668989-66-0Relevant academic research and scientific papers
The alkyne-anion promoted ring-contraction of hexachlorotropone: Synthesis and structure of [trimethylsilyl(pentachlorobenzoyl)ethyne]- hexacarbonyldicobalt
Dunn, James A.,Harrington, Laura E.,McGlinchey, Michael J.
, p. 8 - 13 (2004)
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.
