Recent investigations have concluded that benzotriyne is unlikely to exist due to the large angle strain. A likely alternative would be a cyclical cumulene called cyclohexahexaene, which should itself be a metastable species.
^George A. Adamson and Charles W. Rees (1996). "Towards the total synthesis of cyclo[n]carbons and the generation of cyclocarbon". J. Chem. Soc., Perkin Trans. 1 (13): 1535–1543. doi:10.1039/P19960001535.
^Ellis K. Fields, Seymour Meyerson (October 1966). "Arynes by Pyrolysis of Acid Anhydrides". J. Org. Chem.31 (10): 3307–3309. doi:10.1021/jo01348a046.Cite uses deprecated parameters (help)