1
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Patra J, Nair AM, Volla CMR. Expedient radical phosphonylations via ligand to metal charge transfer on bismuth. Chem Sci 2024; 15:7136-7143. [PMID: 38756813 PMCID: PMC11095378 DOI: 10.1039/d4sc00692e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 04/08/2024] [Indexed: 05/18/2024] Open
Abstract
Bismuth, in spite of its low cost and low toxicity, has found limited application in organic synthesis. Although the photoactivity of Bi(iii) salts has been well studied, this has not been effectively exploited in photocatalysis. To date, only a single report exists for the Bi-based photocatalysis, wherein carbon centered radicals were generated using ligand to metal charge transfer (LMCT) on bismuth. In this regard, expanding the horizon of bismuth LMCT catalysis for the generation of heteroatom centered radicals, we hereby report an efficient radical phosphonylation using BiCl3 as the LMCT catalyst. Phosphonyl radicals generated via visible-light induced LMCT of BiCl3 were subjected to a variety of transformations like alkylation, amination, alkynylation and cascade cyclizations. The catalytic system tolerated a wide range of substrate classes, delivering excellent yields of the scaffolds. The reactions were scalable and required low catalytic loading of bismuth. Detailed mechanistic studies were carried out to probe the reaction mechanism. Diverse radical phosphonylations leading to the formation of sp3-C-P, sp2-C-P, sp-C-P, and P-N bonds in the current work present the candidacy of bismuth as a versatile photocatalyst for small molecule activation.
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Affiliation(s)
- Jatin Patra
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Akshay M Nair
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Chandra M R Volla
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
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2
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Das S, Mondal PP, Dhibar A, Ruth A, Sahoo B. Unifying N-Sulfinylamines with Alkyltrifluoroborates by Organophotoredox Catalysis: Access to Functionalized Alkylsulfinamides and High-Valent S(VI) Analogues. Org Lett 2024; 26:3679-3684. [PMID: 38647677 DOI: 10.1021/acs.orglett.4c01270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
We describe an organophotoredox-catalyzed sp3 C-S coupling of N-sulfinylamines with bench-stable alkyltrifluoroborates as a latent nucleophilic counterpart en route to alkylsulfinamides in high efficiency. In contrast to the two-electron reactivity of traditional organometallic reagents, this catalytic method reports the single-electron process of an organometallic reagent with N-sulfinylamines in C-S coupling. This mild and scalable protocol offers operational simplicity and exceptional functional group compatibility, including ketone, ester, amide, nitrile, and halides, that is vulnerable to organolithium or Grignard reagents. Additionally, the sulfinamides are conveniently converted to a variety of important S(VI) compounds, like sulfonamides, sulfonimidamides, and sulfonimidates, among others.
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Affiliation(s)
- Subham Das
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695551, Kerala, India
| | - Pinku Prasad Mondal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695551, Kerala, India
| | - Amit Dhibar
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695551, Kerala, India
| | - Aan Ruth
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695551, Kerala, India
| | - Basudev Sahoo
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Thiruvananthapuram 695551, Kerala, India
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3
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Leone M, Milton JP, Gryko D, Neuville L, Masson G. TBADT-Mediated Photocatalytic Stereoselective Radical Alkylation of Chiral N-Sulfinyl Imines: Towards Efficient Synthesis of Diverse Chiral Amines. Chemistry 2024; 30:e202400363. [PMID: 38376252 DOI: 10.1002/chem.202400363] [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: 01/27/2024] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 02/21/2024]
Abstract
Herein we describe a sustainable and efficient photocatalytic method for the stereoselective radical alkylation of chiral sulfinyl imines. By employing readily available non-prefunctionalized radical precursors and the cost-effective TBADT as a direct HAT photocatalyst, we successfully obtain diverse chiral amines with high yields and excellent diastereoselectivity under mild conditions. This method provides an efficient approach for accessing a diverse array of medicinally relevant compounds, including both natural and synthetic α-amino acids, aryl ethyl amines, and other structural motifs commonly found in approved pharmaceuticals and natural product.
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Affiliation(s)
- Matteo Leone
- Institut de Chimie des Substances Naturelles (ICSN) CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Joseph P Milton
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224, Warsaw, Poland
| | - Luc Neuville
- Institut de Chimie des Substances Naturelles (ICSN) CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
- HitCat, Seqens-CNRS joint laboratory, Seqens'Lab, 8 Rue de Rouen, 78440, Porcheville, France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN) CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
- HitCat, Seqens-CNRS joint laboratory, Seqens'Lab, 8 Rue de Rouen, 78440, Porcheville, France
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4
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Noten EA, Ng CH, Wolesensky RM, Stephenson CRJ. A general alkene aminoarylation enabled by N-centred radical reactivity of sulfinamides. Nat Chem 2024; 16:599-606. [PMID: 38228850 DOI: 10.1038/s41557-023-01404-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 11/17/2023] [Indexed: 01/18/2024]
Abstract
Arylethylamines are popular structural elements in bioactive molecules but are often made through a linear series of synthetic steps. A modular protocol to assemble arylethylamines from alkenes in one step would represent a useful advance in discovery chemistry, though current limitations preclude a generally applicable method. In this work we disclose an aminoarylation of alkenes using aryl sulfinamide reagents as bifunctional amine and arene donors. This reaction features excellent regioselectivity and diastereoselectivity on a variety of activated and unactivated substrates. Using a weakly oxidizing photocatalyst, a nitrogen radical is generated under mild conditions and adds to an alkene to form a new C-N bond. A desulfinylative aryl migration event known as a Smiles-Truce rearrangement follows to form a new C-C bond. In this manner, arylethylamines can be rapidly assembled from abundant alkene feedstocks. Moreover, chiral information from the sulfinamide can be transferred via rearrangement to a new carbon stereocentre in the product, thus advancing the development of traceless asymmetric alkene difunctionalization.
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Affiliation(s)
- Efrey A Noten
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Cody H Ng
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
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5
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Tanaka N, Zhu JL, Valencia OL, Schull CR, Scheidt KA. Cooperative Carbene Photocatalysis for β-Amino Ester Synthesis. J Am Chem Soc 2023. [PMID: 37906227 DOI: 10.1021/jacs.3c09875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
β-Amino acids are useful building blocks of bioactive molecules, including peptidomimetics and pharmaceutical compounds. The current limited accessibility to β2,2-type amino acids which bear an α-quaternary center has limited their use in chemical synthesis and biological investigations. Disclosed herein is the development of a new N-heterocyclic carbene/photocatalyzed aminocarboxylation of olefins, affording β2,2-amino esters with high regioselectivity. The generation of nitrogen-centered radicals derived from simple imides via a sequence of deprotonation and single-electron oxidation allows for the subsequent addition to geminal-disubstituted olefins regioselectively. The intermediate tertiary radicals then cross-couple with a stabilized azolium-based radical generated in situ to efficiently construct the quaternary centers. Mechanistic studies, including Stern-Volmer fluorescence quenching experiments, support the proposed catalytic cycle.
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Affiliation(s)
- Nao Tanaka
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Joshua L Zhu
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Oniya L Valencia
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Cullen R Schull
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Karl A Scheidt
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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6
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Li Y, Wang Y, Fang F, Zhang Y, Li C, Yu T, Chen Q, Wang J, Liu H. Constructing N-Acyl/ N-Sulfonyl Aza-Sulfur Derivatives from Amides/Sulfonamides and Thiophthalimides via Oxidant Regulation. Org Lett 2023; 25:6018-6023. [PMID: 37540077 DOI: 10.1021/acs.orglett.3c02166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
Here, we have constructed five distinct types of N-acyl or N-sulfonyl aza-sulfur scaffolds using readily available (sulfon)amides and thiophthalimides with precise regulation of oxidants. Our novel methods feature one-pot mild reaction conditions and simple operation, thereby making them highly convenient for the late-stage diversification of various amide drugs, bioactive molecules, and peptides.
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Affiliation(s)
- Yazhou Li
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Yongkun Wang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Feifei Fang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
- Lingang Laboratory, Shanghai 200031, China
| | - Yu Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
- Lingang Laboratory, Shanghai 200031, China
| | - Chunpu Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Tao Yu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Qiangqiang Chen
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Jiang Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
- Lingang Laboratory, Shanghai 200031, China
| | - Hong Liu
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
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7
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Li L, Zhang SQ, Chen Y, Cui X, Zhao G, Tang Z, Li GX. Photoredox Alkylation of Sulfinylamine Enables the Synthesis of Highly Functionalized Sulfinamides and S(VI) Derivatives. ACS Catal 2022. [DOI: 10.1021/acscatal.2c05169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Ling Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
- College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Shi-qi Zhang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Yue Chen
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Xin Cui
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Gang Zhao
- College of Chemical Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Guang-xun Li
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
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8
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Zou FF, Luo Z, Yang YT, Zhuang X, Hong CM, Liu ZQ, Li WF, Li QH, Liu TL. Sulfonylation of Propargyl Alcohols with Sulfinamides for the Synthesis of Allenyl Sulfones. J Org Chem 2022; 87:15061-15070. [DOI: 10.1021/acs.joc.2c01495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Fei-Fei Zou
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zhen Luo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Yu-Ting Yang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Xin Zhuang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Chuan-Ming Hong
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Zheng-Qiang Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Wan-Fang Li
- College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, 400715, China
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9
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Dagar N, Singh S, Raha Roy S. Synergistic Effect of Cerium in Dual Photoinduced Ligand-to-Metal Charge Transfer and Lewis Acid Catalysis: Diastereoselective Alkylation of Coumarins. J Org Chem 2022; 87:8970-8982. [PMID: 35759362 DOI: 10.1021/acs.joc.2c00677] [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
We report the dual role of cerium to promote the photoinduced ligand-to-metal charge transfer (LMCT) process for the generation of the alkyl radical and subsequent Lewis acid catalysis to construct stereodefined C-C bonds. This paradigm utilized ubiquitous carboxylic acids as alkyl radical surrogates and offers excellent diastereoselectivity for the formation of C-4 alkylated coumarins in good to excellent yield. UV-vis spectroscopy studies in combination with in situ Fourier transform infrared spectroscopy are consistent with the proposed mechanism, supporting the participation of the CeIV-carboxylate complex in photoinduced LMCT and its subsequent homolysis to generate the alkyl radial through the exclusion of CO2. Finally, the oxophilicity of cerium enables a two-point complexation with the in situ generated enolate intermediate and facilitates the diastereoselective protonation to form the desired product. Furthermore, this mild and atom-economical catalytic manifolds allow the late-stage modification of pharmaceuticals.
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Affiliation(s)
- Neha Dagar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Swati Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sudipta Raha Roy
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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10
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Huang CY, Li J, Li CJ. Photocatalytic C(sp 3) radical generation via C-H, C-C, and C-X bond cleavage. Chem Sci 2022; 13:5465-5504. [PMID: 35694342 PMCID: PMC9116372 DOI: 10.1039/d2sc00202g] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 04/17/2022] [Indexed: 12/12/2022] Open
Abstract
C(sp3) radicals (R˙) are of broad research interest and synthetic utility. This review collects some of the most recent advancements in photocatalytic R˙ generation and highlights representative examples in this field. Based on the key bond cleavages that generate R˙, these contributions are divided into C–H, C–C, and C–X bond cleavages. A general mechanistic scenario and key R˙-forming steps are presented and discussed in each section. C(sp3) radicals (R˙) are of broad research interest and synthetic utility.![]()
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Affiliation(s)
- Chia-Yu Huang
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street W. Montreal Quebec H3A 0B8 Canada
| | - Jianbin Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street W. Montreal Quebec H3A 0B8 Canada
| | - Chao-Jun Li
- Department of Chemistry, FRQNT Centre for Green Chemistry and Catalysis, McGill University 801 Sherbrooke Street W. Montreal Quebec H3A 0B8 Canada
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11
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Corcé V, Ollivier C, Fensterbank L. Boron, silicon, nitrogen and sulfur-based contemporary precursors for the generation of alkyl radicals by single electron transfer and their synthetic utilization. Chem Soc Rev 2022; 51:1470-1510. [PMID: 35113115 DOI: 10.1039/d1cs01084k] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Recent developments in the use of boron, silicon, nitrogen and sulfur derivatives in single-electron transfer reactions for the generation of alkyl radicals are described. Photoredox catalyzed, electrochemistry promoted or thermally-induced oxidative and reductive processes are discussed highlighting their synthetic scope and discussing their mechanistic pathways.
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Affiliation(s)
- Vincent Corcé
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire - 4 Place Jussieu, CC 229, F-75252 Paris Cedex 05, France.
| | - Cyril Ollivier
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire - 4 Place Jussieu, CC 229, F-75252 Paris Cedex 05, France.
| | - Louis Fensterbank
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire - 4 Place Jussieu, CC 229, F-75252 Paris Cedex 05, France.
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12
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Murray PD, Cox JH, Chiappini ND, Roos CB, McLoughlin EA, Hejna BG, Nguyen ST, Ripberger HH, Ganley JM, Tsui E, Shin NY, Koronkiewicz B, Qiu G, Knowles RR. Photochemical and Electrochemical Applications of Proton-Coupled Electron Transfer in Organic Synthesis. Chem Rev 2022; 122:2017-2291. [PMID: 34813277 PMCID: PMC8796287 DOI: 10.1021/acs.chemrev.1c00374] [Citation(s) in RCA: 163] [Impact Index Per Article: 81.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Indexed: 12/16/2022]
Abstract
We present here a review of the photochemical and electrochemical applications of multi-site proton-coupled electron transfer (MS-PCET) in organic synthesis. MS-PCETs are redox mechanisms in which both an electron and a proton are exchanged together, often in a concerted elementary step. As such, MS-PCET can function as a non-classical mechanism for homolytic bond activation, providing opportunities to generate synthetically useful free radical intermediates directly from a wide variety of common organic functional groups. We present an introduction to MS-PCET and a practitioner's guide to reaction design, with an emphasis on the unique energetic and selectivity features that are characteristic of this reaction class. We then present chapters on oxidative N-H, O-H, S-H, and C-H bond homolysis methods, for the generation of the corresponding neutral radical species. Then, chapters for reductive PCET activations involving carbonyl, imine, other X═Y π-systems, and heteroarenes, where neutral ketyl, α-amino, and heteroarene-derived radicals can be generated. Finally, we present chapters on the applications of MS-PCET in asymmetric catalysis and in materials and device applications. Within each chapter, we subdivide by the functional group undergoing homolysis, and thereafter by the type of transformation being promoted. Methods published prior to the end of December 2020 are presented.
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Affiliation(s)
- Philip
R. D. Murray
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - James H. Cox
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nicholas D. Chiappini
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Casey B. Roos
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | | | - Benjamin G. Hejna
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Suong T. Nguyen
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Hunter H. Ripberger
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Jacob M. Ganley
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Elaine Tsui
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Nick Y. Shin
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Brian Koronkiewicz
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Guanqi Qiu
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton
University, Princeton, New Jersey 08544, United States
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13
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Uchikura T, Fujii T, Moriyama K, Akiyama T. Visible-light driven, metal-free hydroalkylation of alkenes mediated by electron donor-acceptor complex using benzothiazolines. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tatsuhiro Uchikura
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Tatsuya Fujii
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Kaworuko Moriyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
| | - Takahiko Akiyama
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1, Mejiro, Toshima-ku, Tokyo, 171-8588
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14
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Ji YZ, Zhang C, Wang JH, Li HJ, Wu YC. Direct conversion of sulfinamides to thiosulfonates without the use of additional redox agents under metal-free conditions. Org Biomol Chem 2021; 19:9291-9298. [PMID: 34632475 DOI: 10.1039/d1ob01714d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Direct conversion of sulfinamides to thiosulfonates is described. Without the use of additional redox agents, the reaction proceeds smoothly in the presence of TFA under metal-free conditions. This protocol possesses many advantages such as odourless and stable starting materials, broad substrate scope, selective synthesis, and mild reaction conditions.
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Affiliation(s)
- Yuan-Zhao Ji
- Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China.
| | - Chi Zhang
- Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China.
| | - Jun-Hu Wang
- Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China.
| | - Hui-Jing Li
- Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China. .,Weihai Huiankang Biotechnology Co., Ltd, Weihai 264200, P. R. China
| | - Yan-Chao Wu
- Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, P. R. China.
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15
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In-situ-generation of alkylsilyl peroxides from alkyl hydroperoxides and their subsequent copper-catalyzed functionalization with organosilicon compounds. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Nguyen LAT, Le TN, Duong CT, Vo CT, Duus F, Luu TXT. Direct synthesis of sulfinic esters via ultrasound accelerated tandem reaction of thiols and alcohols with N-bromosuccinimide. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1928669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Lan-Anh Thi Nguyen
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Tri-Nghia Le
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Cong-Thang Duong
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Chi-Tam Vo
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
| | - Fritz Duus
- Department of Science, Systems and Models, Roskilde University Roskilde, Denmark
| | - Thi Xuan Thi Luu
- Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Vietnam
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17
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Morofuji T, Matsui Y, Ohno M, Ikarashi G, Kano N. Photocatalytic Giese-Type Reaction with Alkylsilicates Bearing C,O-Bidentate Ligands. Chemistry 2021; 27:6713-6718. [PMID: 33382504 DOI: 10.1002/chem.202005300] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Indexed: 02/02/2023]
Abstract
Herein, a photocatalytic Giese-type reaction with alkylsilicates bearing C,O-bidentate ligands as stable alkyl radical precursors has been reported. The alkylsilicates were prepared in one step from organometallic reagents. Not only primary, secondary, and tertiary alkyl radicals, but also elusive methyl radicals, could be generated by using the present reaction system. The generated radicals were trapped by electron-deficient olefins bearing various functional groups to give the desired alkyl adducts. The silicon byproduct can be recovered after the photoreaction. The radical generation process was investigated by theoretical calculations, which provided an insight into the facile generation of methyl radicals from methylsilicate bearing C,O-bidentate ligands.
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Affiliation(s)
- Tatsuya Morofuji
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 1718588, Japan
| | - Yu Matsui
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 1718588, Japan
| | - Misa Ohno
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 1718588, Japan
| | - Gun Ikarashi
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 1718588, Japan.,Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 1130033, Japan
| | - Naokazu Kano
- Department of Chemistry, Faculty of Science, Gakushuin University, 1-5-1 Mejiro, Toshima-ku, Tokyo, 1718588, Japan
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18
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Zhu G, Duan ZC, Zhu H, Qi M, Wang D. Iridium and copper supported on silicon dioxide as chemoselective catalysts for dehydrogenation and borrowing hydrogen reactions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111516] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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19
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Pitre SP, Allred TK, Overman LE. Lewis Acid Activation of Fragment-Coupling Reactions of Tertiary Carbon Radicals Promoted by Visible-Light Irradiation of EDA Complexes. Org Lett 2021; 23:1103-1106. [PMID: 33492152 DOI: 10.1021/acs.orglett.1c00023] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The addition of tertiary carbon radicals generated from N-(acyloxy)phthalimide esters to cyclic α,β-unsaturated ketones and lactones is markedly enhanced by the addition of substoichiometric amounts of a Ln(OTf)3. The reaction is accomplished by irradiation with visible light in the absence of a photosensitizer and is suggested to proceed by excitation of a ternary electron donor-acceptor complex between the NHPI ester, Hantzsch ester, and a Ln(OTf)3.
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Affiliation(s)
- Spencer P Pitre
- Department of Chemistry, Oklahoma State University, 107 Physical Sciences, Stillwater, Oklahoma 74078, United States
| | - Tyler K Allred
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Larry E Overman
- Department of Chemistry, University of California, Irvine, California 92697-2025, United States
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20
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Gao J, Feng J, Du D. Shining Light on C−S Bonds: Recent Advances in C−C Bond Formation Reactions via C−S Bond Cleavage under Photoredox Catalysis. Chem Asian J 2020; 15:3637-3659. [DOI: 10.1002/asia.202000905] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/18/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Jian Gao
- Department of Chemistry State Key Laboratory of Natural Medicines China Pharmaceutical University 24 Tong Jia Xiang Nanjing 210009 P. R. China
| | - Jie Feng
- Department of Chemistry State Key Laboratory of Natural Medicines China Pharmaceutical University 24 Tong Jia Xiang Nanjing 210009 P. R. China
| | - Ding Du
- Department of Chemistry State Key Laboratory of Natural Medicines China Pharmaceutical University 24 Tong Jia Xiang Nanjing 210009 P. R. China
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21
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Crespi S, Fagnoni M. Generation of Alkyl Radicals: From the Tyranny of Tin to the Photon Democracy. Chem Rev 2020; 120:9790-9833. [PMID: 32786419 PMCID: PMC8009483 DOI: 10.1021/acs.chemrev.0c00278] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 01/09/2023]
Abstract
Alkyl radicals are key intermediates in organic synthesis. Their classic generation from alkyl halides has a severe drawback due to the employment of toxic tin hydrides to the point that "flight from the tyranny of tin" in radical processes was considered for a long time an unavoidable issue. This review summarizes the main alternative approaches for the generation of unstabilized alkyl radicals, using photons as traceless promoters. The recent development in photochemical and photocatalyzed processes enabled the discovery of a plethora of new alkyl radical precursors, opening the world of radical chemistry to a broader community, thus allowing a new era of photon democracy.
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Affiliation(s)
- Stefano Crespi
- Stratingh
Institute for Chemistry, Center for Systems
Chemistry University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Maurizio Fagnoni
- PhotoGreen
Lab, Department of Chemistry, V. Le Taramelli 10, 27100 Pavia, Italy
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22
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Li L, Fang L, Wu W, Zhu J. Visible-Light-Mediated Intermolecular Radical Conjugate Addition for the Construction of Vicinal Quaternary Carbon Centers. Org Lett 2020; 22:5401-5406. [PMID: 32628495 DOI: 10.1021/acs.orglett.0c01724] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The visible light-driven organophotoredox catalysis is reported for the construction of vicinal quaternary carbon centers. Intermolecular conjugate addition of alkyl radicals, derived from 2,2-disubstituted dihydroquinazolinones, to Michael acceptors under blue light irradiation and rhodamine B catalysis allows the facile assembly of diverse, vicinal secondary/quaternary, tertiary/quaternary, and quaternary/quaternary carbon centers at room temperature. Our method provides a synthetically versatile protocol since both 2,2-disubstituted dihydroquinazolinones and Michael acceptors can be conveniently prepared from readily available ketones.
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Affiliation(s)
- Lei Li
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China
| | - Lili Fang
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China
| | - Weiping Wu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China
| | - Jin Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Chemistry for Life Sciences, Nanjing University, Nanjing 210023, China
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23
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Gao Y, Wu Z, Yu L, Wang Y, Pan Y. Alkyl Carbazates for Electrochemical Deoxygenative Functionalization of Heteroarenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001571] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yongyuan Gao
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Zhengguang Wu
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Lei Yu
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi Wang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi Pan
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
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24
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Gao Y, Wu Z, Yu L, Wang Y, Pan Y. Alkyl Carbazates for Electrochemical Deoxygenative Functionalization of Heteroarenes. Angew Chem Int Ed Engl 2020; 59:10859-10863. [DOI: 10.1002/anie.202001571] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/07/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Yongyuan Gao
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Zhengguang Wu
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Lei Yu
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi Wang
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi Pan
- State Key Laboratory of Coordination ChemistryJiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
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25
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Lo PKT, Oliver GA, Willis MC. Sulfinamide Synthesis Using Organometallic Reagents, DABSO, and Amines. J Org Chem 2020; 85:5753-5760. [PMID: 32286844 PMCID: PMC7304903 DOI: 10.1021/acs.joc.0c00334] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
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We report the synthesis of sulfinamides using organometallic reagents,
a sulfur dioxide reagent, and nitrogen based-nucleophiles. The addition
of an organometallic reagent to the commercially available sulfur
dioxide surrogate, DABSO, generates a metal sulfinate which is reacted
with thionyl chloride to form a sulfinyl chloride intermediate. Trapping
the sulfinyl chlorides in situ with a variety of nitrogen nucleophiles
delivers sulfinamides in 32–83% yields. Each stage of the process
is performed at room temperature, and the total reaction time is only
1.5 h.
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Affiliation(s)
- Pui Kin Tony Lo
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Gwyndaf A Oliver
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Michael C Willis
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA, United Kingdom
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26
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Yang Q, Liu N, Yan J, Ren Z, Wang L. Visible Light‐ and Heat‐Promoted C−O Coupling Reaction of Phenols and Aryl Halides. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.201900666] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Qing‐Qing Yang
- Key laboratory of inorganic nonmetallic crystalline and energy conversion materials College of Materials and Chemical EngineeringChina Three Gorges University Yichang Hubei 443002 China
| | - Na Liu
- Key laboratory of inorganic nonmetallic crystalline and energy conversion materials College of Materials and Chemical EngineeringChina Three Gorges University Yichang Hubei 443002 China
| | - Jia‐Ying Yan
- Key laboratory of inorganic nonmetallic crystalline and energy conversion materials College of Materials and Chemical EngineeringChina Three Gorges University Yichang Hubei 443002 China
| | - Zhi‐Lin Ren
- College of Chemical EngineeringHubei University of Arts and Science, Xiangyang Hubei 441053 China
| | - Long Wang
- Key laboratory of inorganic nonmetallic crystalline and energy conversion materials College of Materials and Chemical EngineeringChina Three Gorges University Yichang Hubei 443002 China
- Material Analysis and Testing CenterChina Three Gorges University Yichang Hubei 443002 China
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27
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Tripathi KN, Belal M, Singh RP. Organo Photoinduced Decarboxylative Alkylation of Coumarins with N-(Acyloxy)phthalimide. J Org Chem 2019; 85:1193-1201. [DOI: 10.1021/acs.joc.9b00977] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Krishna N. Tripathi
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
| | - Md. Belal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
| | - Ravi P. Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India
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28
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Liu XY, Qin Y. Indole Alkaloid Synthesis Facilitated by Photoredox Catalytic Radical Cascade Reactions. Acc Chem Res 2019; 52:1877-1891. [PMID: 31264824 DOI: 10.1021/acs.accounts.9b00246] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The monoterpene indole alkaloids, containing over 3000 known members and more than 40 structural types, represent one of the largest natural product families that have proven to be an important drug source. Their complex chemical structures and significant biological activities have rendered these alkaloids attractive targets in the synthetic community for decades. While chemists have developed many synthetic methodologies and tactics toward this end, general strategies allowing divergent access to a large variety of structural types and members of monoterpene indole alkaloids are still limited and highly desirable. Photoredox catalysis has emerged in recent years as a powerful tool to realize chemical transformations via single electron transfer (SET) processes that would otherwise be inaccessible. In particular, when the radical species generated by the visible light photoinduced approach is involved in well-designed cascade reactions, the formation of multiple chemical bonds and the assembly of structurally complex molecules would be secured in a green and economic manner. This protocol might serve to remodel the way of thinking for the preparation of useful pharmaceuticals and complex natural products. Due to a long-standing interest in the synthesis of diverse indole alkaloids, our group previously developed a cyclopropanation strategy ( Qin , Y. Acc. Chem. Res. 2011 , 44 , 447 ) that was versatile to access several intriguing indole alkaloid molecules. With an idea of developing more general synthetic approaches to as many members of various indole alkaloids as possible, we recently disclosed new radical cascade reactions enabled by photoredox catalysis, leading to the collective asymmetric total synthesis of 42 monoterpene indole alkaloids belonging to 7 structural types. Several important discoveries deserve to be highlighted. First, the use of photocatalytic technology allowed us to achieve an unusual reaction pathway that reversed the conventional reactivity between two nucleophilic amine and enamine groups. Second, a crucial nitrogen-centered radical, directly generated from a sulfonamide N-H bond, triggered three types of cascade reactions to deliver indole alkaloid cores with manifold functionalities and controllable diastereoselectivities. Moreover, expansion of this catalytic, scalable, and general methodology permitted the total synthesis of a large collection of indole alkaloids. In this Account, we wish to provide a complete picture of our studies concerning the original synthetic design, method development, and applications in total synthesis. It is anticipated that the visible-light-driven cascade strategy will find further utility in the realm of natural product synthesis.
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Affiliation(s)
- Xiao-Yu Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yong Qin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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29
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James MJ, Strieth‐Kalthoff F, Sandfort F, Klauck FJR, Wagener F, Glorius F. Visible‐Light‐Mediated Charge Transfer Enables C−C Bond Formation with Traceless Acceptor Groups. Chemistry 2019; 25:8240-8244. [DOI: 10.1002/chem.201901397] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Michael J. James
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Felix Strieth‐Kalthoff
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Frederik Sandfort
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Felix J. R. Klauck
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Felicitas Wagener
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstrasse 40 48149 Münster Germany
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30
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Zhao Q, Chen J, Zhou X, Yu X, Chen J, Xiao W. Photogenerated Neutral Nitrogen Radical Catalyzed Bifunctionalization of Alkenes. Chemistry 2019; 25:8024-8029. [DOI: 10.1002/chem.201901665] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Indexed: 12/27/2022]
Affiliation(s)
- Quan‐Qing Zhao
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Jun Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Xue‐Song Zhou
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Xiao‐Ye Yu
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Jia‐Rong Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
| | - Wen‐Jing Xiao
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green SynthesisKey Laboratory of Pesticides & Chemical Biology Ministry of EducationCollege of ChemistryCentral China Normal University 152 Luoyu Road Wuhan Hubei 430079 P. R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry 345 Lingling Road Shanghai 200032 P. R. China
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31
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Ji YZ, Zhang JY, Li HJ, Han C, Yang YK, Wu YC. Regioselective and oxidant-free sulfinylation of indoles and pyrroles with sulfinamides. Org Biomol Chem 2019; 17:4789-4800. [PMID: 31033985 DOI: 10.1039/c9ob00526a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An unexpected time-controlled highly selective C3- or C2-sulfinylation of pyrroles with sulfinamides is reported for the first time. The sulfinylation of indoles with sulfinamides using this protocol is oxidant-free and can be performed under obviously more feasible conditions (1.2 equiv. of indoles, 10 min) in comparison with the precedent procedure (3-20 equiv. of indoles, 16-18 h, ammonium persulfate as oxidant, hv). A variety of functional groups were tolerated, and various C2-thioindoles and C2/3-thiopyrroles were obtained in moderate to excellent yields.
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Affiliation(s)
- Yuan-Zhao Ji
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, P. R. China.
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32
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Syroeshkin MA, Kuriakose F, Saverina EA, Timofeeva VA, Egorov MP, Alabugin IV. Hochkonversion von Reduktionsmitteln. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201807247] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mikhail A. Syroeshkin
- N. D. Zelinsky Institute of Organic Chemistry Leninskyprosp. 47 119991 Moskau Russland
| | - Febin Kuriakose
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL USA
| | - Evgeniya A. Saverina
- N. D. Zelinsky Institute of Organic Chemistry Leninskyprosp. 47 119991 Moskau Russland
- UMR CNRS 6226 ISCR University of Rennes 1 Rennes Frankreich
| | | | - Mikhail P. Egorov
- N. D. Zelinsky Institute of Organic Chemistry Leninskyprosp. 47 119991 Moskau Russland
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL USA
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33
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Syroeshkin MA, Kuriakose F, Saverina EA, Timofeeva VA, Egorov MP, Alabugin IV. Upconversion of Reductants. Angew Chem Int Ed Engl 2019; 58:5532-5550. [DOI: 10.1002/anie.201807247] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Mikhail A. Syroeshkin
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russia
| | - Febin Kuriakose
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL USA
| | - Evgeniya A. Saverina
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russia
- UMR CNRS 6226 ISCR University of Rennes 1 Rennes France
| | | | - Mikhail P. Egorov
- N. D. Zelinsky Institute of Organic Chemistry Leninsky prosp. 47 119991 Moscow Russia
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry Florida State University Tallahassee FL USA
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34
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Uchikura T, Moriyama K, Toda M, Mouri T, Ibáñez I, Akiyama T. Benzothiazolines as radical transfer reagents: hydroalkylation and hydroacylation of alkenes by radical generation under photoirradiation conditions. Chem Commun (Camb) 2019; 55:11171-11174. [DOI: 10.1039/c9cc05336k] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel radical transfer reagents under photoirradiation conditions were developed by the use of benzothiazoline derivatives.
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Affiliation(s)
- Tatsuhiro Uchikura
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
| | - Kaworuko Moriyama
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
| | - Mitsuhiro Toda
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
| | - Toshiki Mouri
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
| | - Ignacio Ibáñez
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
| | - Takahiko Akiyama
- Department of Chemistry
- Faculty of Science
- Gakushuin University
- Tokyo 171-8588
- Japan
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35
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Xie T, Zhang YW, Liu LL, Shen ZL, Loh TP, Chu XQ. Polycyclic heteroaromatic ring construction driven by silver/cobalt co-catalyzed desulfonylative and defluorinative fragment-recombination of enol nonaflates with amidines. Chem Commun (Camb) 2018; 54:12722-12725. [DOI: 10.1039/c8cc07409g] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel Ag(i)/Co(ii) co-catalyzed tandem fragmentation and recombination reaction commencing from detachable nonaflates and amidines has been developed.
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Affiliation(s)
- Ting Xie
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Yao-Wei Zhang
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Li-Li Liu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Zhi-Liang Shen
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Teck-Peng Loh
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Xue-Qiang Chu
- Institute of Advanced Synthesis
- School of Chemistry and Molecular Engineering
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
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Di J, He H, Wang F, Xue F, Liu XY, Qin Y. Regiospecific alkyl addition of (hetero)arene-fused thiophenes enabled by a visible-light-mediated photocatalytic desulfuration approach. Chem Commun (Camb) 2018; 54:4692-4695. [PMID: 29676430 DOI: 10.1039/c8cc02052c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A unique photoredox desulfuration approach enabling the regiospecific alkyl addition of (hetero)arene-fused thiophenes is presented.
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Affiliation(s)
- Jiamei Di
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Huan He
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Falu Wang
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Fei Xue
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Xiao-Yu Liu
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
| | - Yong Qin
- Key Laboratory of Drug Targeting and Drug Delivery Systems of the Ministry of Education
- and Sichuan Research Center of Precision Engineering Technology for Small Molecule Drugs
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
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