PhCF(2)Cl suffered readily one-electron reduction with SmI2 to give Ph
CF(2) radical and chloride ion. The resulting PhCF(2) radical was furt
her reduced with SmI2 to PhCF(2)SmI(2) which reacted with electrophile
such as Me(3)SiCl. The initially formed PhCF(2) radical could be trap
ped by olefin or acetylene before it was reduced to PhCF(2)SmI(2).