| Literature DB >> 11349901 |
W Goertz1, P C Kamer, P W van Leeuwen, D Vogt.
Abstract
New homochiral xantphos-type diphosphonite ligands with binaphthoxy substituents have been prepared and characterized by NMR spectroscopy. These ligands have been applied in the nickel-catalyzed hydrocyanation of styrene and other vinylarenes. Enantioselectivities up to 63% ee have been obtained by using 4-isobutylstyrene as a substrate. Addition of an excess of ligand strongly inhibits the hydrocyanation reaction since the bis-chelate nickel complexes formed are highly stable and catalytically inactive.Entities:
Year: 2001 PMID： 11349901 DOI： 10.1002/1521-3765(20010417)7:8<1614::aid-chem16140>3.0.co;2-e
Source DB: PubMed Journal: Chemistry ISSN： 0947-6539 Impact factor: 5.236