Process for the preparation of phenyl- and thienyl-chlorophosphane derivatives

摘要

Organic chlorophosphanes of the formula II <IMAGE> (II) in which R1=an aromatic or heterocyclic radical and R2=an aliphatic radical or Cl are prepared by reacting organic phosphorus oxychlorides of the formula I <IMAGE> (I) in which R1 and R2 have the meaning mentioned above with triphenylphosphane (C6H5)3P at an elevated temperature. The organic chlorophosphanes II are, in the main, intermediates in various specialized fields, such as the pharmaceuticals, plant protection, dyestuffs and polymers sectors.