Trimethylamine → Benzenemethanaminium, N,N-dimethyl-N-2-propenyl-, chloride

Participants

Reaction Conditions

Reaction Steps

477 grams (3.05 mole) of 98% vinylbenzyl chloride is dissolved in 2070 ml. of acetone:diethylketone (1:1 vol). While maintaining a batch temperature of 19°-24° C., 200 grams of trimethylamine is added to this solution over a period of six hours by bubbling the gaseous amine into the stirred, cooled solution. After stirring the resulting batch at ambient temperature (26° C.) for one hour, 1300 ml. of solvent is removed under vacuum. (This solvent mixture is saved and reused in subsequent preparations.) The resulting hydroscopic solid is dried in the reaction flask at reduced pressure and ambient temperature. 634 grams (90% yield) of resulting solid product is then carefully transferred to a tightly sealed bottle for storage to prevent water pickup.

Provenance & Evidence