S,S-DI-2-PYRIDYL DITHIOLOPHOSPHATE AS A KEY INTERMEDIATE IN THE PHOSPHORYLATION BY OXIDATION-REDUCTION CONDENSATION

Abstract
A key intermediate of phosphorylation by oxidation-reduction condensation which is useful for the preparation of various nucleotides was studied by means of 31P NMR using methanephosphonate as a model compound. The intermediate, S,S-di-2-pyridyl methanedithiolophosphonate, was formed quite rapidly by the reaction of methanephosphonic acid and triphenylphosphine-d15-2,2′-dithiodipyridine (PyS)2 in anhydrous pyridine and could be stored in solution.