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Huang S, Jin L, Liu Y, Yang G, Wang A, Le Z, Jiang G, Xie Z. Visible light-mediated synthesis of quinazolinones from benzyl bromides and 2-aminobenzamides without using any photocatalyst or additive. Org Biomol Chem 2024; 22:784-789. [PMID: 38168690 DOI: 10.1039/d3ob01491f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
This paper reports a novel method for the visible-light-mediated synthesis of quinazolinones from the reaction of benzyl bromides with 2-aminobenzamides. The reaction proceeded efficiently at room temperature upon irradiation with an 18 W blue light-emitting diode in air without photocatalysts or additives. By varying the solvent type, substrate molar ratio, and reaction time, the optimal reaction conditions, including the use of methanol solvent, room temperature, and reaction time of 28 h, were identified. Under these conditions, various quinazolinones were obtained using 18 substrates, with the highest yield of 93%. To determine the industrial value of the proposed method, a scale-up reaction was performed and 80% product yield was achieved. Mechanistic studies revealed that the reaction likely proceeded via a radical pathway and that the hydrogen bromide by-product generated during the first step of the reaction of benzyl bromide with 2-aminobenzamide promoted the subsequent step.
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Affiliation(s)
- Sheng Huang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Liang Jin
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Yufeng Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Guoping Yang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Aixin Wang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zhanggao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Guofang Jiang
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Nanchang, 330013, China.
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Abstract
The bismuth-catalyzed oxidative condensation of aldehydes with 2-aminobenzamide under aerobic conditions is reported using ethanol as the solvent. Good to excellent isolated yields (68-95%) of the corresponding 2-substituted quinazolinones were obtained under mild reaction conditions with excellent functional group tolerance. The quinazolinones were further functionalized to afford N-allylated quinazolinones, 2-aminopyridine derivatives, and annulated polyheterocyclic compounds via transition-metal catalyzed reactions.
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Affiliation(s)
- Sandeep R. Vemula
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108-6050, USA
| | - Dinesh Kumar
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) - Ahmedabad, Gandhinagar 382355, Gujarat, India
| | - Gregory R. Cook
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, ND 58108-6050, USA
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Zhang W, Meng C, Liu Y, Tang Y, Li F. Auto-Tandem Catalysis with Ruthenium: From o
-Aminobenzamides and Allylic Alcohols to Quinazolinones via
Redox Isomerization/Acceptorless Dehydrogenation. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800660] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Weikang Zhang
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Chong Meng
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Yan Liu
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Yawen Tang
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
| | - Feng Li
- School of Chemical Engineering; Nanjing University of Science & Technology; Nanjing 210094 People's Republic of China
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; Dalian 116024 People's Republic of China
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Xie F, Chen QH, Xie R, Jiang HF, Zhang M. MOF-Derived Nanocobalt for Oxidative Functionalization of Cyclic Amines to Quinazolinones with 2-Aminoarylmethanols. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01366] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Feng Xie
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Qing-Hua Chen
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Rong Xie
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Huan-Feng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, People’s Republic of China
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