1,2,4-三苯基环戊二烯的合成及其烷基化反应  

Syntheses of 1, 2, 4-Triphenyl Cyclopentadien and Their Alkylation reaction

作　　者：张良辅[1] 郭胜利[1] 王树梅[1] 李广年[1] 

机构地区：[1]中国科学院成都有机化学研究所

出　　处：《有机化学》1993年第4期383-388,共6页Chinese Journal of Organic Chemistry

基　　金：国家自然科学基金

摘　　要：环戊二烯基阴离子作为一个η~5-六电子配体,在金属有机化学和配位化学,特别是在过渡金属和稀土金属有机化学里已被广泛使用,因此,研究环戊二烯衍生物。In this paper, we determined the molecular structure of the dehydration product of pinacolunder acidic condition. The results show that the dehydration reaction of pinacol gains an advantageover rearrangment reaction. The alkylation reaction of the formed substituted cyclopentadiene occureonly at fifth position carbon atom containing active hydrogen, whereas under harsh conditions, thealkylation occurs also at third position carbon atom. The reaction mechanismes of the dehydration andalkylation are discussed.

关 键 词：三苯基 环戊二烯 合成 烷基化 

分 类 号：O624.12[理学—有机化学]