Journal of Fluorine Chemistry p. 169 - 174 (1994)
Update date:2022-08-17
Topics:
Seifert, Frank U.
Roeschenthaler, Gerd-Volker
1,1,1,3,3-Pentafluoropropane-2-one (3) (pentafluoroacetone) is readily obtained from 1,1,1,3,3,3-hexafluoropropane-2-ol by dehydrofluorination using lithium bis(trimethylsilyl)amide, followed by isomerization of 1,1,3,3,3-pentafluoropropene-2-ol.Pentafluoroacetone adds trimethylsilylphosphites to yield α-trimethylsiloxyphosphonates which, upon thermolysis, furnish (Z)-1,3,3,3-tetrafluoropropenyldialkylphosphites and (Z)-1,3,3,3-tetrafluoro-2-trimethylsiloxypropene.
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