The regioselective biphasic hydrogenation of trans-cinnaldehyde by meta sulfonatophenyl-diphenylphosphine (TPPMS) Ru(II) and Os(II) species. The influence of ionic strength, ligand tensoactivity and metal nature in the selective production of the unsaturated alcohol

Authors
Lopez-Linares, F Gonzalez, MG Paez, DE
Citation
F. Lopez-linares et al., The regioselective biphasic hydrogenation of trans-cinnaldehyde by meta sulfonatophenyl-diphenylphosphine (TPPMS) Ru(II) and Os(II) species. The influence of ionic strength, ligand tensoactivity and metal nature in the selective production of the unsaturated alcohol, J MOL CAT A, 145(1-2), 1999, pp. 61-68
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
13811169 → ACNP
Volume
145
Issue
1-2
Year of publication
1999
Pages
61 - 68
Database
ISI
SICI code
1381-1169(19990908)145:1-2<61:TRBHOT>2.0.ZU;2-6
Abstract
The hydrogenation of trans-cinnamaldehyde was studied, using as catalyst pr ecursor the complexes MCl2(CH3CN)(4), where M = Ru(II) and Os(II), stabiliz ed with the water-soluble ligand, meta-sulfonatophenyl-diphenylphosphine in its sodium salt form, (TPPMS). The Ru(II) system showed better activity an d selectivity than its Os(II) analogue, under biphasic catalysis. For the r uthenium system an enhancement of the selectivity to the unsaturated alcoho l was obtained by increasing substrate to catalyst ratio, salt concentratio n and ligand tensoactivity. (C) 1999 Elsevier Science B.V. All rights reser ved.