Potassium Hydroxide → HCID 22341853, compound

Participants

Reaction Steps

33.8 g (0.2 mol) 2,2,6-trimethyl-6-ethyl-4-oxopiperidine, 14 g (0.28 mol) hydrazinhydrate and 13 g KOH in 80 ml diethylenglykol are stirred for 4 h at 160° C. Subsequently an additional amount of 30 g KOH dissolved in 30 ml water are added. 30 ml are distilled off. To the residue two times 40 ml of water are added and removed by distillation. The combined distillates are saturated with solid K2CO3 and extracted with methyl-tert.-butylether. From the extracts 6 g ( 19%) 2,2,6-trimethyl-6-ethyl-piperidin are isolated by fractionated distillation. A colorless liquid is obtained with a b. p. of 78-88° C./15 mbar.

Provenance & Evidence