Monoazo dyestuffs derived from benzothiazole

Details Monoazo dyestuffs derived from benzothiazole Monoazo dyestuffs derived from benzothiazole

1979-12-06

1984-12-18

Warren, Charles F.

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

Organic compounds

Azo

C07D27782, C09B 2908

Patent

active

044889925

ABSTRACT:
A disperse dye of the formula, ##STR1## wherein R.sub.1 is an alkyl group having 5 to 6 carbon atoms, R.sub.2 is an alkyl group having 5 to 6 carbon atoms, a cyano-ethyl group, R.sub.3 is a hydrogen atom or a lower alkyl, amino or phenyl group, and Y.sub.1 and Y.sub.2 represent independently a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a nitro group, a cyano group, a thiocyanate group or an alkylsulfonyl group, provided that both Y.sub.1 and Y.sub.2 are not hydrogen at the same time and Y.sub.1 is located at the 4- or 5-position, which is useful for dyeing hydrophobic fibers in brilliant red to violet shade with good fastnesses.

REFERENCES:
patent: 2889315 (1959-06-01), Bossard et al.
patent: 3639384 (1972-02-01), Weaver et al.
patent: 4052379 (1977-10-01), Gourley
patent: 4247458 (1981-01-01), Shuttleworth
Japanese Industrial Standard L 0879-1975 and English translation thereof.
Japanese Industrial Standard L 0849-1971.
International Organization for Standardization 105 x 12-1978, (corresponding to Japanese Industrial Standard L 0849-1971).
International Organization for Standardization 105-A01-1978.
International Organization for Standardization 105-A03-1978, (corresponding to Japanese Industrial Standard 0801).

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