required substrates bearing activating groups. Herein, we report an efficient method for the synthesis of such compounds by direct reactions of o‐aminophenols with acetophenones promoted by sulfur in DMSO. The reaction was found to proceed via a Willgerodt rearrangement‐type benzoxazolation of acetophenones followed by a benzylic oxidation to reinstall the carbonyl function. This method has a broad
尽管具有2-苯甲酰基
苯并恶唑基序的化合物具有
生物学相关性,但合成它们的方法很少,大多数方法依赖于多步法或所需的带有活化基团的底物。本文中,我们报道了一种通过邻
氨基
酚与
DMSO中
硫促进的
苯乙酮直接反应合成此类化合物的有效方法。发现该反应是通过
苯乙酮的Willgerodt重排型
苯并恶唑化反应进行的,然后进行苄基氧化以重新安装羰基官能团。该方法具有广泛的底物范围,并且对敏感的官能团具有良好的耐受性。