catalytic amount of iron(II) triflate, TIPS-protected peroxides bearing primary, secondary, and tertiary C-H sites undergo chemoselective thioetherification of remote C-H bonds with diaryl disulfides. The reaction demonstrates a broad substrate scope and functional group tolerance without the use of any noble metal additives. Mechanistic experiments suggest that the reaction proceeds through 1,5-H atom
Composition for dyeing keratin fibers, comprising at least one diamino-N,N-dihydropyrazolone derivative, at least one coupler, and at least one surfactant
申请人:Saunier Jean-Baptiste
公开号:US20060277692A1
公开(公告)日:2006-12-14
Disclosed herein is a composition for dyeing keratin fibers, for example, human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolones and the addition salts thereof, at least one coupler, and at least one surfactant chosen from (C
8
-C
30
)alkyl ether carboxylic acids and salts thereof, (C
12
-C
30
)alkyl polyglucosides, monoglycerolated surfactants, and polyglycerolated surfactants. Also disclosed herein is a method for dyeing keratin fibers comprising applying a composition in accordance with the present disclosure to the keratin fibers. The compositions and methods of the present disclosure may makes it possible to obtain fast coloration of keratin fibers that is resistant to light and/or to washing.
[EN] PROCESS FOR TREATING KERATIN FIBERS USING AN ANHYDROUS COMPOSITION COMPRISING A COMPOUND OF AZOMETHINE TYPE COMPRISING TWO PYRAZOLOPYRIDINE UNITS AND AN AQUEOUS COMPOSITION<br/>[FR] PROCÉDÉ DE TRAITEMENT DE FIBRES KÉRATINIQUES À L'AIDE D'UN COMPOSÉ ANHYDRE, COMPRENANT UN COMPOSÉ DE TYPE AZOMÉTHINE, DEUX UNITÉS DE PYRAZOLOPYRIDINE ET UN COMPOSÉ AQUEUX.
申请人:OREAL
公开号:WO2017220676A1
公开(公告)日:2017-12-28
The subject of the present invention is a process for treating keratin fibers using an anhydrous dye composition comprising at least one compound of azomethine type comprising two pzrazolopyridine units of formula (I) or (II) and an aqueous composition. The invention also relates to a kit comprising an anhydrous dyeing composition and an aqueous composition.
POSITIVE RESIST COMPOSITION AND PATTERN FORMING METHOD USING THE SAME
申请人:Tsuchihashi Toru
公开号:US20100248146A1
公开(公告)日:2010-09-30
A positive resist composition comprising (A) a resin which contains all of the repeating units represented by formulae (I) to (III), and becomes soluble in an alkali developer by the action of an acid, and (B) a compound capable of generating an acid upon irradiation with an actinic ray or radiation; and a pattern forming method using the composition. A represents a group capable of decomposing and leaving by the action of an acid, each R
1
independently represents hydrogen or a methyl group, R
2
represents a phenyl group or a cyclohexyl group, m represents 1 or 2, and n represents an integer of 0 to 2. By virtue of this construction, a resist composition ensuring high resolution, good pattern profile, sufficient depth of focus, little defects after development, and sufficiently high plasma etching resistance is provided.
Peroxyketals, process for their production, their use in polymerisation reactions, in moulding compositions and mouldings
申请人:AKZO N.V.
公开号:EP0000405A1
公开(公告)日:1979-01-24
Peroxyketals of the formula
wherein R' represents a tert. alkyl group having 4-12 carbon atoms and R2 a branched or a nonbranched alkyl group having 1-12 carbon atoms or a substituted or unsubstituted cycloalkyl group having 5-12 carbon atoms; their preparation from R'OOH and alkoxyacetones; their use in chemical reactions under the influence of free radicals, more particularly in curing unsaturated polyester resin moulding compounds; and the mouldings obtained.