CHIRAL AND ACHIRAL PHOSPHINE-PHOSPHITE LIGANDS IN PD(II)-CATALYZED ALTERNATING COPOLYMERIZATION OF PROPENE WITH CO

Authors
NOZAKI K YASUTOMI M NAKAMOTO K HIYAMA T
Citation
K. Nozaki et al., CHIRAL AND ACHIRAL PHOSPHINE-PHOSPHITE LIGANDS IN PD(II)-CATALYZED ALTERNATING COPOLYMERIZATION OF PROPENE WITH CO, Polyhedron, 17(7), 1998, pp. 1159-1164
Citations number
26
Categorie Soggetti
Chemistry Inorganic & Nuclear",Crystallography
Journal title
Polyhedron → ACNP
ISSN journal
02775387
Volume
17
Issue
7
Year of publication
1998
Pages
1159 - 1164
Database
ISI
SICI code
0277-5387(1998)17:7<1159:CAAPLI>2.0.ZU;2-3
Abstract
In addition to (R,S)-BINAPHOS, several related phosphine-phosphite lig ands have been prepared and their use in Pd(II) catalyzed asymmetric a lternating copolymerization of propene with carbon monoxide was examin ed. Small changes of the ligand substituents caused drastic changes of the stereo regularity of the product, which reveals that not only the electronic bias of (R,S)-BINAPHOS but also its steric demand is essen tial to produce completely isotactic copolymer from propene and CO in highly enantioselective fashion. (C) 1998 Elsevier Science Ltd. All ri ghts reserved.