Clickable coupling of carboxylic acids and amines at room temperature mediated by SO<sub>2</sub>F<sub>2</sub>: a significant breakthrough for the construction of amides and peptide linkages
作者:Shi-Meng Wang、Chuang Zhao、Xu Zhang、Hua-Li Qin
DOI:10.1039/c9ob00699k
日期:——
carboxylic acids with amines was developed for the synthesis of a broad scope of amides in a simple, mild, highly efficient, robust and practical manner (>110 examples, >90% yields in most cases). The direct click reactions of acids and amines on a gram scale are also demonstrated using an extremely easy work-up and purification process of washing with 1 M aqueous HCl to provide the desired amides in
Unexpected Heterocyclization of Electrophilic Alkenes by Tetranitromethane in the Presence of Triethylamine. Synthesis of 5-Nitroisoxazoles
作者:Yulia A. Volkova、Elena B. Averina、Dmitry A. Vasilenko、Kseniya N. Sedenkova、Yuri K. Grishin、Per Bruheim、Tamara S. Kuznetsova、Nikolai S. Zefirov
DOI:10.1021/acs.joc.8b03086
日期:2019.3.15
A novel reaction of tetranitromethane with electrophilic alkenes in the presence of triethylamine affording substituted 5-nitroisoxazoles is described. Triethylamine reacts with tetranitromethane to generate N-nitrotriethylammonium and trinitromethanide. This process provides the heterocyclization of electrophilic alkenes. A variety of α,β-unsaturated aldehydes, ketones, esters, amides, phosphonates
[EN] NITROGEN-CONTAINING ORGANOSILICON COMPOUND, METHOD OF MANUFACTURE, AND METHOD OF TREATING SURFACES<br/>[FR] COMPOSE ORGANOSILICIE CONTENANT DE L'AZOTE, PROCEDE DE PRODUCTION ET PROCEDE DE TRAITEMENT DE SURFACES
申请人:DOW CORNING TORAY SILICONE
公开号:WO2004087719A1
公开(公告)日:2004-10-14
A new nitrogen-containing organosilicon compound contains tertiary amine groups and carbonyl groups wherein the tertiary amine groups are selected from R1R2N- (where R1 and R2 are the same or different univalent hydrocarbon groups of 1-15 carbon atoms), alicyclic amino groups, or heterocyclic amino groups containing in their rings one or more tertiary amine groups.
Inverse latex of anionic polyelectrolytes in silicone oils; cosmetic use thereof
申请人:SOCIETE D'EXPLOITATION DE PRODUITS POUR LES
INDUSTRIES CHIMIQUES, S.E.P.P.I.C.
公开号:EP1932515A1
公开(公告)日:2008-06-18
Composition comprising an oil phase, an aqueous phase, at least one emulsifying system of water-in-oil (W/O) type, optionally at least one emulsifying system of oil-in-water (O/W) type, in the form of an inverse latex comprising from 10% to 80% by mass and preferably from 20% to 70% by mass and most preferably from 30% to 60% by mass, of a linear partially or totally salified anionic polyelectrolyte, with wherein in that said oil phase comprises a silicone oil or a mixture of silicone oils; its use to thicken and or to emulsify cosmetic, dermopharmaceutical or pharmaceutical compositions.