Fulvene Dialdehyde Strategy for <i>adj</i>-Dicarbaporphyrinoid Synthesis: Preparation of a 22-Carbaazuliporphyrin
作者:Timothy D. Lash、Denise A. Colby、Aparna S. Idate、Randall N. Davis
DOI:10.1021/ja076414a
日期:2007.11.1
Aromatic aldehydes, including azulenecarbaldehydes, have been shown to react with an indene enamine derivative in the presence of dibutylboron triflate to give stable fulvene aldehydes. 1,3-Azulenedicarbaldehyde afforded a fulvene dialdehyde under these conditions, and this reacted with a dipyrrylmethane to give a 22-carbaazuliporphyrin. This adj-dicarbaporphyrinoid showed significant diatropic character