The combined use of high concentration conditions, auxiliary bases, and new catalysts allows for the rapid synthesis of sterically hindered carboxylic acid esters at room temperature. Mechanistic analysis indicates the intermediate formation of acid anhydrides and subsequent rate-limiting transformation to the ester products.
高浓度条件,辅助碱和新催化剂的组合使用可在室温下快速合成空间受阻的
羧酸酯。机理分析表明酸酐的中间形成和随后的限速转化成酯产物。