Improved process for the manufacture of...

Details Improved process for the manufacture of... Improved process for the manufacture of...

C - Chemistry, Metallurgy

07

D

C07D 213/803 (2006.01) C07D 213/84 (2006.01) C07D 401/06 (2006.01)

Patent

CA 2178062

There is provided an improved method for the conversion of 5,6-dicarboxyl-3-pyridylmethyl ammonium halide to 5-(alkoxymethyl)pyridine-2,3-dicarboxylate salt via a single step closed reaction with the appropriate alcohol and a base at a temperature of about 120°-180°C. The product pyridinedicarboxylate salt is an important intermediate in the manufacture of pyridine imidazolinone herbicidal agents.

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