Process for preparing 1,5-diaryl-3-substituted pyrazoles

Details Process for preparing 1,5-diaryl-3-substituted pyrazoles Process for preparing 1,5-diaryl-3-substituted pyrazoles

2007-07-24

2007-07-24

McKane, Joseph K. (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

11215329

ABSTRACT:
A process for making a compound of formula I wherein the substituents are as described in the specification comprising reacting a ketone of formula II with succinic anhydride and an alkoxide base to form a compound of formula IIIwhich is reacted with a compound of formula IV to form a compound of Vand reacting with an alcohol to form the corresponding ester of formula VIand reacting the ester with N-methylhydroxylamine.

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