One-pot synthesis of trisubstituted pyrazoles via multicomponent approach
作者:P. Santhosh、V. S. R. Chunduru、V. Rajeswar Rao
DOI:10.1007/s10593-011-0779-z
日期:2011.7
An efficient one-pot multicomponent reaction for the synthesis of 1-aryl- or 1-heteryl-substituted 3,5-dimethylpyrazoles with excellent yields has been described. Reaction of 3-(2-bromoacetyl)coumarins or phenacyl bromides with acetylacetone and hydrazinehydrate in ethanol afforded the corresponding 3,5-dimethylpyrazoles in good yields. All the synthesized compounds were characterized by their analytical