Journal article
The alkyne-anion promoted ring-contraction of hexachlorotropone: synthesis and structure of [trimethylsilyl(pentachlorobenzoyl)ethyne]-hexacarbonyldicobalt
Abstract
The reaction of hexachlorotropone with trimethylsilylethynyl-lithium leads to contraction of the seven-membered ring via a semibenzilic acid rearrangement to yield pentachlorophenyl trimethylsilylethynyl ketone, 4. Treatment of 4 with dicobalt octacarbonyl yields the corresponding alkyne-dicobalt hexacarbonyl, 6, which has been characterized by X-ray crystallography.
Authors
Dunn JA; Harrington LE; McGlinchey MJ
Journal
Journal of Organometallic Chemistry, Vol. 689, No. 1, pp. 8–13
Publisher
Elsevier
Publication Date
January 2004
DOI
10.1016/j.jorganchem.2003.09.033
ISSN
0022-328X