Ei. Goryunov et al., CATALYTIC PHOSPHORYLATION OF POLYFLUOROALKANOLS - 16 - SYNTHESIS AND STEREOCHEMISTRY OF O-(ALPHA-POLYFLUOROALKYLBENZYL) PHENYLPHOSPHONOCHLORIDATES, Russian chemical bulletin, 47(9), 1998, pp. 1728-1731
Phosphorylation of alpha-polyfluoroalkylbenzyl alcohols by an excess o
f phenylphosphonic dichloride in the presence of Mg or CaCl2 as the ca
talyst gives O-(alpha-polyfluoroalkylbenzyl) phenylphosphonochloridate
s (63-79% yield). The reaction proceeds stereoselectively, and the pho
sphonochloridates obtained are mixtures of two diastereomers with pred
ominance (approximately by 10%) of one of them.