| 翻訳と辞書 | 4-Piperidinone| 4-Piperidinone  : ウィキペディア英語版 | 
 
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 4-Piperidinone is a derivative of piperidine with the molecular formula C5H9NO. 4-Piperidone is used as an intermediate in the manufacture of chemicals and pharmaceutical drugs (e.g., fentanyl).
 ==Piperidones==
 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.〔''Ueber die Condensation von Aceton-dicarbonsäureestern mit Benzaldehyd unter Anwendung von Ammoniak'' P. Petrenko-Kritschenko, N. Zoneff Berichte der deutschen chemischen Gesellschaft
 Volume 39 Issue 2, Pages 1358 - 1361 1906 〕 This multicomponent reaction is related to the Hantzsch pyridine synthesis.
 
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