Facile Exchange of Phosphoryl Oxygen by Sulfur and Selenium in Teriary Phosphine Oxides

摘要

It is known that tertiary phoshine oxides can be converted into their sulfides by heating either with silver sulfide [1] or with phosphorus pentasulfide [2] at 110-150 deg C. Tertiary phosphine selenides can be prepared by treatment of phosphine oxides with selenium in the presence of potassium dihydrophosphate at 270-370 deg C [3].