nanoparticles were successfully prepared and characterized. This magnetic nanocomposite was employed as an efficient, reusable, and environmentally benign heterogeneous catalyst for the direct amidation of alcohols with amine hydrochloride salts. Several derivatives of primary, secondary and tertiary amides were synthesized in moderate to good yields in the presence of this catalytic system. The catalyst was
磁性Fe(OH)3 @Fe 3 O 4纳米粒子的制备和表征成功。该磁性纳米复合材料用作将醇与胺盐酸盐直接酰胺化的有效,可重复使用且对环境无害的多相催化剂。在该催化体系的存在下,以中等至良好的产率合成了伯,仲和叔酰胺的几种衍
生物。该催化剂已成功回收利用,最多可重复使用六次,而不会显着降低其催化活性。