R. Ruzziconi et al., A facile approach to alkyl- and aryl-substituted 3-furylphosphonates basedon ceric ammonium nitrate-promoted radical reactions, SYNLETT, (5), 2001, pp. 703-705
Regioselectively substituted diethyl 3-furylphosphonates have been prepared
in good yields (55-90%) under very mild conditions by a simple two-step pr
ocedure based on eerie ammonium nitrate-promoted oxidative addition of beta
-ketophosphonates to vinylic acetates followed by acid catalyzed Pall-Knor
r cyclization reactions.