Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1994-03-16
1994-12-06
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568710, C07C20523, C07C20520
Patent
active
053713036
ABSTRACT:
4,6-Dinitroresorcinol is prepared by reacting resorcinol with concentrated nitric acid that is substantially free of suboxides of nitric acid. It has been found that greater than 60 percent yields of the desired product can be obtained when the concentration of aqueous nitric acid used is between about 80 and about 93 weight percent, and the concentration of suboxides is less than about 2 weight percent based on the weight of nitric acid.
REFERENCES:
patent: 3694513 (1972-09-01), Tobey et al.
patent: 3715384 (1973-02-01), Pianka et al.
patent: 4533692 (1985-08-01), Wolfe et al.
patent: 4745232 (1988-05-01), Schmidt et al.
patent: 4982001 (1991-01-01), Lysenko et al.
Synthesis of 4,6-Dinitroresorcinol by Robert J. Schmitt et al. listed in J. Org. Chem. 1988, 53, pp. 5568-5569; .COPYRGT.1988 American Chemical Society.
2,4,6-Trinitroresorcinol by B. A. Bydal, on Organic Preparations and Procedures Int. 5(6), 271-72 (1973) .COPYRGT.1973 by Organic Preparations and Procedures, Inc.
Dinitroso-Resorcinol by W. R. Orndorff et al. listed in vol. 45 pp. 1536-1539.
Frycek George J.
Hull, Jr. John W.
Kruper William J.
Lysenko Zenon
Lone Werren B.
The Dow Chemical Company
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