Synthesis of symmetric and non-symmetric indolo[2,3-c]carbazole derivatives: preparation of indolo[2,3-c]pyrrolo[3,4-a]carbazoles
作者:Eric Desarbre、Jan Bergman
DOI:10.1039/a802852d
日期:——
Symmetric and non-symmetric indolo[2,3-c]carbazoles have been prepared from 3,3′-biindolyls 9a–d by two strategies; step by step, by thermal electrocyclic reaction, or directly. Indolo[2,3-c]pyrrolo[3,4-a]carbazoles 28aa–db, a new class of indolopyrrolocarbazoles, have been obtained in a one step reaction from readily available precursors.
对称和非对称的吲哚[2,3-c]卡巴唑已通过两种策略从3,3′-二吲哚基化合物9a–d中制备而成;一种是逐步进行的热电环反应,另一种是直接法。吲哚[2,3-c]吡咯[3,4-a]卡巴唑28aa–db,作为一种新类的吲哚吡咯卡巴唑,已通过从易得前体的一步反应中获得。