A simple and efficient method for the conversion of carbonyl compounds to oxathioacetals and dithioacetals by using polyphosphoric acid supported on silica gel (PPA/SiO2) as an acid catalyst have been developed. PPA/SiO2 is easily recovered from the reaction mixture and reused without a decrease in catalytic activity.
开发了一种简单高效的方法,通过使用负载在
硅胶上的多
磷酸(
PPA/SiO2)作为酸催化剂,将羰基化合物转化为氧
硫酯和二
硫酯。
PPA/SiO2可以轻松从反应混合物中回收,并且在重复使用时没有催化活性下降。