The Synthesis and Reactions of Thio- and Seleno-phosphonic and -phosphinic Acids

1 Introduction 2 The Synthesis of Monothio- and Monoseleno-Phosphonic and -Phosphinic Acids and their Derivatives 3 Interconversions of the Monothio(or Seleno) -Phosphonic and -Phosphinic Acids and Their Derivatives 4 Syntheses and Reactions of Di- and Tri-Thio(Seleno)-Phosphonic Acids and Dithio(Seleno)Phosphinic Acids Keywords: synthesis of monothio- and monoseleno-phosphonic and -phosphinic acids; through Friedel Crafts-like arylation; through Michaelis–Arbuzov and Michaelis–Becker reactions; phosphorus carbon bonded compounds; by chalcogen–halogen exchange; by phosphorus–phosphorus bond clevage; by chalcogen exchange; interconversions of monothio(or seleno) -phosphonic and -phosphinic acids; formation of acid