Process for preparing 2,2,6,6-tetramethyl-4- piperidone

Details Process for preparing 2,2,6,6-tetramethyl-4- piperidone Process for preparing 2,2,6,6-tetramethyl-4- piperidone

C - Chemistry, Metallurgy

07

D

260/292.6

C07D 211/74 (2006.01) C07D 211/02 (2006.01)

Patent

CA 1099272

ABSTRACT A process for preparing 2,2,6,6-tetramethyl-4-piperidone from ammonia and acetone, wherein acetone and ammonia are reacted in a single stage for a time of 2 to 8 hours in an acetone : ammonia molar ratio of 20:1 to 4:1; at a temperature of 50° to 120°C and at a pressure of 1 to 50 atmospheres, in the presence of 0.001-0.1 moles of acid catalysts per mole of acetone used in the reaction.

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