Fluorovinyl phosphate

Reactions of Phosphoric Acids and their Derivatives.- Addition of alcohols (ROH) to diethyl [2,2-difluoro-l-(trifluoromethyl)vinyl] phosphate yields the ether esters (64). Other fluorovinyl phosphates (65 R = F or CF, R = hexyl, cyclohexyl, or Ph) are cleaved by LiAlH /CuBr or by LiAlH /Br2 in THF at -78° to give the ketones (66) the same esters are also cleaved by... 

Huorinated etiolates are generally difficult to form. Ishihara and coworkers used fluorovinyl phosphates, which can be prepared from a-fluoro ketones and sodium diethyl phosphite. Reaction of these fluorinated enol phosphates with a reagent prepared from lithium aluminum hydride (LiAIH4> and cop-per(II) bromide, zinc(II) chloride, tin(II) chloride or bromine afforded the enolate (Scheme 34).The reaction of the enol phosphate with the reagents mentioned above suggests that the metal cation of the enolate is an aluminum species, though its actual structure is not known at present. 

---