Substituted pyridines and process for making them

Details Substituted pyridines and process for making them Substituted pyridines and process for making them

1978-10-25

1980-02-26

Demers, Arthur P.

Harness for working animal

106 20, 546 6, C07D21353

Patent

active

041907230

ABSTRACT:
A .beta.,.beta.,.beta.-trihalo-.alpha.-hydroxyethyl (e.g. --CHOH--CCl.sub.3) group is introduced into a 2,6-dihydroxy pyridine. The 3-formyl-4-methyl-2,6-dihydroxy pyridine produced by splitting off haloform from the trihalohydroxyethyl product, is a desirable intermediate for the making of dyes and other products, and the alkali metal or alkaline earth metal salts of the formyl compound are more stable forms of this intermediate.

REFERENCES:
patent: 2753344 (1956-07-01), Schmidt et al.
patent: 3891685 (1975-06-01), Hari et al.
patent: 4096157 (1978-06-01), Hunger
GRAF Chemical abstracts, 58(1963), col. 13879d and e.

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