Method for producing anthraquinone compounds

Details Method for producing anthraquinone compounds Method for producing anthraquinone compounds

1986-12-05

1988-11-15

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 9724

Patent

active

047848065

ABSTRACT:
Anthraquinone compounds of the formula, ##STR1## wherein R is hydrogen, alkyl or cycloalkyl, which are useful as intermediates for disperse dyes and as sublimable dyes for thermal transfer recording, are prepared by allowing the compound of the formula, ##STR2## wherein X is hydrogen or sulfonic acid group, to react with a cyanogenating agent in an aqueous medium in the presence of a compound, such as polyalkylene glycols.

REFERENCES:
patent: 1938029 (1933-12-01), Kugel
patent: 3203751 (1965-08-01), Hildreth
patent: 4294769 (1981-10-01), Krock et al.
patent: 4299771 (1981-11-01), Takeshita et al.
patent: 4519947 (1985-05-01), Hattori et al.
Japanese Kokai-Chem. Abstracts, vol. 98, 1983: JP 57/176,944.
Japanese Kokai-Chem. Abstracts, vol. 98, 1983: JP 57/167,952.

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