Polyfluoroenolates, R.sup.1 CX.dbd.CR.sup.2 OM (R.sup.1 is F or a perfluoroalkyl group, R.sup.2 is a perfluoroalkyl group, X is F, Cl or Br), are easily formed at good yields by dehydrohalogenation reaction of polyfluoroalcoholates, R.sup.1 CXY--CR.sup.2 HOM (Y is F, Cl or Br), with a strong base such as, e.g., an alkyl metal or an aryl metal. A typical example of the polyfluoroenolates is lithium pentafluoro-2-propenolate which is obtained from hexafluoro-2-propanolate. A polyfluoroenolate of the above general formula can be converted into another polyfluoroenolate having an alkyl or aryl group in place of the halogen X by reaction with an alkyl or aryl metal.
Bekker,R.A. et al., Journal of Organic Chemistry USSR (English Translation), 1975, vol. 11, p. 2415 - 2417
作者:Bekker,R.A. et al.
DOI:——
日期:——
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.
Bekker,R.A. et al., Journal of Organic Chemistry USSR (English Translation), 1975, vol. 11, p. 1356 - 1360