This paper deals with the preparation of ethyl benzofuro[3,2-b]pyrrole-2-carboxylate, its hydrolysis, N-alkylation, and reduction. Also the synthesis of new heterocyclic systems, benzofuro[3,2-b]pyrrole and 2H-dihydrobenzofuro[2',3':4,5]pyrrolo[1,2-d]-1,2,4-triazin-1-one, is described. The structure of 14 new substances was corroborated by IR, UV, 1H NMR, 13C NMR and electron impact mass spectra.
本文介绍了乙基苯并呋[3,2-b]吡咯-2-羧酸酯的制备、水解、N-烷基化和还原。同时描述了新的杂环系统苯并呋[3,2-b]吡咯和2H-二氢苯并呋[2',3':4,5]吡咯[1,2-d]-1,2,4-三嗪-1-酮的合成方法。通过红外、紫外、1H NMR、13C NMR和电子轰击质谱等手段确认了14种新物质的结构。