Ethyl propiolate → HCID 53986483, compound

Participants

Reaction Steps

54 g (0.55 mol) of ethyl propiolate were added dropwise to 78 g (0.50 mol) of triacetoneamine in 200 ml of ethanol at reflux, and the mixture was then stirred at this temperature for a further 4 hours. After cooling, the precipitated product was filtered off, thoroughly washed with petroleum ether and subsequently dried at 60° C. and under 0.1 mbar. 80 g (corresponding to a yield of 63%) of ethyl β-(2,2,6,6-tetramethyl-4-oxo-1-piperidinyl)acrylate were obtained in the form of a colorless solid of melting point 145° C.

Provenance & Evidence