Abstract
Treatment of piperidine 8 with acetyl chloride or ethyl chloroformate in the presence of triethylamine gave the 2,3-dehydrogenated products 10a and 10b, respectively, together with the expected N-acylpiperidines 9.
Keywords: N-acyl adamantylmethylpiperidines, N-acyl adamantylmethyltetrahydropiperidines, synthesis