Achim Gsponer, B. Milani, G. Consiglio
Nov 1, 2002
Citations
0
Influential Citations
10
Citations
Journal
Helvetica Chimica Acta
Abstract
Diaquapalladium(2+) trifluoromethanesulfonates modified with (4R,4′S)- or (4S,4′S)-2,2′-bis(4-benzyl-4,5-dihydrooxazole) (Cs- and C2-ligands) produce isotactic poly(1-oxo-2-phenylpropane-1,3-diyl) through copolymerization of styrene with carbon monoxide. However, the same meso-catalyst in the presence of the free ligand leads to prevailingly syndiotactic growth of the copolymer, whereas the optically active catalyst, when used in the presence of the free enantiomeric ligand, gives an atactic copolymer.