Anthraquinone compounds

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260383, C07C 9726, C07C 4974

Patent

active

043917542

ABSTRACT:
Compounds of the formula: ##STR1## wherein R.sup.1 is alkyl or aryl;

REFERENCES:
patent: 2321767 (1943-06-01), Ogilvie
patent: 3147284 (1964-09-01), Rhyner
patent: 3502423 (1970-03-01), Buecheler
patent: 4210413 (1980-07-01), Gehrke et al.
patent: 4232950 (1980-11-01), Benham
patent: 4250102 (1981-02-01), Tzikas
patent: 4363743 (1982-12-01), Moeller et al.
The Eighth International Liquid Crystal Conference, Program and Abstract, J. Cognord et al., pp. 1-23, "Dichroic Dyes with Good Stability and High Order Parameter", 1980, Japan.

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