NH.sub.4.sup.+ Or group IA metal 2,7-dimethyl-1,2,3-tetrahydro-.

Details NH.sub.4.sup.+ Or group IA metal 2,7-dimethyl-1,2,3-tetrahydro-. NH.sub.4.sup.+ Or group IA metal 2,7-dimethyl-1,2,3-tetrahydro-.

1982-08-20

1985-02-12

Higel, Floyd D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

534768, 534782, 260465E, 260507R, 260509, 544 51, 544 52, 546152, 546159, 548165, 560 32, 560105, 560254, C07C14358, C07D21536, C07D26528, C09B 2944

Patent

active

044992726

ABSTRACT:
2-Hydroxy-3-halo-1-propanesulfonates are reacted with certain arylamines, preferably in the presence of a base such as KOH or NaOH in one or more of ethylene glycol, propylene glycol, 2-ethoxyethanol and the like to give 2-hydroxy-3-(arylamino)-1-propanesulfonates useful as couplers for acid dyes for polyamide fibers. The present coupler products which are derivatives of aniline, tetrahydroquinoline, and benzomorpholine, have the general formulae ##STR1## wherein the rings may be substituted with a wide variety of substituents known to the dye art;

REFERENCES:
patent: 2241769 (1941-05-01), Dickey et al.
patent: 2319078 (1943-05-01), McNally et al.
patent: 3196173 (1965-07-01), Willmund et al.
Dow, Chemical Abstracts, vol. 84, #175165u, (1976).
Tsunoo, Ber. Deut. Chem. Gesell., vol. 68, pp. 1334 to 1341, (1935).

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