Tf. Herpin et al., PREPARATION OF SOME NEW ANOMERIC CARBOHYDRATE DIFLUOROMETHYLENE-PHOSPHONATES VIA PHOSPHONYL RADICAL-ADDITION TO GEM-DIFLUOROENOL ETHERS, Chemical communications, (5), 1996, pp. 613-614
Generation of a phosphonyl radical either from diethyl phosphite, or d
iethyl (phenylselenyl)phosphonate in conjunction with tributylstannane
, in the presence of a carbohydrate gem-difluoroenol ether provides a
new route to anomeric difluoromethylenephosphonates; in the course of
these reactions, some unusual stereochemical effects are observed.