3-Formyl-pyridines and process for making them

Details 3-Formyl-pyridines and process for making them 3-Formyl-pyridines and process for making them

1977-07-29

1979-06-05

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260156, 542420, 542423, 8 42R, C07D21369, C07D21376

Patent

active

041574460

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: 3867392 (1975-02-01), Heinrich et al.
Reeve et al., J. Org. Chem. 31, pp. 2164-2168 (1966).
Beilstein, 4th Edition, vol. 21, p. 165.
Bobbitt et al., J. Org. Chem. 25, 560 (1960).

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