金属苯炔的合成与化学性质  

Synthesis and Chemical Properties of Metallabenzynes

作　　者：陈江溪[1] 何国梅[1] 贾国成[1] 

机构地区：[1]香港科技大学化学系

出　　处：《有机化学》2013年第4期792-798,共7页Chinese Journal of Organic Chemistry

基　　金：香港研究资助局基金(Nos.HKUST 602611;601812)资助项目~~

摘　　要：金属苯炔是一类新颖的杂环芳香化合物.它们可看成是苯炔分子中的一个碳原子被等瓣的过渡金属基团取代而衍生出来的六元杂环化合物.近年来,金属苯炔的化学引起了人们的兴趣和关注.一系列含锇和铼的金属苯炔已被成功地合成和鉴定.这些金属苯炔不仅具有有机化合物的芳香性,还具有金属有机化合物的属性.它们既可以发生芳香体系的经典反应(如亲电取代反应),也可以发生金属有机化合物的反应(如卡宾化合物的形成).Metallabenzynes are an interesting class of metallaraomatics. They can be regarded as transition-metal analogs of benzyne in which a C atom is replaced by an isolobal transition metal fragment. The chemistry of this class of compounds has received much recent attention. A series of metallabenzynes containing osmium and rhenium have been isolated. It has also been demonstrated both experimentally and theoretically that metallabenzynes can have properties of both aromatic organic compounds and organometallic compounds. For example, metallabenzynes, like organic aromatic compounds, could undergo electrophilic substitution reactions to give new metallabenzynes; react with nucleophiles to generate metallabenzene species through addition of nucleophiles at the carbyne carbons of metaUabenzynes and undergo reductive elimination to give carbene complexes.

关 键 词：芳香性 金属有机化合物 金属苯炔 金属苯 

分 类 号：O627[理学—有机化学]