Method for the preparation of substituted and unsubstituted...

Details Method for the preparation of substituted and unsubstituted... Method for the preparation of substituted and unsubstituted...

C - Chemistry, Metallurgy

07

D

C07D 213/80 (2006.01) C07D 215/54 (2006.01)

Patent

CA 2057787

31,573 METHOD FOR THE PREPARATION OF SUBSTITUTED AND UNSUBSTITUTED 2,3-PYRIDINE AND QUINOLINEDICARBOXYLIC ACIDS ABSTRACT OF THE INVENTION There is provided a process for the preparation of a substituted or unsubstituted 2,3-pyridine or quino- linedcarboxylic acid by hydrolysis of a substituted or unsubstituted 2,3-pyridine or quinolinedicarboxylic acid diester with an acid having an ionization of the pka of less than 3.0 followed by isolation of the product as the free acid or an acid salt.

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