Sulfonyloxy substituted tris-azoaryl dyes and copper complex sal

Details Sulfonyloxy substituted tris-azoaryl dyes and copper complex sal Sulfonyloxy substituted tris-azoaryl dyes and copper complex sal

1994-03-14

1995-08-29

Gerstl, Robert

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

Organic compounds

Azo

534811, 534815, 534581, 534602, 534887, C09B 3116, C09B 4528

Patent

active

054461359

ABSTRACT:
Dyes having the specific structural formula (1) set out below, their copper salt dyes, water-soluble azo dyes containing the dyes or the copper salt dyes, and polarizing films containing the water-soluble azo dyes: ##STR1## wherein A means a benzene or naphthalene ring having a sulfone group or a base thereof, Y and Z individually denote a group of the following formula (a); ##STR2## wherein R.sup.2 is a hydrogen atom, a methyl group, a methoxyl group or an ethoxyl group and R.sup.3 is a methyl, methoxyl or ethoxyl group,
R.sup.1 represents an amino, C.sub.1-4 alkylamino, C.sub.2-4 alkylcarboxyamino, benzoylamino or phenylamino group bonded to the 6 or 7 position of the naphthalene ring, and X denotes a hydrogen, sodium, potassium or lithium atom, with the proviso that Y and Z are different but, when both R.sup.2 s are hydrogen atoms and both R.sup.3 s are methoxyl groups, Y and Z may be the same.

REFERENCES:
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patent: 4841037 (1989-06-01), Ohta et al.
patent: 5256194 (1993-10-01), Nishiwaki et al.
Suzuki et al., Chemical Abstracts, 116:95274t (1992).
Kotani et al., Chemical Abstracts, 115:38339y (1991).
Sumiya et al., Chemical Abstracts, 112:218407r (1990).

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