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Unprecedented ring cleavage in the reaction of 1‐methyl‐3‐phenacyl benzimidazolium ylide with diethyl azodicarboxylate

 

作者: José Sepúlveda‐Arques,   Eva Romero Arbiol,   M. Eugenia González Rosende,   Matias Lápez‐Rodriguez,   Ricardo Pérez Afonso,  

 

期刊: Recueil des Travaux Chimiques des Pays‐Bas  （WILEY Available online 1990）
卷期: Volume 109, issue 7‐8  

页码: 410-412

 

ISSN:0165-0513

 

年代: 1990

 

DOI:10.1002/recl.19901090703

 

出版商: WILEY‐VCH Verlag

 

数据来源: WILEY

 

摘要:

AbstractThe reaction with diethyl azodicarboxylate (DEAZD) of different cycloimmonium ylides derived from pyridinium, quinolinium, isoquinolinium and 1‐methylbenzimidazolium bromides (3, 4, 5 and 6) yielded 3‐substituted tetraazapentenes (2). In the special case of 1‐methyl‐3‐phenacyl‐benzimidazolium bromide (6a), the ring cleavage compoundN‐[1‐[(ethoxycarbonyl)amino]‐2‐oxo‐2‐phenylethylidene]‐N‐formyl‐N‐methyl‐1,2‐benzenediamine (7a) was obtained. Its structure was e

 

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