Yh. Gu et al., Diastereoselective synthesis of cyclic alpha-fluoromethylidenephosphonatesusing alpha-fluoroallenephosphonate as dienophile, CHEM COMMUN, (5), 2000, pp. 395-396
The dimerization of alpha-fluoroallenephosphonate and its Diels-Alder react
ion with various dienes provide a diastereoselective route to cyclic and bi
cyclic alpha-fluorovinylphosphonates.