4-Hydroxy-2,2,6,6-tetramethylpiperidine → HCID 54408028, compound

Participants

Reaction Steps

To the same reactor as in Example 1 were added 23.3 g (0.09 mole) of N,N-bis(ethoxycarbonylmethyl)butanecarboxylic acid amide, 28.2 g (0.18 mole) of 2,2,6,6-tetramethyl-4-piperidinol, 50 ml of toluene and 0.5 g (0.04 mole) of potassium tert-butoxide. Reaction and after-treatment were carried out in the same manner as in Example 1 to obtain 30.3 g of N,N-bis(2,2,6,6-tetramethyl-4-piperidinyloxycarbonylmethyl)butanecarboxylic acid amide as a white crystal (yield, 70%). Melting point, 96°-98° C.

Provenance & Evidence