D. Bouvet et al., Short stereoselective route to gamma-CF3 allylic alcohols: Rearrangements with creation of quaternary CF3-substituted carbons, J ORG CHEM, 65(7), 2000, pp. 2104-2107
A concise preparation of tetrasubstituted hindered functionalized CF3-olefi
ns 2-7 from corresponding enol ether 3 is described. Geometrically pure gam
ma-CF3,gamma-alkyl allylic alcohol thus prepared could undergo Claisen-type
rearrangements and provide, in good yields, carboxylic esters and amides c
ontaining a beta- quaternary CF3-substituted carbon.