in benzene heating to 50°C with an excess of sulfur; 2,4-digerma-1,3-dithietane is characterized by comparison to an authentic sample; metadithiophosphonate is characterized by NMR;

in benzene heating to 50°C with an excess of sulfur; 2,4-digerma-1,3-dithietane is characterized by comparison to an authentic sample; metadithiophosphonate is characterized by NMR;