PREPARATION OF α-FLUORO-α,β-UNSATURATED ESTERS VIA TWO CARBON HOMOLOGATION OF ESTERS
In the presence of diisobutyl aluminium hydride, esters react with an anion derived from (EtO)2P(O)CFHC(O)OEt to give the title compounds in good yields.The scope of this method and the factors which influence the stereochemistry of the products are discussed.