Montanari; Passerini, Bollettino Scientifico della Facolta di Chimica Industriale di Bologna, 1953, vol. 11, p. 42
作者:Montanari、Passerini
DOI:——
日期:——
US5990146A
申请人:——
公开号:US5990146A
公开(公告)日:1999-11-23
US6218388B1
申请人:——
公开号:US6218388B1
公开(公告)日:2001-04-17
US6207670B1
申请人:——
公开号:US6207670B1
公开(公告)日:2001-03-27
A mild, one-pot synthesis of disubstituted benzimidazoles from 2-nitroanilines
作者:Keith R. Hornberger、George M. Adjabeng、Hamilton D. Dickson、Ronda G. Davis-Ward
DOI:10.1016/j.tetlet.2006.05.111
日期:2006.7
A one-potsynthesis of disubstituted benzimidazolesfrom 2-nitroanilines is described. Hydrogenation of N-substituted 2-nitroanilines with palladium on carbon as catalyst in the presence of trimethyl orthoformate and catalytic pyridinium p-toluenesulfonate (PPTS) at room temperature provided good to excellent yields of the corresponding disubstituted benzimidazoles.