Calcium Hydroxide Is an Efficient Catalyst for Synthesis of Polyhydroxy Chalcones
作者:P. S. Kulkarni、P. M. Swami、P. K. Zubaidha
DOI:10.1080/15533174.2012.752392
日期:2013.1.1
Calcium hydroxide was found to be an efficient catalyst for synthesis of polyhydroxy chalcones. This method has been employed to synthesize various 2,4-dihydroxychalcones having various substituents on the B ring. The merits of this method include shorter reaction time, inexpensive and easily available catalyst, high yield, and easy workup compared to other reported methods.
Design, synthesis, and in vitro hMAO-B inhibitory evaluation of some 1-methyl-3,5-diphenyl-4,5-dihydro-1H-pyrazoles
A series of 1-methyl-3,5-diphenyl-4,5-dihydro-1H-pyrazoles (3a–k and 4a–u) were designed, synthesized, and evaluated for their inhibitory efficacy towards the two hMAO isoforms. Most of the derivatives were found to be potent and selective hMAO-B inhibitors. In particular, derivative 3g showed greater hMAO-B affinity than selective inhibitor selegiline coupled with high selectivity index (SI = 145)