反应详情

A reaction mixture comprising 73.36 g of α-(dimethylamino)methylene]-β-oxo-2-benzenepropanenitrile, 63.45 g of aminoguanidine nitrate, 500 ml of ethanol and 36.6 ml of 10N sodium hydroxide was refluxed for 10 hours and then cooled. The resulting precipitate was collected and washed with water, giving 17.1 g of the desired product, mp 177°-179° C.

1. temperaturecooled
2. customThe resulting precipitate was collected
3. washwashed with water