PROCESS FOR DYEING IN THE PRESENCE OF OXIDATION BASES COMPRISING AT LEAST ONE SULFONIC, SULFONAMIDE, SULFONE, AMID OR ACID GROUP AND A METAL CATALYST, DEVICE AND READY-TO-USE COMPOSITION
申请人:L'OREAL
公开号:US20160143826A1
公开(公告)日:2016-05-26
The present invention relates to a process for dyeing human keratin fibres, in which use is made of one or more metal catalysts and a composition (A) comprising: (a) at least 10% by weight of one or more fatty substances, (b) one or more oxidation bases of formula (I) or (II), the addition salts thereof, solvates thereof and mixtures thereof: Formula (I), Formula (II) (c) one or more chemical oxidizing agents other than atmospheric oxygen. The invention also relates to a multi-compartment device and to a composition comprising all of the above-mentioned ingredients.
2‐Amino‐5‐nitrobenzolsulfonamide 1–4 werden zu entspr. Diaminen 12–15 reduziert und anschließend durch Diazotierung und Hypophosphit‐Behandlung in 5‐unsubstituierte Derivate 16–19 überführt. ‐ Hg(II)‐EDTA‐Dehydrierung von 16–18 liefert tricyclische Benzothiadiazine 22–24, die der Pipecoline 15/19 die Sulfonylaminale 20/21.