in good yields.Alkynyl selenides underwent addition with hydrogen bromide in benzene to give stereoselectively (E)-α-bromovinylselenides.

关 键 词：制备 炔基硒醚 立体选择合成 (E)-α-溴代烯基硒醚 乙基溴化镁 溴化氢 有机合成试剂 

分 类 号：O627.61[理学—有机化学]