Oxidation of beta-(trifluoroacetyl)vinyl sulfides afforded a series of the corresponding sulfones. The reactions of sulfones with various alkyl- and arylthiols were studied. These reactions provide the basis for a new procedure for the synthesis of beta-(trifluoroacetyl)vinyl sulfides.
Oxidation of beta-(trifluoroacetyl)vinyl sulfides afforded a series of the corresponding sulfones. The reactions of sulfones with various alkyl- and arylthiols were studied. These reactions provide the basis for a new procedure for the synthesis of beta-(trifluoroacetyl)vinyl sulfides.
Diels–Alder reactions of β-trifluoroacetylvinylsulfones
作者:Arkady L Krasovsky、Valentine G Nenajdenko、Elizabeth S Balenkova
DOI:10.1016/s0040-4020(00)00980-7
日期:2001.1
Diels–Alder reactions of β-trifluoroacetylvinylsulfones with 1,3-dienes in CH2Cl2 afforded corresponding mono- and polycycloadducts. A possibility of stereo- and regioselective cycloaddition was investigated. Elimination of sulfonyl group from cycloadducts leads to α,β-unsaturated trifluoromethylketones in good yields.
作者:A. L. Krasovsky、V. G. Nenajdenko、E. S. Balenkova
DOI:10.1023/a:1015816217777
日期:——
The reactions of vinyl sulfides with p-sulfonylvinyl trifluoromethyl ketones afforded CF3-containing 3,4-dihydro-2H-pyrans. An attempt to synthesize 1,1,1-trifluoro-3-(methylthio)but-3-en-2-one resulted in its dimerization into a CF3-containing 3,4-dihydro-2H-pyran.