Dendritic and hyperbranched polyphenylenes via a simple Diels-Alder route

被引：127
作者：
Morgenroth, F [1 ]
Mullen, K [1 ]
机构：
[1] MAX PLANCK INST POLYMER RES,D-55128 MAINZ,GERMANY
来源：
TETRAHEDRON | 1997年 / 53卷 / 45期
关键词：
D O I：
10.1016/S0040-4020(97)00967-8
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A Diels-Alder route to dendritic and hyperbranched polyphenylenes, based on hexa(penta)phenylbenzene units, is described. Using ethynyl-, propynyl- and phenylethynyl-substituted tetraphenylcyclopentadienones 1c-e, hyperbranched polymers with molecular weights M-w as high as 107,000 g mol(-1) are obtained. The new dendritic polyphenylene 5c is synthesized starting from 3,3',5,5'-tetraethynylbiphenyl (2c) via a repetitive Diels-Alder-deprotection sequence, employing tetraphenylcyclopentadienones 1a and 1b. (C) 1997 Elsevier Science Ltd.
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收藏
页码：15349 / 15366
页数：18
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