R. L. Hillard, K. Vollhardt
Jun 9, 1976
Citations
0
Influential Citations
14
Citations
Journal
Journal of the American Chemical Society
Abstract
Cyclobuta(1,2-d)benzyne has been generated from 4,5-bromoiodobenzocyclobutene and magnesium or butyllithium. The transient reactive species can be trapped with furan as the Diels--Alder adduct. In the absence of trapping agents dimerization occurs to 2,3:6,7-dicyclobutabiphenylene, a novel strained benzenoid hydrocarbon with distinctly olefinic properties.