Research on Chemical Intermediates ( IF 2.8 ) Pub Date : 2022-01-12 , DOI: 10.1007/s11164-021-04619-z Majid M. Heravi 1 , Kosar Kafshdarzadeh 1 , Zahra Amiri 1 , Vahideh Zadsirjan 1 , Reihaneh Malakooti 2 , Hassan Atashin 2
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An eco-friendly method for diversity-oriented synthesis of substituted dihydropyrano[2,3-c]pyrazole and benzylpyrazolyl coumarin derivatives has been achieved via one-pot and multicomponent reaction in the presence of PdO/Al-SBA-15 as an efficient and recyclable catalyst in H2O/EtOH under reflux conditions. The significant merits of this method are wide scope, high yields of the desired products, short reaction times and simple workup procedure. In addition, this nanocatalyst was simply recovered and reused five times without significant loss in catalytic activity and also performance.
Graphical abstract
中文翻译：
Al-SBA-15 中负载的氧化钯纳米颗粒作为高效且可重复使用的催化剂，用于通过多组分反应合成吡喃吡唑和苄基吡唑基香豆素衍生物
在 PdO/Al-SBA-15 存在下，通过一锅多组分反应，实现了一种生态友好的方法，用于合成取代二氢吡喃并[2,3- c ]吡唑和苄基吡唑基香豆素衍生物，作为一种高效且回流条件下在 H 2 O/EtOH 中的可回收催化剂。该方法的显着优点是适用范围广、所需产物收率高、反应时间短和后处理程序简单。此外，这种纳米催化剂被简单地回收和重复使用五次，而催化活性和性能没有显着损失。
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