A solvent-free approach for the regioselective synthesis of β-amino alcohols inshorter reaction times and higher yields, compared to conventional heating is described. Itinvolves microwave (MW) exposure of undiluted reactants in the presence of sulphatedzirconia (SZ) or sulphated zirconia over MCM-41 (SZM) as catalyst. Both acid materialscan be easily recovered and reused.
本文介绍了一种无溶剂方法,与传统加热法相比,它能以更短的反应时间和更高的产率进行 β-
氨基醇的区域选择性合成。该方法涉及在
硫酸化
锆 (SZ) 或
硫酸化
锆包覆 MC
M-41 (S
ZM) 作为催化剂的情况下,对未稀释的反应物进行微波 (MW) 暴露。这两种酸性材料都很容易回收和重复使用。