The 1,5‐diazabicyclo[4.3.0]non‐5‐ene (DBN)‐catalyzed, highly efficient and relatively green regioselective acylation of carbohydrates and diols is firstly developed. The hydroxyl groups can be selectively acylated by the corresponding anhydride in EtOAc in the presence of a catalytic amount (as low as 0.1 equiv.) of DBN at room temperature to 40 °C.
                                    碳水化合物和二醇的1,5-二
氮杂双环[4.3.0] non-5-ene(
DBN)催化,高效且相对绿色的区域选择性酰化反应是最先开发的。在室温至40°C下,在存在催化量(低至0.1当量)的
DBN的情况下,可用相应的酸酐在EtOAc中将羟基选择性地酰化。