Copolymerization of olefins and CO catalyzed by new chiral arsine–oxazoline palladium complexes
Resource
Journal of Organometallic Chemistry 690 (21-22): 4920-4925
Journal
Journal of Organometallic Chemistry
Journal Issue
690
Pages
4920-4925
Date Issued
2005
Date
2005
Author(s)
Abstract
Coordination of a chiral arsine-oxazoline ligand (As-N) toward (COD)PdCl2 and (COD)PdMeCl leading to (As-N)PdCl2 (3) and (As-N)PdMeCl (4) were reported. Both 3 and 4 were characterized by spectroscopic and X-ray single crystal diffraction methods. Treatment of 4 with AgBF 4 in the presence of acetonitrile resulted in the formation of [(As-N)PdMe(CH3CN)]BF4 (6). Complex 6 catalyzed the copolymerization of CO and olefin, but in low conversions. In fact, the palladium black and [(As-N)2Pd](BF4)2 (7) were formed from the copolymerization processes, which may explain the lower catalytic activity of 6. Crystal structure of 7 was also determined. © 2005 Elsevier B.V. All rights reserved.
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journal article
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