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A 50.1 g amount of 1,6-diaminohexane was admixed with 20 ml of water and 13.2 g of ethyl acetate to form a solution. The solution was kept at room temperature for 2 days and then water and ethanol were removed by distillation. The residue was distilled under reduced pressure. When 30 g of 1,6-diaminohexane were distilled as a fraction having a boiling point of 82°- 84° C (12 mmHg), 14.9 g of 6-acetamidohexylamine were obtained as a fraction having a boiling point of 170°- 175° C (7 mmHg) (yield 65.8%).

1. customto form a solution
2. customwater and ethanol were removed by distillation
3. distillationThe residue was distilled under reduced pressure
4. distillationWhen 30 g of 1,6-diaminohexane were distilled as a fraction