Synthesis, structure, and transition metal complexes of amphiphilic 1,5-diaza-3,7-diphosphacyclooctanes

Abstract

Amphiphilic 1,5-diaza-3,7-diphosphacyclooctanes have been synthesized by condensation of hydrophobic primary arylphosphines, formaldehyde, and functionalized hydrophilic primary arylamines (5-aminoisophthalic acid and the sodium salt of sulfanilic acid). These compounds readily form P,P-chelate complexes with [PtCl2(cod)], which are stable in water. The catalytic activity of palladium catalysts with 1,5-diaza-3,7-diphosphacyclooctane ligands was studied in the copolymerization of ethylene and carbon monoxide. © 2006 Wiley Periodicals, Inc.