Interaction of perfluorinated α-fluorosulfatocarbonyl compounds with nucleophilic reagents
摘要:
alpha-Perfluorosulfatoperfluorocarbonyl compounds interact with alkaline metals halogenides to form the corresponding alpha-halo derivatives as a result of the direct nucleophilic substitution of the FSO3 group. Through the action of halogenide anions on perfluorinated alpha,beta-bis-fluorosulfatocarbonyl compounds, substitution by halogen of the FSO3 group in the alpha-position to the carbonyl takes place. However, the FSO3 group in the beta-position is cleaved, which allows alpha-substituted beta-dicarbonyl derivatives to be obtained.
Reaction of fluorosulfonyloxypentafluoroacetone in the presence of alkali metal fluorides
作者:S. R. Sterlin、E. A. Avetisyan
DOI:10.1007/s11172-009-0174-4
日期:2009.6
Abstract2-Fluorosulfonyloxytetrafluoropropionyl fluoride (3) is the product of isomerization of fluorosulfonyloxypentafluoroacetone (1). In the presence of CsF at low temperatures compound 3 forms 2-fluorosulfonyloxyperfluoropropoxy anion, and at ∼25°C CsF catalyzes the decomposition of compounds 1 and 3 with the formation of trifluoropyruvoyl fluoride isolated as cyclodimer.
Perfluoropropylene oxide in reactions with electrophilic reagents
作者:I. L. Knunyants、V. V. Shokina、E. I. Mysov
DOI:10.1007/bf00926132
日期:1973.12
Synthesis and rearrangement of fluorosulfonoxypentafluoroacetone
作者:I. P. Kolenko、T. I. Filyakova、A. Ya. Zapevalov、E. P. Mochalina、L. S. German、V. R. Polishchuk
DOI:10.1007/bf00924854
日期:1979.3
Synthesis and reactivity of polyfluorinated fluorosulfatocarbinols in the presence of bases
作者:N. I. Delyagina、V. M. Rogovik、V. F. Cherstkov、S. R. Sterlin、L. S. German
DOI:10.1007/bf00961240
日期:1991.7
Compounds CF3CR(OH)CF2OSO2F (I) (R = MeO, Ph) were synthesized by the reaction of alpha-(fluorosulfato)pentafluoroacetone with MeOH or C6H6/AlCl3. In the presence of bases compound (I), depending on the reaction conditions, forms either cyclic sulfates or products of their isomerization - substituted alpha-fluorosulfato-trifluoropropionic acid fluorides which are capable of nucleophilic substitution of FSO3 groups in reaction with the nucleophiles.
Polyfluorinated enol acetates
作者:Yu. V. Zeifiman、S. A. Postovoi、L. S. German
DOI:10.1007/bf00699163
日期:1994.1
The synthesis of polyfluorinated enol acetates has been performed by reductive dechlorination of chloropolyfluoroketones with zinc in Ac2O. Under these conditions, hexafluoroacetone is preferably reduced at the carbonyl group.