Nitric Acid → Nitric acid--azepan-2-one (1/1)

Participants

Reaction Steps

To a 100 ml flask containing 11.32 g of ε-caprolactam (0.1 mol), 30 ml water was added and stirred for dissolution. 9.69 g of 65% nitric acid (0.1 mol) was added dropwise into the flask over 30 min at room temperature. Then the reaction was stirred for another 8 hours. Desired product was formed after water was removed under reduced pressure and dried at 110° C. under 1–5 mmHg for 1 hour. The white, moisture- and water-stable solid of caprolactam nitrate was obtained with a yield of 98.1%, which has a melting point of 40–42° C. No glass transition temperature was observed.

Provenance & Evidence