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1
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Li C, Zhang S, Li S, Feng Y, Fan QH. Ruthenium-catalyzed enantioselective hydrogenation of quinoxalinones and quinazolinones. Org Chem Front 2022. [DOI: 10.1039/d1qo01598b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An efficient Ru-catalyzed asymmetric hydrogenation of quinoxalinone and quinazolinone derivatives has been developed, providing a facile access to chiral dihydroquinoxalinones and dihydroquinazolinones with excellent enantioselectivities.
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Affiliation(s)
- Chenghao Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shuxin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Shan Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yu Feng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qing-Hua Fan
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences (CAS), and University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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2
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Ubale AS, Shaikh MA, Gnanaprakasam B. Sequential Oxidative Fragmentation and Skeletal Rearrangement of Peroxides for the Synthesis of Quinazolinone Derivatives. J Org Chem 2021; 86:9621-9636. [PMID: 34232051 DOI: 10.1021/acs.joc.1c00889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
For the first time, the sequential reaction of peroxyoxindole that involves base-promoted oxidative fragmentation to isocyanate formation and primary amine or amino alcohol accelerated skeletal rearrangement to synthesize exo-olefinic-substituted quinazolinone or oxazoloquinazolinone is reported. The advantages of this new reaction include a broad substrate scope and transition-metal-free and room-temperature conditions. The formation of the isocyanate as a key intermediate that accelerates oxidative skeletal rearrangement has been confirmed by trapping experiments and spectroscopic evidence.
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Affiliation(s)
- Akash S Ubale
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Moseen A Shaikh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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3
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Zhao Z, Li X, Wu B, Zhou Y. Biomimetic Asymmetric Reduction of Quinazolinones with Chiral and Regenerable
NAD
(P)H Models. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000045] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zi‐Biao Zhao
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Xiang Li
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Bo Wu
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
| | - Yong‐Gui Zhou
- State Key Laboratory of CatalysisDalian Institute of Chemical Physics, Chinese Academy of Sciences Dalian Liaoning 116023 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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4
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Sawant R, Stevens MY, Odell LR. Microwave-Assisted aza-Friedel-Crafts Arylation of N-Acyliminium Ions: Expedient Access to 4-Aryl 3,4-Dihydroquinazolinones. ACS OMEGA 2018; 3:14258-14265. [PMID: 31458116 PMCID: PMC6644441 DOI: 10.1021/acsomega.8b02298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 10/12/2018] [Indexed: 06/10/2023]
Abstract
A one-pot microwave-assisted aza-Friedel-Crafts arylation of N-acyliminium ions, generated in situ from o-formyl carbamates and different amines, is reported. This metal-free protocol provides rapid access to diverse 4-aryl 3,4-dihydroquinazolinones in excellent yield without any aqueous workup. A solvent-directed process for the selective aza-Friedel-Crafts arylation of electron-rich aryl/heteroaryl/butenyl-tethered N-acyliminium ions is also described.
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5
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El-Hashash MA, El-Naggar AM, El-Bordany EA, Marzouk MI, Nawar TMS. 6-Iodo-2-isopropyl-4H-3,1-benzoxazin-4-one as building block in heterocyclic synthesis. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1244272] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Maher A. El-Hashash
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Abeer M. El-Naggar
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Eman A. El-Bordany
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Magda I. Marzouk
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Tarek M. S. Nawar
- Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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6
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Synthetic strategy with representation on mechanistic pathway for the therapeutic applications of dihydroquinazolinones. Eur J Med Chem 2016; 123:596-630. [DOI: 10.1016/j.ejmech.2016.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 08/01/2016] [Accepted: 08/01/2016] [Indexed: 01/25/2023]
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7
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Sawant RT, Stevens MY, Sköld C, Odell LR. Microwave-Assisted Branching Cascades: A Route to Diverse 3,4-Dihydroquinazolinone-Embedded Polyheterocyclic Scaffolds. Org Lett 2016; 18:5392-5395. [DOI: 10.1021/acs.orglett.6b02774] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Rajiv T. Sawant
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Marc Y. Stevens
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Christian Sköld
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
| | - Luke R. Odell
- Organic
Pharmaceutical Chemistry,
Department of Medicinal Chemistry, Uppsala Biomedical Center, Uppsala University, P.O.
Box 574, SE-751 23 Uppsala, Sweden
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8
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Sawant RT, Stevens MY, Odell LR. Rapid Access to Polyfunctionalized 3,4-Dihydroquinazolinones through a SequentialN-Acyliminium Ion Mannich Reaction Cascade. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501178] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Stevens MY, Wieckowski K, Wu P, Sawant RT, Odell LR. A microwave-assisted multicomponent synthesis of substituted 3,4-dihydroquinazolinones. Org Biomol Chem 2015; 13:2044-54. [PMID: 25518892 DOI: 10.1039/c4ob02417f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of structurally diverse 3,4-dihydroquinazolinones was synthesized via a novel cascade imine/cyclization/aza-Henry reaction in moderate to excellent yields.
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Affiliation(s)
- Marc Y. Stevens
- Organic Pharmaceutical Chemistry
- Department of Medicinal Chemistry
- Uppsala Biomedical Center
- Uppsala University
- SE-751 23 Uppsala
| | - Krzysztof Wieckowski
- Organic Pharmaceutical Chemistry
- Department of Medicinal Chemistry
- Uppsala Biomedical Center
- Uppsala University
- SE-751 23 Uppsala
| | - Peng Wu
- Organic Pharmaceutical Chemistry
- Department of Medicinal Chemistry
- Uppsala Biomedical Center
- Uppsala University
- SE-751 23 Uppsala
| | - Rajiv T. Sawant
- Organic Pharmaceutical Chemistry
- Department of Medicinal Chemistry
- Uppsala Biomedical Center
- Uppsala University
- SE-751 23 Uppsala
| | - Luke R. Odell
- Organic Pharmaceutical Chemistry
- Department of Medicinal Chemistry
- Uppsala Biomedical Center
- Uppsala University
- SE-751 23 Uppsala
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10
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I. Marzouk M, A. Farghaly T, A. El-Hashash M, A. Shaker S, M. Hussein S. Transformation of Benzoxazinone Derivatives to Some Interesting Heterocyclic Compounds with Expected Biological Activity. HETEROCYCLES 2015. [DOI: 10.3987/com-15-13218] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Synthesis of 2,3-dihydroquinazolin-4(1H)-ones catalyzed by succinimide-N-sulfonic acid as a mild and efficient catalyst. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1447-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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