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
Synthesis and biological evaluation of some 2-(3,5-dimethyl-1H-pyrazol-1-yl)-1-arylethanones: Antibacterial, DNA photocleavage, and anticancer activities
作者:Vinod Kumar、Kamalneet Kaur、Deepkamal N. Karelia、Vikas Beniwal、Girish Kumar Gupta、Arun K. Sharma、Akhilesh Kumar Gupta
DOI:10.1016/j.ejmech.2014.05.004
日期:2014.6
active agents, regioselective synthesis of a series of 2-(3,5-dimethyl-1H-pyrazol-1-yl)-1-arylethanones 4a–k has been achieved under facile, extremely mild and greener reaction conditions with excellent yields. Moreover, one pot multicomponent reaction has also been reinvestigated under previously reported solvent conditions to prepare 4a–b and found that the reaction generates significant amount of