Method for the regioselective synthesis of 1-alky1-3-haloalkyl-pyrazole-4-carboxylic acid derivatives

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United States of America Patent

PATENT NO 8629288
APP PUB NO 20110009642A1
SERIAL NO

12919365

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Abstract

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The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.

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  • BAYER INTELLECTUAL PROPERTY GMBH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Heinrich, Jens-Dietmar Burscheid, DE 22 68
Lui, Norbert Odenthal, DE 131 436
Pazenok, Sergii Solingen, DE 83 112
Wollner, Thomas Köln, DE 5 30

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