Acetic anhydride–pyridine over basic alumina has been used in order to carry out acetylations of hydroxy, thiol and amino groups in solvent-free conditions under microwave irradiation. The technique can be extended for selective acetylations by regulation of irradiation time.
为了在无溶剂条件下在微波辐射下进行羟基,
硫醇和
氨基的乙酰化反应,已使用碱性氧化铝上的
乙酸酐-
吡啶进行乙酰化。该技术可通过调节照射时间扩展到选择性乙酰化。