Highly Functionalized, Angularly Anellated Aromatic Compounds from Dendralenes
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