反应详情

0.082 mol of 4-amidino-benzoic acid amide hydrochloride, suspended in a solution of 0.082 mol of 2-n-hexyl-3-ethoxy-acrolein and 0.14 mol of sodium methylate in 150 ml. of methanol, are stirred overnight at room temperature under an atmosphere of nitrogen. The precipitate obtained by diluting the reaction mixture with 3.1 of ether is removed by filtration, washed with water until neutral and dried at 40° in a vacuum drying cabinet, whereby 17.9 g. of 4-(4-n-hexylpyrimid-2-yl)benzoic acid amide are obtained, m.p. 231.6° - 233.0°.

1. customThe precipitate obtained
2. customis removed by filtration
3. washwashed with water until neutral and
4. customdried at 40° in a vacuum
5. customdrying cabinet, whereby 17.9 g