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5-alkoxy-2,4-diamino-alkyl-benzenes and hairdye compositions based on 5-alkoxy-2,4-diamino-alkyl-benzenes
Assignee: Procter and Gamble Deutschland GmbH
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Filing: 1987-06-20
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Granted: 1989-08-08
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Expires: 2007-06-20
Abstract
Abstract PCT No. PCT/EP87/00320 Sec. 371 Date Feb. 26, 1988 Sec. 102(e) Date Feb. 26, 1988 PCT Filed Jun. 20, 1987 PCT Pub. No. WO88/00042 PCT Pub. Date Jan. 14, 1988.New 5-alkoxy-2,4-diaminoalkylbenzenes is disclosed having the formula (I) <IMAGE> (I) where R1 is methyl or ethyl and R2 is an alkyl radical having from 2 to 4 carbon atoms, a monohydroxyalkyl radical having from 2 to 4 carbon atoms or a dihydroxyalkyl radical having from 3 to 4 carbon atoms, as well as their acid addition salts, and oxidative hair dyeing compositions containing compounds of formula (I).
Inventors
- 👤 Thomas Clausen
- 👤 Eugen Konrad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:33
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/10; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/411; C; C07; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/37
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
54 words
A compound of the formula (I) ##STR7## where R 1 is methyl or ethyl and R 2 is an alkyl radical having 2 to 4 carbon atoms, a monohydroxyalkyl radical having 2 to 4 carbon atoms or a dihydroxyalkyl radical having 3 to 4 carbon atoms, or a physiologically acceptable acid addition salt thereof.
Claim 2
Dependent Claim
54 words
A compound of the formula (I) ##STR7## where R 1 is methyl or ethyl and R 2 is an alkyl radical having 2 to 4 carbon atoms, a monohydroxyalkyl radical having 2 to 4 carbon atoms or a dihydroxyalkyl radical having 3 to 4 carbon atoms, or a physiologically acceptable acid addition salt thereof.
Claim 3
Dependent Claim
14 words
2,4-diamino-5-(2'-hydroxyethyl)oxytoluol or a physiologically acceptable acid addition salt thereof as defined in claim 1.
Claim 4
Dependent Claim
14 words
2,4-diamino-5-ethoxytoluol or a physiologically acceptable acid addition salt thereof as defined in claim 1.
Claim 5
Dependent Claim
107 words
A composition for oxidative dyeing of hair comprising a developer compound and a coupler compound of the formula (I) ##STR8## where R 1 is methyl or ethyl and R 2 is an alkyl radical having 2 to 4 carbon atoms, a monohydroxyalkyl radical having from 2 to 4 carbon atoms or a dihydroxyalkyl radical having from 3 to 4 carbon atoms, or a physiologically acceptable acid addition salt thereof, wherein the coupler compound is capable of reacting with the developer compound under oxidative conditions and is present in an amount effective to react with the developer compound under oxidative conditions, together with a physiologically acceptable inert carrier.
Claim 6
Dependent Claim
107 words
A composition for oxidative dyeing of hair comprising a developer compound and a coupler compound of the formula (I) ##STR8## where R 1 is methyl or ethyl and R 2 is an alkyl radical having 2 to 4 carbon atoms, a monohydroxyalkyl radical having from 2 to 4 carbon atoms or a dihydroxyalkyl radical having from 3 to 4 carbon atoms, or a physiologically acceptable acid addition salt thereof, wherein the coupler compound is capable of reacting with the developer compound under oxidative conditions and is present in an amount effective to react with the developer compound under oxidative conditions, together with a physiologically acceptable inert carrier.
Claim 7
Dependent Claim
14 words
A composition as defined by claim 4, characterized in that R 1 is methyl.
Claim 8
Dependent Claim
34 words
A composition as defined by claim 4 characterized in that the compound of the Formula (I) is selected from the group consisting of 2,4-diamino-5-(2'-hydroxyethyl)oxytoluol and 2,4-diamino-5-ethoxytoluol or a physiologically acceptable acid addition salt thereof.
Claim 9
Dependent Claim
28 words
A composition as defined by claim 4 characterized in that the coupler substance of formula (I) is contained in a quantity of from 0.01 to 3.0% by weight.
Claim 10
Dependent Claim
30 words
A composition as defined by claim 4, characterized in that the developer substance is selected from the group consisting of 1,4-diaminobenzene, 2,5-diaminotoluol, 2,5-diaminoanisole, 2,5-diaminobenzylalcohol, 2,5-diaminophenylethanol, 2-methyl-4-aminophenol, 3-methyl-4-aminophenol, 2-aminomethyl-4-aminophenol and 4-aminophenol.
Claim 11
Dependent Claim
42 words
A composition as defined by claim 4, characterized in that it additionally contains a known coupler substance, which is selected from the group consisting of resorcin, 4-chlororesorcin, 2-methylresorcin, 2-amino-4-(2'-hydroxyethyl)aminoanisole, 2,4-diaminophenylethanol, 2,4-diaminophenoxyethanol, 2,4-diaminoanisole, 2,4-diaminophenetole, 1,5-dihydroxytetraline, m-aminophenol, 3-amino-2-methylphenol, 3-amino-6-methylphenol, 4-hydroxy-1,2-methylenedioxybenzene, 4-amino-1,2-methylenedioxybenzene, 4-(2'-hydroxyethyl)-amino-1,2-methylenedioxybenzene, 3,5-diamino-2,6-dimethoxypyridine, 3,5-diamino-2,6-bis-(2'-hydroxyethyl)oxypyridine.
Claim 12
Dependent Claim
33 words
A composition as defined by claim 5, characterized in that the compound of formula (I) is selected from the group consisting of 2,4-diamino-5-(2'-hydroxyethyl)oxytoluol and 2,4-diamino-5-ethoxytoluol or a physiologically acceptable acid addition salt thereof.
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