The reaction of N-nitroso compounds with 2,4-bis (4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide. New aspects of the destruction of the N-nitroso function.

In connection with work on 2,4-bis(4-methoxyphenyl)-1,3,2,4-dithiadiphosphetane-2,4-disulfide (I), used for thiation of carbonyl compounds, different kinds of compounds with semipolar bondings have been reacted with I, especially C- and N-nitroso compounds. C-Nitroso compounds give azoxy and azo compounds. N-Nitroso compounds give new phosphorus ring systems, depending on the starting material, and the N-nitroso function is destroyed. An elimination of HNO has been observed where there was resonance stabilization in the imine formed.