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.
A Facile Access to 2-CF<sub>3</sub>-Imidazo[1,2-<i>a</i>]pyridines<i />
作者:Valentine G. Nenajdenko、Arcady L. Krasovsky、Elizabeth S. Balenkova
DOI:10.1055/s-2002-33106
日期:——
A new simple and efficient way to 2-CF3-imidazo[1,2-a]pyridines and 2-CF3-imidazo[1,2-a]quinolines by the reaction of 1,1,1-trifluoro-4-(phenylsulfonyl)but-3-ene-2,2-diols 1a,b with various 2-aminopyridines is described. The cyclization reaction proceeds diastereospecifically under mild conditions in water.
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、A. M. Moiseev、V. G. Nenajdenko、E. S. Balenkova
DOI:10.1023/a:1015303712382
日期:——
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作者:A. L. Krasovsky、V. G. Nenajdenko、E. S. Balenkova
DOI:10.1023/a:1012728922156
日期:——
A new method for the synthesis of aminovinyl trifluoromethyl ketones was developed. The method is based on the reactions of 4-sulfonyl-1,1-trifluorobut-3-ene-2,2-diols with various alkyl-, aryl-, dialkyl-, and alkylarylamines. The stereochemistry of the compounds obtained was studied.
Reaction of 2-Aminothiazoles and Their Benzo- and Naphtho Derivatives with β-Sulfonyltrifluoromethylvinyldiols
作者:A. L. Krasovsky、A. M. Moiseev、V. G. Nenajdenko、E. S. Balenkova