反应详情

Following the procedure described in Example 608, Part B, 8.2 g (0.04 mole) of 1-azaphenanthren-5,6-dione and 165 ml of 10% sodium hydroxide were heated in a bath at 80°-90° for 3 hours. Identical workup yielded 3.88 g, m.p. 140°-142° of pure 4-azafluoren-9-one.

1. temperaturewere heated in a bath at 80°-90° for 3 hours