Title:
2,4-DIAMINO-1,3,5-TRIMETHOXYBENZENE, MANUFACTURE AND HAIR DYE COMPOSITION
Document Type and Number:
Japanese Patent JPS6485908
Kind Code:
A
Abstract:
NEW MATERIAL: 2,4-Diamino 1,3,5-trimethoxybenzene represented by the formula and its acid addition salt. USE: An oxidation dye precursor for dyeing a keratin fiber, especially hair, above all, a coupler advantageously usable in combination with a para type oxidation dye precursor in an aqueous medium permissible as a cosmetic. PREPARATION: 2,5-Dnitro-1,3,5-trimethoxybenzene is catalytically reduced in water, a lower alcohol, a glycol and/or a glycol ether, as necessary, in the presence of a catalyst such as palladium or nickel deposited on a support such as carbon, calcium carbonate, barium carbonate, alumina or silica gel at 50-200 deg.C temperature under a hydrogen pressure to afford the compound represented by the formula. The compound is capable of satisfying all of desired requirements (stability of dyed hair to rays of light, washing, unfavorable weather and perspiration or nontoxicity, etc.) as the coupler.
Inventors:
ARETSUKUSU YUNINO
JIYAN JIYATSUKU BANDENBOTSUSHI
HERUBE BOROUIAKU
JIERAARU RANGU
JIYAN JIYATSUKU BANDENBOTSUSHI
HERUBE BOROUIAKU
JIERAARU RANGU
Application Number:
JP15659888A
Publication Date:
March 30, 1989
Filing Date:
June 24, 1988
Export Citation:
Assignee:
OREAL
International Classes:
A61K8/33; A61K8/00; A61K8/34; A61K8/35; A61K8/40; A61K8/41; A61K8/49; A61Q5/00; A61Q5/10; C07C43/20; C07C211/50; C07C213/02; C07C217/00; C07C217/84; C09B53/00; C09B53/02; D06P1/645; D06P3/08; A61K; C07C; (IPC1-7): A61K7/06; C09B53/02
Attorney, Agent or Firm:
Akira Asamura (2 outside)