Das Tosylhydrazon‐Natriumsalz (I) bildet beim Erhitzen unter 1,1‐Cycloaddition eines intermediär gebildeten Allyldiazomethans das Diazatricycloundecatrien (II).
Treatment of the Cycloalkanones (I) with ethyl bromoacetate (II) gives the alcohols (III), which undergo dehydration, saponification, and phenylation to afford the ketones (V).
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