The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

概述4-羟基香豆素的法，重介绍法，乙酰水杨酸法，水杨酸甲酯法，邻羟基乙酮法。