Db. Berkowitz et al., SYNTHESIS OF (ALPHA,ALPHA-DIFLUOROALKYL)PHOSPHONATES BY DISPLACEMENT OF PRIMARY TRIFLATES, Journal of organic chemistry, 58(23), 1993, pp. 6174-6176
Simple primary alkyl triflates and those derived from several monosacc
harides are cleanly displaced by diethyl (lithiodifluoromethyl)phospho
nate to provide the corresponding (alpha,alpha-difluoroalkyl)phosphona
tes in minutes at -78-degrees-C.