1
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Biswas S, Roy A, Duari S, Maity S, Elsharif AM, Biswas S. Brønsted acid-catalyzed regioselective ring opening of 2 H-azirines by 2-mercaptopyridines and related heterocycles; one pot access to imidazo[1,2- a]pyridines and imidazo[2,1- b]thiazoles. Org Biomol Chem 2024; 22:4697-4703. [PMID: 38775270 DOI: 10.1039/d4ob00410h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
A catalytic and versatile synthetic method for the synthesis of imidazo[1,2-a]pyridines has been developed. Brønsted acid-catalysis plays a major role in the regioselective ring opening of 2H-azirines. Nucleophilic attack via the N-centre of mercaptopyridines and their analogues, followed by cyclisation by cleaving the C-S bond, allowed a library of imidazo[1,2-a]pyridines and related heterocycles to be built. The reaction protocol has been applied to various 2H-azirines, 2-mercaptopyridines, and thiazole-2-thiols, illustrating the generality of reaction conditions. The practical applications include the synthesis of pharmaceuticals, such as anti-tumor agents. This study introduces a novel approach to the synthesis of functional molecules with extensive potential.
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Affiliation(s)
- Subrata Biswas
- Dept. of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Arnab Roy
- Dept. of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Surajit Duari
- Dept. of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Srabani Maity
- Dept. of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Asma M Elsharif
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Srijit Biswas
- Dept. of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
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2
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Hu H, Liu Y, Wang B, Fan S, Deng R, Pu X, Huang Y. Catalysts-Controlled Roles Exchange between 2,3-Diaryl-2 H-azirines and Acetone: Chemodivergent Synthesis of Pyrroles and 3-Oxazolines. J Org Chem 2024; 89:6064-6073. [PMID: 38604997 DOI: 10.1021/acs.joc.4c00012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
We report two practical and step-economical methodologies for the chemodivergent synthesis of tri-substituted pyrroles and 3-oxazolines from the domino reactions of 2H-azirines and acetone. For instance, acetone served as a nucleophile to react with 2H-azirines under the basic conditions to furnish pyrroles. Upon changing the catalyst to TfOH, acetone served as an electrophile to synthesize 3-oxazolines. Moreover, the products could be synthesized on a gram scale, and the possible catalytic cycles were proposed.
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Affiliation(s)
- Haipeng Hu
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Yangu Liu
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Beining Wang
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Shangyi Fan
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Rui Deng
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Xiang Pu
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
| | - Yu Huang
- College of Science, Sichuan Agricultural University, Ya'an, Sichuan 625014 China
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3
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Zhang H, Li M, Wang K, Chen Y, Liao B, Wang Q, Yi W. An Accesss to 4,5,6-Trisubstituted Pyrimidines from 2 H-Azirines and α-Isocyanoacetates or α-Isocyanoacetamides Enabled by 1,3-Dipolar [3 + 2] Cycloaddition/Ring-Expanding/Oxidative Aromatization Process. J Org Chem 2024; 89:1692-1702. [PMID: 38207341 DOI: 10.1021/acs.joc.3c02378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
The products containing pyrimidine scaffolds exhibit various important physiological and biological activities. To date, the strategies to generate 4,5,6-trisubstituted pyrimidines were not reported. Here, a copper-catalyzed reaction of 2H-azirines with α-isocyanoacetates or α-isocyanoacetamides has been developed, rapidly preparing 4,5,6-trisubstituted pyrimidines. The mechanistic results reveal that this strategy underwent a formal 1, 3-dipolar [3 + 2] cycloaddition/ring-expanding/oxidative aromatization procedure to construct the desired pyrimidines.
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Affiliation(s)
- Haoxiang Zhang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Mengfan Li
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Kunpeng Wang
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Yan Chen
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Benren Liao
- Shanghai No.4 Reagent Chemical Co., Ltd. Shanghai 201512, P. R. China
| | - Qingwei Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China
| | - Weiyin Yi
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, P. R. China
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4
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Wei H, Cao Y, Zhao C, Shao Z, Huo X, Pan J, Zhuang R. Design, synthesis, and anticancer evaluation of alkynylated pyrrole derivatives. Chem Biol Drug Des 2024; 103:e14484. [PMID: 38355143 DOI: 10.1111/cbdd.14484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/15/2024] [Accepted: 01/30/2024] [Indexed: 02/16/2024]
Abstract
A series of alkynylated pyrrole derivatives were meticulously designed, drawing inspiration from the structure of 3-alkynylpyrrole-2,4-dicarboxylates, which were synthesized via a cyclization process involving methylene isocyanides and propiolaldehydes under mild conditions. These derivatives were subsequently subjected to evaluation for their anticancer properties against a panel of cell lines, including U251, A549, 769-P, HepG2, and HCT-116. According to the detailed analysis of structure-activity relationship, compound 12l emerged as the most promising molecule, with IC50 values of 2.29 ± 0.18 and 3.49 ± 0.30 μM toward U251 and A549 cells, respectively. Subsequent mechanistic investigations revealed that compound 12l exerts its effects by arresting the cell cycle in the G0/G1 phase and inducing apoptosis specifically in A549 cells. These innovative alkynylated pyrrole derivatives hold the potential to serve as a valuable template for the discovery of novel anticancer molecules.
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Affiliation(s)
- Hegeng Wei
- Zhejiang Yongtai Technol Co. Ltd, Taizhou, China
| | - Yu Cao
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, China
| | - Chungang Zhao
- Medical Department of Jingchu University of Technology, Jingmen, China
| | | | - Xiaoli Huo
- Hangzhou Zhongmei Huadong Pharmaceutical Co. Ltd, Hangzhou, China
| | - Jinming Pan
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, China
| | - Rangxiao Zhuang
- Department of Pharmaceutical Preparation, Hangzhou Xixi Hospital, Hangzhou, China
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5
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Roy A, Biswas S, Duari S, Maity S, Mishra AK, Souza ARD, Elsharif AM, Morgon NH, Biswas S. Regioselective Transition Metal-Free Catalytic Ring Opening of 2 H-Azirines by Phenols and Naphthols; One-Pot Access to Benzo- and Naphthofurans. J Org Chem 2023; 88:15580-15588. [PMID: 37933871 DOI: 10.1021/acs.joc.3c01266] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Benzofuran and naphthofuran derivatives are synthesized from readily available phenols and naphthols. Regioselective ring openings of 2H-azirine followed by in situ aromatization using a catalytic amount of Brønsted acid have established the novelty of the methodology. The involvement of a series of 2H-azirines with a variety of phenols, 1-naphthols, and 2-naphthols showed the generality of the protocol. In-depth density functional theory calculations revealed the reaction mechanism with the energies of the intermediates and transition states of a model reaction. An alternate pathway of the mechanism has also been proposed with computer modeling.
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Affiliation(s)
- Arnab Roy
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, West Bengal, India
| | - Subrata Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, West Bengal, India
| | - Surajit Duari
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, West Bengal, India
| | - Srabani Maity
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, West Bengal, India
| | - Abhishek Kumar Mishra
- Department of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow 226031, Uttar Pradesh, India
| | - Aguinaldo R de Souza
- Department of Chemistry, School of Science, São Paulo State University, Bauru 17033-360, São Paulo, Brazil
| | - Asma M Elsharif
- Department of Chemistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Nelson H Morgon
- Department of Physical Chemistry, Institute of Chemistry, Campinas State University, Campinas 13083-970, São Paulo, Brazil
| | - Srijit Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, West Bengal, India
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6
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Wang L, Liu C, Li L, Wang X, Sun R, Zhou M, Wang H. Visible‐Light‐Promoted
[3 + 2] Cycloaddition of
2
H
‐Azirines
with Quinones: Access to Substituted Benzo[
f
]isoindole‐4,9‐diones. CHINESE J CHEM 2022. [DOI: 10.1002/cjoc.202100728] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Lijia Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Chuang Liu
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Lei Li
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Xin Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Ran Sun
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - Ming‐Dong Zhou
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
| | - He Wang
- School of Petrochemical Engineering Liaoning Petrochemical University Fushun Liaoning 113001 China
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7
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Zhou Z, Yue Q, Zhao Y. A DFT Study on the Binuclear Copper(I)-Catalyzed Synthesis Mechanism of 1,2,3-Triazolo[1,5-c]Pyrimidine via Interrupted Click and Ketenimine Rearrangement. Chemphyschem 2021; 23:e202100751. [PMID: 34799971 DOI: 10.1002/cphc.202100751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/19/2021] [Indexed: 11/06/2022]
Abstract
In this paper, the mechanism of the full catalytic cycle for binuclear Cu(I)-catalyzed sulfonyl azide-alkyne cycloaddition reaction for the synthesis of triazolopyrimidines was rationalized by density functional theoretical (DFT) calculations. The computed reaction route consists of: (a) formation of dicopper intermediates, including C-H activation of terminal alkyne, 3+2 ring cycloaddition and ring-reducing reaction and transmetalation, (b) interrupted CuAAC reaction, including di-copper catalyzed ring-opening of 2H-azirines and C-C bond formation to generate the copper-triazoles and -ketenimines, (c) two-step C-N cross-coupling and following (d) multi-step hydrogen transfer by the hydrogen bonding chain of water to promote the C-N formation and another C-N cleavage through the removal of p-tolyl sulfonamides. Our DFT results indicate that the multi-step hydrogen transfer process is the rate-determining step along the potential energy surface profile. The explicit water model was used for systematic determination of barrier for C-C cross-coupling, C-N bond formation and cleavage, and p-tolylsulfonamide removal. A critical insight in the interrupted CuAAC reaction was proposed. Further prediction interprets H2 O hydrogen bond chain plays an important role in C-N bond formation and cleavage, and the removal of p-tolylsulfonamide. This may have fundamental guidance on the design of 1, 5-herterocyclic functionalized triazolopyrimidines via interrupted CuAAC rearrangement reaction, as well as hydrogen bond chain of water.
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Affiliation(s)
- Zhaoman Zhou
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China.,Office of Academic Research, Guangxi Modern Polytechnic College, Hechi, 547000, China
| | - Qianqian Yue
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yanying Zhao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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8
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Zhao Y, Guo X, Zhang R, Li S, Chen T, Sun X. CF 3CO 2H-Catalyzed Synthesis of 3-Alkynylpyrrole Derivatives and Their Controlled Reduction. J Org Chem 2021; 86:15568-15576. [PMID: 34648289 DOI: 10.1021/acs.joc.1c02078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A transition-metal-free methodology employing nitroenynes and enaminones has been developed to access 3-alkynylpyrrole derivatives. This mild cyclization reaction might proceed through the nucleophilic addition, intramolecular cyclization, and the subsequent elimination processes. The protocol features a broad substrate scope, good selectivity, and functional group tolerance. Notably, the advantage of this method is also highlighted by the controlled reduction to generate alkenyl- or alkylpyrrole derivatives in good to excellent yields.
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Affiliation(s)
- Yulei Zhao
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuqiang Guo
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Ruihua Zhang
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Shuai Li
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Tingting Chen
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xuejun Sun
- Shandong Key Laboratory of Life-Organic Analysis, Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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9
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Sujatha C, Nallagangula M, Namitharan K. Harnessing In Situ Radical Oxygenation: Copper-Catalyzed Interrupted Azirine-Alkyne Ring-Expansion Reaction for the Synthesis of Pyrrolones. Org Lett 2021; 23:4219-4223. [PMID: 34010563 DOI: 10.1021/acs.orglett.1c01162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here we report a novel interrupted azirine-alkyne ring-expansion reaction with molecular oxygen for the direct synthesis of highly functionalized pyrrolones enabled by copper catalysis. Mechanistic investigations indicate that the present three-component reaction proceeds via two copper-catalyzed sequential reactions, an azirine-ring-opening alkynylation and an amine-directed radical oxygenation, leading to the formation of interesting pyrrolone structures under mild conditions.
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Affiliation(s)
- Chandragiri Sujatha
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute and Department of Chemistry, SRMIST, Kattankulathur 603 203, Tamil Nadu, India
| | - Madhu Nallagangula
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute and Department of Chemistry, SRMIST, Kattankulathur 603 203, Tamil Nadu, India
| | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute and Department of Chemistry, SRMIST, Kattankulathur 603 203, Tamil Nadu, India.,Amity Institute of Click Chemistry Research and Studies, Amity University, Noida 201 301, Uttar Pradesh, India
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10
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Acetyl oxime/azirine 1, 3-dipole and strategy for the regioselective synthesis of polysubstituted pyrroles via [3 + 2] cycloaddition with alkyne utilizing Fe2O3@cellulose catalyst. RESULTS IN CHEMISTRY 2021. [DOI: 10.1016/j.rechem.2021.100201] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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11
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Huo X, Chen X, Yu L, Zhang C, Zeng L, Zhu H, Shao J, Fu L, Zhang J. Transition-metal-free and facile synthesis of 3-alkynylpyrrole-2,4-dicarboxylates from methylene isocyanides and propiolaldehyde. NEW J CHEM 2021. [DOI: 10.1039/d1nj03596g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A transition-metal-free, facile and efficient method for the synthesis of 3-alkynylpyrrole-2,4-dicarboxylates was developed.
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Affiliation(s)
- Xiaoli Huo
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Xiaojuan Chen
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
| | - Liya Yu
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
| | - Chong Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Linghui Zeng
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Huajian Zhu
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Jiaan Shao
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
| | - Liping Fu
- Department of Pharmacy, Shaoxing Hospital of Traditional Chinese Medicine, Shaoxing, Zhejiang 312000, PR China
| | - Jiankang Zhang
- School of Medicine, Zhejiang University City College, Hangzhou, Zhejiang 310015, PR China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, PR China
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12
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Okamoto K, Eguchi A, Ohe K. Chemistry of 2H-Azirines from Old to New — Selective Synthesis and Transformation. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
| | | | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
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13
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Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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14
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Hu H, Wang C, Lai H, Wang S, Ni H, Yu W, Cao P. The Fe(iii)-catalyzed decarboxylative cycloaddition of β-ketoacids and 2H-azirines for the synthesis of pyrrole derivatives. Org Chem Front 2020. [DOI: 10.1039/d0qo00951b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An Fe(iii)-catalyzed Mannich/decarboxylative ring expansion reaction to generate pyrrole derivatives has been achieved using Fe(OTf)3 as the catalyst. A series of pyrrole derivatives was obtained in moderate to excellent yields.
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Affiliation(s)
- Haipeng Hu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Cuilin Wang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Han Lai
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Siyuan Wang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Hailiang Ni
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Wenhao Yu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
| | - Peng Cao
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu 610068
- China
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15
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Zhang J, Yang M, Liu JB, He FS, Wu J. A copper-catalyzed insertion of sulfur dioxide via radical coupling. Chem Commun (Camb) 2020; 56:3225-3228. [DOI: 10.1039/d0cc00375a] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A copper-catalyzed reaction of O-acyl oximes, DABCO·(SO2)2, and 2H-azirines is developed under mild conditions, leading to diverse tetrasubstituted β-sulfonyl N-unprotected enamines with excellent stereoselectivity and regioselectivity.
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Affiliation(s)
- Jun Zhang
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- China
| | - Min Yang
- School of Pharmacy
- Gannan Medical University
- Ganzhou 341000
- China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Fu-Sheng He
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- China
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- China
- State Key Laboratory of Organometallic Chemistry
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16
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Li W, Usman M, Wu LY, Liu WB. Synthesis of 2,3-Ring Fused Pyrroles via Cu-Catalyzed 5- exo-dig Annulation of Alkyne-Tethered Enaminones. J Org Chem 2019; 84:15754-15763. [PMID: 31696709 DOI: 10.1021/acs.joc.9b02672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper-catalyzed annulation of alkyne-tethered enaminones for the synthesis of 2,3-ring fused pyrroles is reported. The 5-exo-dig cyclization/olefin migration reaction delivers the multisubstituted pyrroles in 59-99% yields with 16 examples. This strategy features easily available starting materials, mild reaction conditions, and a cheap ligand-free copper catalyst. The atom-economic transformation provides a simple access to a variety of synthetic useful pyrroles and their derivatives.
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Affiliation(s)
- Weishuang Li
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Muhammad Usman
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Lin-Yang Wu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Wen-Bo Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
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17
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Yilmaz ES, Zora M. A New Strategy for the Synthesis of 4‐Propargyl‐Substituted 1
H
‐Pyrroles from
N
‐(5‐phenyl‐2,4‐pentadiynyl) β‐Enaminones. ChemistrySelect 2019. [DOI: 10.1002/slct.201902759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Elif Serel Yilmaz
- Department of ChemistryMiddle East Technical University 06800 Ankara Turkey
| | - Metin Zora
- Department of ChemistryMiddle East Technical University 06800 Ankara Turkey
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18
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Pleschka D, Uebing M, Lange M, Hepp A, Wübker AL, Hansen MR, Würthwein EU, Uhl W. Al/P- and Ga/P-Based Frustrated Lewis Pairs and Electronically Unsaturated Substrates: Ring Cleavage and Ring Closure, C-C and C-N Bond Formation. Chemistry 2019; 25:9315-9325. [PMID: 31081975 DOI: 10.1002/chem.201901659] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Indexed: 12/20/2022]
Abstract
Al/P- and Ga/P-based frustrated Lewis pairs (FLPs) reacted with an azirine under mild conditions under cleavage of the heterocycle on two different positions. Opening of the C-C bond yielded an unusual nitrile-ylide adduct in which a C-N moiety coordinated to the FLP backbone. Cleavage of a C-N bond afforded the thermodynamically favored enamine adduct with the N atom bound to P and Al or Ga atoms. Ring closure was observed upon treatment of an Al/P FLP with electronically unsaturated substrates (4-(1-cyclohexenyl)-1-aza-but-1-en-3-ynes) and yielded by C-N bond formation hexahydroquinoline derivatives, which coordinated to the FLP through P-C and Al-C bonds. Diphenylcyclopropenone showed a diverse reactivity, which depending on steric shielding and the polarizing effect of Al or Ga atoms afforded different products. An AltBu2 /P FLP yielded an adduct with the C=O group coordinated to P and Al. The dineopentyl derivative gave an equilibrium mixture consisting of a similar product and a simple adduct with O bound to Al and a three-coordinate P atom. Both compounds co-crystallize. The Ga/P FLP only formed the simple adduct with the same substrate. Rearrangement resulted in all cases in C3 -ring cleavage and migration of a mesityl group from P to a former ring C atom by C-C bond formation. Diphenylthiocyclopropenone (evidence for the presence of P=C bonds) and an imine derivative afforded similar products.
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Affiliation(s)
- Damian Pleschka
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Marten Uebing
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Merten Lange
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Anna-Lena Wübker
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-Chemisches Institut and Center for Multiscale Theory, and Computation (CMTC), Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany
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19
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Sakharov PA, Rostovskii NV, Khlebnikov AF, Khoroshilova OV, Novikov MS. Transition Metal‐Catalyzed Synthesis of 3‐Coumaranone‐Containing NH‐Aziridines from 2
H
‐Azirines: Nickel(II) versus Gold(I). Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pavel A. Sakharov
- Saint Petersburg State UniversityInstitute of Chemistry 7/9 Universitetskaya nab. St. Petersburg 199034 Russia
| | - Nikolai V. Rostovskii
- Saint Petersburg State UniversityInstitute of Chemistry 7/9 Universitetskaya nab. St. Petersburg 199034 Russia
| | - Alexander F. Khlebnikov
- Saint Petersburg State UniversityInstitute of Chemistry 7/9 Universitetskaya nab. St. Petersburg 199034 Russia
| | - Olesya V. Khoroshilova
- Saint Petersburg State UniversityCenter for X-ray Diffraction Studies, Research Park Universitetskiy pr. 26 St. Petersburg, Petrodvoretz 198504 Russia
| | - Mikhail S. Novikov
- Saint Petersburg State UniversityInstitute of Chemistry 7/9 Universitetskaya nab. St. Petersburg 199034 Russia
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20
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Khlebnikov AF, Novikov MS, Rostovskii NV. Advances in 2H-azirine chemistry: A seven-year update. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.03.040] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Cen J, Wu Y, Li J, Huang L, Wu W, Zhu Z, Yang S, Jiang H. Switchable Reactivity between Vinyl Azides and Terminal Alkyne by Nano Copper Catalysis. Org Lett 2019; 21:2090-2094. [PMID: 30869904 DOI: 10.1021/acs.orglett.9b00373] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel nano copper-catalyzed substrate-dependent chemodivergent transformation of vinyl azides with a terminal alkyne is disclosed. 2,5-Disubstituted pyrroles were selectively obtained in high yield with aryl alkynes and aliphatic alkynes, whereas 2,3,4-trisubstituted pyrroles were formed with silylated alkynes. This switchable method provides a controllable and facile access to both multisubstituted pyrrole scaffolds with high efficiency, excellent regioselectivity, and good functional group compatibility.
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Affiliation(s)
- Jinghe Cen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Yaodan Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Liangbin Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Zhongzhi Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Shaorong Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , P. R. China
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22
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Yamamoto Y. Theoretical Study on the Transition-Metal-Catalyzed Cycloadditions of 2H-Azirines with Alkynes: Implication of Carbenoid Intermediates. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, Aichi 464-8601, Japan
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23
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Wu Y, Tian B, Witzel S, Jin H, Tian X, Rudolph M, Rominger F, Hashmi ASK. AuBr 3 -Catalyzed Chemoselective Annulation of Isocyanates with 2H-Azirine. Chemistry 2019; 25:4093-4099. [PMID: 30370953 DOI: 10.1002/chem.201804765] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Indexed: 01/19/2023]
Abstract
The chemoselective cyclization of isocyanates with 2H-azirine was achieved with AuBr3 as catalyst. This transfer sets the stage for the synthesis of aromatic oxazole-ureas in a tandem process. The addition of a catalytic amount of phosphite enhances the process enormously. The reaction can also be performed in a one-pot process using benzoyl azide instead of isocyanate under the same conditions. A detailed study on the role of the phosphite that was applied as an additive revealed that only non-coordinated phosphite can reduce gold(III) and that gold(I) coordinated phosphite is not oxidized. Accompanied by the reduction of gold, HBr is generated in situ, which turned out to be the actual promotor in combination with the remaining AuBr3 . The positive effect of acid can be explained by a strong N-Au coordination, which tends to break more easily in the presence of small amount of protic acid in the reaction solution.
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Affiliation(s)
- Yufeng Wu
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Bing Tian
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Sina Witzel
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Hongming Jin
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Xianhai Tian
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University (KAU), 21589, Jeddah, Saudi Arabia
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24
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Xu F, Si XJ, Song YY, Wang XD, Liu CS, Geng PF, Du M. Palladium-Catalyzed C–N Bond Cleavage of 2H-Azirines for the Synthesis of Functionalized α-Amido Ketones. J Org Chem 2019; 84:2200-2208. [DOI: 10.1021/acs.joc.8b03193] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Fen Xu
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Xiao-Ju Si
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Yuan-Yuan Song
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Xing-Dong Wang
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Chun-Sen Liu
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Peng-Fei Geng
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Miao Du
- College of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China
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25
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He X, Yue X, Zhang L, Wu S, Hu M, Li JH. Multiple-functionalizations of terminal alkynes with sodium sulfinates and tert-butyl nitrite: facile synthesis of 2H-azirines. Chem Commun (Camb) 2019; 55:3517-3520. [DOI: 10.1039/c9cc00625g] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A new, catalyst-free tandem annulation route to 2,2-disulfonyl-2H-azirines via multiple-functionalizations of terminal alkynes with sodium sulfinates and tert-butyl nitrite is described.
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Affiliation(s)
- Xingyi He
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Xin Yue
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Lei Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Shuang Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ming Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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26
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Shimbayashi T, Sasakura K, Eguchi A, Okamoto K, Ohe K. Recent Progress on Cyclic Nitrenoid Precursors in Transition-Metal-Catalyzed Nitrene-Transfer Reactions. Chemistry 2018; 25:3156-3180. [PMID: 30183111 DOI: 10.1002/chem.201803716] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Indexed: 12/20/2022]
Abstract
Nitrene-transfer reactions are powerful synthetic tools for the direct incorporation of nitrogen atoms into organic molecules. The discovery of novel nitrene-transfer reactions has been dominantly supported not only by improvements in transition-metal catalysts but also by the employment of novel precursors of nitrenoids. Since pioneering work involving the use of organic azides and iminoiodinanes as practical synthetic tools for nitrogen-containing compounds was reported, a new approach using various N-heterocycles containing strain energy or a weak bond has emerged. In this review, we briefly summarize the history of nitrene-transfer chemistry from the viewpoint of its precursors. In particular, the use of N-heterocycles such as 2H-azirines, 1,4,2-dioxazol-5-ones, 1,2,4-oxadiazol-5-ones, isoxazol-5(4H)-ones, and isoxazoles is comprehensively described, showing the recent remarkable progress in this chemistry.
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Affiliation(s)
- Takuya Shimbayashi
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kohei Sasakura
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Akira Eguchi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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27
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Wang M, Hou J, Yu W, Chang J. Synthesis of 2 H-Azirines via Iodine-Mediated Oxidative Cyclization of Enamines. J Org Chem 2018; 83:14954-14961. [PMID: 30474371 DOI: 10.1021/acs.joc.8b02022] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A facile and practical oxidative cyclization reaction of enamines to 2 H-azirines has been developed, employing molecular iodine. The features of the present synthetic approach include no use of transition metals, mild reaction conditions, and simplicity of operation. Under the optimal reaction conditions, a variety of 2 H-azirine derivatives were synthesized from simple and readily accessible enamine precursors in an efficient and scalable fashion.
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Affiliation(s)
- Manman Wang
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , People's Republic of China
| | - Jiao Hou
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , People's Republic of China
| | - Wenquan Yu
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , People's Republic of China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , People's Republic of China
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28
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Li C, Yuan J, Zhang Q, Bhujanga Rao C, Zhang R, Zhao Y, Deng B, Dong D. Oxidative Cyclization of β-Aminoacrylamides Mediated by PhIO: Chemoselective Synthesis of Isoxazoles and 2H-Azirines. J Org Chem 2018; 83:14999-15008. [DOI: 10.1021/acs.joc.8b02132] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chaoran Li
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Jingwen Yuan
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Qian Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Chitturi Bhujanga Rao
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Rui Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Yanning Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun 130103, China
| | - Bicheng Deng
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Dewen Dong
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education, Jilin Normal University, Changchun 130103, China
- CAS Key Laboratory of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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29
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Shi S, Xu K, Jiang C, Ding Z. ZnCl2-Catalyzed [3 + 2] Cycloaddition of Benzimidates and 2H-Azirines for the Synthesis of Imidazoles. J Org Chem 2018; 83:14791-14796. [DOI: 10.1021/acs.joc.8b02437] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shoujie Shi
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Kang Xu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Cheng Jiang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhenhua Ding
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
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30
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Sujatha C, Bhatt CS, Ravva MK, Suresh AK, Namitharan K. Copper-Catalyzed Ring-Expansion Cascade of Azirines with Alkynes: Synthesis of Multisubstituted Pyridines at Room Temperature. Org Lett 2018; 20:3241-3244. [PMID: 29757655 DOI: 10.1021/acs.orglett.8b01090] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first intermolecular ring-expansion cascade of azirines with alkynes for the synthesis of pyridines, enabled by a copper/triethylamine catalytic system via simultaneous generation and utilization of yne-enamine and skipped-yne-imine intermediates, is reported. Experimental as well as computational mechanistic studies revealed that the role of triethylamine is crucial in deciding the reaction pathway toward the pyridine products. This process offers a novel, one-step, direct, and practical strategy for the rapid construction of highly substituted pyridines under exceedingly mild conditions, and an installed alkyne functionality.
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Affiliation(s)
- Chandragiri Sujatha
- Organic Synthesis and Catalysis Laboratory , SRM Research Institute, SRM Institute of Science and Technology , Chennai - 603203 , India
| | | | | | | | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory , SRM Research Institute, SRM Institute of Science and Technology , Chennai - 603203 , India.,SRM University-AP , Amaravati - 522502 , India
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31
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Zhao MN, Ren ZH, Yang DS, Guan ZH. Iron-Catalyzed Radical Cycloaddition of 2H-Azirines and Enamides for the Synthesis of Pyrroles. Org Lett 2018; 20:1287-1290. [DOI: 10.1021/acs.orglett.7b04007] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Mi-Na Zhao
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China
| | - Zhi-Hui Ren
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
| | - De-Suo Yang
- Shaanxi
Key Laboratory of Phytochemistry, College of Chemistry and Chemical
Engineering, Baoji University of Arts and Sciences, Baoji 721013, P. R. China
| | - Zheng-Hui Guan
- Key Laboratory of Synthetic and Nature Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi’an 710127, P. R. China
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32
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Maity P, Kundu D, Ghosh T, Ranu BC. Copper catalyzed cyanation through CC bond cleavage of gem-aryl dibromide followed by second cyanation of iodoarene by a released CN unit. Org Chem Front 2018. [DOI: 10.1039/c8qo00108a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach for the synthesis of aryl cyanides through CC cleavage of styrenyl gem-dibromide has been achieved.
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Affiliation(s)
- Pintu Maity
- Department of Organic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Debasish Kundu
- Department of Organic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Tubai Ghosh
- Department of Organic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
| | - Brindaban C. Ranu
- Department of Organic Chemistry
- Indian Association for the Cultivation of Science
- Kolkata 700032
- India
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33
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Okamoto K, Nanya A, Eguchi A, Ohe K. Asymmetric Synthesis of 2H
-Azirines with a Tetrasubstituted Stereocenter by Enantioselective Ring Contraction of Isoxazoles. Angew Chem Int Ed Engl 2017; 57:1039-1043. [DOI: 10.1002/anie.201710920] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Atsushi Nanya
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Akira Eguchi
- 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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34
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Okamoto K, Nanya A, Eguchi A, Ohe K. Asymmetric Synthesis of 2H
-Azirines with a Tetrasubstituted Stereocenter by Enantioselective Ring Contraction of Isoxazoles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710920] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Atsushi Nanya
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku Kyoto 615-8510 Japan
| | - Akira Eguchi
- 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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35
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Rieckhoff S, Titze M, Frey W, Peters R. Ruthenium-Catalyzed Synthesis of 2H-Azirines from Isoxazolinones. Org Lett 2017; 19:4436-4439. [DOI: 10.1021/acs.orglett.7b01895] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Stefan Rieckhoff
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Marvin Titze
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische
Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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36
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Melekhova AA, Novikov AS, Rostovskii NV, Sakharov PA, Panikorovskii TL, Bokach NA. Open-chain hemiketal is stabilized by coordination to a copper (II). INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.03.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Wang H, Ren Y, Wang K, Man Y, Xiang Y, Li N, Tang B. Visible light-induced cyclization reactions for the synthesis of 1,2,4-triazolines and 1,2,4-triazoles. Chem Commun (Camb) 2017; 53:9644-9647. [DOI: 10.1039/c7cc04911k] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
1,2,4-Triazolines and 1,2,4-triazoles can be synthesized under visible light in one step without additional operations, which can be also scaled up to a gram-level.
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Affiliation(s)
- Hongyu Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yanfei Ren
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Kaiye Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yunquan Man
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Yanan Xiang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Na Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Bo Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
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38
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Li T, Yan H, Li X, Wang C, Wan B. Ruthenium-Catalyzed [3 + 2] Cycloaddition of 2H-Azirines with Alkynes: Access to Polysubstituted Pyrroles. J Org Chem 2016; 81:12031-12037. [DOI: 10.1021/acs.joc.6b02322] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Tengfei Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Yan
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xincheng Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
| | - Chunxiang Wang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
| | - Boshun Wan
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
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39
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Okamoto K, Shimbayashi T, Yoshida M, Nanya A, Ohe K. Synthesis of 2H
-Azirines by Iridium-Catalyzed Decarboxylative Ring Contraction of Isoxazol-5(4H
)-ones. Angew Chem Int Ed Engl 2016; 55:7199-202. [DOI: 10.1002/anie.201602241] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Indexed: 01/27/2023]
Affiliation(s)
- Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Takuya Shimbayashi
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Masato Yoshida
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Atsushi Nanya
- 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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40
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Okamoto K, Shimbayashi T, Yoshida M, Nanya A, Ohe K. Synthesis of 2H
-Azirines by Iridium-Catalyzed Decarboxylative Ring Contraction of Isoxazol-5(4H
)-ones. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602241] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Takuya Shimbayashi
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Masato Yoshida
- Department of Energy and Hydrocarbon Chemistry; Graduate School of Engineering; Kyoto University, Katsura, Nishikyo-ku; Kyoto 615-8510 Japan
| | - Atsushi Nanya
- 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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41
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Li T, Xu F, Li X, Wang C, Wan B. Ruthenium-Catalyzed C−C Bond Cleavage of 2H
-Azirines: A Formal [3+2+2] Cycloaddition to Fused Azepine Skeletons. Angew Chem Int Ed Engl 2016; 55:2861-5. [DOI: 10.1002/anie.201510820] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Tengfei Li
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Fen Xu
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; 5 Dongfeng Road Zhengzhou 450002 China
| | - Xincheng Li
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Chunxiang Wang
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Boshun Wan
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
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42
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Li T, Xu F, Li X, Wang C, Wan B. Ruthenium-Catalyzed C−C Bond Cleavage of 2H
-Azirines: A Formal [3+2+2] Cycloaddition to Fused Azepine Skeletons. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510820] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tengfei Li
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Fen Xu
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; 5 Dongfeng Road Zhengzhou 450002 China
| | - Xincheng Li
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Chunxiang Wang
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
| | - Boshun Wan
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; 457 Zhongshan Road Dalian 116023 China
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43
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Zhou NN, Zhu HT, Yang DS, Guan ZH. Recent developments in the group-1B-metal-catalyzed synthesis of pyrroles. Org Biomol Chem 2016; 14:7136-49. [DOI: 10.1039/c6ob00962j] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Pyrroles are important synthetic targets as a result of their occurrence in numerous biologically active molecules, their important roles in diverse living processes, and their utility as versatile intermediates.
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Affiliation(s)
- Ni-Ni Zhou
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Hai-Tao Zhu
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
- Key Laboratory of Synthesis and Natural Functional Molecule Chemistry of Ministry of Education
| | - De-Suo Yang
- Shannxi Key Laboratory of Phytochemistry
- Baoji University of Arts and Sciences
- Baoji 721013
- China
| | - Zheng-Hui Guan
- Key Laboratory of Synthesis and Natural Functional Molecule Chemistry of Ministry of Education
- Department of Chemistry & Materials Science
- Northwest University
- Xi'an 710127
- China
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44
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Badenock JC, Gribble GW. Metal-Catalyzed Coupling with Heterocycles. ADVANCES IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/bs.aihch.2016.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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45
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Zhao Y, Wang H, Li X, Wang D, Xin X, Wan B. Selective synthesis of functionalized pyrroles from 3-aza-1,5-enynes. Org Biomol Chem 2016; 14:526-541. [DOI: 10.1039/c5ob01887k] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Three kinds of functionalized pyrroles were selectively synthesized from 3-aza-1,5-enynes via cyclization reactions.
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Affiliation(s)
- Yingying Zhao
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Haolong Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xincheng Li
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Dongping Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Xiaoyi Xin
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Boshun Wan
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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46
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Vélez Del Burgo A, Ochoa de Retana AM, de Los Santos JM, Palacios F. Reaction of 2H-Azirine-Phosphine Oxides and -Phosphonates with Enolates Derived from β-Keto Esters. J Org Chem 2015; 81:100-8. [PMID: 26640969 DOI: 10.1021/acs.joc.5b02347] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cyclopenta[b]-pyrrole-2-phosphine oxides 4a and -phosphonates 4b,c are generated by the addition of cyclic enolates derived from ethyl 2-oxo-cyclopentanecarboxylate 2 to phosphorated 2H-azirines 1. However, the addition of enolate derived from acyclic 2-oxo-butanoate 10 to 2H-azirine phosphine oxide 1 led to vinylogous N-acyl-α-aminoalkyl phosphine oxides 12, involving the carbonyl group and the Cα of the keto ester 10. Ring closure of vinylogous derivative 12 in the presence of base afforded pyrrole-2-phosphine oxide 11. The addition of enolates derived from indenone-carboxylate 15 to 2H-azirines 1 led to the formation of functionalized N-substituted 1H-benzo[d]azepine derivatives 17.
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Affiliation(s)
- Ander Vélez Del Burgo
- Departamento de Química Orgánica I, Facultad de Farmacia, Centro de Investigaciones y Estudios Avanzados "Lucio Lascaray", Universidad del País Vasco , Apartado 450, 01080 Vitoria, Spain
| | - Ana M Ochoa de Retana
- Departamento de Química Orgánica I, Facultad de Farmacia, Centro de Investigaciones y Estudios Avanzados "Lucio Lascaray", Universidad del País Vasco , Apartado 450, 01080 Vitoria, Spain
| | - Jesús M de Los Santos
- Departamento de Química Orgánica I, Facultad de Farmacia, Centro de Investigaciones y Estudios Avanzados "Lucio Lascaray", Universidad del País Vasco , Apartado 450, 01080 Vitoria, Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I, Facultad de Farmacia, Centro de Investigaciones y Estudios Avanzados "Lucio Lascaray", Universidad del País Vasco , Apartado 450, 01080 Vitoria, Spain
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47
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Rostovskii NV, Sakharov PA, Novikov MS, Khlebnikov AF, Starova GL. Cu(I)–NHC-Catalyzed (2 + 3)-Annulation of Tetramic Acids with 2H-Azirines: Stereoselective Synthesis of Functionalized Hexahydropyrrolo[3,4-b]pyrroles. Org Lett 2015; 17:4148-51. [DOI: 10.1021/acs.orglett.5b01883] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nikolai V. Rostovskii
- Institute of Chemistry, Saint-Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Pavel A. Sakharov
- Institute of Chemistry, Saint-Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Mikhail S. Novikov
- Institute of Chemistry, Saint-Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Alexander F. Khlebnikov
- Institute of Chemistry, Saint-Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Galina L. Starova
- Institute of Chemistry, Saint-Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
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48
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Xiao XY, Zhou AH, Shu C, Pan F, Li T, Ye LW. Atom-Economic Synthesis of Fully Substituted 2-Aminopyrroles via Gold-Catalyzed Formal [3+2] Cycloaddition between Ynamides and Isoxazoles. Chem Asian J 2015; 10:1854-8. [DOI: 10.1002/asia.201500447] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Xin-Yu Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
| | - Ai-Hua Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
| | - Chao Shu
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
| | - Fei Pan
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
| | - Ting Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; College of Chemistry and Chemical Engineering; Xiamen University, Xiamen; Fujian 361005 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 China
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49
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Davies PW, Garzón M. Nucleophilic Nitrenoids Through π-Acid Catalysis: Providing a Common Basis for Rapid Access into Diverse Nitrogen Heterocycles. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500170] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Paul W. Davies
- School of Chemistry; University of Birmingham; Edgbaston, Birmingham B15 2TT UK
| | - Miguel Garzón
- School of Chemistry; University of Birmingham; Edgbaston, Birmingham B15 2TT UK
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50
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Pawar SK, Sahani RL, Liu RS. Diversity in Gold-Catalyzed Formal Cycloadditions of Ynamides with Azidoalkenes or 2H-Azirines: [3+2] versus [4+3] Cycloadditions. Chemistry 2015; 21:10843-50. [DOI: 10.1002/chem.201500694] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Indexed: 11/12/2022]
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