F. Benayoud et Gb. Hammond, AN EXPEDIENT SYNTHESIS OF (ALPHA,ALPHA-DIFLUOROPROP-2-YNYL)PHOSPHONATE ESTERS, Chemical communications, (12), 1996, pp. 1447-1448
Pfitzner-Moffatt oxidation of diethyl alpha-hydroxyalkynephosphonate 4
, prepared by nucleophilic attack of diethyl phosphite on the correspo
nding aldehyde, followed by DAST fluorination of the resulting alpha-k
etophosphonate 8, results in the smooth formation of alpha,alpha-diflu
oroalkynephosphonate 7.