A facile and versatile method for acylation of structurally diverse amines and sulfonamides under focused ultrasonic irradiation in catalyst-free and solvent-free conditions is reported. There are several advantages to this approach such as simple and easier workup conditions, small amount of time and high yielding. The acylation reaction was carried out with acetic anhydride. All structures of synthesized products have been identified by NMR and mass spectroscopy.
报告了一种在无催化剂和无溶剂条件下,在聚焦超声波辐照下酰化结构多样的胺和磺酰胺的简便而通用的方法。这种方法有几个优点,如操作条件简单易行、耗时少、产率高。酰化反应是用
乙酸酐进行的。合成产物的所有结构均已通过核磁共振和质谱鉴定。