反应详情

A solution of 7.3 g (0.028 mol) of 1-amino-3-hydroxyguanidine toluenesulfonate in 14 ml of water and 14.5 ml of 2N hydrochloric acid is added to a solution of 6.9 g (0.028 mol) of crude 3-formylbenzamidine hydrochloride (prepared as described in Example 1b) in 28 ml of methanol, and the reaction mixture is heated at 70° for 1 hour. It is then cooled and concentrated by evaporation, and the crude product is recrystallised from water/ethanol; m.p. 248°-250°.

1. temperaturethe reaction mixture is heated at 70° for 1 hour
2. temperatureIt is then cooled
3. concentrationconcentrated by evaporation
4. customthe crude product is recrystallised from water/ethanol