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Abstract：
A series of 4-trifluoromethyl pyrazoles have been prepared via the copper-catalyzed cycloaddition of 2-bromo-3,3,3-trifluoropropene with a variety of N-arylsydnone derivatives under mild conditions. This new protocol under optimized reaction conditions [Cu(OTf)(2)/phen, DBU, CH3CN, 35 degrees C] afforded 4-trifluoromethyl pyrazoles in moderate to excellent yields with excellent regioselectivity.
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RSC ADVANCES
ISSN： 2046-2069
Year： 2019
Issue： 53
Volume： 9
Page： 30952-30956
3 . 1 1 9
JCR@2019
3 . 9 0 0
JCR@2023
ESI Discipline： CHEMISTRY;
ESI HC Threshold：184
CAS Journal Grade：3
Cited Count：
WoS CC Cited Count： 23
SCOPUS Cited Count： 22
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 2
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