Novel fluoran compounds and production and use thereof
申请人:TAOKA CHEMICAL CO., LTD
公开号:EP0176161A1
公开(公告)日:1986-04-02
A fluoran compound of the formula:
wherein R1 is C3-C13 secondary alkyl with respect to the carbon atom bonded to the nitrogen atpm, R2 is C1-C4 primary alkyl, C3-C4 alkenyl or C3-C4 alkoxyalkyl, R3 and R4 are, same or different, hydrogen, halogen, C1-C4 alkyl or trifluoromethyl, R5 is hydrogen, methyl, ethyl or halogen, which is useful as a color former and develops deep black with a developer.
A method of producing N,N-disubstituted aminophenols of the general formula
wherein R1 and R2 are the same or different and each represents a saturated or unsaturated aliphatic hydrocarbyl, cycloalkyl, aralkyl,
the phenyl ring of which may be further substituted, alkoxyalkyl, or a cycloalkylalkyl, except that R1 and R2 are not simultaneously methyl and R' represents hydrogen, halogen, nitro, cyano, alkyl or alkoxy, which comprises reacting an aminophenol of general formula
wherein R3 represents hydrogen or R1, and R' is as defined above, with an organic halide species of general formula R2X wherein R2 is as defined above and X is halogen under aqueous acidic conditions with the periodic addition of an acid trapping agent in such a way that continuous monitoring of pH is not required.
Highly Reactive, General, and Long-Lived Catalysts for Coupling Heteroaryl and Aryl Chlorides with Primary Nitrogen Nucleophiles
作者:Qilong Shen、Shashank Shekhar、James P. Stambuli、John F. Hartwig
DOI:10.1002/anie.200462629
日期:2005.2.18
US5908961A
申请人:——
公开号:US5908961A
公开(公告)日:1999-06-01
[EN] DYE COMPOSITION COMPRISING AT LEAST ONE PARTICULAR LIPOPHILIC META-AMINOPHENOL COUPLER IN A MEDIUM RICH IN FATTY SUBSTANCES, PROCESSES AND DEVICES<br/>[FR] COMPOSITION DE COLORATION COMPRENANT AU MOINS UN COUPLEUR MÉTA-AMINOPHÉNOL LIPOPHILE DANS UN MILIEU RICHE EN CORPS GRAS, PROCÉDÉS ET DISPOSITIFS
申请人:OREAL
公开号:WO2014118093A2
公开(公告)日:2014-08-07
The present invention relates to a composition for dyeing keratin fibres, comprising one or more fatty substances, one or more surfactants, one or more oxidation bases, one or more particular couplers of particular meta-aminophenol type with a logP of greater than or equal to 0.9, and one or more basifying agents, the fatty substance content in the dye composition representing in total at least 10% by weight relative to the total weight of the said composition. The invention also relates to a dyeing process using such a composition, and also to devices suitable for performing such a process.