Site-Selective Acylation of Phenols Mediated by a Thioacid Surrogate through Sodium Thiosulfate Catalysis
作者:Wei-Jr Liao、Sih-Yu Lin、Yu-Shan Kuo、Chien-Fu Liang
DOI:10.1021/acs.orglett.2c01467
日期:2022.6.17
Sodium thiosulfate was used as the sulfur source that reacts with anhydrides to generate acyl-Bunte salts, after which a reaction with phenols was induced. This protocol can be applied for the site-selective acylation of the phenolic hydroxyl group in the presence of other alcoholic groups. The advantages of this acylation method are operational simplicity, high efficiency, and the use of odorless
硫代硫酸钠用作硫源,与酸酐反应生成酰基-邦特盐,然后引发与酚类的反应。该协议可用于在存在其他醇基的情况下对酚羟基进行位点选择性酰化。这种酰化方法的优点是操作简单、效率高、使用无味、毒性低的试剂。