Piperidone
Piperidinones or piperidones are a class of chemical compounds sharing the piperidone skeleton. A classic named reaction for the synthesis of piperidones is the Petrenko-Kritschenko piperidone synthesis which involves combining an alkyl-1,3-acetonedicarboxylate with benzaldehyde and an amine. This multicomponent reaction is related to the Hantzsch pyridine synthesis. Piperidinones * 2-Piperidinone 2-Piperidinone (2-piperidone or δ-valerolactam) is an organic compound with the formula . Valerolactam is formed by dehydrogenation of 5-amino-1-pentanol, catalyzed by rhodium and ruthenium complexes, The compound, a colorless solid, is classifi ... * 3-Piperidinone * 4-Piperidinone References {{chemistry index Piperidinones ...
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4-Piperidinone
4-Piperidone is an organic compound with the molecular formula . It can be viewed as a derivative of piperidine. 4-Piperidone is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs. Substituted and dehydro derivatives of 4-piperidinone are intermediates in alkaloid syntheses. The N-protonated derivative is typically isolated as the hydrate . It is a DEA list of chemicals, List I chemical in the United States as it is a precursor to fentanyl. See also * 4-Pyridone *1-Methyl-4-piperidone References

4-Piperidinones, {{Heterocyclic-stub ...
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