Synthesis of Highly Twisted and Fully π-Conjugated Porphyrinic Oligomers
Journal of the American Chemical Society2014Vol. 137(1), pp. 142–145
Citations Over TimeTop 10% of 2014 papers
Satoru Ito, Satoru Hiroto, Sangsu Lee, Minjung Son, Ichiro Hisaki, Takuya Yoshida, Dongho Kim, Nagao Kobayashi, Hiroshi Shinokubo
Abstract
Highly twisted π-conjugated molecules have been attractive but challenging targets. We report here an efficient synthesis of highly twisted diporphyrins with 126° and 136° twist angles that involves an oxidative fusion reaction of planar aminoporphyrin precursors at room temperature. Repeated amination-oxidative fusion sequences provide a unidirectionally twisted tetramer. The twisting angle of the tetramer is 298°.
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