The first examples of hydrophosphorylation reactions of vinyl
ethers of a series of furans are reported. Regiospecific addition of
secondary phosphines, phosphine sulfides, or phosphine selenides
to 2-[(vinyloxy)methyl]furan, 2-[1-(vinyloxy)butan-2-yl]furan,
or 2-[(vinyloxy)methyl]tetrahydrofuran proceeds
under UV irradiation to give the corresponding anti-Markovnikov
adducts in 72-99% yield.
ethers - phosphines - phosphorylation - radical
reaction - photochemistry