EP0492893A2
Expired / Lapsed
EP
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Mixtures and mixed crystals of dyes
Assignee: Syngenta Ltd
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Filing: 1991-12-11
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Granted: —
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Expires: 2011-12-11
Abstract
Abstract A dyestuff comprising a mixture of two or more compounds of Formula (1): wherein : R 1 & R 2 are each independently selected from -H, nitro, halogen, C 1-6 -alkyl, C 1-6 -alkoxy, phenyl, phenoxy, C 1-6 -alkoxyphenyl, cyano, -COOR and -SR, hydroxy, OCO.C 1-6 -alkyl, -SO 2 OH, -S0 2 CI, -SO 2 C 1-6 -alkyl, -NR 2 and -CONR 2 , -OC 1-6 -alkyl-COOR 5 , -OC 1-6 -alkylOR 5 , -OC 1-6 -alkylOR50R 5 , and -OC 1-6 -alkylOCOR 5 , -OC 2-6 -alkenyl, -OC 1-6 -alkyl-Z, -OC 1-6 -alkylOC 1-6 -alkyl-Z and - OC 1-6 -aIkyISC 1-6 -alkyl-Z in which Z is a 5-, 6- or 7- membered saturated or unsaturated heterocyclic residue ; and R 3 , R 4 , R 5 & R 6 are each independently selected from -H, C 1-6 -alkyl, halogen and C 1-6 -alkoxy, in which each R independently is -H, C 1-6 -alkyl or phenyl and in which each R 5 independently is -H, C 1-6 -alkyl, -C 1-6 -alkyl-C 1-6 -alkoxy or phenyl except where the mixture contains one compound of Formula (1) in which R 2 is -OC 2 H 5 and R 1 , R 3 , R 4 , R 5 and R 6 are all -H, one compound of Formula (1) in which R 2 is n-propoxy and R 1 , R 3 , R 4 , R 5 and R 6 are all -H and 4-[1-cyanomethyl-4,5-dicyano imidaz-2-ylazo] N-ethyl-N-(ethoxycarbonylpropyl)aminobenzene.
Inventors
- 👤 Leslie Arthur Mather
- 👤 David Brierley
- 👤 James Franklin Bullock
- 👤 Nigel Hughes
- 👤 Prakash Patel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0033; C09B67/0034; C09B57/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
248 words
A dyestuff comprising a mixture of two or more compounds of Formula (1): wherein: R 1 & R 2 are each independently selected from -H, nitro, halogen, C 1-6 -alkyl, C 1-6 -alkoxy, phenyl, phenoxy, C 1-6 -alkoxyphenyl, cyano, -COOR and -SR, hydroxy, OCO.C 1-6 -alkyl, -S0 2 0H, -S0 2 CI, - SO 2 C 1-6 -alkyl, -NR 2 and -CONR 2 , -OC 1-6 -alkyl-COOR 5 , -OC 1-6 -alkylOR 5 , -OC 1-6 -alkylOR 5 OR 5 , and -OC 1-6 - alkylOCOR 5 , -OC 2-6 -alkenyl, -OC 1-6 -alkyl-Z, -OC 1-6 -alkylOC 1-6 -alkyl-Z and -OC 1-6 -alkylSC 1-6 -alkyl-Z in which Z is a 5-, 6- or 7- membered saturated or unsaturated heterocyclic residue; and R 3 , R 4 , R 5 & R 6 are each independently selected from -H, C 1-6 -alkyl, halogen and C 1-6 -alkoxy, in which each R independently is -H, C 1-6 -alkyl or phenyl and in which each R 5 independently is -H, C 1-6 - alkyl, -C 1-6 -alkyl-C 1-6 -alkoxy or phenyl except where the mixture contains one compound of Formula (1) in which R 2 is -OC 2 H 5 and R 1 , R 3 , R 4 , R 5 and R 6 are all -H, one compound of Formula (1) in which R 2 is n-propoxy and R 1 , R 3 , R 4 , R 5 and R 6 are all -H and 4-[1-cyanomethyl-4,5-dicyano imidaz-2-ylazo] N-ethyl-N-(ethoxycarbonylpropyl)aminobenzene.
Claim 2
Dependent Claim
248 words
A dyestuff comprising a mixture of two or more compounds of Formula (1): wherein: R 1 & R 2 are each independently selected from -H, nitro, halogen, C 1-6 -alkyl, C 1-6 -alkoxy, phenyl, phenoxy, C 1-6 -alkoxyphenyl, cyano, -COOR and -SR, hydroxy, OCO.C 1-6 -alkyl, -S0 2 0H, -S0 2 CI, - SO 2 C 1-6 -alkyl, -NR 2 and -CONR 2 , -OC 1-6 -alkyl-COOR 5 , -OC 1-6 -alkylOR 5 , -OC 1-6 -alkylOR 5 OR 5 , and -OC 1-6 - alkylOCOR 5 , -OC 2-6 -alkenyl, -OC 1-6 -alkyl-Z, -OC 1-6 -alkylOC 1-6 -alkyl-Z and -OC 1-6 -alkylSC 1-6 -alkyl-Z in which Z is a 5-, 6- or 7- membered saturated or unsaturated heterocyclic residue; and R 3 , R 4 , R 5 & R 6 are each independently selected from -H, C 1-6 -alkyl, halogen and C 1-6 -alkoxy, in which each R independently is -H, C 1-6 -alkyl or phenyl and in which each R 5 independently is -H, C 1-6 - alkyl, -C 1-6 -alkyl-C 1-6 -alkoxy or phenyl except where the mixture contains one compound of Formula (1) in which R 2 is -OC 2 H 5 and R 1 , R 3 , R 4 , R 5 and R 6 are all -H, one compound of Formula (1) in which R 2 is n-propoxy and R 1 , R 3 , R 4 , R 5 and R 6 are all -H and 4-[1-cyanomethyl-4,5-dicyano imidaz-2-ylazo] N-ethyl-N-(ethoxycarbonylpropyl)aminobenzene.
Claim 3
Dependent Claim
129 words
A dyestuff comprising a physical mixture of two or more compounds of Formula (1): wherein: R 1 is -H, -OH, -OCO.C 1-6 -alkyl, or C 1-6 -alkoxy; R 2 is -H or C 1-6 -alkoxy; and R 3 , R 4 , R 5 & R 6 are all -H; provided that both R 1 and R 2 are not -H, except where the mixture contains one compound of Formula (1) in which R 2 is -OC 2 H 5 and R 1 , R 3 , R 4 , R 5 and R 6 are all -H, one compound of Formula (1) in which R 2 is n-propoxy and R 1 , R 3 R 4 , R 5 and R 6 are all -H and 4-{1-cyanomethyl-4,5- dicyanoimidaz-2-ylazo]N-ethyl-N-(ethoxycarbonylpropyl)aminobenzene.
Claim 4
Dependent Claim
129 words
A dyestuff comprising a physical mixture of two or more compounds of Formula (1): wherein: R 1 is -H, -OH, -OCO.C 1-6 -alkyl, or C 1-6 -alkoxy; R 2 is -H or C 1-6 -alkoxy; and R 3 , R 4 , R 5 & R 6 are all -H; provided that both R 1 and R 2 are not -H, except where the mixture contains one compound of Formula (1) in which R 2 is -OC 2 H 5 and R 1 , R 3 , R 4 , R 5 and R 6 are all -H, one compound of Formula (1) in which R 2 is n-propoxy and R 1 , R 3 R 4 , R 5 and R 6 are all -H and 4-{1-cyanomethyl-4,5- dicyanoimidaz-2-ylazo]N-ethyl-N-(ethoxycarbonylpropyl)aminobenzene.
Claim 5
Dependent Claim
98 words
A dyestuff comprising a mixed crystal of two or more compounds of Formula (1): wherein: R 1 is selected from -OCH 3 , -OC 2 H 5 , -OC 3 H 7 and -H; R 2 is selected from -OCH 2 C0 2 C 2 H 4 0CH 3 ; -OCH 2 CO 2 C 2 H 4 OC 2 H 5 ; -OCH 2 COOCH 3 ; OCH 2 COOC 2 H 5 and -H; provided that both R 1 and R 2 are not H; and R3 and R 4 are -H or -CH 3 .
Claim 6
Dependent Claim
98 words
A dyestuff comprising a mixed crystal of two or more compounds of Formula (1): wherein: R 1 is selected from -OCH 3 , -OC 2 H 5 , -OC 3 H 7 and -H; R 2 is selected from -OCH 2 C0 2 C 2 H 4 0CH 3 ; -OCH 2 CO 2 C 2 H 4 OC 2 H 5 ; -OCH 2 COOCH 3 ; OCH 2 COOC 2 H 5 and -H; provided that both R 1 and R 2 are not H; and R3 and R 4 are -H or -CH 3 .
Claim 7
Dependent Claim
77 words
A dyestuff comprising a mixed crystal of two or more compounds of Formula (1): wherein: R1 is -OH or -OC 5 H 11 ; R 2 is selected from -OCH 2 C0 2 C 2 H 4 0CH 3 ; -OCH 2 CO 2 C 2 H 4 OC 2 H 5 ; -OCH 2 COOCH 3 and - OCH 2 COOC 2 H 5 ; and R3 and R 4 are -H or -CH 3 .
Claim 8
Dependent Claim
77 words
A dyestuff comprising a mixed crystal of two or more compounds of Formula (1): wherein: R1 is -OH or -OC 5 H 11 ; R 2 is selected from -OCH 2 C0 2 C 2 H 4 0CH 3 ; -OCH 2 CO 2 C 2 H 4 OC 2 H 5 ; -OCH 2 COOCH 3 and - OCH 2 COOC 2 H 5 ; and R3 and R 4 are -H or -CH 3 .
References Cited (Backward Citations)
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