Our studies of the synthetic utility of fluor0 olefins have focused on the use of an extremely versatile building block in the preparations of a-fluorinated ketones, a group of compounds which reflect increasing interest in the molecular design concerning the biological activitie~.'- ~ However, no general stereocontrolled synthetic approach to chiral monofluorinated synthons, for a key process to achieve the above purpose, has been reported except a few ...
