Copper-catalyzed chemoselective synthesis of 4-trifluoromethyl pyrazoles - Details

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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　°C]　afforded　4-trifluoromethyl　pyrazoles　in　moderate　to　excellent　yields　with　excellent　regioselectivity.　©　The　Royal　Society　of　Chemistry.

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[ 1 ] [Lu, J.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 2 ] [Man, Y.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 3 ] [Zhang, Y.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 4 ] [Lin, B.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
[ 5 ] [Lin, Q.]Ocean College, Minjiang University, Fuzhou, 350108, China
[ 6 ] [Weng, Z.]Fujian Provincial Key Laboratory of Electrochemical Energy Storage Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China

Reprint 's Address：

[Lin, Q.]Ocean College, Minjiang UniversityChina

Email：

zweng@fzu.edu.cn

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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 HC Threshold：184

CAS Journal Grade：3

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SCOPUS Cited Count： 23

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 1

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