Si-C bond activation of ArMe2SiOH promoted by a bromoplatinum(II) complex and Ag2O. Aryl group transfer from silicon to platinum

Citation
N. Mintcheva et al., Si-C bond activation of ArMe2SiOH promoted by a bromoplatinum(II) complex and Ag2O. Aryl group transfer from silicon to platinum, ORGANOMETAL, 20(6), 2001, pp. 1243-1246
Citations number
54
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
0276-7333 → ACNP
Volume
20
Issue
6
Year of publication
2001
Pages
1243 - 1246
Database
ISI
SICI code
0276-7333(20010319)20:6<1243:SBAOAP>2.0.ZU;2-C
Abstract
[PtBr(PEt3)(3)]BF4 (1) reacts with art excess of dimetliyl{4-(trifluorometh yl)phenyl}silanol in the presence of Ag2O and 4 Angstrom molecular sieves a t 60 OC to afford trans-Pt(C6H4CF3-4)(2)(PEt3)(2) (2) The reaction without molecular sieves and that with addition of a smalE amount of water give a m ixture of 2 and [Pt-2(mu -OH)(2)-(PEt3)(4)](BF4)(2). The organic products o f the reaction are composed of ArSiMe2-O-(SiMe2-O)(n)-SiMe2Ar (Ar = C6H4 CF 3-4, n = 0, 1, 2) a nd cyclooligodimethylsiloxanes in lesser amounts. The o btained complexes were characterized by NMR spectroscopy and X-ray crystall ography.