Process for isolating triarylmethane dyestuffs

Details Process for isolating triarylmethane dyestuffs Process for isolating triarylmethane dyestuffs

1976-12-08

1981-01-27

Garvin, Patrick

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260390, 260392, 260393, 260394, C09B 1110

Patent

active

042474701

ABSTRACT:
Process for isolating dyestuffs of the formula ##STR1## wherein R.sub.1 -R.sub.12 denote hydrogen, alkyl, halogenoalkyl, halogen, alkoxy, alkylmercapto, alkylsulphonyl, alkoxysulphonyl, alkylcarbonyl, alkoxycarbonyl, nitro or cyano, X and Y denote ##STR2## and R.sub.13 and R.sub.14 denote hydrogen, alkyl, halogenoalkyl, cyanoalkyl, cycloalkyl, aryl or aralkyl, and wherein

REFERENCES:
patent: 2429081 (1947-10-01), Steuber
patent: 3211757 (1965-10-01), Schafer et al.
patent: 3671553 (1972-06-01), Papenfuss et al.
patent: 3679713 (1972-07-01), Feldman et al.
patent: 3686233 (1972-08-01), Gordon et al.

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