Benzoxazolone was prepared from o-aminophenol and urea and then was chloridized by hydrogen peroxide and hydrochloric acid to get 6-chlorobenzoxazolone.

• 摘要以邻氨基苯酚和尿素为原料生成苯并恶唑酮，再用过氧化氢／盐酸氯化制得6-氯苯并恶唑酮。