Process for preparing o-hydroxyarylaldehydes

Details Process for preparing o-hydroxyarylaldehydes Process for preparing o-hydroxyarylaldehydes

1976-11-23

1978-04-18

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260571, C07C 4516

Patent

active

040851460

ABSTRACT:
A process for the manufacture of o-hydroxyarylaldehydes which comprises the steps of (1) oxidizing a 2-arylaminomethylphenol, optionally substituted in the phenolic ring by one or more alkyl groups, to the corresponding optionally substituted 2-hydroxybenzylidenearylamine which (2) is hydrolyzed to the corresponding optionally substituted o-hydroxybenzaldehyde.

REFERENCES:
patent: 1345649 (1920-07-01), Weiss
patent: 1783584 (1930-12-01), Reddelien et al.
patent: 2576064 (1951-11-01), Britton et al.
patent: 2576065 (1951-11-01), Britton et al.
patent: 3173956 (1965-03-01), Grinstead
Walker, Formaldehyde (1964) pp. 319-321.

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