Regioselective Oxidative Chlorination of Arenols Using NaCl and Oxone
作者:Muhammet Uyanik、Naoto Sahara、Kazuaki Ishihara
DOI:10.1002/ejoc.201801063
日期:2019.1.10
A practical and efficient chlorination of naphthols and phenols was developed using transient chlorinating species generated in situ from inexpensive sodium chloride and Oxone as a Cl source and oxidant, respectively, under mild conditions.
[EN] 1-HEXYL-1H-PYRAZOLE-4,5-DIAMINE HEMISULFATE, AND ITS USE IN DYEING COMPOSITIONS<br/>[FR] HÉMISULFATE DE 1-HEXYL-1H-PYRAZOLE-4,5-DIAMINE ET SON UTILISATION DANS DES COMPOSITIONS DE COLORATION
申请人:PROCTER & GAMBLE
公开号:WO2013122990A1
公开(公告)日:2013-08-22
1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, as represented in formula (IX-a), and its use in oxidative dyeing composition. This pyrazole salt was found to combine good stability as raw material and good shade intensity with a range of common couplers when formulated in hair dyeing composition.
1-Hexzl-1H-Pyrazole-4,5-Diamine Hemisulfate, and Its Use in Dyeing Compositions
申请人:The Procter & Gamble Company
公开号:US20130212810A1
公开(公告)日:2013-08-22
1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, as represented in formula (IX-a), and its use in oxidative dyeing composition. This pyrazole salt was found to combine good stability as raw material and good shade intensity with a range of common couplers when formulated in hair dyeing composition.
Described herein is a yellow imidazolium chromophore having a structure according to Formula V.
本文描述了一种具有如下V式结构的黄色咪唑铵色团。
[EN] HAIR COLOR COMPOSITIONS COMPRISING STABLE VIOLET-BLUE TO BLUE IMIDAZOLIUM DYES<br/>[FR] COMPOSITIONS DE COLORATION DES CHEVEUX COMPRENANT DES COLORANTS D'IMIDAZOLIUM STABLES VIOLET-BLEU AU BLEU
申请人:NOXELL CORP
公开号:WO2018053034A1
公开(公告)日:2018-03-22
Disclosed are hair color compositions comprising novel stable violet-blue to blue imidazolium azo compounds that have a simplified chromophore and high relative solubility in aqueous systems, and that are surprisingly stable under the conditions of use and storage. These compositions are useful for dyeing fibers such as hair and other keratinaceous materials. The compositions can optionally include an oxidant. Also disclosed are methods for dying keratin fibers including human hair using the disclosed hair color compositions. The methods optionally include an ability to alter the electronic charge in situ of the hair color compositions