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Of the many methods which have been used to synthesize benzyne, most of them have involved elimination of an anion in the final step. We have obtained evidence for the formation of benzyne by elimination of a cationic group. Ortho-amino-triphenyl carbinol gives on diazotization in acetic acid, benzophenone and phenyl acetate, in addition to 9-phenyl-fluorenol, the product of ring closure.
