Photoinduced Platinum-Catalyzed Reductive Allylation of α-Diketones with Allylic Carbonates
作者:Junpei Shimosato、Masaya Sawamura、Yusuke Masuda
DOI:10.1021/acs.orglett.4c00091
日期:2024.3.15
A unique process for the photoinduced platinum-catalyzed reductiveallylation of α-diketones with allyliccarbonates has been developed. This allylation reaction was found to proceed selectively at the more electron-deficient carbonyl group of the diketone to afford an α-keto homoallylic alcohol. Such products could be further derivatized by transformation of the remaining carbonyl group. A mechanistic
Palladium-Catalyzed C-Allylation of Benzoins and an NHC-Catalyzed Three Component Coupling Derived Thereof: Compatibility of NHC- and Pd-Catalysts
作者:Raphaël Lebeuf、Keiichi Hirano、Frank Glorius
DOI:10.1021/ol801644f
日期:2008.10.2
A large range of benzoins was successfully applied as C-nucleophiles in the palladium-catalyzed allylic alkylation with several allyl acetates, resulting in functionalized tertiary homoallylic alcohols. A number of unsymmetrical benzoins can be coupled with high levels of regio- and chemoselectivity. Finally, the challenging compatibility of free N-heterocyclic carbenes with a palladium catalyst has been utilized in a number of metal- and organocatalyzed three-component coupling reactions.
Assembly of functionalized α-hydroxy carbonyl compounds via combination of N-heterocyclic carbene and Pd catalysts
作者:Jinmei He、Shibing Tang、Shouchu Tang、Jian Liu、Yongquan Sun、Xinfu Pan、Xuegong She
DOI:10.1016/j.tetlet.2008.11.032
日期:2009.1
Functionalized a-hydroxy carbonyl compounds were prepared from various aldehydes and allylic acetates via a multicomponent reaction, which were catalyzed by N-heterocyclic carbene and Pd catalysts in one pot. (c) 2008 Elsevier Ltd. All rights reserved.