Perfluoroglycidyl ethers of the formula ##STR1## are prepared by epoxidation of a perfluoroallyl ether of the formula CF.sub.2 .dbd.CFCF.sub.2 OR.sub.F. The glycidyl ethers are useful as monomers for preparing polymers which are useful as stable oils and greases. Polymers containing functional moieties which provide crosslinking or cure sites are stable elastomeric materials useful as sealants, caulks, and fabricated objects.
Nine perfluoroacylfluorides underwent halogen exchange when treated with anhydrous lithium halides to give acyl chlorides, bromides and iodides in high yields. The temperature dependence of this reaction is described. In the reaction with perfluorodiacyl fluoride, the diacyl halides possessing different acyl halide-groups were also produced. Of the alkaline metal salts used halogen exchange was successful
An asymmetric tertiary carbon center with a tetrafluoroethylene (–CF 2 CF 2 –) fragment: Novel construction method and application in a chiral liquid crystalline molecule
An asymmetric carbon center with a tetrafluoroethylene fragment can be efficiently constructed via a highly enantioselective conjugate addition reaction of various arylboronic acids with β-(bromotetrafluoroethyl)-α,β-unsaturated ketones. This system can be successfully applied to an enantiomerically enriched tetrafluoroethylenated liquid crystalline molecule.