A new class of chiral diphosphines having planar chirality

Authors
Reetz, MT Beuttenmuller, EW Goddard, R Pasto, M
Citation
Mt. Reetz et al., A new class of chiral diphosphines having planar chirality, TETRAHEDR L, 40(27), 1999, pp. 4977-4980
Citations number
28
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
27
Year of publication
1999
Pages
4977 - 4980
Database
ISI
SICI code
0040-4039(19990702)40:27<4977:ANCOCD>2.0.ZU;2-A
Abstract
Double lithiation of bis(tetra-hydroindenyl)iron followed by phosphorylatio n using Ph2PCl affords two different chiral diphosphines having respectivel y C-1- and C-2-symmetry. Following antipode separation, the compounds can b e used as ligands in Rh-catalyzed hydrogenation (up to 97% ee) and hydrobor ation (up to 84% ee) of olefins and in Ir-catalyzed hydrogenation of imines (up to 79% ee). (C) 1999 Elsevier Science Ltd. All rights reserved.