1-Bromododecane → HCID 21532980, compound

Participants

Reaction Steps

A mixture of 15.7 parts of 2,2,6,6-tetramethylpiperidin-4-ol and 12.5 parts of n-dodecyl bromide in 50 parts of ethyl alcohol was heated under reflux conditions for 72 hours. The cooled reaction mixture was filtered to remove 2,2,6,6-tetramethylpiperidin-4-ol hydrobromide formed during the reaction and the ethyl alcohol solvent was removed by distillation under reduced pressure. The residue was treated with petroleum under (b.p. 40°-60°C) and filtered to remove the unreacted 2,2,6,6-tetramethylpiperidin-4-ol and the petroleum ether solvent was removed by distillation under reduced pressure. Fractional distillation of the residue gave 1-n-dodecyl-2,2,6,6-tetramethylpiperidin-4-ol having a melting point of 41°-2°C and the following elemental analysis by weight:

Provenance & Evidence