Synthesis and structural characterization of a silacycloheptadiene

Authors
Sohn, H Woo, HG Powell, DR
Citation
H. Sohn et al., Synthesis and structural characterization of a silacycloheptadiene, CHEM COMMUN, (8), 2000, pp. 697-698
Citations number
11
Categorie Soggetti
Chemistry
Journal title
CHEMICAL COMMUNICATIONS
ISSN journal
13597345 → ACNP
Issue
8
Year of publication
2000
Pages
697 - 698
Database
ISI
SICI code
1359-7345(2000):8<697:SASCOA>2.0.ZU;2-F
Abstract
The dilithium salt of tetraphenylbutadiene (1) reacts normally with phenyle thynyltrichlorosilane to give 1-chloro-1-phenylethynyl-2,3,4,5-tetraphenyls ilole (3), but with vinyltrichlorosilane the unexpected product is the sila cycloheptadiene 2, and X-ray crystal structures were obtained for 2 and 3; the seven-membered ring in 2 adopts a boat conformation, and a possible mec hanism for the formation of 2 is suggested.