Jc. Yuan et al., Regio- and stereoselective alternating copolymerization of carbon monoxidewith functionalized olefins, J MOL CAT A, 174(1-2), 2001, pp. 63-68
Enantioselective alternating copolymerization of carbon monoxide with omega
-undecylenic acid (Ua), ethyl acrylate (Ea), and butyl acrylate (Ba) were
carried out for the first time using palladium catalyst modified by 1,4:3,6
-dianhydro-2,5-dideoxy-2,5-bis(diphenylphosphino)-L-iditol (DDPPI). Optical
rotation, elemental analysis, spectra of H-1-NMR, C-13-NMR, and IR showed
that our copolymers were optically active, isotactic, alternating poly( 1,4
-ketone) or poly(spiroketal) structure. (C) 2001 Elsevier Science B.V. All
rights reserved.