A pyrrole ethyl ester with a fused bis(thiadiazolo)benzo unit was prepared by reacting 4-nitrobenzo[1,2-c:3,4-c’]bis(1,2,5)thiadiazole with ethyl isocyanoacetate in the presence of a non-nucleophilic base. Cleavage of the ester moiety, followed by reaction with a chloromethylpyrrole in refluxing pyridine, afforded a tripyrrane and subsequent acid-catalyzed condensation with pyrrole or indene dialdehydes
通过使4-
硝基苯并[1,2- c:3,4- c' ]双(1,2,5)
噻二唑与
异氰基乙酸乙酯反应制得具有稠合双(
噻二唑)苯并单元的
吡咯乙酯。非亲核碱基。裂解酯部分,然后与
氯甲基
吡咯在回流的
吡啶中反应,得到三
吡喃,随后与
吡咯或
茚二醛的酸催化缩合得到结合了稠合的电子缺陷的杂环单元的
卟啉类化合物。