Synthesis of 2-Substituted Benzimidazoles and 1,5-Disubstituted Benzodiazepines on Alumina and Zirconia Catalysts
作者:M. REKHA、A. HAMZA、B.R. VENUGOPAL、N. NAGARAJU
DOI:10.1016/s1872-2067(11)60338-0
日期:2012.2
In this study, alumina, zirconia, manganese oxide/alumina, and manganese oxide/zirconia have been investigated for their catalytic activity in the condensation reaction between o-phenylenediamine and an aldehyde or a ketone to synthesise 2-substituted benzimidazoles and 1,5-disubstituted benzodiazepines respectively. Surface area, surface acidity, and morphology of the catalysts have been analysed
Substituted benzimidazoles as angiotensin II antagonists
申请人:Merck & Co., Inc.
公开号:EP0400835A1
公开(公告)日:1990-12-05
There are disclosed new substituted benzimidazole compounds and derivatives thereof which are useful as angiotensin II antagonists. These compounds have the general formula:
Abstract Simple, economical, and environmentally friendly method to synthesize 2-alkylbenzimidazoles was developed by modifying the conventional method between o-phenylenediamine and aldehyde.
摘要 通过改进邻苯二胺与醛的常规合成方法,开发了一种简单、经济、环保的合成2-烷基苯并咪唑的方法。
Catalyst free approach to benzimidazoles using air as the oxidant at room temperature
作者:Chun Zhang、Liangren Zhang、Ning Jiao
DOI:10.1039/c2gc36416f
日期:——
A green and practical method to construct benzimidazoles, which are ubiquitous structural units in a number of biologically active compounds, has been developed. The catalyst and additive free conditions, using air as oxidant and the mild conditions make this transformation very green, practical, and attractive.
The present invention is directed to compounds which contain substituted napthyridines which inhibit the activity of Akt, a serine/threonine protein kinase. The invention is further directed to chemotherapeutic compositions containing the compounds of this invention and methods for treating cancer comprising administration of the compounds of the invention.