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Tomczyk I, Kalek M. Electrochemical Dearomatizing Methoxylation of Phenols and Naphthols: Synthetic and Computational Studies. Chemistry 2024; 30:e202303916. [PMID: 38315289 DOI: 10.1002/chem.202303916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
The electrochemical oxidative dearomatizing methoxylation of phenols and naphthols was developed. It provides an alternative route for the preparation of methoxycyclohexadienones, important and versatile synthetic intermediates, that eliminates the need for stoichiometric high-energy chemical oxidants and generates hydrogen as a sole by-product. The reaction proceeds in a simple constant current mode, in an undivided cell, and it employs standardized instrumentation. A collection of methoxycyclohexadienones derived from various 2,4,6-tri-substituted phenols and 1-substituted-2-naphthols was obtained in moderate to excellent yields. These include a complex derivative of estrone, as well as methoxylated dearomatized 1,1'-bi-2-naphthols (BINOLs). The mechanism of the reaction was subject to profound investigations using density functional theory calculations. In particular, the reactivity of two key intermediates, phenoxyl radical and phenoxenium ion, was carefully examined. The obtained results shed light on the pathway leading to the desired product and rationalize experimentally observed selectivities regarding a side benzylic methoxylation and the preference for the functionalization at the para over the ortho position. They also uncover the structure-selectivity relationship, inversely correlating the steric bulk of the substrate with its propensity to undergo the side-reaction. Moreover, the loss of stereochemical information from enantiopure BINOL substrates during the reaction is rationalized by the computations.
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Affiliation(s)
- Ireneusz Tomczyk
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097, Warsaw, Poland
| | - Marcin Kalek
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097, Warsaw, Poland
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2
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Yanovich A, Vepreva A, Malkova K, Kantin G, Dar’in D. Entry to new spiroheterocycles via tandem Rh(II)-catalyzed O-H insertion/base-promoted cyclization involving diazoarylidene succinimides. Beilstein J Org Chem 2024; 20:561-569. [PMID: 38505240 PMCID: PMC10949003 DOI: 10.3762/bjoc.20.48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/22/2024] [Indexed: 03/21/2024] Open
Abstract
A facile approach to novel medicinally relevant spiro heterocyclic scaffolds (namely furan-2(5H)-ones, tetrahydrofurans and pyrans spiro-conjugated with the succinimide ring) has been developed. The protocol consists of Rh(II)-catalyzed insertion of heterocyclic carbenes derived from diazoarylidene succinimides (DAS) into the O-H bond of propiolic/allenic acids or brominated alcohols, followed by base-promoted cyclization to afford the target spirocyclic compounds in good to high yields.
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Affiliation(s)
- Alexander Yanovich
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof, Saint Petersburg 198504, Russian Federation
| | - Anastasia Vepreva
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof, Saint Petersburg 198504, Russian Federation
| | - Ksenia Malkova
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof, Saint Petersburg 198504, Russian Federation
| | - Grigory Kantin
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof, Saint Petersburg 198504, Russian Federation
| | - Dmitry Dar’in
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof, Saint Petersburg 198504, Russian Federation
- Saint Petersburg Research Institute of Phthisiopulmonology, 2-4 Ligovsky pr., Saint Petersburg 191036, Russian Federation
- Department of Medicinal Chemistry, Institute of Chemistry, Saint Petersburg State University, 26 Universitetskiy pr., Peterhof 198504, Russian Federation
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3
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Bag R, Mishra NP, Saha D, Banerjee P. Electrochemical Oxidative Dearomatization Strategy for Accessing Spiro[4.5]dienones and Derivatives. J Org Chem 2024; 89:2200-2211. [PMID: 38329058 DOI: 10.1021/acs.joc.3c02094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Electrochemical dearomatization has been recognized as an attractive tool for the rapid construction of structurally diverse molecules. The designed methodology encompasses an eco-friendly and efficient electrochemical approach to synthesizing spiro[4.5]dienones under mild reaction conditions. Furthermore, detailed mechanistic studies strongly bolster our hypothesis and emphasize the role of HFIP in the mechanism. The protocol is scalable and showcases a broad substrate scope with tolerance toward numerous functional groups. Henceforth, this strategy can be deployed as an alternative and sustainable tool for accessing spiro[4.5]dienones.
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Affiliation(s)
- Rohan Bag
- Lab No. 406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Nilima Priyadarsini Mishra
- Lab No. 406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Debarshi Saha
- Lab No. 406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Prabal Banerjee
- Lab No. 406, Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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4
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Cayla M, Sonet D, Tarayre E, Bapt R, Bibal B. Tandem Oxidative Dearomatizations of Diphenylanthracene Atropisomers. J Org Chem 2023; 88:13067-13075. [PMID: 37673031 DOI: 10.1021/acs.joc.3c01252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
The first examples of tandem oxidative dearomatizations of 9,10-diphenylanthracene atropisomers with ortho,ortho'- formyl substituents are presented. In the presence of KMnO4, their stereoselective tandem double oxidation and spirocyclization mainly afford the syn or anti dearomatized 9,10-diphthalide anthracenes. Using Pinnick's reagent and depending on the conditions, the oxidation can mainly lead to the corresponding syn or anti diacids in good yields or to three oxidation products. An unprecedented further oxidative ring expansion toward dibenzo[b,e]oxepines is also reported.
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Affiliation(s)
- Mattéo Cayla
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Dorian Sonet
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Emilien Tarayre
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Romain Bapt
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
| | - Brigitte Bibal
- Univ. Bordeaux, CNRS, Bordeaux INP, ISM, UMR 5255, F-33400 Talence, France
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Hayrapetyan D, Yussupova L, Kaipov A, Galyamova A. Electrochemical synthesis of spirocyclic morpholines and tetrahydrofurans via an oxidative dearomatisation strategy. Org Biomol Chem 2023; 21:7090-7094. [PMID: 37605629 DOI: 10.1039/d3ob01176c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Simple and scalable electrochemical oxidation of the electron-rich benzene ring followed by intramolecular capture of reactive cation-radical intermediates opens access to spirocyclic morpholines and tetrahydrofurans. The obtained molecules can be readily modified to value-added building blocks.
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Affiliation(s)
- Davit Hayrapetyan
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave., 010000 Astana, Kazakhstan.
| | - Lyailya Yussupova
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave., 010000 Astana, Kazakhstan.
| | - Almaz Kaipov
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave., 010000 Astana, Kazakhstan.
| | - Aigerim Galyamova
- Department of Chemistry, School of Sciences and Humanities, Nazarbayev University, 53 Kabanbay Batyr Ave., 010000 Astana, Kazakhstan.
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Shetgaonkar SE, Jothish S, Dohi T, Singh FV. Iodine(V)-Based Oxidants in Oxidation Reactions. Molecules 2023; 28:5250. [PMID: 37446912 DOI: 10.3390/molecules28135250] [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: 06/15/2023] [Revised: 07/04/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
The chemistry of hypervalent iodine reagents has now become quite valuable due to the reactivity of these compounds under mild reaction conditions and their resemblance in chemical properties to transition metals. The environmentally friendly nature of these reagents makes them suitable for Green Chemistry. Reagents with a dual nature, such as iodine(III) reagents, are capable electrophiles, while iodine(V) reagents are known for their strong oxidant behavior. Various iodine(V) reagents including IBX and DMP have been used as oxidants in organic synthesis either in stoichiometric or in catalytic amounts. In this review article, we describe various oxidation reactions induced by iodine(V) reagents reported in the past decade.
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Affiliation(s)
- Samata E Shetgaonkar
- School of Chemical Sciences, Goa University, Taleigao Plateau 403206, Goa, India
| | - Subhiksha Jothish
- Chemistry Division, School of Advanced Sciences (SAS), Vellore Institute of Technology, Chennai 600127, Tamil Nadu, India
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu 525-0058, Shiga, Japan
| | - Fateh V Singh
- Chemistry Division, School of Advanced Sciences (SAS), Vellore Institute of Technology, Chennai 600127, Tamil Nadu, India
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7
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Wan J, Huang J. Electrochemical Dearomative Amination of Phenol Derivatives: Access to Spirooxazolidinones. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Jin‐Lin Wan
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 People's Republic of China
| | - Jing‐Mei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 People's Republic of China
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8
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Dar'in D, Kantin G, Glushakova D, Sharoyko V, Krasavin M. Diazo Tetramic Acids Provide Access to Natural-Like Spirocyclic Δ α,β-Butenolides through Rh(II)-Catalyzed O-H Insertion/Base-Promoted Cyclization. J Org Chem 2023. [PMID: 36603207 DOI: 10.1021/acs.joc.2c02600] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
3-Diazotetramic acids were found to be valid substrates for the recently discovered approach toward natural-like Δα,β-spirobutenolides via Rh(II)-catalyzed O-H insertion into propiolic acids followed by base-promoted intramolecular Michael addition. The target Δα,β-spirobutenolides were obtained in generally high yields and, in the case of chiral 5-monosubstituted 3-diazotetramic acids, high diastereoselectivity. The synthesis of Δα,β-spirobutenolides that we report here was virtually insensitive to the structure of the propiolic acids though it was somewhat sensitive to the structure of the 3-diazotetramic acids, thereby demonstrating quite a large scope. Thus, a new class of α-diazocarbonyl compounds suitable for the realization of the approach outlined above was identified.
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Affiliation(s)
- Dmitry Dar'in
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetsky prospekt, Peterhof 198504 Russia
| | - Grigory Kantin
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetsky prospekt, Peterhof 198504 Russia
| | - Daria Glushakova
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetsky prospekt, Peterhof 198504 Russia
| | - Vladimir Sharoyko
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetsky prospekt, Peterhof 198504 Russia
- The Pavlov First Medical University, 6-8 Lva Tolstogo ulitsa, Saint Petersburg 197022, Russia
| | - Mikhail Krasavin
- Institute of Chemistry, Saint Petersburg State University, 26 Universitetsky prospekt, Peterhof 198504 Russia
- Immanuel Kant Baltic Federal University, 14 Aleksandra Nevskogo ulitsa, Kaliningrad 236041, Russia
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9
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Singh FV, Shetgaonkar SE, Krishnan M, Wirth T. Progress in organocatalysis with hypervalent iodine catalysts. Chem Soc Rev 2022; 51:8102-8139. [PMID: 36063409 DOI: 10.1039/d2cs00206j] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypervalent iodine compounds as environmentally friendly and relatively inexpensive reagents have properties similar to transition metals. They are employed as alternatives to transition metal catalysts in organic synthesis as mild, nontoxic, selective and recyclable catalytic reagents. Formation of C-N, C-O, C-S, C-F and C-C bonds can be seamlessly accomplished by hypervalent iodine catalysed oxidative functionalisations. The aim of this review is to highlight recent developments in the utilisation of iodine(III) and iodine(V) catalysts in the synthesis of a wide range of organic compounds including chiral catalysts for stereoselective synthesis. Polymer-, magnetic nanoparticle- and metal organic framework-supported hypervalent iodine catalysts are also described.
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Affiliation(s)
- Fateh V Singh
- Chemistry Department, SAS, Vellore Institute of Technology - Chennai, Vandalur-Kelambakkam Road, Chennai-600127, Tamil Nadu, India.
| | - Samata E Shetgaonkar
- Chemistry Department, SAS, Vellore Institute of Technology - Chennai, Vandalur-Kelambakkam Road, Chennai-600127, Tamil Nadu, India.
| | - Manjula Krishnan
- Chemistry Department, SAS, Vellore Institute of Technology - Chennai, Vandalur-Kelambakkam Road, Chennai-600127, Tamil Nadu, India.
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Cardiff, UK.
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10
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Lee HJ, Choi ES, Maruoka K. Development of a catalytic ester activation protocol for the efficient formation of amide bonds using an Ar‐I/HF•pyridine/mCPBA system. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200483] [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)
- Hyo-Jun Lee
- Kunsan National University Department of Chemistry KOREA, REPUBLIC OF
| | - Eun-Sol Choi
- Kunsan National University Department of Chemistry KOREA, REPUBLIC OF
| | - Keiji Maruoka
- Kyoto University Graduate School of Pharmaceutical Sciences Sakyo 606-8501 Kyoto JAPAN
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11
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Development of TfOH‐Catalyzed Spirocyclization by Intramolecular Friedel‐Crafts‐type 1,4‐Addition: Application to the Total Synthesis of the Unusual Proaporphine Alkaloid (±)‐Misrametine. Chemistry 2022; 28:e202202188. [DOI: 10.1002/chem.202202188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Indexed: 11/07/2022]
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12
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Shetgaonkar SE, Raju A, China H, Takenaga N, Dohi T, Singh FV. Non-Palladium-Catalyzed Oxidative Coupling Reactions Using Hypervalent Iodine Reagents. Front Chem 2022; 10:909250. [PMID: 35844643 PMCID: PMC9283985 DOI: 10.3389/fchem.2022.909250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/20/2022] [Indexed: 01/25/2023] Open
Abstract
Transition metal-catalyzed direct oxidative coupling reactions via C–H bond activation have emerged as a straightforward strategy for the construction of complex molecules in organic synthesis. The direct transformation of C–H bonds into carbon–carbon and carbon–heteroatom bonds renders the requirement of prefunctionalization of starting materials and, therefore, represents a more efficient alternative to the traditional cross-coupling reactions. The key to the unprecedented progress made in this area has been the identification of an appropriate oxidant that facilitates oxidation and provides heteroatom ligands at the metal center. In this context, hypervalent iodine compounds have evolved as mainstream reagents particularly because of their excellent oxidizing nature, high electrophilicity, and versatile reactivity. They are environmentally benign reagents, stable, non-toxic, and relatively cheaper than inorganic oxidants. For many years, palladium catalysis has dominated these oxidative coupling reactions, but eventually, other transition metal catalysts such as gold, copper, platinum, iron, etc. were found to be promising alternate catalysts for facilitating such reactions. This review article critically summarizes the recent developments in non-palladium-catalyzed oxidative coupling reactions mediated by hypervalent iodine (III) reagents with significant emphasis on understanding the mechanistic aspects in detail.
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Affiliation(s)
| | - Aleena Raju
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
| | - Hideyasu China
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, Nagahama, Japan
| | | | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, Kusatsu, Japan
- *Correspondence: Toshifumi Dohi, ; Fateh V. Singh,
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Science, VIT University, Chennai, India
- *Correspondence: Toshifumi Dohi, ; Fateh V. Singh,
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13
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Palladium-Catalyzed Organic Reactions Involving Hypervalent Iodine Reagents. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123900. [PMID: 35745020 PMCID: PMC9230104 DOI: 10.3390/molecules27123900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/07/2022] [Accepted: 06/11/2022] [Indexed: 01/13/2023]
Abstract
The chemistry of polyvalent iodine compounds has piqued the interest of researchers due to their role as important and flexible reagents in synthetic organic chemistry, resulting in a broad variety of useful organic molecules. These chemicals have potential uses in various functionalization procedures due to their non-toxic and environmentally friendly properties. As they are also strong electrophiles and potent oxidizing agents, the use of hypervalent iodine reagents in palladium-catalyzed transformations has received a lot of attention in recent years. Extensive research has been conducted on the subject of C—H bond functionalization by Pd catalysis with hypervalent iodine reagents as oxidants. Furthermore, the iodine(III) reagent is now often used as an arylating agent in Pd-catalyzed C—H arylation or Heck-type cross-coupling processes. In this article, the recent advances in palladium-catalyzed oxidative cross-coupling reactions employing hypervalent iodine reagents are reviewed in detail.
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Kumar R, Singh FV, Takenaga N, Dohi T. Asymmetric Direct/Stepwise Dearomatization Reactions Involving Hypervalent Iodine Reagents. Chem Asian J 2021; 17:e202101115. [PMID: 34817125 DOI: 10.1002/asia.202101115] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/19/2021] [Indexed: 01/06/2023]
Abstract
A remarkable growth in hypervalent iodine-mediated oxidative transformations as stoichiometric reagents as well as catalysts has been well-documented due to their excellent properties, such as mildness, easy handling, high selectivity, environmentally friendly nature, and high stability. This review aims at highlighting the asymmetric oxidative dearomatization reactions involving hypervalent iodine compounds. The present article summarizes asymmetric intra- and intermolecular dearomatization reactions using chiral hypervalent iodine reagents/catalysts as well as hypervalent iodine-mediated dearomatization reactions followed by desymmetrization.
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, J. C. Bose University of Science & Technology, YMCA Faridabad, NH-2, Sector-6, Mathura Road, Faridabad, Haryana, 121006, India
| | - Fateh V Singh
- Chemistry Division, School of Advanced Sciences (SAS), Vellore Institute of Technology - Chennai, Chennai, 600127, Tamil Nadu, India
| | - Naoko Takenaga
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya, 468-8503, Japan
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-0058, Japan
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Abazid AH, Nachtsheim BJ. Application of chiral triazole-substituted iodoarenes in the enantioselective construction of spirooxazolines. Chem Commun (Camb) 2021; 57:8822-8825. [PMID: 34382967 DOI: 10.1039/d1cc03246a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A catalytic highly enantioselective synthesis of spirooxazolines is presented. Starting from readily available 2-naphthol-substituted benzamides and using catalytic amounts of a chiral triazole-substituted iodoarene catalyst, a variety of spirooxazolines can be isolated through an enantioselective oxidative dearomatization in up to 92% yield and 97% ee. The further synthetic utility of the optically enriched spirooxazolines was examined providing a corresponding 2-naphthalenole and an oxepin.
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Affiliation(s)
- Ayham H Abazid
- University of Bremen, Institute of Organic and Analytical Chemistry, Leobener Straße 7, Bremen 28359, Germany.
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Debnath S, Kumar AS, Chauhan S, Kumara Swamy KC. Divergent Reactivity of δ- and β'-Acetoxy Allenoates with 2-Sulfonamidoindoles via Phosphine Catalysis: Entry to Dihydro-α-carboline, α-Carboline, and Spiro-cyclopentene Motifs. J Org Chem 2021; 86:11583-11598. [PMID: 34343010 DOI: 10.1021/acs.joc.1c01137] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The reactivity of 2-sulfonamidoindoles with acetoxy allenoates under phosphine catalysis depends on the disposition of the acetoxy (OAc) group on the allenoate. In the temperature-controlled [3 + 3] annulations, δ-acetoxy allenoates afforded dihydrocarboline and carboline scaffolds with carbon-nitrogen nucleophilic 2-sulfonamidoindoles, in which allenoate serves as a β-, γ-, and δ-carbon donor. At room temperature (25 °C), dihydro-α-carboline motifs were obtained exclusively through Michael addition, 1,4-proton shift, isomerization, 1,2-proton transfer, phosphine elimination, and aza-Michael addition. The higher temperature (80 °C) cascade protocol using Ph3P-Cs2CO3 combination involves addition-elimination, aza-Claisen rearrangement, tosyl migration, and aromatization as key steps to give α-carbolines containing tosyl functionality at the γ-carbon. In contrast, with β'-acetoxy allenoate, 2-sulfonamidoindole acts only as a carbo-nucleophile in (p-tolyl)3P-directed [4 + 1] spiro-annulation, leading to five-membered spiro-carbocyclic motifs essentially as single diastereomers (dr >20:1) via chemoselective carbo-annulation.
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Affiliation(s)
- Shubham Debnath
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - A Sanjeeva Kumar
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - Sachin Chauhan
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India
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Yanagimoto A, Uwabe Y, Wu Q, Muto K, Yamaguchi J. Convergent Azaspirocyclization of Bromoarenes with N-Tosylhydrazones by a Palladium Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aika Yanagimoto
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Yota Uwabe
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Qikun Wu
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Kei Muto
- Waseda Institute for Advanced Study, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
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18
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Hayrapetyan D, Stepanova V. Facile Synthesis of Spirocyclic Lactams via [3+2] and [3+3] Aza‐Annulation Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Davit Hayrapetyan
- Department of Chemistry School of Sciences and Humanities Nazarbayev University 53 Kabanbay Batyr Ave. 010000 Nur-Sultan Kazakhstan
| | - Valeriya Stepanova
- Department of Chemistry School of Sciences and Humanities Nazarbayev University 53 Kabanbay Batyr Ave. 010000 Nur-Sultan Kazakhstan
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19
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Alves NG, Alves AJS, Soares MIL, Pinho e Melo TMVD. Recent Advances in the Synthesis of Spiro‐β‐Lactams and Spiro‐δ‐Lactams. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Nuno G. Alves
- University of Coimbra Coimbra Chemistry Centre and Department of Chemistry 3004-535 Coimbra Portugal
| | - Américo J. S. Alves
- University of Coimbra Coimbra Chemistry Centre and Department of Chemistry 3004-535 Coimbra Portugal
| | - Maria I. L. Soares
- University of Coimbra Coimbra Chemistry Centre and Department of Chemistry 3004-535 Coimbra Portugal
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20
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Kumar AS, Chauhan S, Swamy KCK. Contrasting Carboannulation Involving δ-Acetoxy Allenoate as a Four-Carbon Synthon Using DABCO and DMAP: Access to Spiro-carbocyclic and m-Teraryl Scaffolds. Org Lett 2021; 23:1123-1129. [PMID: 33480700 DOI: 10.1021/acs.orglett.1c00076] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Spiro-annulation involving δ-acetoxy allenoate and alkyl benzoisothiazole dioxide (N-sulfonyl ketimine) triggered by DABCO/MeCO2H combination leads to an essentially single diastereomer via chemo- and regiospecific [4 + 2]-carboannulation and a new hydroxyl group is introduced. In contrast, DMAP-catalyzed benzannulation using the same reactants affords unsymmetrical m-teraryls via Mannich coupling, sequential proton transfers, and C-N bond cleavage. Here, δ-acetoxy allenoate serves as a 4C-synthon and the carboannulation is completely base dependent and mutually exclusive.
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Affiliation(s)
- A Sanjeeva Kumar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Sachin Chauhan
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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21
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Javaid MS, Khan ZA, Mansha A, Shahzad SA. Iodine mediated carbocyclization reactions in organic syntheses: A review. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1867177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Zulfiqar Ali Khan
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| | - Asim Mansha
- Department of Chemistry, Government College University, Faisalabad, Pakistan
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22
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Chen C, He L. Advances in research of spirodienone and its derivatives: Biological activities and synthesis methods. Eur J Med Chem 2020; 203:112577. [DOI: 10.1016/j.ejmech.2020.112577] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/30/2020] [Accepted: 06/11/2020] [Indexed: 12/17/2022]
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23
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Shetgaonkar SE, Singh FV. Hypervalent Iodine Reagents in Palladium-Catalyzed Oxidative Cross-Coupling Reactions. Front Chem 2020; 8:705. [PMID: 33134246 PMCID: PMC7553084 DOI: 10.3389/fchem.2020.00705] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 07/09/2020] [Indexed: 01/12/2023] Open
Abstract
Hypervalent iodine compounds are valuable and versatile reagents in synthetic organic chemistry, generating a diverse array of useful organic molecules. Owing to their non-toxic and environmentally friendly features, these reagents find potential applications in various oxidative functionalization reactions. In recent years, the use of hypervalent iodine reagents in palladium-catalyzed transformations has been widely studied as they are strong electrophiles and powerful oxidizing agents. For instance, extensive work has been carried out in the field of C–H bond functionalization via Pd-catalysis using hypervalent iodine reagents as oxidants. In addition, nowadays, iodine(III) reagents have been frequently employed as arylating agents in Pd-catalyzed C–H arylation or Heck-type cross-coupling reactions. In this review, recent advancements in the area of palladium-catalyzed oxidative cross-coupling reactions using hypervalent iodine reagents are summarized in detail.
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Affiliation(s)
- Samata E Shetgaonkar
- Chemistry Division, School of Advanced Science, Vellore Institute of Technology, Chennai, India
| | - Fateh V Singh
- Chemistry Division, School of Advanced Science, Vellore Institute of Technology, Chennai, India
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24
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Mangaonkar SR, Shetgaonkar SE, Vernekar AA, Singh FV. Ultrasonic‐Assisted Hypervalent Iodine‐Catalyzed Cyclization of (
E
)‐2‐Hydroxystilbenes to Benzofurans Using Iodobenzene as Pre‐catalyst. ChemistrySelect 2020. [DOI: 10.1002/slct.202002860] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Saeesh R. Mangaonkar
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
| | - Samata E. Shetgaonkar
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
| | - Amit A. Vernekar
- Inorganic and Physical Chemistry Laboratory CSIR-Central Leather Research Institute (CLRI) Adyar Chennai 600 020, Tamil Nadu India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi India
| | - Fateh V. Singh
- Chemistry Division School of Advanced Sciences (SAS), VIT Chennai Vandalur-Kelambakkam Road Chennai 600 127, Tamil Nadu India
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25
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Tariq MU, Moran WJ. Spirooxazoline Synthesis by an Oxidative Dearomatizing Cyclization. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000840] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- M. Umair Tariq
- Department of Chemistry University of Huddersfield Queensgate HD1 3DH Huddersfield U. K
| | - Wesley J. Moran
- Department of Chemistry University of Huddersfield Queensgate HD1 3DH Huddersfield U. K
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26
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Zhao GH, Li BQ, Wang SS, Liu M, Chen Y, Wang B. PIFA-Mediated Dearomatizative Spirocyclization of Phenolic Biarylic Ketones via Oxidation and C-C Bond Cleavage. J Org Chem 2020; 85:9367-9374. [PMID: 32578986 DOI: 10.1021/acs.joc.0c00971] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dearomatizing spirocyclization of phenolic biarylic ketones using PhI(OCOCF3)2 as oxidant is presented. The reaction affords various cyclohexadienones through C-C bond cleavage under mild conditions. Mechanistic investigations reveal that an exocyclic enol ether acts as the key intermediate in the transformation.
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Affiliation(s)
- Gui-Hua Zhao
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
| | - Bi-Qing Li
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
| | - Shuang-Shuang Wang
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
| | - Man Liu
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
| | - Yuan Chen
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
| | - Bin Wang
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Haihe Education Park, 38 Tongyan Road, Tianjin 300353, P.R. China
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27
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Odagi M, Okuda K, Ishizuka H, Adachi K, Nagasawa K. Synthesis of Spiroguanidine Derivatives by Dearomative Oxidative Cyclization using Hypervalent Iodine Reagent. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900726] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Minami Odagi
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology (TUAT) 2-24-16, Naka-cho, Koganei city 184-8588 Tokyo Japan
| | - Kazuma Okuda
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology (TUAT) 2-24-16, Naka-cho, Koganei city 184-8588 Tokyo Japan
| | - Hayate Ishizuka
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology (TUAT) 2-24-16, Naka-cho, Koganei city 184-8588 Tokyo Japan
| | - Kanna Adachi
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology (TUAT) 2-24-16, Naka-cho, Koganei city 184-8588 Tokyo Japan
| | - Kazuo Nagasawa
- Department of Biotechnology and Life ScienceTokyo University of Agriculture and Technology (TUAT) 2-24-16, Naka-cho, Koganei city 184-8588 Tokyo Japan
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28
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Abazid AH, Nachtsheim BJ. A Triazole-Substituted Aryl Iodide with Omnipotent Reactivity in Enantioselective Oxidations. Angew Chem Int Ed Engl 2020; 59:1479-1484. [PMID: 31600009 PMCID: PMC7003988 DOI: 10.1002/anie.201912023] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/10/2019] [Indexed: 12/29/2022]
Abstract
A widely applicable triazole‐substituted chiral aryl iodide is described as catalyst for enantioselective oxidation reactions. The introduction of a substituent in ortho‐position to the iodide is key for its high reactivity and selectivity. Besides a robust and modular synthesis, the main advantage of this catalyst is the excellent performance in a plethora of mechanistically diverse enantioselective transformations, such as spirocyclizations, phenol dearomatizations, α‐oxygenations, and oxidative rearrangements. DFT‐calculations of in situ generated [hydroxy(tosyloxy)iodo]arene isomers give an initial rational for the observed reactivity.
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Affiliation(s)
- Ayham H Abazid
- Institut für Organische und Analytische Chemie, Universität Bremen, Leobener Straße 7, 28359, Bremen, Germany
| | - Boris J Nachtsheim
- Institut für Organische und Analytische Chemie, Universität Bremen, Leobener Straße 7, 28359, Bremen, Germany
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29
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Duan K, Shi H, Wang LX, Li SS, Xu L, Xiao J. Hydride transfer enabled switchable dearomatization of indoles in the carbocyclic ring and the pyrrole ring. Org Chem Front 2020. [DOI: 10.1039/d0qo00658k] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydride transfer enabled the first success of the regioselective dearomatization of indoles in the carbocyclic ring and the pyrrole ring, which was induced by ortho-quinone methides and vinylogous iminium intermediates, respectively.
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Affiliation(s)
- Kang Duan
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Hongjin Shi
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Lin-Xuan Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Jian Xiao
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- School of Marine Science and Engineering
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30
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Yanada R, Okamoto N, Sueda T. One-Pot Synthesis of 9-Spirofluorenes via Tandem Copper-Catalyzed Arylative Cyclization and Spirocyclization of Biaryl-Substituted Alkynyl Alcohols. HETEROCYCLES 2020. [DOI: 10.3987/com-19-s(f)22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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A Triazole‐Substituted Aryl Iodide with Omnipotent Reactivity in Enantioselective Oxidations. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912023] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Zaman M, Hasan M, Peshkov AA, Van Hecke K, Van der Eycken EV, Pereshivko OP, Peshkov VA. Silver(I) Triflate‐Catalyzed Protocol for the Post‐Ugi Synthesis of Spiroindolines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901064] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Manzoor Zaman
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Dushu Lake Campus Suzhou 215123 People's Republic of China
| | - Muhammad Hasan
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Dushu Lake Campus Suzhou 215123 People's Republic of China
| | - Anatoly A. Peshkov
- Department of Chemistry, School of Science and TechnologyNazarbayev University 53 Kabanbay Batyr Ave, Block 7 Nur-Sultan 010000 Republic of Kazakhstan
| | - Kristof Van Hecke
- XStruct, Department of ChemistryGhent University Krijgslaan 281-S3 B-9000 Ghent Belgium
| | - Erik V. Van der Eycken
- Laboratory of Organic & Microwave-Assisted Chemistry (LOMAC), Department of ChemistryUniversity of Leuven (KU Leuven) Celestijnenlaan 200F B-3001 Leuven Belgium
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya street 6 Moscow 117198 Russia
| | - Olga P. Pereshivko
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Dushu Lake Campus Suzhou 215123 People's Republic of China
- Department of Chemistry, School of Science and TechnologyNazarbayev University 53 Kabanbay Batyr Ave, Block 7 Nur-Sultan 010000 Republic of Kazakhstan
| | - Vsevolod A. Peshkov
- College of Chemistry, Chemical Engineering and Materials ScienceSoochow University Dushu Lake Campus Suzhou 215123 People's Republic of China
- Department of Chemistry, School of Science and TechnologyNazarbayev University 53 Kabanbay Batyr Ave, Block 7 Nur-Sultan 010000 Republic of Kazakhstan
- The Environment and Resource Efficiency Cluster (EREC)Nazarbayev University Nur-Sultan Republic of Kazakhstan
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33
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Boelke A, Nachtsheim BJ. Evolution of
N
‐Heterocycle‐Substituted Iodoarenes (NHIAs) to Efficient Organocatalysts in Iodine(I/III)‐Mediated Oxidative Transformations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901356] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Andreas Boelke
- Institute for Organic and Analytical ChemistryUniversity of Bremen 28359 Bremen Germany
| | - Boris J. Nachtsheim
- Institute for Organic and Analytical ChemistryUniversity of Bremen 28359 Bremen Germany
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34
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Xing Q, Liang H, Bao M, Li X, Zhang J, Bi T, Zhang Y, Xu J, Du Y, Zhao K. Metal‐free Synthesis of Spiro‐2,2′‐benzo[
b
]furan‐3,3′‐ones
via
PhI(OAc)
2
‐Mediated Cascade Spirocyclization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Qingyu Xing
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Huiyuan Liang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Mingmai Bao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Xuemin Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Jingran Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Tianhao Bi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Yilin Zhang
- C. Eugene Bennett Department of ChemistryWest Virginia University Morgantown, West Virginia 26506-6045 United States
| | - Jun Xu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300072 People's Republic of China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and TechnologyTianjin University Tianjin 300072 People's Republic of China
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35
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Maejima S, Yamaguchi E, Itoh A. Visible Light/Molecular-Iodine-Mediated Intermolecular Spirolactonization Reaction of Olefins with Cyclic Ketones. J Org Chem 2019; 84:9519-9531. [DOI: 10.1021/acs.joc.9b01081] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Saki Maejima
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Eiji Yamaguchi
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu 501-1196, Japan
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36
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Flodén NJ, Trowbridge A, Willcox D, Walton SM, Kim Y, Gaunt MJ. Streamlined Synthesis of C(sp3)-Rich N-Heterospirocycles Enabled by Visible-Light-Mediated Photocatalysis. J Am Chem Soc 2019; 141:8426-8430. [DOI: 10.1021/jacs.9b03372] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nils J. Flodén
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Aaron Trowbridge
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Darren Willcox
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Scarlett M. Walton
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
- Medicinal Chemistry, Oncology, IMED Biotech Unit, AstraZeneca, Cambridge CB4 0WG, U.K
| | - Yongjoon Kim
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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37
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Mudithanapelli C, Dhorma LP, Kim MH. PIFA-Promoted, Solvent-Controlled Selective Functionalization of C(sp2)–H or C(sp3)–H: Nitration via C–N Bond Cleavage of CH3NO2, Cyanation, or Oxygenation in Water. Org Lett 2019; 21:3098-3102. [DOI: 10.1021/acs.orglett.9b00751] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Chandrashekar Mudithanapelli
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Lama Prema Dhorma
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
| | - Mi-hyun Kim
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
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38
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Reddy Kandimalla S, Prathima Parvathaneni S, Sabitha G, Subba Reddy BV. Recent Advances in Intramolecular Metal-Free Oxidative C-H Bond Aminations Using Hypervalent Iodine(III) Reagents. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801469] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Satheeshkumar Reddy Kandimalla
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500 007 India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
| | - Sai Prathima Parvathaneni
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Department of Chemistry; University of Texas at Austin; 78712 Austin, Texas United States
| | - Gowravaram Sabitha
- Natural Products Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500 007 India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
| | - B. V. Subba Reddy
- Fluoro & Agrochemicals Division; CSIR-Indian Institute of Chemical Technology; 500-007 Hyderabad India
- Academy of Scientific and Innovative Research; 110025 New Delhi India
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39
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Hyatt IFD, Dave L, David N, Kaur K, Medard M, Mowdawalla C. Hypervalent iodine reactions utilized in carbon–carbon bond formations. Org Biomol Chem 2019; 17:7822-7848. [DOI: 10.1039/c9ob01267b] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This review covers recent developments of hypervalent iodine chemistry in dearomatizations, radicals, hypervalent iodine-guided electrophilic substitution, arylations, photoredox, and more.
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Affiliation(s)
| | - Loma Dave
- Department of Chemistry and Biochemistry
- Adelphi University
- Garden City
- USA
| | - Navindra David
- Department of Chemistry and Biochemistry
- Adelphi University
- Garden City
- USA
| | - Kirandeep Kaur
- Department of Chemistry and Biochemistry
- Adelphi University
- Garden City
- USA
| | - Marly Medard
- Department of Chemistry and Biochemistry
- Adelphi University
- Garden City
- USA
| | - Cyrus Mowdawalla
- Department of Chemistry and Biochemistry
- Adelphi University
- Garden City
- USA
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40
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Song H, Cheng N, She LQ, Wu Y, Liao WW. Efficient synthesis of spirooxindolyl oxazol-2(5H)-ones via palladium(ii)-catalyzed addition of arylboronic acids to nitriles. RSC Adv 2019; 9:29424-29428. [PMID: 35528398 PMCID: PMC9071805 DOI: 10.1039/c9ra07216k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 09/10/2019] [Indexed: 11/21/2022] Open
Abstract
A versatile synthesis of spirooxindolyl oxazol-2(5H)-ones and derivatives via palladium(ii)-catalyzed addition of arylboronic acids to nitriles is described.
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Affiliation(s)
- Hao Song
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Na Cheng
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Li-Qin She
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Yi Wu
- School of Pharmaceutical Science
- Jilin University
- Changchun 130012
- P. R. China
| | - Wei-Wei Liao
- Department of Organic Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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