Preparation of 3,6-dichloropicolinic acid

Details Preparation of 3,6-dichloropicolinic acid Preparation of 3,6-dichloropicolinic acid

1977-03-21

1978-05-02

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602955R, 424266, C07D21316, A61K 31455

Patent

active

040874311

ABSTRACT:
3,6-Dichloropicolinic acid is prepared by reacting 3,5,6-trichloro-4-hydrazino picolinic acid with from 2 to 3 moles of a basic reagent per mole of the picolinic acid reactant, acidifying the reaction mixture with a mineral acid and recovering the desired 3,6-dichloropicolinic acid product.

REFERENCES:
patent: 3971799 (1976-07-01), McGregor
Collins et al., J. of Chem. Soc. (c), Organic Chem., London 1971, pp. 167-174.

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