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AcetondicarboxylicPiperidonesSynth. en PetrenkoKritschenko Piperidone Synthesis Formation of piperidones via cyclization of two moles of aldehyde and one mole each of acetonedicarboxylic ester and ammonia or primary amine PetrenkoKritschenko et al Ber ru PetrenkoKritschenko et al Ber own
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