Synthesis of Cyclic Enol Ethers from Alkenyl-β-dicarbonyl Compounds
作者:Helena M. C. Ferraz、Myrian K. Sano、Marta R. S. Nunes、Graziela G. Bianco
DOI:10.1021/jo011089+
日期:2002.6.1
the cyclofunctionalization of eleven differently substituted alkenyl-beta-dicarbonyl compounds, employing three electrophilic reagents, namely, iodine, p-methoxyphenyltellurium trichloride, and phenylselenenyl bromide. The reactions occur through the enolic form of the substrates, to afford the corresponding iodo-, telluro-, or selenocyclic enolethers. Substrates bearing trisubstituted double bonds