Combined experimental and computational investigations of rhodium- and ruthenium-catalyzed C-H functionalization of pyrazoles with alkynes
Detailed experimental and computational studies are reported on the mechanism of the coupling of alkynes with 3-arylpyrazoles at [Rh(MeCN) 3Cp*][PF6]2 and [RuCl2(p- cymene)]2 catalysts. Density functi
Algarra, Andres G.,Cross, Warren B.,Davies, David L.,Khamker, Qudsia,Macgregor, Stuart A.,McMullin, Claire L.,Singh, Kuldip
p. 1954 - 1970
(2014/04/03)
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)
Dehydrative Ring Closure of Some α-Pyrazolyl Ketones. Anomalous Closure of 1-Phenyl-1--acetophenone to 2-Methyl-4,5-diphenylbenzopyrazoloisoquinoline
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Schweizer, Edward E.,Nelson, Mitchel,Stallings, William
p. 4795 - 4797
(2007/10/02)
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