Supported palladium oxide nanoparticles in Al-SBA-15 as an efficient and reusable catalyst for the synthesis of pyranopyrazole and benzylpyrazolyl coumarin derivatives via multicomponent reactions

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 H 2 O/EtOH under reflux...

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Bibliographic Details
Published in:Research on chemical intermediates 2022, Vol.48 (1), p.203-234
Main Authors: Heravi, Majid M., Malakooti, Reihaneh, Kafshdarzadeh, Kosar, Amiri, Zahra, Zadsirjan, Vahideh, Atashin, Hassan
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Chemistry and Materials Science
Coumarin
Inorganic Chemistry
Nanoparticles
Palladium
Physical Chemistry
Pyrazole
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Summary: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 H 2 O/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
ISSN:0922-6168
1568-5675
DOI:10.1007/s11164-021-04619-z