作者:Henning Hopf、Şeref Yildizhan
DOI:10.1002/ejoc.201001536
日期:2011.4
[3]Dendralene (2) has been converted into the benz[a]anthracene tetraester 13 in a protocol involving diene-transmissive Diels–Alder addition of dimethyl acetylenedicarboxylate to 2 followed by a sequence of reduction–addition–aromatization reactions. Likewise, the next higher vinylog [4]dendralene (19) provided the phenanthrene hexaester 21. An attempt to prepare the double o-xylylene intermediate
[3] 树枝烯 (2) 已转化为苯并 [a] 蒽四酯 13,该方案涉及二烯传输的 Diels-Alder 将乙炔二羧酸二甲酯加成到 2,然后进行一系列还原-加成-芳构化反应。同样,下一个更高的乙烯基 [4] 枝烯 (19) 提供了菲六酯 21。制备双邻二甲苯中间体 17 的尝试失败了。