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Tahmasbi M, Koukabi N, Armandpour O. Sono and nano: A perfect synergy for eco-compatible Biginelli reaction. HETEROCYCL COMMUN 2022. [DOI: 10.1515/hc-2022-0003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Abstract
In this study, we evaluated the performance of nano-γ-Fe2O3–SO3H catalyst in the Biginelli reaction and synthesized 3,4-dihydropyrimidine-2-(1H)-ones. This reaction was carried out under solvent-free and ultrasonic irradiation conditions and belonged to one-pot multicomponent reactions (MCRs) with an adopted aromatic aldehyde, ethyl acetoacetate, and urea as starting materials for the beginning of the reaction. The synthesized materials were efficient in synthesizing 3,4-dihydropyrimidine-2-(1H)-ones via the Biginelli reaction under reaction conditions. Thus, the advantages of using nano-γ-Fe2O3–SO3H in the Biginelli reaction are short reaction time, high efficiency, green method, solvent free, and cost-effective. Furthermore, nano-γ-Fe2O3–SO3H as a heterogeneous catalyst can be recycled five times without significantly reducing catalytic activity.
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Affiliation(s)
- Marzieh Tahmasbi
- Department of Chemistry, Semnan University , Semnan , 35131-19111 , Iran
| | - Nadiya Koukabi
- Department of Chemistry, Semnan University , Semnan , 35131-19111 , Iran
| | - Ozra Armandpour
- Department of Chemistry, Semnan University , Semnan , 35131-19111 , Iran
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Kim DH. Questionable Recyclable Catalyst: Comment on “ O-Acetyl-Substituted Phenol Ester Synthesis via Direct Oxidative Esterification Utilizing Ethers as an Acylating Source with Cu 2(dhtp) Metal–Organic Framework as a Recyclable Catalyst”. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dong Ho Kim
- Department of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
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