METHOD FOR PRODUCING 2-HALOGENACYL-3-AMINO-ACRYLIC ACID DERIVATIVES
1551/DELNP/2004 A (1551/DELNP/2004)
Filed on 2004-06-04
Publication date 2007-02-09
The present invention relates to an improved process for preparing 2-haloacyl-3-aminoacrylic acid derivatives and pyrazole-4-carboxylic acids and derivatives thereof obtainable from it.
Applicant
BAYER CHEMICALS AG
51368 LEVERKUSEN, GERMANY Germany
Inventor
NORBERT LUI, THOMAS BRACKEMEYER, PETER MULLER, MARIELOUISE SCHNEIDER
International Information
Classification
C07C227/16
Publication number
WO 03/051820 A1
Application date
2002-12-04
Application number
PCT/EP02/13721