Mjp. Harger et C. Pater, Phosphonamidothioic acids as thiophosphonylating agents: stereochemistry of reactions of N-tert-butyl-P-phenylphosphonamidothioic acid with alcohols, CHEM COMMUN, (10), 1999, pp. 931-932
Enantiopure PhP(S)(OH)NHBut reacts with alcohols in CH2Cl2 to give PhP(S)(O
H)OR (R = Me, Pr-i, Bu-t); reaction is completely non-stereospecific with (
BuOH)-O-t and largely so with (PrOH)-O-i and very low concentrations of MeO
H, pointing to the involvement of a thiometaphosphonate (PhPOS) intermediat
e.