Hair dye containing aminopyrazole derivatives as well as pyrazole derivatives
AssigneeWella Aktiengesellschaft
InventorsHans Neunhoeffer, Stefan Gerstung, Thomas Clausen, Wolfgang R. Balzer
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Abstract
The composition for oxidative dyeing of hair contains at least one coupler and 0.010 to 3.0 percent by weight of at least one developer selected from the group consisting of aminopyrazole derivatives of the formula (I): ##STR1## wherein R is selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms; n=2 or 3; and physiologically tolerated, water-soluble salts thereof. The developer and coupler substances are present in the composition in a total amount of from 0.1 to 5.0 percent. New pyrazole derivative compounds are also part of the invention.
Claims13
Pyrazole derivative of the formula (II) ##STR4## wherein R.sup.1 is selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms;
- and
- wherein n=2 and X=is an amino group or n=3 and X is selected from the group consisting of nitro and amine groups.
Composition for oxidative dyeing of hair containing at least one coupler and 0.01 to 3.0 percent by weight of at least one developer, wherein said at least one developer is selected from the group consisting of aminopyrazole derivatives of the formula (I):
- ##STR5## wherein R is selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms;
- n=2 or 3;
- and physiologically tolerated, water-soluble salts thereof;
- wherein said at least one coupler is selected from the group consisting of resorcinol, 4-chlororesorcinol, 4,6-dichlororesorcinol, 2-methylresorcinol, 2-amino-4-(2'-hydroxyethyl)aminoanisole, 2,4-diaminobenzyl alcohol, 2,4-diaminophenylethyl alcohol, m-phenylenediamine, 2,4-diamino-5-(2'-hydroxyethoxy)toluene, 5-amino-2-methylphenol, 5-amino-4-fluoro-2-methylphenol, 5-amino-2-ethyl-4-fluorophenol, 5-amino-4-methoxy-2-methylphenol, 2,4-diaminophenoxyethanol, 4-amino-2-hydroxy-phenoxyethanol, 1-napthol, 3-aminophenol, 3-amino-2-methylphenol, 4-hydroxy-1,2-methylenedioxybenzene, 4-amino-1,2-methylenedioxybenzene, 4-(2'-hydroxyethyl)amino-1,2-methylenedioxybenzene, 2,4-diaminophenetole, 2,4-diamino-5-methylphenetole, 4-hydroxyindole, 3-amino-5-hydroxy-2,6-dimethoxypyridine and 3,5-diamino-2,6-dimethoxypyridine;
- and
- wherein said at least one developer and said at least one coupler are present in a total amount of from 0.1 to 5.0 percent.
Pyrazole derivative of the formula (II) ##STR6## where R.sup.1 selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms.
Composition for oxidative dyeing of hair containing at least one coupler and 0.01 to 3.0 percent by weight of at least one developer, wherein said at least one developer is selected from the group consisting of aminopyrazole derivatives of the formula (I):
- ##STR7## wherein R is selected from the group consisting of hydrogen and alkyl groups having one to four carbon atoms;
- and physiologically tolerated, water-soluble salts thereof;
- wherein said at least one coupler is selected from the group consisting of resorcinol, 4-chlororesorcinol, 4,6-dichlororesorcinol, 2-methylresorcinol, 2-amino-4-(2'-hydroxyethyl)aminoanisole, 2,4-diaminobenzyl alcohol, 2,4-diaminophenylethyl alcohol, m-phenylenediamine, 2,4-diamino-5-(2'-hydroxyethoxy)toluene, 5-amino-2-methylphenol, 5-amino-4-fluoro-2-methylphenol, 5-amino-2-ethyl-4-fluorophenol, 5-amino-4-methoxy-2-methylphenol, 2,4-diaminophenoxyethanol, 4-amino-2-hydroxy-phenoxyethanol, 1-napthol, 3-aminophenol, 3-amino-2-methylphenol, 4-hydroxy-1,2-methylenedioxybenzene, 4-amino-1,2-methylenedioxybenzene, 4-(2'-hydroxyethyl)amino-1,2-methylenedioxybenzene, 2,4-diaminophenetole, 2,4-diamino-5-methylphenetole, 4-hydroxyindole, 3-amino-5-hydroxy-2,6-dimethoxypyridine and 3,5-diamino-2,6-dimethoxypyridine;
- and
- wherein said at least one developer and said at least one coupler are present in a total amount of from 0.1 to 5.0 percent.
Dependencies are inferred from the claim text.