α‐ d ‐Glucofuranose and α‐ d ‐allofuranose diacetonides and silyl ether of α‐ d ‐glucofuranose diacetonide in dithiophosphorylation reactions

α‐ d ‐Glucofuranose and α‐ d ‐allofuranose diacetonides react with 2,4‐diorganyl 1,3,2,4‐dithiadiphosphetane‐2,4‐disulfides to form optically active dithiophosphonates in 78–81% yields, which are transformed into the corresponding ammonium salts in 90–97% yields by the treatment of n ‐hexadecylamine. The S ‐silyldithiophosphonate was prepared in 93% yield by the reaction of 2,4‐bis(butoxyphenyl) 1,3,2,4‐dithiadiphosphetane‐2,4‐disulfide with silyl ether of α‐ d ‐glucofuranose diacetonide. One of the salts obtained possesses antibacterial activity against Staphylococcus aureus ATCC 6538‐P.