SEARCH Articles Figures Tables N-Phenylpiperidine from sodium benzenesulfonate and piperidine Pimelic acid (from, benzoyl piperidine) Piperidine derivatives acetyl ester from Piperidine from arginine Piperidine from pyridine Piperidine: enamines from Piperidines from pyridine Piperidines ring synthesis from Piperidines, dehydrogenation from pyridines Piperidines, from plant sources Proline piperidine derivative from Pyridines, acylation from piperidines