作者:Tamotsu Takahashi、Shi Li、Wenying Huang、Fanzhi Kong、Kiyohiko Nakajima、Baojian Shen、Takahiro Ohe、Ken-ichiro Kanno
DOI:10.1021/jo060923y
日期:2006.10.1
prepared by a homologation method. The homologation method involved the conversion of phthalic acid ester derivatives to two ring extended phthalic acid ester derivatives via diynes and metallacyclopentadienes using transition metals, such as Zr and Rh. For the formation of pentacenes of Type III and Type IV and naphthacenes of Type VII, trimethylsilyl-substituted diynes were used for zirconocene-mediated
多取代戊烯,例如1,2,3,4,6,8,9,10,11,13-十取代戊烯(I型),1,2,3,4,6,13六取代戊烯(I型) II),1,2,3,4-四取代戊烯(III型)和2,3-二取代戊烯(IV型),1,2,3,4,6,11-六取代萘并烷(V型)1通过同源法制备1,2,3,4-四取代萘并(2),2,3-二取代萘并(7)。同源方法涉及使用过渡金属,例如Zr和Rh,通过二炔和金属环戊二烯将邻苯二甲酸酯衍生物转化为两个扩环的邻苯二甲酸酯衍生物。为了形成III型和IV型的并五苯以及VII型的萘并,将三甲基甲硅烷基取代的二炔用于茂茂锆介导的环化反应。在环化之后消除三甲基甲硅烷基基团在戊烯或萘并蒽上提供未取代的位置。1,4,6,8,9,10,11,13-八乙基-2,3-双(甲氧基羰基)并五苯的结构(通过X射线分析确定9a)和8,9,10,11-四乙基-2,3-双(甲氧基羰基)-1,4,6,13-