Dimethylamine → HCID 21514639, compound

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Reaction Steps

To a mixture of 201 parts (1 mole) of N-(1,1-dimethyl-3-oxobutyl)-3-methoxypropionamide and 91 parts (2 moles) of dimethylamine are added 0.5 part of platinum oxide and 3 parts of p-toluenesulfonic acid. The liquid mixture is poured into a hydrogenation bottle, flushed with hydrogen and pressurized with hydrogen on a Parr hydrogenation apparatus at 69 psi. and hydrogenated for about 12 hours, with hydrogen pressure being replenished to 70 psi. when it has dropped to 27 psi. The mixture is then stripped on a rotary evaporator and the residue, a yellow liquid, is dissolved in 16% aqueous hydrochloric acid and extracted with four 100-ml. portions of chloroform. The aqueous solution is then made alkaline by the addition of a solution of 30 parts of sodium hydroxide in 75 parts of water, the alkaline solution is again extracted with four 100-ml. portions of chloroform and the chloroform extracts are stripped and distilled. The desired product, N-(1,1-dimethyl-3-dimethylaminobutyl)-3-methoxypropionamide, is obtained boiling at 87°-95° C./0.5 mm. It contains 12.1% nitrogen, as compared with 12.2% theoretical.

Provenance & Evidence