Palladium-Catalyzed Allylic Alkylation of Simple Ketones with Allylic Alcohols and Its Mechanistic Study
作者:Xiaohong Huo、Guoqiang Yang、Delong Liu、Yangang Liu、Ilya D. Gridnev、Wanbin Zhang
DOI:10.1002/anie.201403410
日期:2014.6.23
Allylicalcohols were directly used in Pd‐catalyzed allylicalkylations of simpleketones under mild reaction conditions. The reaction proceeded smoothly at 20 °C by the concerted action of a Pd catalyst, a pyrrolidine co‐catalyst, and a hydrogen‐bonding solvent, and does not require any additional reagents. A computational study suggested that methanol plays a crucial role in the formation of the
Ketone enolates as nucleophiles in palladium-catalysed allylic alkylation
作者:Jean-Claude Fiaud、Jean-Luc Malleron
DOI:10.1039/c39810001159
日期:——
Lithium enolates from pentan-3-one, cyclo-hexanone, acetophenone, and mesityl oxide react with some representative (acyclic and cyclic) allylic acetates in a palladium-catalysedalkylation in good yields and under mild conditions; the substitution is shown to proceed with retention of configurations.
Organic photochemistry. Part VII. The photolytic reactions of α-halogeno-ketones in solutions of olefins
作者:J. A. Barltrop、A. Thomson
DOI:10.1039/j39680000155
日期:——
Irradiation of mixtures of chloroacetone and cyclohexene with light (λ > 280 mµ) gave acetone, chlorocyclohexane, bicyclohex-2-enyl (II), cyclohexylacetone, and cyclohex-2-enylacetone. Similar mixtures of saturated and unsaturated ketonic adducts were derived from the illumination of mixtures of chloroacetone and pent-1-ene p-menth-1-ene, the trimethylstyrene (XVIII) and 2,3-dihydropyran. 2-Chlorocyclohexanone
作者:Reetz, Manfred T.、Walz, Peter、Huebner, Friedhelm、Huettenhain, Stefan H.、Heimbach, Horst、Schwellnus, Konrad
DOI:——
日期:——
Diastereoselective hydroxylation of titanium enolates with tert-butylhydroperoxide
作者:M. Schulz、R. Kluge、M. Schüßler、G. Hoffmann
DOI:10.1016/0040-4020(95)00090-u
日期:1995.3
The oxidation of titanium enolates with tert-butylhydroperoxide has been investigated and the main reaction products, the corresponding alpha-hydroxyketones 7a-f, isolated. The highest diastereoselectivities (>95% de) were obtained, when titanium enolates of camphor 2d-6d were employed. For comparison, the oxidation of the enolates with dimethyldioxirane(1) is discussed.