1
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Wei L, Guo Y, Li Z, Jiang H, Qi C. Silver-Catalyzed Coupling of Ethynylbenziodoxolones with CO 2 and Amines to Afford O-β-Oxoalkyl Carbamates. Org Lett 2024. [PMID: 38780900 DOI: 10.1021/acs.orglett.4c01147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
A novel three-component coupling reaction of ethynylbenziodoxolones (EBXs) with CO2 and amines has been achieved via silver catalysis, thereby providing an efficient method for the construction of a range of structurally diverse and valuable O-β-oxoalkyl carbamates. The transformation proceeds under mild reaction conditions and exhibits a wide substrate scope and good functional group compatibility. In addition, this strategy could be extended to the synthesis of α-acyloxyketones using carboxylic acids as the nucleophiles to react with EBXs.
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Affiliation(s)
- Li Wei
- 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
| | - Yanhui Guo
- 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
| | - Ziyang 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
| | - 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
| | - Chaorong Qi
- 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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2
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Doobary S, Di Tommaso EM, Postole A, Inge AK, Olofsson B. Structure-reactivity analysis of novel hypervalent iodine reagents in S-vinylation of thiols. Front Chem 2024; 12:1376948. [PMID: 38487782 PMCID: PMC10937425 DOI: 10.3389/fchem.2024.1376948] [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: 01/26/2024] [Accepted: 02/19/2024] [Indexed: 03/17/2024] Open
Abstract
The transition-metal free S-vinylation of thiophenols by vinylbenziodoxolones (VBX) constituted an important step forward in hypervalent iodine-mediated vinylations, highlighting the difference to vinyliodonium salts and that the reaction outcome was influenced by the substitution pattern of the benziodoxolone core. In this study, we report several new classes of hypervalent iodine vinylation reagents; vinylbenziodazolones, vinylbenziodoxolonimine and vinyliodoxathiole dioxides. Their synthesis, structural and electronic properties are described and correlated to the S-vinylation outcome, shedding light on some interesting facets of these reagents.
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Affiliation(s)
- Sayad Doobary
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | | | - Alexandru Postole
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | - A. Ken Inge
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Stockholm University, Stockholm, Sweden
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3
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Palamini P, Borrel J, Djaïd M, Delattre M, Waser J. Acyl-Ethynylbenziodoxolone (acyl-EBX): Access to Ketene Dithioarylacetals. Org Lett 2023; 25:7535-7539. [PMID: 37801735 DOI: 10.1021/acs.orglett.3c02869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/08/2023]
Abstract
We report the synthesis of ketene dithioarylacetals in 40-97% yield using thiophenols and acyl-EBXs (ethynylbenziodoxolones) generated in situ from a common hypervalent iodine precursor and alkynyl trifluoroborate salts. The products could be further modified to afford functionalized ketene dithioacetals and various S-substituted heterocycles.
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Affiliation(s)
- Pierre Palamini
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Julien Borrel
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Maël Djaïd
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Morgane Delattre
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 4306, 1015 Lausanne, Switzerland
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4
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Aryl-, Akynyl-, and Alkenylbenziodoxoles: Synthesis and Synthetic Applications. Molecules 2023; 28:molecules28052136. [PMID: 36903382 PMCID: PMC10004369 DOI: 10.3390/molecules28052136] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/02/2023] Open
Abstract
Hypervalent iodine reagents are in high current demand due to their exceptional reactivity in oxidative transformations, as well as in diverse umpolung functionalization reactions. Cyclic hypervalent iodine compounds, known under the general name of benziodoxoles, possess improved thermal stability and synthetic versatility in comparison with their acyclic analogs. Aryl-, alkenyl-, and alkynylbenziodoxoles have recently received wide synthetic applications as efficient reagents for direct arylation, alkenylation, and alkynylation under mild reaction conditions, including transition metal-free conditions as well as photoredox and transition metal catalysis. Using these reagents, a plethora of valuable, hard-to-reach, and structurally diverse complex products can be synthesized by convenient procedures. The review covers the main aspects of the chemistry of benziodoxole-based aryl-, alkynyl-, and alkenyl- transfer reagents, including preparation and synthetic applications.
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5
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Shimizu A, Shibata A, Kano T, Kumai Y, Kawakami R, Esaki H, Fukushima K, Tada N, Itoh A. Synthesis of 4-Imidazolidinones from Diamides and Ethynyl Benziodoxolones via Double Michael-Type Addition: Ethynyl Benziodoxolones as Electrophilic Ynol Synthons. Org Lett 2022; 24:8859-8863. [DOI: 10.1021/acs.orglett.2c03648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ayaka Shimizu
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Atsushi Shibata
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Takashi Kano
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Yuuichi Kumai
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Ryouhei Kawakami
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Hiroyoshi Esaki
- Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
| | - Kazuaki Fukushima
- Hyogo Medical University, 1-1 Mukogawa-cho, Nishinomiya, Hyogo 663-8501, Japan
| | - Norihiro Tada
- 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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6
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Di Tommaso EM, Norrby P, Olofsson B. Explaining Regiodivergent Vinylations with Vinylbenziodoxolones**. Angew Chem Int Ed Engl 2022; 61:e202206347. [PMID: 35748793 PMCID: PMC9541388 DOI: 10.1002/anie.202206347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Indexed: 12/02/2022]
Abstract
Vinylbenziodoxolones have recently been identified as efficient hypervalent iodine(III) reagents for electrophilic vinylations under transition metal‐free conditions. Their unique reactivity allows synthesis of either internal or terminal alkenes, depending on the nucleophile class. This paper constitutes the first mechanistic investigation of VBX vinylations, and makes use of NMR studies, deuterium labelling and computations to rationalize the observed regio‐ and stereochemical outcome. Internal alkene formation in S‐vinylation was found to proceed through the ligand coupling mechanism typical of diaryliodonium salts, whereas terminal alkene formation in P‐vinylations took place via a phosphinous acid‐coordinated VBX complex, which underwent concerted deprotonation and Michael‐type addition. Subsequent base‐assisted protonation and E2 elimination delivered the terminal alkene. The findings can be used to predict the regioselectivity in vinylations of other nucleophile classes.
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Affiliation(s)
- Ester M. Di Tommaso
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Per‐Ola Norrby
- Data Science and Modelling Pharmaceutical Sciences R&D, AstraZeneca Gothenburg Sweden
| | - Berit Olofsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
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7
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Zhao YM, Wang X, Guo ZY, Li H, Zhang JT, Xie MH. Cu-Catalyzed Diarylthiolation of Ynones with Aryl Iodides and Elemental Sulfur: An Access to Tetrasubstituted ( Z)-1,2-Bis(arylthio)alkenes and Benzo[ b][1,4]dithiines. J Org Chem 2022; 87:11796-11804. [PMID: 35993485 DOI: 10.1021/acs.joc.2c01575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A copper-catalyzed three-component reaction of ynones, aryl iodides, and elemental sulfur via a syn-addition process is established. The reaction features operational practicality, broad substrate scope, and readily accessible scale-up synthesis by affording a series of (Z)-1,2-bis(arylthio)alkenes in good to excellent yield. Moreover, benzo[b][1,4]dithiines can be also constructed efficiently by using 1,2-diiodobenzene as the coupling partner.
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Affiliation(s)
- Yi-Ming Zhao
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Xu Wang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Zi-Yi Guo
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Hang Li
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Ji-Tan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Mei-Hua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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8
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Velasco N, Martínez-Núñez C, Fernández-Rodríguez MÁ, Sanz R, Suárez-Pantiga S. NIS/HFIP–Mediated Synthesis of Indene‐based β‐Iodoalkenyl Sulfides from Propargylic Sulfides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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9
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Li J, Zhou C, Liang H, Guo XQ, Chen LM, Kang TR. Direct One‐Pot Construction of Diaryl Thioethers and 1,3‐Diynes through a Copper(I)‐Catalyzed Reaction of λ3‐Iodanes with Thiophenols. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun Li
- Chengdu University School of Pharmacy CHINA
| | - Chuang Zhou
- Chengdu University School of Food and Biological Engineering CHINA
| | - Hong Liang
- Chengdu University School of Pharmacy CHINA
| | | | - Lian-Mei Chen
- Chengdu University School of Food and Biological Engineering CHINA
| | - Tai-Ran Kang
- Chengdu University School of Food and Biological Engineering No 1, SHIDA ROAD 610106 Chengdu CHINA
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10
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Di Tommaso EM, Norrby PO, Olofsson B. Explaining Regio‐Divergent Vinylations with Vinylbenziodoxolones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206347] [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)
| | - Per-Ola Norrby
- AstraZeneca Sweden: AstraZeneca AB Data Science and Modelling, Pharmaceutical Sciences, R&D Gothenburg SWEDEN
| | - Berit Olofsson
- Stockholm University Departemt of Organic Chemistry Arrhenius Laboratory 106 91 Stockholm SWEDEN
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11
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Gao B, Jiang T, Yang R, Yan Q, Liu X, Xie Q, Zhang X. Palladium-Catalyzed Highly Chemo- and Stereoselective Bisthiolation of Terminal Alkynes with Allyl Phenyl Sulfides via C-S Bond Cleavage. J Org Chem 2022; 87:7895-7904. [PMID: 35666286 DOI: 10.1021/acs.joc.2c00545] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile and general method for palladium-catalyzed stereoselective bisthiolation of terminal alkynes with allyl phenyl sulfides has been developed. The scope and versatility of the reaction have been demonstrated, and a broad range of substrates bearing electron-donating and -withdrawing groups on the aromatic rings were all compatible with this reaction, providing the desired (Z)-1,2-dithio-1-alkenes in moderate to good yields. Preliminary mechanistic studies demonstrated that the sulfur source of the desired products may be successively incorporated into alkynes via C-S bond cleavage of two molecules of allyl phenyl sulfides and ruled out the possibility of vinyl sulfides, alkynyl sulfides, and disulfide intermediates being involved in this reaction.
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Affiliation(s)
- Bao Gao
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Tao Jiang
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Ruiting Yang
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Qian Yan
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Xiaojun Liu
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Qiumin Xie
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
| | - Xiuli Zhang
- Department of Applied Chemistry, School of Science, Anhui Agricultural University, Hefei 230036, P. R. China
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12
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He SD, Guo XQ, Li J, Zhang YC, Chen LM, Kang TR. Base‐Promoted Reaction of Phenols with Spirocylic λ3‐iodanes: Access to both 2‐Iodovinyl Aryl Ethers and Diaryl Ethers. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shun-Dong He
- Chengdu University Sichuan Industrial Institute of Antibiotics, School of Pharmacy Chengdu CHINA
| | - Xiao-Qiang Guo
- Chengdu University Sichuan Industrial Institute of Antibiotics, School of Pharmacy CHINA
| | - Jun Li
- Chengdu University Sichuan Industrial Institute of Antibiotics, School of Pharmacy CHINA
| | - Yu-Cheng Zhang
- Chengdu University Sichuan Industrial Institute of Antibiotics, School of Pharmacy CHINA
| | - Lian-Mei Chen
- Chengdu University School of Food and Biological Engineering CHINA
| | - Tai-Ran Kang
- Chengdu University School of Food and Biological Engineering No 1, SHIDA ROAD 610106 Chengdu CHINA
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13
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Reddy RJ, Kumari AH, Sharadha N, Krishna GR. Solvent-Driven Mono- and Bis-sulfenylation of ( E)-β-Iodovinyl Sulfones with Thiols for Flexible Synthesis of 1,2-Thiosulfonylalkenes and 1,2-Dithioalkenes. J Org Chem 2022; 87:3934-3951. [PMID: 35245070 DOI: 10.1021/acs.joc.1c02444] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The nature of solvent is a key factor for stereoselective mono- and bis-thiolation of (E)-β-iodovinyl sulfones with thiols under basic conditions. A novel and unprecedented vicinal bisthiolation of (E)-β-iodovinyl sulfones with thiols under the influence of K2CO3/DMSO at room temperature for quick assembly of (E)-1,2-dithio-1-alkenes is presented. Solvent-induced stereoselective monosulfenylation of (E)-β-iodovinyl sulfones with thiols has also been established for the synthesis of both (E)- and (Z)-1,2-thiosulfonylethenes in MeCN and MeOH, respectively. Moreover, K2CO3-mediated desulfonylative-sulfenylation of (Z)-1,2-thiosulfonylethenes with thiols in DMSO furnished unsymmetrical (Z)-1,2-dithio-1-alkenes for the first time. The solvent-dependent versatile reactivity of (E)-β-iodovinyl sulfones has been successfully explored to provide a set of (E)-/(Z)-1,2-dithio-1-alkenes and (E)-/(Z)-1,2-thiosulfonyl-1-alkenes in good to high yields with excellent stereoselectivities. Notably, this operationally simple process utilizes a broad substrate scope with good functional group tolerance and compatibility. The efficacy of the process has been proven for gram-scale reactions, and plausible mechanistic models are outlined on the basis of experimental results and control experiments.
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Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India
| | - Arram Haritha Kumari
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India
| | - Nunavath Sharadha
- Department of Chemistry, University College of Science, Osmania University, Hyderabad 500 007, India
| | - Gamidi Rama Krishna
- X-ray Crystallography, CSIR-National Chemical Laboratory, Pune 411 008, India
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14
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Borrel J, Waser J. Tosyloxybenziodoxolone: A Platform for Performing the Umpolung of Alkynes in One-Pot Transformations. Org Lett 2021; 24:142-146. [PMID: 34898230 DOI: 10.1021/acs.orglett.1c03771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Ethynylbenziodoxolones (EBXs) are commonly encountered reagents for the electrophilic alkynylation of nucleophiles. Herein, we report a one-pot, two-step process for EBX generation and their direct application in substrate functionalization. Our approach enables us to bypass the originally mandatory isolation and purification of the reagents, resulting in a more efficient synthesis. We could apply this process to seven different transformations involving both two- and one-electron nucleophiles to obtain a large variety of alkynylated products.
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Affiliation(s)
- Julien Borrel
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 1402, 1015 Lausanne, Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis and NCCR Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO, BCH 1402, 1015 Lausanne, Switzerland
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15
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Wang L, Shi F, Qi C, Xu W, Xiong W, Kang B, Jiang H. Stereodivergent synthesis of β-iodoenol carbamates with CO 2 via photocatalysis. Chem Sci 2021; 12:11821-11830. [PMID: 34659721 PMCID: PMC8442729 DOI: 10.1039/d1sc03366b] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/02/2021] [Indexed: 01/24/2023] Open
Abstract
Photocatalytic conversion of carbon dioxide (CO2) into value-added chemicals is of great significance from the viewpoint of green chemistry and sustainable development. Here, we report a stereodivergent synthesis of β-iodoenol carbamates through a photocatalytic three-component coupling of ethynylbenziodoxolones, CO2 and amines. By choosing appropriate photocatalysts, both Z- and E-isomers of β-iodoenol carbamates, which are difficult to prepare using existing methods, can be obtained stereoselectively. This transformation featured mild conditions, excellent functional group compatibility and broad substrate scope. The potential synthetic utility of this protocol was demonstrated by late-stage modification of bioactive molecules and pharmaceuticals as well as by elaborating the products to access a wide range of valuable compounds. More importantly, this strategy could provide a general and practical method for stereodivergent construction of trisubstituted alkenes such as triarylalkenes, which represents a fascinating challenge in the field of organic chemistry research. A series of mechanism investigations revealed that the transformation might proceed through a charge-transfer complex which might be formed through a halogen bond.
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Affiliation(s)
- Lu Wang
- 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
| | - Fuxing Shi
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 P. R. China
| | - Chaorong Qi
- 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
| | - Wenjie Xu
- 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
| | - Wenfang Xiong
- 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
| | - Bangxiong Kang
- 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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16
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Yoshimura A, Huss CD, Liebl M, Rohde GT, Larson SM, Frahm GB, Luedtke MW, Schumacher TJ, Gardner ZS, Zhdankin VV, Postnikov PS, Yusubov MS, Kitamura T, Saito A. Preparation, Structure, and Reactivity of Pseudocyclic β‐Trifluorosulfonyloxy Vinylbenziodoxolone Derivatives. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100341] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
- Department of Chemistry and Biochemistry The College of St. Scholastica Duluth Minnesota 55811 USA
| | - Christopher D. Huss
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | - Mackenzie Liebl
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | | | - Scott M. Larson
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | - Gunnar B. Frahm
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | | | - Tanner J. Schumacher
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | - Zachary S. Gardner
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry University of Minnesota Duluth Minnesota 55812 USA
| | - Pavel S. Postnikov
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
- Department of Solid-State Engineering University of Chemistry and Technology Prague 16628 Czech Republic
| | - Mekhman S. Yusubov
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Tsugio Kitamura
- Department of Chemistry and Applied Chemistry Saga University, Honjo-machi Saga 840-8502 Japan
| | - Akio Saito
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology 2-23-16 Naka-cho Koganei Tokyo 184-8588
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17
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Shimbo D, Maruyama T, Tada N, Itoh A. N-Alkenylation of hydroxamic acid derivatives with ethynyl benziodoxolone to synthesize cis-enamides through vinyl benziodoxolones. Org Biomol Chem 2021; 19:2442-2447. [PMID: 33666207 DOI: 10.1039/d1ob00055a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The stereoselective synthesis of cis-β-N-alkoxyamidevinyl benziodoxolones (cis-β-N-RO-amide-VBXs) from O-alkyl hydroxamic acids in the presence of an ethynyl benziodoxolone-acetonitrile complex (EBX-MeCN) is reported herein. The reaction was performed under mild conditions including an aqueous solvent, a mild base, and room temperature. The reaction tolerated various O-alkyl hydroxamic acids derived from carboxylic acids, such as amino acids, pharmaceuticals, and natural products. Vinyl dideuterated cis-β-N-MeO-amide-VBXs were also synthesized using deuterium oxide as the deuterium source. Valine-derived cis-β-N-MeO-amide-VBX was stereospecifically derivatized to hydroxamic acid-derived cis-enamides without the loss of stereoselectivity or reduction in the deuterium/hydrogen ratio.
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Affiliation(s)
- Daisuke Shimbo
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan.
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18
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Yoshimura A, Huss CD, Saito A, Kitamura T, Zhdankin VV. 2-Iodosylbenzoic acid activated by trifluoromethanesulfonic anhydride: efficient oxidant and electrophilic reagent for preparation of iodonium salts. NEW J CHEM 2021. [DOI: 10.1039/d1nj03787k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Iodosylbenzoic acid in the presence of trifluoromethanesulfonic anhydride is an efficient oxidant and electrophilic reagent useful for preparation of the corresponding alkenyl and aryliodonium salts.
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Affiliation(s)
- Akira Yoshimura
- The Tomsk Polytechnic University, 634050 Tomsk, Russia
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, MN 55812, USA
| | - Christopher D. Huss
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, MN 55812, USA
| | - Akio Saito
- Division of Applied Chemistry, Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Tsugio Kitamura
- Department of Chemistry and Applied Chemistry, Saga University, Honjo-machi, Saga 840-8502, Japan
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth, MN 55812, USA
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19
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Ura T, Shimbo D, Yudasaka M, Tada N, Itoh A. Synthesis of Phenol-Derived cis-Vinyl Ethers Using Ethynyl Benziodoxolone. Chem Asian J 2020; 15:4000-4004. [PMID: 33058543 DOI: 10.1002/asia.202001102] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/07/2020] [Indexed: 12/19/2022]
Abstract
The stereoselective synthesis of cis-β-phenoxyvinyl benziodoxolones (cis-β-phenol-VBXs) from an ethynyl benziodoxolone-acetonitrile complex (EBX-MeCN) and various phenols is reported herein. The reaction tolerates different phenol derivatives, including complex natural products, and can be conducted under mild conditions. The synthesis was performed in an aqueous solvent in the absence and presence of a catalytic amount of a base. Selectively mono- and di-deuterated cis-β-phenol-VBXs were also prepared. cis-β-Phenol-VBXs were stereospecifically derivatized to cis-alkynylvinyl ethers and cis-iodovinyl ethers without loss of stereoselectivity or reduction in the deuterium/hydrogen ratio.
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Affiliation(s)
- Tomoki Ura
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Daisuke Shimbo
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Masaharu Yudasaka
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Norihiro Tada
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
| | - Akichika Itoh
- Laboratory of Pharmaceutical Synthetic Chemistry, Gifu Pharmaceutical University, 1-25-4, Daigaku-nishi, Gifu, 501-1196, Japan
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20
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Declas N, Pisella G, Waser J. Vinylbenziodoxol(on)es: Synthetic Methods and Applications. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000191] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nina Declas
- Laboratory of Catalysis and Organic Synthesis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO Av. Forel 2 CH-1015 Lausanne Switzerland
| | - Guillaume Pisella
- Laboratory of Catalysis and Organic Synthesis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO Av. Forel 2 CH-1015 Lausanne Switzerland
| | - Jerome Waser
- Laboratory of Catalysis and Organic Synthesis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne, EPFL SB ISIC LCSO Av. Forel 2 CH-1015 Lausanne Switzerland
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21
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Castoldi L, Rajkiewicz AA, Olofsson B. Transition metal-free and regioselective vinylation of phosphine oxides and H-phosphinates with VBX reagents. Chem Commun (Camb) 2020; 56:14389-14392. [PMID: 33140771 DOI: 10.1039/d0cc05992g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A series of phosphine oxides and H-phosphinates were vinylated in the presence of the iodine(iii) reagents vinylbenziodoxolones (VBX), providing the corresponding alk-1-enyl phosphine oxides and alk-1-enyl phosphinates in good yields with complete chemo- and regioselectivity. The vinylation proceeds in open flask under mild and transition metal-free conditions.
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Affiliation(s)
- Laura Castoldi
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.
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22
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Lázaro-Milla C, Busto E, Burgos I, Nieto Faza O, Almendros P. Gold-catalyzed reaction of alkynes with diazonium salts under photoirradiation revisited: New alkoxyarylation variant leading to enol ethers. J Catal 2020. [DOI: 10.1016/j.jcat.2020.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Castoldi L, Di Tommaso EM, Reitti M, Gräfen B, Olofsson B. Electrophilic Vinylation of Thiols under Mild and Transition Metal-Free Conditions. Angew Chem Int Ed Engl 2020; 59:15512-15516. [PMID: 32395880 PMCID: PMC7497129 DOI: 10.1002/anie.202002936] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 04/17/2020] [Indexed: 01/28/2023]
Abstract
The iodine(III) reagents vinylbenziodoxolones (VBX) were employed to vinylate a series of aliphatic and aromatic thiols, providing E-alkenyl sulfides with complete chemo- and regioselectivity, as well as excellent stereoselectivity. The methodology displays high functional group tolerance and proceeds under mild and transition metal-free conditions without the need for excess substrate or reagents. Mercaptothiazoles could be vinylated under modified conditions, resulting in opposite stereoselectivity compared to previous reactions with vinyliodonium salts. Novel VBX reagents with substituted benziodoxolone cores were prepared, and improved reactivity was discovered with a dimethyl-substituted core.
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Affiliation(s)
- Laura Castoldi
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Ester Maria Di Tommaso
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Marcus Reitti
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Barbara Gräfen
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
| | - Berit Olofsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University10691StockholmSweden
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24
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Castoldi L, Di Tommaso EM, Reitti M, Gräfen B, Olofsson B. Electrophilic Vinylation of Thiols under Mild and Transition Metal‐Free Conditions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002936] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Laura Castoldi
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Ester Maria Di Tommaso
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Marcus Reitti
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Barbara Gräfen
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
| | - Berit Olofsson
- Department of Organic Chemistry Arrhenius Laboratory Stockholm University 10691 Stockholm Sweden
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