Pyrrolo(1',2': 1,2)pyrazino(6,5-c)carbazoles. Synthese et Etude des spectres de resonnance magnetique nucleaire.
作者:JEAN-CHARLES LANCELOT、JEAN-MARIE GAZENGEL、SYLVAIN RAULT、MAX ROBBA
DOI:10.1248/cpb.30.1674
日期:——
Synthesis of pyrrolo [1', 2' : 1, 2] pyrazino [6, 5-c] carbazole derivatives is described starting from 3-amino-4, 6-dinitro-9-ethylcarbazole (1). The pyrrole ring is obtained by reaction with 2, 5-dimethoxytetrahydrofuran. Cyclization of the pyrazine ring is achieved after reduction of the nitro grouping by intramolecular cyclization of 4, 6-diamino-9-ethyl-3-(1-pyrrolyl) carbazole derivatives. 1H nuclear magnetic resonance spectra are studied.
由3-氨基-4,6-二硝基-9-乙基咔唑(1)开始,合成了吡咯并[1',2':1,2]吡嗪并[6,5-c]咔唑衍生物。吡咯环是通过与2,5-二甲氧基四氢呋喃反应获得的。通过对4,6-二氨基-9-乙基-3-(1-吡咯基)咔唑衍生物进行分子内环化,还原硝基团后实现了吡嗪环的环化。对1H核磁共振谱进行了研究。