Diazadiphosphetidine. VII. Neue Diazadiphosphetidin-oxide und -oxid-sulfide

Diazadiphosphetidines. VII. New Diazadiphosphetidine Oxides and Oxide Sulfides By reaction of phosphoric tris(methylamide) with tris(dimethylamino)phosphane and tris(diethylamino)phosphane, the diazadiphosphetidine oxides V and I , as well as VI and II are obtained, respectively. With elemental sulfur these compounds form the diazadiphosphetidine oxide sulfides VI and III , as well as VIII and IV , respectively. The n.m.r. spectra of the compounds II — VII are reported and discussed.