Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-s

Details Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-s Process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-s

1990-08-09

1993-03-09

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Diazo reproduction, process, composition, or product

Composition or product which contains radiation sensitive...

430168, 534557, 534558, 534564, G03F 7022, G07C30935, G07C24512

Patent

active

051926407

ABSTRACT:
A process for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-sulfonic acid or salts thereof, of the general formula Z ##STR1## is disclosed in which X=hydrogen, a metal or an ammonium group, preferably an alkali metal or alkaline earth metal, especially sodium or potassium and the ammonium group.
The compounds can be used as much or as intermediates or starting materials for the production of light-sensitive compounds and radiation-sensitive mixtures and materials.

REFERENCES:
patent: 2987513 (1961-06-01), Schmidt et al.
patent: 4104070 (1978-08-01), Moritz et al.
patent: 4576901 (1986-03-01), Stahlhofen et al.
patent: 5077395 (1991-12-01), Scheler et al.
E. L. Martin, et al., "1,2-Naphthoquinone-4-sulfonate, Ammonium and Potassium", Organic Syntheses, vol. 3, pp. 633-636.
M. Gates, et al., "The Synthesis and Resolution of 3-Hydroxy-N-methylisomorphinan", Journal of the American Chemical Society, vol. 80, Mar., 1958, pp. 1186-1191.
J. Kosar, "o-Quinone Diazides", Light-Sensitive Systems, pp. 339-344.
Cava et al., Journal of the American Chemical Society, "Condensed Cyclobutane Aromatic Systems. V. The Synthesis of Some alpha-Diazo-indanones: Ring Contraction in the Indane Series", Oct. 1957, pp. 2257-2263.

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