Max M. Hansmann, Rebecca L. Melen, Frank Rominger, A. Stephen K. Hashmi and Douglas W. Stephan
Chem. Commun., 2014,50, 7243-7245
DOI:
10.1039/C4CC01370K,
Communication
The reactions of internal propargyl esters with B(C6F5)3 provide access to stable zwitterionic 1,3-dioxolium compounds which are characterised by X-ray diffraction. These 6π-electron systems show no significant aromatic stabilisation.
