sodium hydrogencarbonate; trichlorophosphate in water; N,N-dimethyl-formamide POCl3 slowly added to DMF and Ru(pd)3 in DMF added dropwise with stirring, react. mixt. warmed to room temp. and stirred for 4 h, ice/water slurry NaHCO3 slowly added and react. mixt. stirred for 14 h; soln. evapd. to dryness, residue dissolved in methanol and passed through silica gel column, using methanol as eluent, solvent. evapd.; elem. anal.;