Morpholine stabilized on nano silica sulfuric acid: a novel reusable catalyst for the synthesis of triazoloquinazoline and polyhydroquinoline derivatives
the prepared reagent was investigated in the promotion of the synthesis of triazoloquinazoline derivatives. This reagent was also efficiently able to catalyze the synthesis of a variety of polyhydroquinoline derivatives. In both of the studied reactions, the procedure lead to the products with excellent yields during very short reaction times. Also, the catalyst was reused several times without considerable
在本研究中,吗啉在纳米二氧化硅硫酸上的稳定作用产生了一种新型的固体酸性试剂,使用傅里叶变换红外光谱 (FT-IR)、X 射线衍射 (XRD)、扫描电子显微镜 (SEM)、透射电子显微镜 (TEM)、热重技术和能量色散 X 射线 (EDX)。接着,研究了所制备试剂在促进三唑并喹唑啉衍生物合成中的催化能力。该试剂还能够有效地催化多种聚氢喹啉衍生物的合成。在所研究的两个反应中,该程序在非常短的反应时间内产生具有优异产率的产物。此外,催化剂多次重复使用,其效率没有明显损失。