However, a structure of available carbon nucleophiles to trap the catalytically generated oxy-allyl cation has been limited to highly nucleophilic ones. Herein, we report the Bronsted acid-catalyzed alpha-arylation of ketones employing less explored phenolic nucleophiles as carbon nucleophiles in the oxy...
ChemInform Abstract: Reaction of Silyl Enol Ethers with Arenediazonium Salts. Part 1. . alpha.-Arylation of Ketones.alkylation, arylation, dealkylation, dearylation, C゛cylation, olefinationthiophene derivativesketones (benzene compounds)ChemInform is a weekly Abstracting Service, delivering concise ...
Highly selective methods forα-alkenylation andα-arylation of ketones via palladium-or nickel-catalyzed cross coupling. Negishi E.I,Akiyoshi K. Chemistry Letters . 1987
An improved catalyst for the asymmetric arylation of ketone enolates A new catalyst system for the enantioselective alpha-arylation of ketones is reported. This catalyst, prepared from Pd(2)(dba)(3) and a bulky dialkylphosph... T Hamada,A Chieffi,J Ahman,... - 《Journal of the American ...
The mechanism is proposed to proceed through initial ortho-arylation of α-chloroketone 183 onto amidine 182, ring closing through a seven-membered rhodium metallocycle, and elimination of ammonia. Amidine 182 can be directly substituted with ketones, olefins, and heterocycles, while the arene on ...
2-Pyridinylβ-ketones were identified as new efficient ligands for CuI-catalysedN-arylation of aliphatic amines at room temperature with great selectivity and substrate scope tolerance. D Wang,D Ke - 《Chemical Communications》 被引量: 70发表: 2009年 2-Pyridinyl beta-ketones as new ligands for ...
alpha-Bromoketones undergo selenium dioxide oxidation to yield reactive 2-oxo-2-arylacetyl bromides that are trapped by aryl-1,2-diamines, 1,2-aminophenol ... M Nagaraj,S Sathiyamoorthy,M Boominathan,... - 《Journal of Heterocyclic Chemistry》 被引量: 10发表: 2013年 PYRROLO(1,2,3-ALP...
ChemInform Abstract: Ruthenium(II)-Catalyzed Regioselective Synthesis of Allyl Ketones from Alkynes and Their Silver(I)-Catalyzed Hydroarylation into Î... ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To acce...
The unique properties of room temperature ionic liquids such as non-volatility, nonflammability, and, in many cases, high thermal and chemical stability ha... D Weuster-Botz - 《Chemical Record》 被引量: 133发表: 2010年 Metal enolates of alpha-CF3 ketones: theoretical guideline, direct gene...
alkylation, arylation, dealkylation, dearylation, C‐acylation, olefinationDirect α-allylation of ketones catalyzed by a palladium(0)-diphosphine system took place employing O-allylisourea as the allylating reagent under neutral conditions at room temperature in DMF....