guaethol
英
美
网络 乙基愈创木酚
双语例句
- As an intermediate for preparing ethyl vanillin derived from glyoxylic acid, 3-ethoxy-4-hydroxymandelic acid ( EHMA) is synthesized based on condensation of guaethol and glyoxylic acid in alkaline aqueous solution.
以邻羟基苯乙醚（乙基愈创木酚）和乙醛酸为原料，在碱性条件下发生缩合反应，合成了3乙氧基4羟基扁桃酸，此物质是以乙醛酸法制备乙基香兰素的中间体。