2.4- Dioxo-3,3-diethyl-piperidine

The same compound is obtained when proceeding according to the following alternative procedure. A mixture of 39.4 parts by weight of 2,4-dioxo-3,3-diethyl-5-oxymethylene-piperidine and 27 parts by weight of dibutylamine are heated to 150°C in a closed vessel. The 2,4-dioxo-3,3-diethyl-5-dibutylamino-methylene-piperidine formed melts at 77°C after having been recrystallized in petroleum ether. 

Dioxo-8a-methyl-l, 2,3,4,6,7,8,8a-octahydronaphthalene has been obtained through the reaction of 2-methyl-l,3-cyclohexane-dione with acetonedicarboxylic acid and formaldehyde,3 4-diethyl-amino-2-butanone methiodide,3 pyridine and 4-diethylamino-2-butanone,4 triethylamine and 4-diethylamino-2-butanone,5 and by cyclization of 2-methyl-2-(3-oxobutyl)-l,3-cyclohexanedione using either aluminum fer/-butoxide or piperidine phosphate as catalyst.6 7... 

Synonyms Methypryl Methyprylone 2,4-Dioxo-3,3-diethyl-5-methyl piperidine 3,3-Diethyl-5-methyl-2,4-piperidinedine 3,3-Diethyl-5-methyl-2, 4-piperidinedione Noludar Noctan Methyl-2, 4-peperidine 3,3-Diethyl-5-methyl-2,4-piperi-dinedione Noludar Noctan Dimerin Chemical/Pharmaceutical/Other Class Piperi-dinedione derivative Chemical Formula C10H17NO2 Chemical Structure ... 

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