Process for the preparation of disperse dyes

Details Process for the preparation of disperse dyes Process for the preparation of disperse dyes

1987-07-29

1989-02-14

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260377, 260691, 549475, 549479, C07C10375, C07D33332, C07D30702

Patent

active

048047678

ABSTRACT:
Dyes of formula (1) as claimed in claim 1 can conveniently be prepared by reacting an anthraquinone compound of formula (2) with a haloformate of formula (3) in an inert organic solvent and in the presence of 1 to 2 moles of a heterocyclic tertiary nitrogen base per mole of compound of formula (2).

REFERENCES:
patent: 3803168 (1974-04-01), Kolliker et al.
patent: 3806524 (1974-04-01), Kolliker et al.
Morrison & Boyd, Organic Chemistry 3rd ed. 1973, p. 666.

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