Radialene Fills In A Missing Hydrocarbon Gap
Radialenes are a unique class of star-shaped cyclic hydrocarbons that have double bonds radiating out from each carbon in the ring. Prior to this year, chemists had made the three-, four-, and six-membered ring versions of these polyenes, but never radialene—it had always been too unstable. A research team including Emily G. Mackay and Michael S. Sherburn of Australian National University and Michael N. Paddon-Row of the University of New South Wales developed a synthetic strategy to make the missing link for the first time (J. Am. Chem. Soc. 2015, DOI: 10.1021/jacs.5b07445).