Ambidextrous ‘hybrid’ fluorinated zwitterionic geminis: self-assembly in both organic and aqueous media
作者:Andrey Peresypkin、Caroline Clavel、Fredric M. Menger
DOI:10.1016/j.mencom.2007.03.009
日期:2007.3
'Hybrid' fluorinated zwitterionic gemini surfactants have been shown to self-assemble in both organic and aqueous media thus being an example of ambidextrous amphiphiles. As a result of these properties, these compounds are attractive targets both from the academic standpoint and in industrial applications.
Provided is a method of efficiently producing an epoxy compound from an allyl ether having an aromatic ring under mild conditions by using hydrogen peroxide as an oxidizing agent without using an organic solvent. The method of producing an epoxy compound comprises reacting an allyl ether having an aromatic ring with hydrogen peroxide to epoxidize a carbon-carbon double bond of an allyl group to thereby produce a corresponding epoxy compound having an aromatic ring, wherein water only is used as a solvent without using an organic solvent, and a tungsten compound, and a tertiary amine and/or a quaternary ammonium salt, are used as a reaction catalyst.
The invention relates to an aqueous hair cleansing agent comprising the following components (A), (B), (C), and water and having a pH of 2 to 5 at 25° C. when diluted 20-fold by mass with water:
(A) an internal olefin sulfonate,
(B) an organic solvent selected from the group consisting of the following (B1) to (B5):
(B1) an aromatic alcohol,
(B2) a polypropylene glycol,
(B3) a N-alkyl pyrrolidone,
(B4) an alkylene carbonate,
(B5) a lactone or a cyclic ketone, and
(C) an organic carboxylic acid selected from the group consisting of a hydroxymonocarboxylic acid and dicarboxylic acid.
Cyclic glyceryl sulfate: a simple and versatile bio-based synthon for the facile and convergent synthesis of novel surface-active agents
作者:Zhaoyu Fan、Matthieu Corbet、Yan Zhao、Floryan De Campo、Jean-Marc Clacens、Marc Pera-Titus、Pascal Métivier、Limin Wang
DOI:10.1016/j.tetlet.2013.04.068
日期:2013.7
efficiently prepared in two steps from glycerol. It was shown to react efficiently with primary, secondary as well as tertiary amines to afford either the corresponding anionic or zwitterionic surface-activeagents.
[EN] NOVEL METHOD TO MANUFACTURE SURFACE ACTIVE COMPOUNDS SUCH AS SULFATE BETAINE<br/>[FR] NOUVEAU PROCÉDÉ DE FABRICATION DE COMPOSÉS TENSIO-ACTIFS TELS QUE LE SULFATE BÉTAÏNE
申请人:RHODIA OPERATIONS
公开号:WO2013067915A1
公开(公告)日:2013-05-16
The present invention relates generally to novel methods of preparing compounds such as sulfate betaines by reacting an amine with a cyclic (poly)glycerol sulphate (CGS) compound and the compound such as sulfate betaine products obtained by using the same.