Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing th

Details Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing th Novel 2-hydroxynaphthalene-1-aldehydes, process for preparing th

1976-07-22

1977-12-20

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

2604381, 260439R, 260520D, 260559R, 542420, C07C 6976

Patent

active

040643492

ABSTRACT:
Novel 2-hydroxynaphthalene-1-aldehydes have been found which have the general formula (I) ##STR1## wherein R is a carboxylic acid group, a carboxylic acid ester group, preferably of an alkanol or of an optionally substituted phenol, an optionally substituted carboxylic acid amide group, or an optionally substituted carboxylic acid hydrazide group, which are very valuable intermediate products for the preparation of coloring agents, optical brighteners, textile auxiliary agents and pharmaceutical products.

REFERENCES:
patent: 3651134 (1972-03-01), Elpern et al.
Chem. Abstr., vol. 53 320e, British Pat. 794,885, May 1958.
Chem. Abstr., vol. 53 5222h, German Pat. 952,629, Nov. 22, 1956.
Chem. Abstr., vol. 77, 101290q Ger. Offen. 2,052,253 (cited to show state of the art).

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