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Journal of the Mexican Chemical Society
Print version ISSN 1870-249X
Abstract
VARGAS-MALVAEZ, Edgar; PIMENTEL, Georgina; TRUJILLO, Gustavo and MARTIN, Erika. Synthesis of Rhodium (I) Complexes with Mono and Dithiolato Ligands: Application in Catalytic Hydroformylation of Olefins. J. Mex. Chem. Soc [online]. 2007, vol.51, n.1, pp.33-38. ISSN 1870-249X.
The thiols,1-phenylethanothiol 1 and 2,4-pentanodithiol 2 were synthesised and used to prepare binuclear rhodium species 3, 4 of the type [Rh2(µ-L)n(cod)2] (L = 1, n = 2; L = 2, n = 1; cod = 1,5cyclooctadiene). NMR and FAB+ mass spectrometry data are consistent with a binuclear structure for the species. These complexes, plus PPh3 or diphosphines (dppp, dppb), were used as catalytic precursors for the hydroformylation of styrene under mild conditions. Fairly good activities and regioselectivities were achieved for catalytic system 3/ PPh3.
Keywords : Thiolato ligands; sulphur ligands; binuclear complex; rhodium complex; homogeneous catalysis; hydroformylation.