Ethyl propiolate → HCID 19922149, compound

Participants

Reaction Steps

44 g of ethanol propiolate were added dropwise to a solution of 78.4 g of bis(2,2,6,6-tetramethyl-4-piperidinyl) fumarate in 300 ml of ethanol at 40° to 60° C. The mixture was then refluxed for 3 hours. The precipitate which resulted on cooling to room temperature was filtered off, washed with petroleum ether and dried. 107 g of the compound of the formula shown below were obtained in the form of a colorless solid of melting point 185°-186° C. ##STR24##

Provenance & Evidence