New bifunctional chelating phosphine ligands for immobilization of metal complexes on oxidic supports

Citation
G. Tsiavaliaris et al., New bifunctional chelating phosphine ligands for immobilization of metal complexes on oxidic supports, SYNLETT, (3), 2001, pp. 391-393
Citations number
27
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
SYNLETT
ISSN journal
09365214 → ACNP
Issue
3
Year of publication
2001
Pages
391 - 393
Database
ISI
SICI code
0936-5214(200103):3<391:NBCPLF>2.0.ZU;2-W
Abstract
The immobilization of transition metal complexes by bifunctional phosphines containing ethoxysilane groups is of widespread interest. Especially desir able are chelating phosphines, since they can reduce leaching of the metal complexes. Easy syntheses of the bifunctional chelating ethoxysilane phosph ines Ph2PCH2CH[OSi(OEt)(3)]CH2PPh2, and Ph2P(CH2)(x)P- Ph(CH2)(y)Si(OEt)(3) (x = 2, 3: y = 2, 3), and the nickel derivative (CO)(2)Ni[Ph2P(CH2)(2)PPh( CH2)(2)Si(OEt)(3)] are reported. The ethoxysilane groups present convenient handles for immobilization on oxidic supports.