1
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Khuntia R, Mahapatra SK, Roy L, Chandra Pan S. Structurally divergent enantioselective synthesis of benzofuran fused azocine derivatives and spiro-cyclopentanone benzofurans enabled by sequential catalysis. Chem Sci 2023; 14:10768-10776. [PMID: 37829006 PMCID: PMC10566461 DOI: 10.1039/d3sc03239f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/04/2023] [Indexed: 10/14/2023] Open
Abstract
An important objective in organic synthesis and medicinal chemistry is the capacity to access structurally varied and complex molecules rapidly and affordably from easily available starting materials. Herein, a protocol for the structurally divergent synthesis of benzofuran fused azocine derivatives and spiro-cyclopentanone benzofurans has been developed via chiral bifunctional urea catalyzed reaction between aurone-derived α,β-unsaturated imine and ynone followed by switchable divergent annulation reactions by Lewis base catalysts (DBU and PPh3) with concomitant epimerization. The skeletally diversified products were formed in high yields with high diastereo- and enantioselectivities. Computational analysis with DFT and accurate DLPNO-CCSD(T) has been employed to gain deeper insights into mechanistic intricacies and investigate the role of chiral and Lewis base catalysts in skeletal diversity.
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Affiliation(s)
- Rupkumar Khuntia
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India https://www.iitg.ac.in/span/
| | - Sanat Kumar Mahapatra
- Institute of Chemical Technology Mumbai IOC Odisha Campus Bhubaneswar Bhubaneswar 751013 India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai IOC Odisha Campus Bhubaneswar Bhubaneswar 751013 India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati Assam 781039 India https://www.iitg.ac.in/span/
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2
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Gao Y, Wang H, Chen X, Qiao Y, Miao Z. Gold and Palladium Relay Catalytic [4 + 4] Cycloadditions of Enynamides and γ-Methylene-δ-valerolactones: Diastereoselective Construction of Furan-Fused Azacyclooctanes. J Org Chem 2023; 88:11822-11833. [PMID: 37534854 DOI: 10.1021/acs.joc.3c01114] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
We report a highly efficient and diastereoselective gold and palladium sequential relay catalysis system for the synthesis of furan-fused eight-membered heterocycles. Employing a one-pot procedure, easily accessible enynamides undergo cyclization to generate azadienes in situ, which subsequently participate in diastereoselective formal [4 + 4] cycloadditions with γ-methylene-δ-valerolactones. This strategy enables the rapid and efficient construction of a series of furan-fused azacyclooctanes with diverse substituents in good yields (63-97%) and a high level of diastereoselectivity (7:1 → 20:1 dr).
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Affiliation(s)
- Yanfeng Gao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Hui Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Xiaoquan Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Yiyang Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
| | - Zhiwei Miao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Weijin Road 94, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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3
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Nakamura I, Terada M. Gold-Catalyzed Skeletal Rearrangement Reactions of O-Propargylic and O-Homopropargylic Oximes. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Nikbakht A, Amiri K, Khosravi H, Zhou Y, Balalaie S, Breit B. Copper-Catalyzed Cycloisomerization of Unactivated Allene-Tethered O-Propargyl Oximes: A Domino Reaction Sequence toward the Synthesis of Hexahydropyrrolo[3,4- b]azepin-5(4 H)-ones. Org Lett 2021; 23:3343-3348. [PMID: 33843238 DOI: 10.1021/acs.orglett.1c00837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel copper-catalyzed cycloisomerization of unactivated allene-tethered O-propargyl oximes has been developed for the synthesis of hexahydropyrrolo[3,4-b]azepin-5(4H)-ones. This one-pot domino reaction proceeds via a [2,3]-sigmatropic rearrangement, a [3 + 2] cycloaddition, and another [3,3]-sigmatropic rearrangement. The methodology offers a practical and straightforward route for the rapid assembly of both ring components of the fused bicyclic motifs from acyclic precursors by simultaneously forming four new bonds (a C═O, a C═N, and two C-C bonds) in a single step.
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Affiliation(s)
- Ali Nikbakht
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Kamran Amiri
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Hormoz Khosravi
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany.,Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran
| | - Yirong Zhou
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, Tehran 15875-4416, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran
| | - Bernhard Breit
- Institut fur Organische Chemie, Albert-Ludwigs-Universitat Freiburg Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
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5
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Zou N, Qin X, Wang Z, Shi W, Mo D. Advances on the Synthesis and Application of α,β-Unsaturated Nitrones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202109007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Nakamura I, Hirayama A, Gima S, Terada M. Exo-Cyclization: Intermolecular Methylene Transfer Sequence in Au-Catalyzed Reactions of O-Homopropargylic Oximes. Chemistry 2020; 26:15816-15820. [PMID: 32618375 DOI: 10.1002/chem.202002764] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 02/02/2023]
Abstract
The Au-catalyzed reactions of O-homopropaylic oximes afforded the 3-alkenylated isoxazolines in good to high yields. The mechanistic studies suggest that the reaction proceeds through an exo-cyclization followed by intermolecular methylene group transfer. In addition, oligomeric species of the starting material were observed in the reaction mixture by mass spectra, supporting our proposed mechanism, which proceeds through a repeated intermolecular C-C bond forming process.
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Affiliation(s)
- Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Arinobu Hirayama
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Shinya Gima
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, 9808578, Japan
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7
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Ouyang W, Rao J, Li Y, Liu X, Huo Y, Chen Q, Li X. Recent Achievements in the Rhodium‐Catalyzed Concise Construction of Medium N‐Heterocycles, Azepines and Azocines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Wensen Ouyang
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Yibiao Li
- School of Biotechnology and Health Science Wuyi University Jiangmen 529020 People's Republic of China
| | - Xiaohang Liu
- BASF Advanced Chemicals Co., Ltd. No. 300, Jiangxinsha Road 200137 Shanghai People's Republic of China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Qian Chen
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry Guangdong University of Technology No. 100 Waihuan Xi Road Guangzhou Higher Education Mega Center Guangzhou 510006 People's Republic of China
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8
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Mu Y, Yuan Y, Wang Y, Xu M, Feng Y, Zhao Y, Li Y. Synthesis of indoline-fused eight-membered azaheterocycles through Zn-catalyzed dearomatization of indoles and subsequent base-promoted C-C activation. Org Biomol Chem 2020; 18:6916-6926. [PMID: 32869825 DOI: 10.1039/d0ob01626h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cascade reaction involving the Zn-catalyzed dearomatization of indoles, base-promoted ring-expansion and intramolecular SNAr reaction has been developed. This process realized a novel, atom economical and efficient synthesis of indoline-fused eight-membered azaheterocycles in a one pot manner.
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Affiliation(s)
- Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China.
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9
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Yuan Y, Wang Y, Mu Y, Xu M, Fu S, Kong L, Li Y. Synthesis of Aza-Eight-Membered Ring-Fused Indolines Initiated by Zn-Catalyzed C2 Alkylation of Indoles and Subsequent Base-Promoted Ring Expansion. Org Lett 2020; 22:6532-6536. [PMID: 32806175 DOI: 10.1021/acs.orglett.0c02307] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A novel and efficient synthesis of aza-eight-membered ring-fused indolines has been developed. This process is realized by zinc-catalyzed C2 alkylation of indoles and subsequent base-promoted ring expansion of the newly formed six-membered ring with alkynes. Easily accessible starting materials, good functional group tolerance, and high atom economy make this procedure attractive.
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Affiliation(s)
- Yang Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Ye Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yuanyang Mu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Murong Xu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Siyi Fu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Lingkai Kong
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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10
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Li X, Wang S, Wang H, Wang W, Liu L, Chang W, Li J. Synthesis of Eight‐Membered Nitrogen Heterocycles via a Heterogeneous PtI
2
‐Catalyzed Cascade Cycloaddition Reaction of δ‐Aminoalkynes with Electron‐Deficient Alkynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xinhong Li
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Songmeng Wang
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Hongkai Wang
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Weilin Wang
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Lingyan Liu
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Weixing Chang
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
| | - Jing Li
- the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of ChemistryNankai Uiversity Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Weijin Road 94#, Nankai District Tianjin 300071 People's Republic of China
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11
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Ueda M, Yasui M, Takeda N. Synthesis of Heterocycles Utilizing N-Alkoxyimines and Amides. HETEROCYCLES 2020. [DOI: 10.3987/rev-19-918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Ivanov AV, Martynovskaya SV, Shcherbakova VS, Ushakov IA, Borodina TN, Bobkov AS, Vitkovskaya NM. Ambient access to a new family of pyrrole-fused pyrazine nitrones via 2-carbonyl- N-allenylpyrroles. Org Chem Front 2020. [DOI: 10.1039/d0qo00762e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The chemo-, regio- and stereoselective synthesis of pyrrole-fused pyrazine nitrones via the direct reaction of 2-carbonyl-N-allenylpyrroles (readily accessible from the corresponding NH-pyrroles) with hydroxyl amine hydrochloride has been developed.
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Affiliation(s)
- Andrey V. Ivanov
- Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Svetlana V. Martynovskaya
- Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Victoria S. Shcherbakova
- Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Igor A. Ushakov
- Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Tatyana N. Borodina
- Favorsky Irkutsk Institute of Chemistry
- Siberian Branch of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Alexander S. Bobkov
- Laboratory of Quantum Chemical Modeling of Molecular Systems
- Irkutsk State University
- 664003 Irkutsk
- Russian Federation
| | - Nadezhda M. Vitkovskaya
- Laboratory of Quantum Chemical Modeling of Molecular Systems
- Irkutsk State University
- 664003 Irkutsk
- Russian Federation
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13
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Boyd O, Wang G, Sokolova OO, Calow ADJ, Bertrand SM, Bower JF. Modular Access to Eight‐Membered N‐Heterocycles by Directed Carbonylative C−C Bond Activation of Aminocyclopropanes. Angew Chem Int Ed Engl 2019; 58:18844-18848. [DOI: 10.1002/anie.201910276] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/26/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Olivia Boyd
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | - Gang‐Wei Wang
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | | | | | - Sophie M. Bertrand
- GlaxoSmithKline R&DMedicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - John F. Bower
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
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14
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Boyd O, Wang G, Sokolova OO, Calow ADJ, Bertrand SM, Bower JF. Modular Access to Eight‐Membered N‐Heterocycles by Directed Carbonylative C−C Bond Activation of Aminocyclopropanes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Olivia Boyd
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | - Gang‐Wei Wang
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
| | | | | | - Sophie M. Bertrand
- GlaxoSmithKline R&DMedicines Research Centre Gunnels Wood Road Stevenage Hertfordshire SG1 2NY UK
| | - John F. Bower
- School of ChemistryUniversity of Bristol Bristol BS8 1TS UK
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15
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Nakamura I, Terada M. π-Lewis Acidic Metal-Catalyzed Skeletal Rearrangement Reactions of <i>O</i>-Propargylic Oximes. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University
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16
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Ma X, Zhang X, Xie G, Awad JM, Zhang W. One-pot diastereoselective synthesis of tetrahydroepimino-benzo[b]azocines through sequential [3+2]-cycloaddition and Staudinger-aza-Wittig reactions. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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17
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Shiga K, Gridnev ID, Terada M, Nakamura I. Au-catalyzed skeletal rearrangement of O-propargylic oximes via N-O bond cleavage with the aid of a Brønsted base cocatalyst. Chem Sci 2019; 10:5283-5289. [PMID: 31191884 PMCID: PMC6540908 DOI: 10.1039/c9sc00501c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/16/2019] [Indexed: 12/24/2022] Open
Abstract
Au-catalyzed skeletal rearrangement reaction of O-propargylic oxime proceeded via N–O bond cleavage with the aid of a Brønsted base cocatalyst.
O-Propargylic oximes that possess an electron-withdrawing aryl group on the oxime moiety undergo Au-catalyzed skeletal rearrangements via N–O bond cleavage to afford the corresponding 2H-1,3-oxazine derivatives. Our studies show that the inclusion of a Brønsted base cocatalyst not only accelerates the reaction but also switches pathways of the skeletal rearrangement reaction, realizing divergent synthesis of heterocyclic compounds. Computational studies indicate that the elimination of propargylic proton in the cyclized vinylgold intermediate is rate-determining and both electron-withdrawing substituents at the oxime moiety and base cocatalyst facilitate the proton elimination. Moreover, the protodeauration process proceeds stepwise involving N–O bond cleavage followed by recyclization to construct the oxazine core.
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Affiliation(s)
- Keigo Shiga
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Ilya D Gridnev
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Masahiro Terada
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan .
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18
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Abstract
Nitrones are important compounds and are highly useful in many aspects. The first part describes the methods for synthesis of nitrones, which are useful and environmentally friendly. Catalytic oxidations, condensations, and other useful reactions are described. The nitrones thus obtained are key intermediates for the synthesis of biologically important nitrogen compounds. The second part describes the fundamental transformations of nitrones, which will provide the strategies and means for the construction of nitrogen compounds. The reactions with nucleophiles or radicals, C-H functionalization, and various addition reactions are described. The last reactions are particularly important for highly selective carbon-carbon bond formations. 1,3-Dipolar cycloaddition reactions are excluded because the size of the review is limited and excellent reviews have been published in Chemical Reviews.
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Affiliation(s)
- Shun-Ichi Murahashi
- Department of Chemistry, Graduate School of Engineering Science , Osaka University , 1-3, Machikaneyama , Toyonaka , Osaka 560-8531 , Japan
| | - Yasushi Imada
- Department of Applied Chemistry , Tokushima University , 2-1, Minamijosanjima , Tokushima 770-8506 , Japan
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19
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Nakamura I, Terada M. Recent progress on catalytic [1,3]-oxygen rearrangement reactions from nitrogen to carbon atoms. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Ni H, Tang X, Zheng W, Yao W, Ullah N, Lu Y. Enantioselective Phosphine-Catalyzed Formal [4+4] Annulation of α,β-Unsaturated Imines and Allene Ketones: Construction of Eight-Membered Rings. Angew Chem Int Ed Engl 2017; 56:14222-14226. [DOI: 10.1002/anie.201707183] [Citation(s) in RCA: 142] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Revised: 08/12/2017] [Indexed: 12/13/2022]
Affiliation(s)
- Huanzhen Ni
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xiaodong Tang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Wenrui Zheng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Weijun Yao
- Department of chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P. R. China
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Materials; Dhahran 31261 Saudi Arabia
| | - Yixin Lu
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
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21
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Ni H, Tang X, Zheng W, Yao W, Ullah N, Lu Y. Enantioselective Phosphine-Catalyzed Formal [4+4] Annulation of α,β-Unsaturated Imines and Allene Ketones: Construction of Eight-Membered Rings. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707183] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Huanzhen Ni
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
| | - Xiaodong Tang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Wenrui Zheng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Weijun Yao
- Department of chemistry; Zhejiang Sci-Tech University; Hangzhou Zhejiang 310018 P. R. China
| | - Nisar Ullah
- Chemistry Department; King Fahd University of Petroleum and Materials; Dhahran 31261 Saudi Arabia
| | - Yixin Lu
- Graduate School for Integrative Sciences & Engineering (NGS); National University of Singapore; 28 Medical Drive 117456 Singapore Singapore
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 117543 Singapore Singapore
- National University of Singapore (Suzhou) Research Institute; 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
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22
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Shimbayashi T, Okamoto K, Ohe K. C–H Activation Induced by Oxidative Addition of N–O Bonds in Oxime Esters: Formation of Rhodacycles and Cycloaddition with Alkynes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00311] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuya Shimbayashi
- Department of Energy and
Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura,
Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuhiro Okamoto
- Department of Energy and
Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura,
Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kouichi Ohe
- Department of Energy and
Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Katsura,
Nishikyo-ku, Kyoto 615-8510, Japan
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23
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Abstract
Various vinyl ketonitrones are prepared using new strategies and were applied to synthesize heterocycles in organic synthesis.
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Affiliation(s)
- Wei-Min Shi
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Ministry of Education of China and School of Chemistry & Pharmaceutical Sciences
- Guangxi Normal University
- Guilin 541004
- China
| | - Xiao-Pan Ma
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Ministry of Education of China and School of Chemistry & Pharmaceutical Sciences
- Guangxi Normal University
- Guilin 541004
- China
| | - Gui-Fa Su
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Ministry of Education of China and School of Chemistry & Pharmaceutical Sciences
- Guangxi Normal University
- Guilin 541004
- China
| | - Dong-Liang Mo
- Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- Ministry of Education of China and School of Chemistry & Pharmaceutical Sciences
- Guangxi Normal University
- Guilin 541004
- China
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24
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West TH, Spoehrle SSM, Kasten K, Taylor JE, Smith AD. Catalytic Stereoselective [2,3]-Rearrangement Reactions. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02070] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thomas H. West
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Stéphanie S. M. Spoehrle
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Kevin Kasten
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - James E. Taylor
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
| | - Andrew D. Smith
- EaStCHEM,
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews KY16 9ST, United Kingdom
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25
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Anderson LL. Diverse Applications of Nitrones for the Synthesis of Heterocyclic Compounds. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500211] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Laura L. Anderson
- Department of Chemistry; University of Illinois at Chicago; Chicago IL 60607 USA
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26
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D'Adamio G, Parmeggiani C, Goti A, Cardona F. Gold Supported on Silica Catalyzes the Aerobic Oxidation ofN,N-Disubstituted Hydroxylamines to Nitrones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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27
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Shaw MH, Croft RA, Whittingham WG, Bower JF. Modular Access to Substituted Azocanes via a Rhodium-Catalyzed Cycloaddition-Fragmentation Strategy. J Am Chem Soc 2015; 137:8054-7. [PMID: 26090897 PMCID: PMC4508204 DOI: 10.1021/jacs.5b05215] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A short entry to substituted azocanes by a Rh-catalyzed cycloaddition-fragmentation process is described. Specifically, exposure of diverse N-cyclopropylacrylamides to phosphine-ligated cationic Rh(I) catalyst systems under a CO atmosphere enables the directed generation of rhodacyclopentanone intermediates. Subsequent insertion of the alkene component is followed by fragmentation to give the heterocyclic target. Stereochemical studies show, for the first time, that alkene insertion into rhodacyclopentanones can be reversible.
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Affiliation(s)
- Megan H Shaw
- †School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - Rosemary A Croft
- †School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - William G Whittingham
- ‡Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, United Kingdom
| | - John F Bower
- †School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
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28
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Nakamura I, Terada M. Copper-Catalyzed Skeletal Rearrangements ofO-Propargylic Oximes via Cleavage of a Carbon-Oxygen Bond. CHEM REC 2015; 15:429-44. [DOI: 10.1002/tcr.201402088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Itaru Nakamura
- Research and Analytical Center for Giant Molecules, Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Masahiro Terada
- Research and Analytical Center for Giant Molecules, Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
- Department of Chemistry, Graduate School of Science; Tohoku University; 6-3 Aramaki Aza Aoba, Aoba-ku Sendai 980-8578 Japan
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29
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Braunschweig H, Krummenacher I, Mailänder L, Rauch F. O,N,B-Containing eight-membered heterocycles by ring expansion of boroles with nitrones. Chem Commun (Camb) 2015; 51:14513-5. [DOI: 10.1039/c5cc05368d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A route to novel O,N,B-containing eight-membered rings, which represent a new structural motif in heterocyclic chemistry, was developed by ring expansion of boroles with nitrones.
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Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- Am Hubland
- Germany
| | - Ivo Krummenacher
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- Am Hubland
- Germany
| | - Lisa Mailänder
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- Am Hubland
- Germany
| | - Florian Rauch
- Institut für Anorganische Chemie
- Julius-Maximilians-Universität Würzburg
- Am Hubland
- Germany
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30
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Zhang D, Nakamura I, Terada M. Copper-catalyzed cascade transformation of O-propargylic oximes with sulfonyl azides to α,β-unsaturated N-acylamidines. Org Lett 2014; 16:5184-7. [PMID: 25226502 DOI: 10.1021/ol502541w] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Copper-catalyzed cascade transformations of O-propargylic oximes and sulfonyl azides were carried out to efficiently afford α,β-unsaturated N-acylamidines. The reaction involved the intramolecular attack of the oxime group to the ketenimine moiety that was generated in situ, followed by the cleavage of the N-O bond.
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Affiliation(s)
- Dong Zhang
- Department of Chemistry, Graduate School of Science, Tohoku University , Sendai 980-8578, Japan
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31
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Lieou Kui E, Kanazawa A, Poisson JF, Py S. Transition-Metal-Catalyzed Ring Expansion of Diazocarbonylated Cyclic N-Hydroxylamines: A New Approach to Cyclic Ketonitrones. Org Lett 2014; 16:4484-7. [DOI: 10.1021/ol502029z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Evelyn Lieou Kui
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Alice Kanazawa
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Jean-François Poisson
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
| | - Sandrine Py
- Univ. Grenoble Alpes, DCM, F-38000 Grenoble, France
- CNRS, DCM, F-38000 Grenoble, France
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