Selvaraj, S.; Rajendran, A. S.; Arumugam, N., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1987, vol. 26, # 1-12, p. 1047 - 1049
Benzyne and 1-naphthyne (generated from the corresponding halogeno derivatives and the Complex Base NaNH2-ButONa) condense with α,β-unsaturated ketone enolates β-substituted by an aromatic ring and only enolisable in the α'-position, to lead to α-tetralones and/or indanones. The reaction path depends upon the nature of the ketone enolate and, less strongly, on the solvent. The reaction mechanism is