Health & Environmental Research Online (HERO)


Print Feedback Export to File
6666908 
Journal Article 
Xantphos as cis- and trans-chelating ligand in square-planar platinum(II) complexes. Hydroformylation of styrene with platinum-xantphos-tin(II)chloride system 
Petocz, G; Berente, Z; Kegl, T; Kollar, L; , 
2004 
Yes 
Journal of Organometallic Chemistry
ISSN: 0022-328X
EISSN: 1872-8561 
ELSEVIER SCIENCE SA 
LAUSANNE 
1188-1193 
WOS:000220549200013 
Platinum(II) complexes of a diphosphine ligand xantphos (4,5-bis(diphenylphosphino)-9,9-dimethyl-xanthene) have been synthesised and characterised by NMR, conductivity and catalytic investigations. In addition to the parent complex cis-PtCl2(xantphos), trans-platinum(II) complexes of square-planar geometry containing xantphos as a trans-chelating ligand can be obtained due to the large bite angle of the ligand. The platinum-xantphos tin(II)chloride system acts as active hydroformylation catalyst in the hydroformylation of styrene resulting in high chemo- and regio-selectivities of up to 99.8% and 88%, respectively. (C) 2004 Elsevier B.V. All rights reserved.