Regioselective and stereoselective alternating copolymerization of carbon monoxide with functional olefins

Enantioselective, alternating copolymerizations of carbon monoxide with ome ga -undecylenic acid, ethyl acrylate, and butyl acrylate were carried out f or the first time with a palladium catalyst modified by 1,4:3,6-dianhydro-2 ,5-dideoxy-2,5-bis(diphenylphosphino)-L-iditol. Optical rotation, elemental analysis, and H-1 NMR, C-13 NMR, and IR spectra showed that the copolymers were optically active, isotactic, alternating poly(1,4-ketone) or poly(spi roketal) structures. (C) 2001 John Wiley & Sons, Inc.