A novel synthesis of 5-perfluorophenyl 4,5-dihydro-1H-pyrazoles in THF or water
摘要:
5-Perfluorophenyl 4,5-dihydro-1H-pyrazoles were synthesized from 1,3-dipolar cycloaddition reaction of perfluorobenyl 2,4,6-triisopropyl-benzenesulfonylhydrazone and alpha,beta-unsaturated carbonyl compounds or acrylonitrile in THF or water. It was worthy to note that better results were obtained when water was employed as the solvent, which was considered as an effective, economic and environmentally friendly method to synthesize these pyrazole derivatives. (c) 2007 Elsevier B.V. All rights reserved.
A novel synthesis of 5-perfluorophenyl 4,5-dihydro-1H-pyrazoles in THF or water
作者:Wan Pang、Shifa Zhu、Huanfeng Jiang、Shizheng Zhu
DOI:10.1016/j.jfluchem.2007.06.010
日期:2007.11
5-Perfluorophenyl 4,5-dihydro-1H-pyrazoles were synthesized from 1,3-dipolar cycloaddition reaction of perfluorobenyl 2,4,6-triisopropyl-benzenesulfonylhydrazone and alpha,beta-unsaturated carbonyl compounds or acrylonitrile in THF or water. It was worthy to note that better results were obtained when water was employed as the solvent, which was considered as an effective, economic and environmentally friendly method to synthesize these pyrazole derivatives. (c) 2007 Elsevier B.V. All rights reserved.