Palladium-Catalyzed [1,3]-O-to-C Rearrangement of Pyrans toward Functionalized Cyclohexanones
摘要:
Functionalized cyclohexanones are prepared from cyclic enol ethers via a Pd-catalyzed [1,3]-O-to-C rearrangement reaction. alpha-Arylketones are generated with excellent diastereocontrol when basic phosphine ligands are used. In contrast, a Lewis acid is required to promote the rearrangement of the alkyl-substituted enol ether systems.
Palladium-Catalyzed [1,3]-O-to-C Rearrangement of Pyrans toward Functionalized Cyclohexanones
作者:Julien C. R. Brioche、Thomas A. Barker、David J. Whatrup、Michael D. Barker、Joseph P. A. Harrity
DOI:10.1021/ol102213s
日期:2010.11.5
Functionalized cyclohexanones are prepared from cyclic enol ethers via a Pd-catalyzed [1,3]-O-to-C rearrangement reaction. alpha-Arylketones are generated with excellent diastereocontrol when basic phosphine ligands are used. In contrast, a Lewis acid is required to promote the rearrangement of the alkyl-substituted enol ether systems.