Efficient Synthesis of 3-Aminoimidazo[1,2-a] Pyridines Using Silica-Supported Perchloric Acid (HClO4-SiO2) as a Novel Heterogenous Catalyst
作者:Azizollah Habibi、Zahra Tarameshloo、Shahnaz Rostamizadeh、Ali M. Amani
DOI:10.2174/157017812800167439
日期:2012.3.1
An efficient and green protocol for synthesis of 3-aminoimidazo[1,2-a] pyridine derivatives through a three-component reaction of aldehyde, 2-amino pyridine and isocyanide in the presence of silica-supportedperchloricacid (HClO4-SiO2) is described in this paper. The solid catalyst could be recycled and reused.
A highly efficient synthesis of imidazo-fused polyheterocycles via Groebke–Blackburn–Bienaymè reaction catalyzed by LaCl3·7H2O
作者:Anand H. Shinde、Malipatel Srilaxmi、Bishnupada Satpathi、Duddu S. Sharada
DOI:10.1016/j.tetlet.2014.08.126
日期:2014.10
A highly efficient and mild protocol for the synthesis of imidazo-fused polyheterocycles via Groebke-Blackburn-Bienayme reaction under the influence of catalytic amount of lanthanum chloride heptahydrate has been described. A wide range of nitrogen-enriched polyheterocycles are synthesized with high yields under neat conditions. (C) 2014 Elsevier Ltd. All rights reserved.
VERWENDUNG VON SUBSTITUIERTEN IMIDAZO 1,2-A]PYRIDIN-, -PYRIMIDIN- UND -PYRAZIN-3-YL-AMIN-DERIVATEN ZUR HERSTELLUNG VON MEDIKAMENTEN ZUR NOS-INHIBIERUNG
申请人:Grünenthal GmbH
公开号:EP1326613A1
公开(公告)日:2003-07-16
VERWENDUNG VON SUBSTITUIERTEN IMIDAZO [1,2-A]PYRIDIN-, -PYRIMIDIN- UND -PYRAZIN-3-YL-AMIN-DERIVATEN ZUR HERSTELLUNG VON MEDIKAMENTEN ZUR NOS-INHIBIERUNG
申请人:Grünenthal GmbH
公开号:EP1326613B1
公开(公告)日:2004-06-02
VERWENDUNG VON SUBSTITUIERTEN IMIDAZO ¬1,2-A|PYRIDIN-, -PYRIMIDIN- UND -PYRAZIN-3-YL-AMIN-DERIVATEN ZUR HERSTELLUNG VON MEDIKAMENTEN ZUR NOS-INHIBIERUNG