Visible-light-activated C–C and C–N bond formation in the synthesis of imidazo[1,2-<i>a</i>]pyridines and imidazo[2,1-<i>b</i>]thiazoles under catalyst and solvent-free conditions
作者:Km Neha Shivhare、Manish K. Jaiswal、Anushree Srivastava、Saurabh K. Tiwari、I. R. Siddiqui
DOI:10.1039/c8nj03339k
日期:——
Synthesis of 3-aminoimidazo-fused heterocycles via the Groebke–Blackburn–Bienaymé reaction using a universally available energy source under catalyst and solvent-free conditions.
A facile protocol for the synthesis of 3-aminoimidazo-fused heterocycles via the Groebke–Blackburn–Bienayme reaction under catalyst-free and solvent-free conditions
作者:Shinde Vidyacharan、Anand H. Shinde、Bishnupada Satpathi、Duddu S. Sharada
DOI:10.1039/c3gc42130a
日期:——
A one-pot catalyst, solvent, work-up and column free synthesis of 3-aminoimidazo-fused heterocycles by a three-component reaction of a 2-aminoheterocycle, aldehyde, and isocyanide is presented. This efficient and green protocol has the advantages of environmental friendliness, high yields and operational simplicity.
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.