Phosphine chalcogenides
This chapter gives an account on the newer developments on the synthesis and reactivity of phosphine chalcogenides, mainly oxides and sulfides. A few new synthetic methods are shown, followed by preparations utilizing simple P-reagents, from among P–C coupling reactions, and their variations represent a hot topic. The modification of P-chalcogenides including deoxygenations are also discussed. Optically active P-species and different complexes form a usual part of this chapter.