A new diphosphane derived from carbohydrates as an effective ligand for asymmetric hydrogenation

Authors
Pamies, O Net, G Ruiz, A Claver, C
Citation
O. Pamies et al., A new diphosphane derived from carbohydrates as an effective ligand for asymmetric hydrogenation, EUR J INORG, (9), 2000, pp. 2011-2016
Citations number
85
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
14341948 → ACNP
Issue
9
Year of publication
2000
Pages
2011 - 2016
Database
ISI
SICI code
1434-1948(200009):9<2011:ANDDFC>2.0.ZU;2-C
Abstract
A novel chiral diphosphane derived from D-(+)-xylose, 3,5-dideoxy-1,2-O-iso propylidene-3,5-bis(diphenylphosphanyl)- alpha-D-xylofuranose (Xylophos), a nd its cationic cyclooctadiene rhodium(I) complex have been synthesised and characterised. Excellent results were obtained with Xylophos in the asymme tric Rh-catalysed hydrogenation of acrylic acid derivatives tee's up to 98% ). Hydrogenation results are explained in terms of the structure of the pre catalyst [Rh(cod) (Xylophos)]+BF4-.