1
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Huang X, Yu AN, Yang D, Gao X, Liang ST, Pei SC, Cui HL. Iron-Catalyzed Synthesis of Peroxylpyrrolo[2,1- a]isoquinolines through Oxidative Dearomatization. J Org Chem 2023; 88:15326-15334. [PMID: 37878683 DOI: 10.1021/acs.joc.3c01824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
A mild late-stage modification of pyrrolo[2,1-a]isoquinolines was established through iron-catalyzed oxidative dearomatization and peroxidation. Peroxylated pyrroloisoquinolines have been prepared readily with hydroperoxide in low to good yields (up to 72%) at room temperature. Interestingly, the treatment of fully aromatized pyrrolo[1,2-a]quinolines under the current reaction system resulted in the formation of ring-opening products.
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Affiliation(s)
- Xiang Huang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P.R. China
| | - An-Ni Yu
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - De Yang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Xin Gao
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Shu-Ting Liang
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
| | - Shu-Chen Pei
- School of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, P.R. China
| | - Hai-Lei Cui
- College of Chemistry and Environmental Engineering, Chongqing University of Arts and Sciences, 319 Honghe Avenue, Yongchuan, Chongqing 402160, P.R. China
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2
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Leifert D, Weidlich F, Adler F, Daniliuc CG, Alasmary FA, Studer A. 2,3-Difunctionalized Indoles via Radical Acylation or Trifluoromethylation of ortho-Alkynylphenyl Isonitriles. Org Lett 2021; 24:284-288. [PMID: 34898229 DOI: 10.1021/acs.orglett.1c03916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A radical cascade to 2,3-disubstituted indoles proceeding via acylation or trifluoromethylation of ortho-alkynylphenyl isonitriles is presented. In these cascades, two C-C bonds and one C-O bond are formed using an inexpensive oxidant and a catalytic copper or iron salt. The starting isonitriles are easily accessible, and commercially available aldehydes and fluoromethylation reagents serve as reaction partners. Functional group tolerance is high, as documented by the successful preparation of a series of 2,3-disubstituted indoles.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Frauke Weidlich
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Florin Adler
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany
| | - Fatmah A Alasmary
- Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany.,Chemistry Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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3
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Ni Y, Wan X, Zuo H, Bashir MA, Liu Y, Yu H, Liao RZ, Wu G, Zhong F. Iron-catalyzed cross-dehydrogenative C–H amidation of benzofurans and benzothiophenes with anilines. Org Chem Front 2021. [DOI: 10.1039/d0qo01651a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient iron-catalyzed radical cross-dehydrogenative aromatic C–H amidation provides a straightforward access to structurally diverse diarylamine derivatives incorporating benzofuran/benzothiophene motifs.
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Affiliation(s)
- Yang Ni
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Xiang Wan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Honghua Zuo
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Muhammad Adnan Bashir
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Yu Liu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Huaibin Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Guojiao Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Fangrui Zhong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
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4
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Uyanik M, Tanaka H, Ishihara K. Hypoiodite-Catalyzed Chemoselective Tandem Oxidation of Homotryptamines to Peroxy- and Epoxytetrahydropyridoindolenines. Org Lett 2020; 22:8049-8054. [PMID: 32996315 DOI: 10.1021/acs.orglett.0c03001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We developed the hypoiodite-catalyzed tandem dearomative peroxycyclization of homotryptamine derivatives to peroxytetrahydropyridoindolenines under mild conditions. During the course of a mechanistic study, we found that a tandem oxidative cyclization/epoxidation as an unexpected reaction proceeded in the presence of TEMPO as an additive. Intramolecular oxidative aminocyclization of homotryptamines at the C-2 position would give tetrahydropyridoindole, a common intermediate for both reactions. Control experiments suggested that while oxidative coupling with TBHP at the C-3 position might afford peroxyindolenines, a preferential electrophilic addition of TEMPO+, which might be generated in situ by the hypoiodite-catalyzed oxidation of TEMPO, at C-3 position followed by elimination and epoxidation might give epoxyindolenines. This serendipitous finding prompted us to develop a chemoselective divergent synthesis of peroxy- and epoxyindolenines by simple modification of the reaction conditions.
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Affiliation(s)
- Muhammet Uyanik
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Hiroki Tanaka
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa, Nagoya 464-8603, Japan
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5
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Smith IT, Neeley JB, Brinley TD, Fullmer PR, Andrus MB. Synthesis of pyrroloindolines through formal [3 + 2]-cycloaddition of indoles with chiral N-2-acetamidoacrylyl oxazolidinones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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6
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Wang J, Bao X, Wang J, Huo C. Peroxidation of 3,4-dihydro-1,4-benzoxazin-2-ones. Chem Commun (Camb) 2020; 56:3895-3898. [PMID: 32134057 DOI: 10.1039/c9cc09778c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The sp3-C-H peroxidation of 3,4-dihydro-1,4-benzoxazin-2-ones was achieved under mild and simple catalyst-free reaction conditions. A range of biologically important alkylated benzoxazinone peroxides are synthesized in high yield with a good functional group tolerance. The C(sp3)-OO bond was constructed efficiently and could be further converted into C(sp3)-C(sp3), C(sp3)-C(sp2), C(sp3)-C(sp), C-P and C[double bond, length as m-dash]O bonds by late-stage functional group transformations.
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Affiliation(s)
- Jie Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China.
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7
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Wang D, Yu H, Sun S, Zhong F. Intermolecular Vicinal Diaminative Assembly of Tetrahydroquinoxalines via Metal-free Oxidative [4 + 2] Cycloaddition Strategy. Org Lett 2020; 22:2425-2430. [DOI: 10.1021/acs.orglett.0c00624] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Dangui Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Huaibin Yu
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Shaohan Sun
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Key laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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8
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Synthesis and structural analysis of novel indole derivatives by XRD, spectroscopic and DFT studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127438] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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9
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Chen SK, Yang JS, Dai KL, Zhang FM, Zhang XM, Tu YQ. Exploration of a KI-catalyzed oxidation system for direct construction of bispyrrolidino[2,3-b]indolines and the total synthesis of (+)-WIN 64821. Chem Commun (Camb) 2020; 56:121-124. [DOI: 10.1039/c9cc08646c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A facile and environmentally benign KI(cat.)/NaBO3·4H2O oxidation system has been developed for the tandem oxidative aminocyclization/coupling of tryptamines, affording a series of 3a,3a′-bispyrrolidino[2,3-b]indolines with high efficiency (up to 94% yield).
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Affiliation(s)
- Si-Kai Chen
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ju-Song Yang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Kun-Long Dai
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemistry and Chemical Engineering
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10
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Mutra MR, Dhandabani GK, Li J, Wang JJ. Regio- and chemoselective synthesis of nitrogen-containing heterocycles via the oxidative cascade cyclization of unactivated 1,n-enynes. Chem Commun (Camb) 2020; 56:2051-2054. [DOI: 10.1039/c9cc07820g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The development of a method for performing radical initiated intramolecular cascade cyclization of 1,n-enynes provided a competent protocol for producing structurally diverse complex heterocycles.
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Affiliation(s)
- Mohana Reddy Mutra
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
| | - Ganesh Kumar Dhandabani
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
| | - Jing Li
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung City 807
- Taiwan
- Department of Medical Research
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11
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Li Y, Guo J, Lu X, Zhong F. One-step assembly of alkoxypyrroloindolines via iodine-catalyzed alkoxycyclization of indole derivatives. Org Biomol Chem 2019; 18:32-35. [PMID: 31761916 DOI: 10.1039/c9ob02287b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report an iodine-catalyzed alkoxycyclization of tryptamine derivatives under mild reaction conditions. This method distinguished itself by providing a catalytic, one-step assembly of diversely functionalized C3a-alkoxypyrroloindolines as well as dihydrofuran and lactone fused indolines. Mechanistic studies suggest that an ionic pathway is operative and this probably accounts for the diastereospecificity of all isolated cycloadducts.
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Affiliation(s)
- Yan Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu road, Wuhan 430074, China.
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12
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Armido Studer
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology State Key Laboratory of Structural Chemistry Center for Excellence in Molecular Synthesis Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 155 Yangqiao Road West Fuzhou Fujian 350002 P. R. China
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
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13
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Leifert D, Studer A. The Persistent Radical Effect in Organic Synthesis. Angew Chem Int Ed Engl 2019; 59:74-108. [PMID: 31116479 DOI: 10.1002/anie.201903726] [Citation(s) in RCA: 378] [Impact Index Per Article: 75.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Indexed: 12/14/2022]
Abstract
Radical-radical couplings are mostly nearly diffusion-controlled processes. Therefore, the selective cross-coupling of two different radicals is challenging and not a synthetically valuable transformation. However, if the radicals have different lifetimes and if they are generated at equal rates, cross-coupling will become the dominant process. This high cross-selectivity is based on a kinetic phenomenon called the persistent radical effect (PRE). In this Review, an explanation of the PRE supported by simulations of simple model systems is provided. Radical stabilities are discussed within the context of their lifetimes, and various examples of PRE-mediated radical-radical couplings in synthesis are summarized. It is shown that the PRE is not restricted to the coupling of a persistent with a transient radical. If one coupling partner is longer-lived than the other transient radical, the PRE operates and high cross-selectivity is achieved. This important point expands the scope of PRE-mediated radical chemistry. The Review is divided into two parts, namely 1) the coupling of persistent or longer-lived organic radicals and 2) "radical-metal crossover reactions"; here, metal-centered radical species and more generally longer-lived transition-metal complexes that are able to react with radicals are discussed-a field that has flourished recently.
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Affiliation(s)
- Dirk Leifert
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
| | - Armido Studer
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian, 350002, P. R. China.,Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149, Münster, Germany
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14
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Wang D, Lu X, Sun S, Yu H, Su H, Wu Y, Zhong F. Unified and Benign Synthesis of Spirooxindoles via Bifunctional and Recyclable Iodide-Salt-Catalyzed Oxidative Coupling in Water. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900751] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Dangui Wang
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
- Shenzhen Huazhong University of Science and Technology Research Institute; 518000 Shenzhen PR China
| | - Xunbo Lu
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
| | - Shaohan Sun
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
| | - Huaibin Yu
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
| | - Huimin Su
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
| | - Yuzhou Wu
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
| | - Fangrui Zhong
- Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road 430074 Wuhan China
- Shenzhen Huazhong University of Science and Technology Research Institute; 518000 Shenzhen PR China
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