3-Methoxypropylamine → N-(3-methoxypropyl)urea

Participants

Reaction Steps

3-Methoxypropyl urea was prepared from methoxypropylamine and potassium cyanate. Seventy-six grams of this product was mixed with 43 g. of cyanoacetic acid and 100 ml. of acetic anhydride. The mixture was stirred and heated on a steam bath. When the temperature of the mixture reached 85°C., heat of reaction evolved and external cooling was applied to keep the temperature under control. After stirring for 1 hour on the steam bath, the mixture was cooled. The cyanoacetyl urea was recovered by filtration, washing with ether and drying. Yield 77.5 g., mp 128.5-130.5°.

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