Unsymmetrical triphenodioxazine dyes

Details Unsymmetrical triphenodioxazine dyes Unsymmetrical triphenodioxazine dyes

1990-11-01

1992-06-30

Shah, Mukund J.

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

Organic compounds

Chalcogen in the nitrogen containing substituent

544 77, 8436, 8527, 8916, 8917, 8918, C07D49804, C09B 1900, C09B 1902

Patent

active

051264501

ABSTRACT:
Unsymmetrical triphendioxazine (TPD) reactive dyes of Formula (1) for the colouration of e.g. wool, silk, leather and cotton are claimed as well as intermediates for their manufacture. ##STR1## wherein W.sup.1 and W.sup.2 are different and each independently of the formula: ##STR2## R.sup.1 and R.sup.2 in each group defined by W.sup.1 or W.sup.2 independently represent H or an optionally substituted hydrocarbon radical or are joined together to form, with B and the two N atoms, a piperazine ring;

REFERENCES:
patent: 3996221 (1976-12-01), Leng et al.
patent: 4568742 (1986-02-01), Harms et al.
patent: 4591643 (1986-05-01), Jager
patent: 4786107 (1988-10-01), Sawamoto et al.
patent: 4786728 (1988-11-01), Schwaiger et al.
patent: 4841049 (1989-06-01), Seitz
patent: 5019134 (1991-05-01), Ridyard et al.

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