作者:Dietmar Seyferth、Wolfgang Tronich、William E. Smith、Steven P. Hopper
DOI:10.1016/s0022-328x(00)88179-6
日期:1974.3
Phenyl(trihalomethyl)mercurycompounds react with highly halogenated ketones [(CF3)2CO, CF3COCF2Cl, (CF2Cl)2CO, CF2ClCOCFCl2], aldehydes (n-C3F7CHO, CCl3CHO) and acid chlorides (CF3COCl, CCl3COCl) to add CX2 to the CO bond, giving oxiranes. In the case of hexachloroacetone and n-C3F7OCF(CF3)CF2OCF(CF3)C(O)F, ketones were obtained instead. In the reactions with the acid chlorides, ketones also were
The embodiments provide Compound KC-8, N-1-[3-(oxycodone-6-enol-carbonyl-methyl-amino)-2,2-dimethyl-propylamine]-arginine-glycine-malonic acid, or acceptable salts, solvates, and hydrates thereof. The present disclosure also provides compositions, and their methods of use, where the compositions comprise a prodrug, Compound KC-8, that provides controlled release of oxycodone. Such compositions can optionally provide a trypsin inhibitor that interacts with the enzyme that mediates the controlled release of oxycodone from the prodrug so as to attenuate enzymatic cleavage of the prodrug.
Catalytic Enantioselective Addition of an Allyl Group to Ketones Containing a Tri-, a Di-, or a Monohalomethyl Moiety. Stereochemical Control Based on Distinctive Electronic and Steric Attributes of C–Cl, C–Br, and C–F Bonds
作者:Diana C. Fager、KyungA Lee、Amir H. Hoveyda
DOI:10.1021/jacs.9b08443
日期:2019.10.9
products enantioselectively but also in some cases there are hardly any instances of a catalytic enantioselectiveaddition of a carbon-based nucleophile (e.g., one enzyme-catalyzed aldol addition involving trichloromethyl ketones, and none with dichloromethyl, tribromomethyl, or dibromomethyl ketones). The approach is scalable and offers an expeditious route to the enantioselectivesynthesis of versatile
Untersuchungen an β-Sultonen, 3. Mitt. Zur Darstellbarkeit von 1,2-Oxathietan-2,2-dioxiden (β-Sultonen) und deren Reaktionen mit Nucleophilen
作者:Wolfgang Hanefeld、Detlef Kluck
DOI:10.1002/ardp.19813140911
日期:——
Die geringe Zahl isolierbarer β‐Sultone mit ringständigen Wasserstoffatomen wurde um einige Verbindungen erweitert und Reaktionen der β‐Sultone mit Nucleophilen zu β‐Hydroxyethansulfonylderivaten durchgeführt.
Reductive alkylation of perfluorocarboxylic acid esters with CCl3F or CCl4 and synthesis of higher linear perfluoroketones
作者:Yu.V. Zeifman、S.A. Postovoi
DOI:10.1016/j.jfluchem.2003.11.008
日期:2004.12
Barbier-type reductive alkylation of perfluorocarboxylicacidesters (I) with CFCl3 and activated Al was successfully performed to give α,α-dichloroperfluoroketones (II). A similar reaction of CF3COOEt with CCl4 and Al provided a convenient synthesis of CF3COCCl3. Ketones (II) were fluorinated further with SbF5 to form higher linear perfluoroketones (IX). An alternative approach to the synthesis of