Novel Synthesis of Macrocylic Systems Containing Phosphorus and Sulfur

Abstract

Macrocyclic systems containing phosphine. phosphoryl or thiophosphoryl functions in the ring demonstrate high ability to complex metal ions Complexed structures of this type show interesting Fatalytic properties and can be used in homogenous and heterogenous catalysis^1,2] Macrocyclic compounds containg phosphorus are also useful as complexing agents for ammonlum salts. anions. etc 3,4] Generally three types of reactions are used to synthesize phosphorus containing macrocyclic compounds the cyclocondensation, the ring opening reaction and the reaction with metal as a matrix^5]. We have devoloped a new procedure for the synthesis of the title systems of different sizes and of different P and S contents It is based on a double conjugate addition of dithiolates to divlnyl phosphine oxides and sulfides and makes use of the so-called “cesium effect”.