EP0182507A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Hetero-polycyclic dyestuffs, methods for their preparation and their use in colouration of textile materials
Assignee: Syngenta Ltd
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Filing: 1985-10-22
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Granted: —
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Expires: 2005-10-22
Abstract
Abstract A compound of the formula: wherein, Z 1 & Z 2 are each independently - 0 -, -S- or - NR 5 - in which R 5 is H or an optionally-substituted hydrocarbon group or an acyl group; X 1 & X 2 are selected from H, cyano, C 1 4 -alkyl, C 1 4 -alkoxy, aryl, carbamoyl, sulphamoyl, carboxylic acid or carboxylic acid ester; R 1 toR 4 are each independently selected from H, C 1-4 -alkyl, C 1-4 -alkoxy, C 1-4 -alkenyl, halogen and the group -X- Y; X is -O- or -S-; and Y is C 2 10 -alkenyl provided that, the substituents on rings A & B are different when Z 1 & Z 2 are the same or that Z 1 & Z 2 are different when the substituents on rings A & B are the same, which is suitable for the coloration of synthetic textile materials and processes for its preparation.
Inventors
- 👤 Ronald Wynford Kenyon
- 👤 Derek Thorp
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 14:52
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D491/00; C07D491/02; C07D491/04; C07D493/00; C07D493/02; C07D493/04; C07D495/00; C07D495/02; C07D495/04; C09; C09B; C09B57/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
149 words
A compound of the formula: wherein, Z 1 & Z 2 are each independently - O -, - S - or - NR 5 - in which R 5 is H or an optionally-substituted hydrocarbon group or an acyl group; X 1 & X 2 are selected from H, halogen, cyano, C 1-4 -alkyl, C 1-4 -alkoxy, aryl, carbamoyl, sulphamoyl, carboxylic acid or carboxylic acid ester; R 1 to R 4 are each independently selected from H, C 1-4 -alkyl, C 1-4 -alkoxy, C 1-4 -alkenyl, halogen and the group - X - Y; X is - 0 - or - S -; and Y is C 2-10 -alkenyl provided that, the substituents on rings A & B are different when Z 1 & Z 2 are the same or that Z 1 & Z 2 are different when the substituents on rings A & B are the same.
Claim 2
Dependent Claim
149 words
A compound of the formula: wherein, Z 1 & Z 2 are each independently - O -, - S - or - NR 5 - in which R 5 is H or an optionally-substituted hydrocarbon group or an acyl group; X 1 & X 2 are selected from H, halogen, cyano, C 1-4 -alkyl, C 1-4 -alkoxy, aryl, carbamoyl, sulphamoyl, carboxylic acid or carboxylic acid ester; R 1 to R 4 are each independently selected from H, C 1-4 -alkyl, C 1-4 -alkoxy, C 1-4 -alkenyl, halogen and the group - X - Y; X is - 0 - or - S -; and Y is C 2-10 -alkenyl provided that, the substituents on rings A & B are different when Z 1 & Z 2 are the same or that Z 1 & Z 2 are different when the substituents on rings A & B are the same.
Claim 3
Dependent Claim
16 words
A compound according to Claim 1 wherein Z 1 and Z 2 are both oxygen .
Claim 4
Dependent Claim
17 words
A compound according to Claim 1 or Claim 2 wherein X and X 2 are both hydrogen.
Claim 5
Dependent Claim
17 words
A compound according to any one of Claims 1 to 3 wherein X is - 0 -.
Claim 6
Dependent Claim
43 words
A compound according to any one of Claims 1 to 4 wherein R and R 2 are both hydrogen, both C 1-4 -alkyl, or R 1 is H and R 2 is C 1-4 -alkyl or C 1-4 -alkoxy in the para position.
Claim 7
Dependent Claim
53 words
A compound according to any one of Claims 1 to 5 wherein R and R 4 are both hydrogen or both C 1-4 -alkyl, or R 3 is H and R 4 is C 1-4 -alkyl or C 1-4 -alkoxy in an ortho position with respect to the group - X - Y.
Claim 8
Dependent Claim
21 words
A compound according to any one of Claims 1 to 6 wherein Y is C 3 - or C 4 -alkenyl.
Claim 9
Dependent Claim
15 words
A compound according to Claim 7 wherein Y is selected from allyl, methallyl and crotyl.
Claim 10
Dependent Claim
113 words
A process for the preparation of a dye according to Claim 2 which comprises reacting a compound of the formula: in which X , X , R 1 , R and A have the same meaning as in Claim 1, with a mandelic acid or derivative thereof of the formula: wherein X and Y have the same meanings as in Claim 1 and L is COOR 6 , CONR 7 R 8 or CN, in which R , R 7 and R are each independently H or C 1-4 -alkyl in an organic solvent at a temperature not exceeding 120°C in the presence of p-toluenesulphonic acid as catalyst and oxidising the intermediate product.
Claim 11
Dependent Claim
43 words
A process for the coloration of a synthetic textile material which comprises dyeing or printing the synthetic textile material from a dyebath or with a print paste containing an aqueous dispersion of a compound according to any one of Claims 1 to 8.
References Cited (Backward Citations)
No citation records indexed.
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