NOVEL CHIRAL P,N-FERROCENE LIGANDS IN PALLADIUM-CATALYZED ASYMMETRIC ALLYLIC ALKYLATIONS

Authors
ZHANG WB YONEDA Y KIDA T NAKATSUJI Y IKEDA I
Citation
Wb. Zhang et al., NOVEL CHIRAL P,N-FERROCENE LIGANDS IN PALLADIUM-CATALYZED ASYMMETRIC ALLYLIC ALKYLATIONS, Tetrahedron : asymmetry, 9(19), 1998, pp. 3371-3380
Citations number
47
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Inorganic & Nuclear","Chemistry Physical
Journal title
Tetrahedron : asymmetry → ACNP
ISSN journal
09574166
Volume
9
Issue
19
Year of publication
1998
Pages
3371 - 3380
Database
ISI
SICI code
0957-4166(1998)9:19<3371:NCPLIP>2.0.ZU;2-F
Abstract
Novel chiral P,N-ferrocene ligands, 1-diphenylphosphino-1'-oxazolinylf errocenes, were prepared from ferrocene via 1,1'-bis(tributylstannyl)f errocene and I -diphenylphosphino-1'-methoxycarbonylferrocene as inter mediates, and with this new kind of ligand up to 91% ee with 99% chemi cal yield was afforded for the palladium-catalyzed allylic alkylation of 1,3-diphenyl-2-propenyl acetate with dimethylmalonate anion. The co mplexation behavior of this kind of ligand with dichlorobis (acetonitr ile)palladium and s(mu-chloro)(1,3-diphenyl-eta(3)-allyl)dipalladium w as investigated. (C) 1998 Elsevier Science Ltd. All rights reserved.