Metal-free synthesis of benzimidazo[2,1-a]ellipticines via tandem inter and intramolecular cyclization
作者:T. Krishna Chaitanya、K.S. Prakash、Rajagopal Nagarajan
DOI:10.1016/j.tet.2011.06.076
日期:2011.9
Synthesis of the new benzimidazo[2,1-a]ellipticine derivatives via tandem inter and intramolecular, 5-endo,6-endo cyclization of various 9-ethyl-2-(alkynyl)carbazole-3-carbaldehydes with different 1,2-aryldiamines is reported under metal free condition in good yields.
新的苯并咪唑并[2,1-的合成一个]玫瑰树碱衍生物经由串联间和分子内,5-内,6-内各种9-乙基-2-(炔基)咔唑-3- carbaldehydes具有不同的环化1,2-据报道,在无金属条件下芳基二胺的收率很高。