Formaldehyde → HCID 23330770, compound

Participants

Reaction Steps

54.3 g of 2,4,6-tris-(2,2,6,6-tetramethyl-4-piperidylamino)-1,3,5-triazine are dissolved in 200 ml of glacial acetic acid. After addition of 20 ml of 36% formaldehyde solution, the reaction mixture is stirred for 18 hours at room temperature, then diluted with water, made strongly alkaline with concentrated sodium hydroxide solution and extracted with toluene. The toluene solution is dried over sodium sulphate and concentrated in vacuo. Crystallisation of the residue yields 2,4-bis-(2,2,6,6-tetramethyl-4-piperidylamino)-6-(2,2,6,6-tetramethyl-4-piperidyl-methylolamino)-1,3,5-triazine in the form of colourless crystals with a melting point of 201°-202° C.

Provenance & Evidence