双稠合四硫富瓦烯衍生物的制备及取代基对合成的影响  

Syntheses of Bi-fused Tetrathiafulvalene Derivatives and Effects of Substituted Groups on the Coupling Reactions

作　　者：修远见[1] 仲剑初[1] 张述伟[1] 丁一[1] 王洪志[1] 宁桂玲[1] 

机构地区：[1]大连理工大学化工学院化学工艺系,辽宁大连116012

出　　处：《化学世界》2005年第5期289-292,318,共5页Chemical World

基　　金：教育部留学回国人员科研启动基金(2002);辽宁省博士启动基金(No.20031077)

摘　　要：扩展TTF衍生物的π共轭体系,可以增进分子导体中分子间的S…S相互作用,改善分子导电性。基于这个目的,以二硫化碳、二甲基甲酰胺为起始原料,合成了二种双稠合的四硫富瓦烯衍生物2 (4′,5′二甲硫基1′,3′二硫代环戊烯2′叉) 5 (4′,5′二腈乙硫基1′,3′二硫代环戊烯2′叉) 1,3,4,6 四硫并环戊烯和2,5 二(4′,5′二甲硫基1′,3′二硫代环戊烯2′叉) 1,3,4,6 四硫并环戊烯。这两种化合物具有更为伸展的π共轭体系,因此有可能成为优良的电子给体。中间物及锄物经IR和元素分析进行了结构鉴定。同时讨论了取代基性质对双稠合四硫富瓦烯衍生物的合成收率的影响。The bi-fused tetrathiafulvalene(TTF) derivatives with extended π-conjugated systems can enhance S…S interactions between the molecules of molecular conductors and improve their conductivity. For this purpose, by using carbon disulfide, trimethylphosphite and etc. as raw materials two bi-fused TTF derivatives, 2-(4′,5′-bis(methylthio)-1′,3′-dithiol-2′-ylidene)-5-(4′,5′-bis(cyanoethylsulfenyl)-1′,3′-dithiol-2′-ylidene)-1,3,4,6-tetrathiapentalene and 2,5-bis(4′,5′-bis(methylthio)-1′,3′-dithiol-2′-ylidene)-1,3,4,6-tetrathiapentalene, were synthesized by Wittig cross-coupling reaction. The products including some intermediates were analyzed by IR and elmental analyses. The effects of substituted group on the coupling reactions were also discussed.

关 键 词：四硫富瓦烯 偶合 给体 导电化合物 

分 类 号：O621[理学—有机化学] O623[理学—化学]