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Pd‐NHC‐Catalyzed Direct Arylation of 1,4‐Disubstituted 1,2,3‐Triazoles with Aryl Halides
Author(s) -
He Tao,
Wang Min,
Li Pinhua,
Wang Lei
Publication year - 2012
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201100275
Subject(s) - chemistry , aryl , halide , electrophile , catalysis , combinatorial chemistry , medicinal chemistry , organic chemistry , alkyl
A highly efficient method for the synthesis of unsymmetrical multi‐substituted 1,2,3‐triazoles via a direct Pd‐NHC system catalyzed C(5)‐arylation of 1,4‐disubstituted triazoles, which are readily accessible via "click" chemistry has been developed. It is important to note that CH bond functionalizations of 1,2,3‐triazoles with a variety of differently substituted aryl iodides and bromides as electrophiles can be conveniently achieved through this catalytic system at significantly milder reaction temperatures of 100°C under air.