Rhodium(III)-catalyzed oxidative coupling of 5-Aryl-1 H -pyrazoles with alkynes and acrylates
[RhCp Cl2]2-catalyzed oxidative coupling of 5-aryl-1H-pyrazoles with alkynes and acrylates has been achieved using Cu(OAc)2 as an oxidant. Coupling with alkynes afforded six-membered azacycles as a result of C-C and C-N coupling. Coupling with acrylates followed a process of diolefination and a subsequent aza-Michael cyclization.
Li, Xingwei,Zhao, Miao
experimental part
p. 8530 - 8536
(2011/12/04)
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