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4-Piperidone is an organic compound with the molecular formula OC(CH 2) 4 NH. 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. [1]
N-Methyl-3-piperidyl benzilate (JB-336, BZ) Piperidine is also commonly used in chemical degradation reactions, such as the sequencing of DNA in the cleavage of particular modified nucleotides . Piperidine is also commonly used as a base for the deprotection of Fmoc - amino acids used in solid-phase peptide synthesis .
Hydrazone formation of 1-methyl-4-piperidone (1) with benzohydrazide (2) gives (3). Catalytic hydrogenation using Adams' catalyst gives the substituted hydrazine (6) after acid-catalyzed hydrolysis to remove the benzoyl group and neutralization.
4-Pyridone exists a keto-enol tautomerism with its enol tautomer 4-hydroxypyridine. In solution , the keto tautomer is favoured, [ 4 ] and the enol tautomer only becomes important in very dilute solutions or solutions of non-polar solvents.
N 1-Methyl-4-pyridone-3-carboxamide, also abbreviated as 4PY, is a breakdown product of niacin and NAD, [1] that is associated with an increased risk of cardiovascular disease. [2] It has 2 carbonyl groups that are close to each other.
2,2,6,6-Tetramethylpiperidine, abbreviated TMP, HTMP, or TMPH, is an organic compound of the amine class. In appearance, it is a colorless liquid and has a "fishy", amine-like odor.
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. [1]
Density: 0.943 g/mL Melting point: ... Most of the reactions of picoline are centered on the methyl group. ... H 3 CC 5 H 4 N + BuLi → LiH 2 CC 5 H 4 N + BuH.