An efficient synthesis of conjugation-expanded carba- and azuliporphyrins using a bicyclo[2.2.2]octadiene-fused tripyrrane
作者:Tetsuo Okujima、Naoki Komobuchi、Yusuke Shimizu、Hidemitsu Uno、Noboru Ono
DOI:10.1016/j.tetlet.2004.05.041
日期:2004.7
A bicyclo[2.2.2]octadiene-fused tripyrrane was synthesized as a first versatile reagent for the preparation of pi-expanded heteroporphyrins. The reaction of the tripyrrane with 1,3-diformylindene and azulene-1,3-dicarbaldehyde afforded the corresponding heteroporphyrins. which were easily converted into tetrabenzocarbaporphyrin and tribenzoazuliporphyrin by retro Diels-Alder reaction. (C) 2004 Elsevier Ltd. All rights reserved.