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Journal of the Mexican Chemical Society
versión impresa ISSN 1870-249X
Resumen
ALINEZHAD, Heshmatollah; TAJBAKHSH, Mahmood y ZARE, Mahboobeh. One-Pot Regioselective Synthesis of 4-Bromopyrazole Derivatives Under Solvent Free Conditions. J. Mex. Chem. Soc [online]. 2011, vol.55, n.4, pp.238-241. ISSN 1870-249X.
An efficient protocol for the one pot regioselective synthesis of 4-bromopyrazole derivatives from 1,3-diketones, arylhydrazines and N-bromosaccharin, in the presence of silica gel supported sulfuric acid as heterogeneous catalyst, under solvent free conditions, is reported.
Palabras llave : 4-bromopyrazole; solvent free; N-bromosaccharin, 1; 3-diketone; arylhydrazine.