Dyes having two 5-membered lactone rings fused to a central cyclohexa-1.4-diene nucleus
US4650882A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1984 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Nov 23, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B57/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel hetero-polycyclic compound of the following formula, a method for its preparation and its use in the coloration of textile materials: ##STR1## wherein, Z.sup.1 & Z.sup.2 are each independently --O--, --S-- or --NR.sup.5 -- in which R.sup.5 is H or an optionally-substituted hydrocarbon group or an acyl group; PA0 X.sup.1 & X.sup.2 are selected from H, halogen, cyano, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, aryl, carbamoyl, sulphamoyl, carboxylic acid or carboxylic acid ester; PA0 R.sup.1 to R.sup.4 are each independently selected from H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy, C.sub.1-4 -alkenyl, halogen and the group --X--Y; PA0 X is --O-- or --S--; and PA0 Y is a group of the formula: ##STR2## wherein: V & W are each independently H or optionally substituted alkyl; PA0 p is an integer from 1 to 3; PA0 q is 0 or 1; PA0 p+q is at least 2; and PA0 Z is OR.sup.6 or NR.sup.6 R.sup.7 when q=1; PA0 or Z is OR.sup.8 or SR.sup.8 when q=0; wherein: PA0 R.sup.6 is selected from optionally substituted alkyl, optionally substituted alkoxyalkyl and a second group represented by Y in which R.sup.6 is optionally substituted alkyl or optionally substituted alkoxyalkyl; and PA0 R.sup.7 is selecte…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.