Synthesis of Carbazole-Containing Porphyrinoids by a Multiple Annulation Strategy: A Core-Modified and π-Expanded Porphyrin
作者:Chihiro Maeda、Tomoki Yoneda、Naoki Aratani、Min-Chul Yoon、Jong Min Lim、Dongho Kim、Naoki Yoshioka、Atsuhiro Osuka
DOI:10.1002/anie.201101864
日期:2011.6.14
Going around in circles: The copper(I)‐mediated annulation of a doubly 1,3‐butadiyne‐bridged carbazole dimer with amines or Na2S provides isophlorins containing carbazole or thiophene‐carbazole moieties, respectively (see scheme). Oxidization of the thiophene‐containing isophlorin with MnO2 gives the corresponding porphyrin, which displays distinct aromaticity and remarkably intensified and red‐shifted