An insight into the superior performance of ZnO@PEG nanocatalyst for the synthesis of 1,4-dihydropyrano[2,3-c]pyrazoles under ultrasound
3-c]pyrazol-6-amine Four-component synthesis Multicomponent reaction; 4-dihydropyrano[2; ZnO@PEG nanoparticle Ultrasonic irradiation 1
The investigation presents a straightforward synthesis of fifteen 1,4-dihydropyrano[2,3-c]pyrazoles using ZnO@PEG nanocatalyst in ethanol via Multicomponent approach under the influence of ultrasound. The present methodology successively tolerates a variety of functional groups and offers several advantages such as excellent yields without chromatographic purification, milder reaction conditions, shorter reaction times, and the use of an environmentally benign reusable catalyst. Ecstatically, the reaction was successfully scaled to gram level ascertaining the wider applicability of ZnO@PEG nanoparticles in multicomponent reactions. 2019 Elsevier Ltd. All rights reserved.
Tabassum S.; Sunaja Devi K.R.; Govindaraju S.
Materials Today: Proceedings, Vol-45, pp. 3898-3903.
https://doi.org/10.1016/j.matpr.2020.06.283 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85107381679&doi=10.1016%2fj.matpr.2020.06.283&partnerID=40&md5=4c1db366d70a8877f4b75cb5cc1979cd
Tabassum S., Department of Chemistry, Surana College, South End Road, Basavanagudi, Bengaluru, 560004, India; Sunaja Devi K.R., Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Govindaraju S., Department of Sciences and Humanities, School of Engineering and Technology, CHRIST (Deemed to be University), Kumbalagodu, Mysore Road, Bengaluru, 560074, India