The reaction of elemental selenium with sulfur ylides stabilized by electron-withdrawing substituent(s) affords a facile method for generation of functionalized selenocarbonyl compounds, which can be effectively trapped by Diels-Alder reaction with 1,3-dienes.
Dimethylsulfonium fluoren-9-ide: solution structure and dynamic behaviour of a semi-stabilised sulfonium ylide
作者:Varinder K. Aggarwal、Steffen Schade、Brian Taylor
DOI:10.1039/a704010e
日期:——
The semi-stabilised ylide, dimethylsulfonium fluoren-9-ide, has been studied by variable temperature NMR and found to adopt a conformation in which the filled orbital on carbon is perpendicular to the lone pair on sulfur. The rotational barrier (ΔG‡) around the ylide C–S bond is found to be 42.0 ± 1.0 kJ mol–1.
Reactions of triplet carbenes with sulfides and disulfides: ylide vs. radical formation
作者:A. Alberti、D. Griller、A. S. Nazran、G. F. Pedulli
DOI:10.1021/ja00271a035
日期:1986.5
XCIV.—Influence of poles and polar linkings on the course pursued by elimination reactions. Part VIII. The methylenic and paraffinic degradations of sulphones