A facile and efficient protocol for the α-benzoyloxylation of β-keto sulfides is presented. This methodology provides a step-economical, mild and practical access to highly functionalized α-O-benzoyloxy substituted β-keto sulfides, including those with quaternary carbons, which are not easily obtained through currently available methods.
Dianions of β-keto-sulphoxides. A new general synthesis of vinyl ketones
作者:Paul A. Grieco、Dena Boxler、Chester S. Pogonowski
DOI:10.1039/c39740000497
日期:——
The dianion of the β-keto-sulphoxide (1) can be alkylated exclusively on the γ-carbon atom with a variety of alkyl halides; the resultant α-phenylsulphinyl ketones (3) undergo ready elimination of benzenesulphenic acid providing a newgeneral route to alkyl vinylketones.
Durman, John; Grayson, J.Ian; Hunt, Paul G., Journal of the Chemical Society. Perkin transactions I, 1986, p. 1939 - 1946
作者:Durman, John、Grayson, J.Ian、Hunt, Paul G.、Warren, Stuart
DOI:——
日期:——
Selective and mild oxidation of sulfides to sulfoxides by oxodiperoxo molybdenum complexes adsorbed onto silica gel
作者:Fabiana Batigalhia、Marcelo Zaldini-Hernandes、Antônio G Ferreira、Ivani Malvestiti、Quezia B Cass
DOI:10.1016/s0040-4020(01)00969-3
日期:2001.11
Aliphatic and aromatic sulfides, ketosulfides, sulfinyl acids and esters, and olefinic sulfides were oxidized to sulfoxides using oxodiperoxo complexes of molybdenum coated on silica gel (150 Å pore size) in very high yields. Complete chemoselectivity was observed for the oxidation of all functional sulfides. Sulfones were, however, the main products of the reaction when the complexes were not coated