Lithium amide → HCID 70507079, compound

Participants

Reaction Steps

A solution of 7.5 g (0.022 mole) of ethyl 4-(2-oxo-1-azepinyl)-2,2,6,6-tetramethylpiperidin-1-ylacetate and 4.2 g (0.024 mole) of 1,2,2,6,6-pentamethylpiperidin-4-ol in 50 ml of xylene is heated for one hour at 120° C. in the presence of 0.1 g of lithium amide esterification catalyst. The xylene-ethanol azeotropic mixture is slowly distilled off using an oil bath held at 150° C. to heat the reaction vessel. After five hours, four drops of acetic acid is added to the reaction mixture and the xylene solvent is removed by distillation.

Provenance & Evidence