Modi, Anju ; Ali, Wajid ; Mohanta, Prakash R. ; Khatun, Nilufa ; Patel, Bhisma K. (2015) CuO nanoparticle catalyzed synthesis of 2,3-disubstituted quinazolinones via sequential N-arylation and oxidative C–H amidation ACS Sustainable Chemistry & Engineering, 3 (10). pp. 2582-2590. ISSN 2168-0485
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Official URL: https://pubs.acs.org/doi/abs/10.1021/acssuschemeng...
Related URL: http://dx.doi.org/10.1021/acssuschemeng.5b00817
Abstract
CuO nanoparticle catalyzed synthesis of 2,3-disubstituted quinazolinones has been accomplished from 2-halobenzamides and (aryl)methanamines under an air atmosphere. This synthesis of the N-heterocycle involves a sequential Ullmann coupling [between 2-halobenzamide and (aryl)methanamine], oxidation of the in situ generated secondary amine to imine. This is then followed by an intramolecular nucleophilic attack of the amidic N–H on to the imine carbon (C–N bond formation) resulting in the synthesis of 2,3-disubstituted quinazolinones. The recyclability of the catalyst and tolerance of a wide range of functional groups makes this method efficient and cost-effective.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
Keywords: | Cuo Nanoparticle; C−H Functionalization; Domino Reaction; N-Heterocycle Synthesis |
ID Code: | 113809 |
Deposited On: | 30 Apr 2018 12:19 |
Last Modified: | 30 Apr 2018 12:19 |
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