andNoboruSDOSTetrahedron LettersRyu,I,Murai,S,Hatayama,Y,Sonoda,N.A Ketone-enone Conversion via The Reaction of Enol Silyl Ethers with DDQ. Tetrahedron Letters . 1978A Ketone-enone Conversion via The Reaction of Enol Silyl Ethers with DDQ. Ryu,I,Murai,S,Hatayama,Y,Sonoda,N. Tetrahedron ...
The boron-mediated ketone-ketone aldol reaction The first examples of the directed, boron-mediated aldol reaction between different ketones are presented. Transformation of a variety of ketones to their ... KM Cergol,P Turner,MJ Coster - 《Cheminform》...
Total Synthesis of (−)-Dolastatrienol An intramolecular Heck reaction furnished the tricyclic skeleton and a challenging methylenation completed the synthesis of the target.Lai To Leung... TL Lai,P Chiu - 《Chemistry – An Asian Journal》 被引量: 3发表: 2015年 ...
Lithium enolates can be generated by reaction of silyl enol ethers with BunLi in tetrahydrofuran at −78°C. Superior yields of α-allyl ketones result from addition of allyltriethylammonium bromide and tetrakis(triphenylphosphine)palladium(0) at −78°C and subsequent warming to 25°C. The ...
To gain insight into the mechanism of the reaction, we performed deuterium-labeling experiments. First, the reaction of 1ag was carried out in isopropanol-d8 to probe the keto–enol tautomerization of the substrate (Fig. 6a). In the absence of allylic alcohol, no H/D exchange at the α-...
Define ketone group. ketone group synonyms, ketone group pronunciation, ketone group translation, English dictionary definition of ketone group. n chem the functional group of ketones: a carbonyl group attached to the carbon atoms of two other organic gr
Synthesis of 1,4-diketones by the reaction of silyl enol ether with silver oxide. Regiospecific formation of silver(I) enolate intermediates Saegusa. Synthesis of 1,4-Diketones by the Reaction of Silyl Enol Ethers with Ag 2 O. A Regiospecific Formation of Silver (I) Enolate Intermediates. ....
PHOTOREACTIONS OF SILYL ENOL ETHERS OF α-TETRALONE AND α-INDANONE WITH ELECTRON DEFICIENT OLEFINS; THE PHOTO-MICHAEL REACTION Michler's ketone-sensitized photoreactions of silyl enol ethers of α-tetralone and α-indanone with electron deficient olefins gave photocycloadducts, hydrolyses of which lea...
α-Iodoketones (Part 2).1 Reaction of Enol Acetates with N-Iodosuccinimide2 As illustrated in three instances, enol acetates react with N-iodosuccinimide to yield the corresponding α-iodoketone (or aldehyde) and N-acetylsuccinimide. Iodine monochloride can be substituted for N-iodosuccinimide,...
Diphenyliodonium triflate 1a reacts with the lithium enolates of cyclic ketones 2 (ring size = 5 – 8), in the presence of stoichiometric quantiites of copper cyanide, to afford the corresponding α-phenylated ketones 3 or α,α′-diphenylated ketones 4. Reaction of diphenyliodonium triflate...