Reactions of acylpolysilanes with silyl Lewis acids

Authors
Berry, MB Griffiths, RJ Howard, JAK Leech, MA Steel, PG Yufit, DS
Citation
Mb. Berry et al., Reactions of acylpolysilanes with silyl Lewis acids, J CHEM S P1, (24), 1999, pp. 3645-3650
Citations number
15
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
ISSN journal
0300922X → ACNP
Issue
24
Year of publication
1999
Pages
3645 - 3650
Database
ISI
SICI code
0300-922X(1999):24<3645:ROAWSL>2.0.ZU;2-O
Abstract
The reaction of acylpolysilanes with TMSOT and TMS(NTf2) proceed via a seri es of 1,2 silyl and silyoxy shifts to afford the silanol products 5 and 6 r espectively. A unified mechanistic pathway involving the formation of trans ient silenium ion complexes and silenes which rationalises these products i s proposed. The structural assignment of the products is supported by X-ray structures for the phenyl 6a and trifluoromethylphenyl 6b substituted sila nols.