Preparation of substituted-2,3-dicarboxypyridinium nitrates

Details Preparation of substituted-2,3-dicarboxypyridinium nitrates Preparation of substituted-2,3-dicarboxypyridinium nitrates

1994-02-02

1995-04-25

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546320, 546321, C07D213807

Patent

active

054100623

ABSTRACT:
There are provided crystalline substituted-2,3-dicarboxypyridinium nitrate salts, the preparation thereof and the use thereof in the isolation and purification of important substituted pyridinedicarboxylic acid herbicide intermediates.

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