A new class of ferrocene-based 1,2-bis(phosphanes) possessing only planar chirality

Citation
G. Argouarch et al., A new class of ferrocene-based 1,2-bis(phosphanes) possessing only planar chirality, EUR J ORG C, (16), 2000, pp. 2893-2899
Citations number
32
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
ISSN journal
1434-193X → ACNP
Issue
16
Year of publication
2000
Pages
2893 - 2899
Database
ISI
SICI code
1434-193X(200008):16<2893:ANCOF1>2.0.ZU;2-7
Abstract
Chiral 1,2-bis(phosphanes) 13, devoid of individual chiral centers, have be en prepared in three steps from chiral sulfoxide 10. Their corresponding rh odium complexes were used as catalysts for asymmetric hydrogenation, giving high ee values (less than or equal to 95%) in the reduction of itaconic ac id or its ester. A cationic rhodium complex involving coordination of two m olecules of 13b and one molecule of oxygen has been isolated and its crysta l structure established.