Preparation of 4-benzylfuro[3,2-b]pyrroles is described and their reactions with selected dienophiles are discussed. Utilization of 4-acetylfuro[3,2-b]pyrroles for preparation of 4-substituted derivatives of furo[3,2-b]pyrrole and the synthesis of ethyl 4-(2- and 4-nitrobenzyl)furo[3,2-b]pyrrole-5-carboxylates for fusing to a 1,4-diazepine system is presented.
本文介绍了制备4-苄基呋喃[3,2-b]吡咯的方法,并讨论了它们与选择性双烯丙烃的反应。利用4-乙酰基呋喃[3,2-b]吡咯制备呋喃[3,2-b]吡咯的4-取代衍生物,以及合成乙酸乙酯基4-(2-和4-硝基苄基)呋喃[3,2-b]吡咯-5-羧酸酯,用于与1,4-二氮杂环系统融合。