Titel
Silyl‐Substituted ortho‐Terphenoxide Group 3–5 Complexes: Synthesis, Structure and Applications in Catalysis
Autor*in
Abstract
The complexation behavior of 3,3’-silyl-substituted ortho-terphenoxide ligands o-C6H4(C6H2-2-OH-3-SiR3-5-Me)2 (SiR3= SiPh3, SiMePh2, SiMe3, Sit-BuMe2) with a range of yttrium, titanium, niobium and tantalum precursors was examined. The complexation of the ligands with [Y(N(SiHMe2)2)3(THF)2] yielded monomeric complexes, as confirmed by NMR spectroscopy and X-ray crystallography for the methyldiphenylsilyl- and tert-butyldimethylsilyl-substituted complex. The triphenylsilyl-substituted yttrium bis(dimethylsilyl)amido complex showed good activity in the intramolecular hydroamination reaction of aminoalkenes. Complexation with Ti(NMe2)4 yielded a mixture of products, depending on the silyl substituents and the solvent used for complexation. A mono-ligated bimetallic titanium complex and a bisligated titanium complex were analyzed by X-ray crystallography. Complexation with M(NMe2)5 (M=Nb, Ta) produced the corresponding monomeric ortho-terphenoxide complexes as confirmed by NMR spectroscopy and X-ray structure analysis of a niobium complex and 3 tantalum complexes.
Stichwort
Group 5 MetalsHydroaminationO ligandsTitaniumYttrium
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
phaidra.univie.ac.at/o:2045255
Erschienen in
Titel
European Journal of Inorganic Chemistry
ISSN
1434-1948
Erscheinungsdatum
2024
Publication
Wiley
Erscheinungsdatum
2024
Zugänglichkeit
Rechteangabe
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