US3975379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dihydroindoles and indolenine dyestuffs
Assignee: Bayer AG
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Filing: 1974-05-01
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Granted: 1976-08-17
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Expires: 1994-05-01
Abstract
Abstract Dihydroindoles of the formula AND THEIR USE AS COUPLING OR CONDENSATION COMPONENTS FOR THE MANUFACTURE OF BASIC INDOLENINE DYESTUFFS OF THE FORMULA The dyestuffs are used for dyeing and printing natural are used for dyeing and printing natural and synthetic materials.
Inventors
- 👤 Ernst Schmitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:10
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/12; C09B31/14; C09B31/15; C07; C07D; C07D209/00; C07D209/02; C07D209/04; C07D209/08; C07D209/10; C07D209/12; C09B23/00; C09B23/14; C09B23/145; C09B44/00; C09B44/10; C09B44/12; C09B44/123; C09B69/00; C09B69/02; C09B69/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
173 words
Methine dyestuff of the formula ##SPC37## in which R 1 and R 2 are C 1 --C 4 -alkyl; R 3 is hydrogen, a non-ionic substituent, carboxyl, or together with the ring, to which it is attached, a benzene ring; n is 1, 2, 3 or 4; R 4 and R 5 are hydrogen or a non-ionic substituent; X.sup.( - ) is an anion; said non-ionic substituents selected from the group consisting of C 1 --C 9 alkyl, chloromethyl, C 1 --C 12 -alkoxymethyl, phenoxymethyl, p-nitrophenoxymethyl, p-methoxyphenoxy, p-chlorophenoxymethyl, allyloxymethyl, propargyloxymethyl, hydroxymethyl, di-C 1 --C 4 -alkylaminomethyl, diallylaminomethyl, pyrrolidinomethyl, phthalimidomethyl, allyl, trifluoromethyl, phenyl, benzyl, cyclohexyl, C 1 --C 4 -alkoxy, sulfamoyl, CN, carbomethoxy, carboethoxy, fluorine, chlorine, methylmercapto, methylsulfonyl and acetylamino; B 1 is CH -- Ar 1 or ##EQU8## Z together with C and N to which it is attached, forms an indolinyl-2-ring; Ar 1 is a radical of the p-amino-benzene, naphthalene; benzofurane, benzothiophene, indole, indoline, 1,2,3,4-tetrahydroquinoline, carbazole, quinoxaline, dihydro-[benzo-1,4-oxazine], dihydro-[benzo-1,4-thiazine], 9, 10-dihydro-phenazine, phenoxazine or phenthiazine series; R 6 is methyl, ethyl or benzyl.
Claim 2
Dependent Claim
173 words
Methine dyestuff of the formula ##SPC37## in which R 1 and R 2 are C 1 --C 4 -alkyl; R 3 is hydrogen, a non-ionic substituent, carboxyl, or together with the ring, to which it is attached, a benzene ring; n is 1, 2, 3 or 4; R 4 and R 5 are hydrogen or a non-ionic substituent; X.sup.( - ) is an anion; said non-ionic substituents selected from the group consisting of C 1 --C 9 alkyl, chloromethyl, C 1 --C 12 -alkoxymethyl, phenoxymethyl, p-nitrophenoxymethyl, p-methoxyphenoxy, p-chlorophenoxymethyl, allyloxymethyl, propargyloxymethyl, hydroxymethyl, di-C 1 --C 4 -alkylaminomethyl, diallylaminomethyl, pyrrolidinomethyl, phthalimidomethyl, allyl, trifluoromethyl, phenyl, benzyl, cyclohexyl, C 1 --C 4 -alkoxy, sulfamoyl, CN, carbomethoxy, carboethoxy, fluorine, chlorine, methylmercapto, methylsulfonyl and acetylamino; B 1 is CH -- Ar 1 or ##EQU8## Z together with C and N to which it is attached, forms an indolinyl-2-ring; Ar 1 is a radical of the p-amino-benzene, naphthalene; benzofurane, benzothiophene, indole, indoline, 1,2,3,4-tetrahydroquinoline, carbazole, quinoxaline, dihydro-[benzo-1,4-oxazine], dihydro-[benzo-1,4-thiazine], 9, 10-dihydro-phenazine, phenoxazine or phenthiazine series; R 6 is methyl, ethyl or benzyl.
Claim 3
Dependent Claim
182 words
Methine dyestuff of claim 1 wherein ##SPC38## or ##SPC39## R 7 and R 8 are independently of one another hydrogen; C 1 --C 4 -alkyl; ethyl substituted by chlorine, cyano, or dimethylamino; cyclohexyl; phenyl; phenyl substituted by methyl; ethyl, methoxy, ethoxy or chlorine; benzyl; or R 7 , R 8 together with N atom form a morpholino or piperidino radical; R 9 is hydrogen or methyl; or R 9 which is bonded to the o-position of N, together with R 7 and the phenylring forms a carbazol or tetrahydrocarbazol ring system; R 10 is hydrogen; methyl; phenyl; or phenyl substituted by chlorine or methyl; R 11 is hydrogen; methyl or ethyl; R 12 is hydrogen; methyl; ethyl; methoxy; chlorine or nitro; m is 1 or 2; R 13 is methyl, ethyl, or n-propyl; R 14 is methyl, ethyl, or n-propyl; R 15 is hydrogen; C 1 --C 4 -alkyl; fluorine; chlorine; trifluoromethyl; cyclohexyl; benzyl; methoxy; ethoxy; methylmercapto; ethylmercapto; methylsulfonyl; phenoxy; methoxycarbonyl; ethoxycarbonyl; sulphamoyl; nitro; amino; acetamino; carboxyl; cyano, or together with the ring to which it is attached, forms a benzene ring.
Claim 4
Dependent Claim
15 words
Methine dyestuff of claim 1 in which B 1 is CH -- Ar 1 .
Claim 5
Dependent Claim
11 words
Methine dyestuff of claim 1 in which B 1 is ##EQU9##
Claim 6
Dependent Claim
9 words
Methine dyestuff of claim 1 having the formula ##SPC40##
Claim 7
Dependent Claim
9 words
Methine dyestuff of claim 1 having the formula ##SPC41##
Claim 8
Dependent Claim
9 words
Methine dyestuff of claim 1 having the formula ##SPC42##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |