Process for the regioselective synthesis of...

Details Process for the regioselective synthesis of... Process for the regioselective synthesis of...

C - Chemistry, Metallurgy

07

D

C07D 231/14 (2006.01)

Patent

CA 2717805

The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-haloalkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives with hydrazines, in the presence of carbonyl com-pounds.

La présente invention concerne un procédé pour effectuer la synthèse régiosélective de dérivés de l'acide L-alkyl-3-halogénoalkyl-pyrazol-4-carboxylique par cyclisation de dérivés de l'acide acrylique 2,3-disubstitués avec des hydrazines en présence de composés carbonylés.

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