原子经济反应:氢氧化铯催化下二硒醚与端炔反应合成炔硒醚  

Atom-economic Reaction: Diselenides Reacted with Terminal Alkynes to Synthesize Alkynyl Selenides Catalyzed by Cesium Hydroxy and Promoted by Air

作　　者：许新华[1] 卢锐亮[1] 张秋林[1] 陈雄[1] 李言杰[1] 张青丽[1] 

机构地区：[1]湖南大学化学化工学院,长沙410082

出　　处：《高等学校化学学报》2005年第2期267-269,共3页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 3 72 0 2 0 )资助

摘　　要：Under N\-2 atmosphere and at room temperature, the reaction of diaryl diselenid（1\^0 mmol） with terminal alkynes（2\^2 mmol） catalyzed by cesium hydroxy gave exclusively （Z）-1,2-bis（arylseleno）-1-alkenes, but under air and at -100 ℃, the reaction gave alkyne selenides in 83%95% yields based on the selenium atoms. The method for the preparation of alkyne selenides has advantages of available starting materials and simple procedures. The reaction mechanism was proposed.Under N\-2 atmosphere and at room temperature, the reaction of diaryl diselenid(1\^0 mmol) with terminal alkynes(2\^2 mmol) catalyzed by cesium hydroxy gave exclusively (Z)-1,2-bis(arylseleno)-1-alkenes, but under air and at -10_0 ℃, the reaction gave alkyne selenides in 83%_95% yields based on the selenium atoms. The method for the preparation of alkyne selenides has advantages of available starting materials and simple procedures. The reaction mechanism was proposed.

关 键 词：原子经济 二芳基硒醚 氢氧化铯 炔硒醚 

分 类 号：O627.6[理学—有机化学]