Novel triarylmethane compounds

Details Novel triarylmethane compounds Novel triarylmethane compounds

1979-12-26

1981-07-07

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260386, 260390, 260395, 260338, 260388, 544 3, 544162, 544170, 544171, 544229, 544237, 544239, 544192, C09B 1110

Patent

active

042774063

ABSTRACT:
The present invention is concerned with novel triarylmethane dyes possessing in their triaryl structure a 4'-oxo-1'-naphthylidene (or a 4'-oxo-1'-phenylidene) moiety and a phenyl moiety substituted in the ortho-position to the central carbon atom with the group ##STR1## wherein R is alkyl, unsubstituted or substituted with a solubilizing group, and Y is an electron-withdrawing group, which compounds find utility in photographic products and processes.

REFERENCES:
patent: 2673862 (1954-03-01), Krimmel
patent: 2678321 (1954-05-01), Krimmel
patent: 3086979 (1963-04-01), Krimmel
patent: 3406069 (1968-10-01), Overman

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