Abstract: The previously unreported title compounds have been prepared via reaction of diethyl hydrogen phosphite, sodium, and 2-propyn-1-01 or 2-butyne-1, Cdiol, followed by acid hydrolysis. Titrations of the acids with tetramethylammonium hydroxide have been analyzed in terms of acid dissociation constants which are reported for 1 M ( tetramethy1ammonium chloride) ionic strength and 25 “. The 31P nmr spectra of the acids ...