Preparation of dye cyanides

Details Preparation of dye cyanides Preparation of dye cyanides

1976-05-24

1977-11-08

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260395, 260391, 260392, 260393, 260394, C09B 1110, C09B 1106

Patent

active

040575632

ABSTRACT:
Cyanides of amino triarylmethane dyes are prepared by the reaction of dye bases with hydrogen cyanide. The hydrogen cyanide may be provided in gaseous or liquid form or derived from a cyanohydrin.

REFERENCES:
patent: 2829148 (1958-04-01), Chalkley
patent: 2829149 (1958-04-01), Chalkley
patent: 2839542 (1958-06-01), Chalkley

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