Penta- and hexa-m-phenylcyclophosphites and their derivatives

New representatives of an original class of crown ethers--cyclopenta- and c yclohexaresorcinolamidophosphites-were synthesized using the molecular asse mblage technique. Their thio and oxo derivatives were obtained as well as t he rhodium (I) complexes. A macrocycle containing both tri- and pentavalent phosphorus atoms 2-was synthesized H-1 and P-31 NMR spectroscopy data sugg ested the higher conformational flexibility of phosphite macrocycles as com pared to phosphate ones. (C) 2000 John Wiley & Sons, Inc.