The fluoroallylboration of aldehydes with B-(3,3-difluoroallyl)diisopinocampheylborane, which was prepared via the hydroboration of 1,1-difluoroallene, provides chiral 2,2-gem-difluorinated homoallylic alcohols in good yields and 91-97% ee.
Synthesis of γ-fluoroalkylated allylic amines derivatives via palladium-catalyzed Overman rearrangement
A Pd-catalyzed Overman rearrangement of α-fluoroalkylated allylic trichloroacetimidates has been developed. This reaction allows for an efficient synthesis of γ-fluoroalkylated allylic amine derivatives with excellent regio- and stereo-selectivities under mild conditions.