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.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
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
关键词
原子经济
二芳基硒醚
氢氧化铯
炔硒醚
Catalysis
Atom-economy
Diaryl diselenide
Cesium hydroxide
Alkynyl selenide
