1
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Periasamy K, Gordeeva S, Bolm C. Syntheses of Sulfilimines by Iron-Catalyzed Iminations of Sulfides with 2,2,2-Trichloroethyl Sulfamate. J Org Chem 2024; 89:9705-9709. [PMID: 38870476 DOI: 10.1021/acs.joc.4c01250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
N-protected sulfilimines are prepared by imination of sulfides with a combination of 2,2,2-trichloroethyl sulfamate (H2NTces), (diacetoxyiodo)benzene (PIDA), and a catalytic amount of iron triflate. The reaction proceeds at room temperature, and after only 3 h a wide range of acyclic and cyclic NTces-sulfilimines with various functional groups and (hetero)aryl substituents can be obtained. By subsequent oxidation followed by deprotection, the products are converted into NH-sulfoximines.
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Affiliation(s)
- Kiruthika Periasamy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Sofya Gordeeva
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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2
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Zhu SY, He WJ, Shen GC, Bai ZQ, Song FF, He G, Wang H, Chen G. Ligand-Promoted Iron-Catalyzed Nitrene Transfer for the Synthesis of Hydrazines and Triazanes through N-Amidation of Arylamines. Angew Chem Int Ed Engl 2024; 63:e202312465. [PMID: 37997539 DOI: 10.1002/anie.202312465] [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: 08/25/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Herein, we report that bulky alkylphosphines such as PtBu3 can switch the roles from actor to spectator ligands to promote the FeCl2 -catalyzed N-amidation reaction of arylamines with dioxazolones, giving hydrazides in high efficiency and chemoselectivity. Mechanistic studies indicated that the phosphine ligands could facilitate the decarboxylation of dioxazolones on the Fe center, and the hydrogen bonding interactions between the arylamines and the ligands on Fe nitrenoid intermediates might play a role in modulating the delicate interplay between the phosphine ligand, arylamine, and acyl nitrene N, favoring N-N coupling over N-P coupling. The new ligand-promoted N-amidation protocols offer a convenient way to access various challenging triazane compounds via double or sequential N-amidation of primary arylamines.
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Affiliation(s)
- Shi-Yang Zhu
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Wen-Ji He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Guan-Chi Shen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zi-Qian Bai
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Fang-Fang Song
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gang He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Hao Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Gong Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Frontiers Science Center for New Organic Matter, Nankai University, Tianjin, 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
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3
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Dhak MS, Arunprasath D, Argent SP, Cuthbertson JD. A Domino Radical Amidation/Semipinacol Approach to All-Carbon Quaternary Centers Bearing an Aminomethyl Group. Chemistry 2023; 29:e202300922. [PMID: 37278542 PMCID: PMC10947466 DOI: 10.1002/chem.202300922] [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: 03/23/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/07/2023]
Abstract
A photoredox-mediated radical amidation ring-expansion sequence that enables the generation of all-carbon quaternary centers bearing a protected aminomethyl substituent is described. The methodology can be applied to both styrene and unactivated alkene substrates generating structurally diverse sp3 -rich amine derivatives in a concise manner.
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Affiliation(s)
- Mandeep S. Dhak
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable ChemistryUniversity of Nottingham, Jubilee CampusTriumph RoadNottinghamNG7 2TUUK
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Dhanarajan Arunprasath
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable ChemistryUniversity of Nottingham, Jubilee CampusTriumph RoadNottinghamNG7 2TUUK
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - Stephen P. Argent
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
| | - James D. Cuthbertson
- GlaxoSmithKline Carbon Neutral Laboratories for Sustainable ChemistryUniversity of Nottingham, Jubilee CampusTriumph RoadNottinghamNG7 2TUUK
- School of ChemistryUniversity of NottinghamUniversity ParkNottinghamNG7 2RDUK
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4
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Greenwood NS, Ellman JA. Sulfur-Arylation of Sulfenamides via Ullmann-Type Coupling with (Hetero)aryl Iodides. Org Lett 2023; 25:4759-4764. [PMID: 37338140 PMCID: PMC10330900 DOI: 10.1021/acs.orglett.3c01874] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Sulfur-(hetero)arylation of sulfenamides with commercially abundant (hetero)aryl iodides by Ullmann-type coupling with inexpensive copper(I) iodide as the catalyst is reported. A broad scope of reaction inputs was demonstrated, including both aryl and alkyl sulfenamides and highly sterically hindered aryl and 5- and 6-membered ring heteroaryl iodides. Relevant to many bioactive high oxidation state sulfur compounds, the (hetero)arylation of S-methyl sulfenamides is reported, including for complex aryl iodides. Smiles rearrangement of electron-deficient S-heteroaryl sulfilimines is also disclosed.
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Affiliation(s)
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
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5
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Huang G, Lu X, Liang F. Redox-Neutral Strategy for Sulfilimines Synthesis via S-Arylation of Sulfenamides. Org Lett 2023; 25:3179-3183. [PMID: 37104714 DOI: 10.1021/acs.orglett.3c01077] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
In this investigation, an unprecedented transition-metal-free and redox-neutral synthesis of sulfilimines was realized through the S-arylation of readily obtainable sulfenamides employing diaryliodonium salts. The pivotal step encompassed the resonance between bivalent nitrogen-centered anions, engendered postdeprotonation of sulfenamides under alkaline conditions, and sulfinimidoyl anions. The experimental outcomes demonstrate that sulfinimidoyl anionic species function as efficacious nucleophilic reagents, affording sulfilimines with notable to exceptional yields and superlative chemoselectivity, all executed within a transition-metal-free protocol and under exceptionally mild conditions.
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Affiliation(s)
- Guoling Huang
- Laboratory of Marine Green Fine Chemicals, School of Chemistry and Chemical Engineering, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang 524048, P. R. China
| | - Xunbo Lu
- Laboratory of Marine Green Fine Chemicals, School of Chemistry and Chemical Engineering, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang 524048, P. R. China
| | - Fangpeng Liang
- Laboratory of Marine Green Fine Chemicals, School of Chemistry and Chemical Engineering, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang 524048, P. R. China
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6
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Lu X, Huang G, Ye J, Bashir MA, Su J, Yang K, Liang F, Xu X. Hypervalent Iodine-Mediated Synthesis of Sulfinimidate Esters from Sulfenamides. Org Lett 2023; 25:2151-2156. [PMID: 36946517 DOI: 10.1021/acs.orglett.3c00678] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
In this study, we present a novel and efficient approach for the oxidative esterification of sulfenamides using phenyliodonium diacetate, enabling the synthesis of sulfinimidate esters and sulfilimines under mild and metal-free conditions, with yields reaching up to 99%. The protocol is readily scalable and compatible with a diverse range of substrates and functional groups, and we demonstrate its potential for late-stage functionalization of pharmacologically relevant molecules. Furthermore, we propose a plausible reaction mechanism to account for the observed sequence of events.
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Affiliation(s)
- Xunbo Lu
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Guoling Huang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Jianlin Ye
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Muhammad Adnan Bashir
- Peking University ShenZhen Graduate School, Shenzhen, Guangdong 518055, People's Republic of China
| | - Jianfang Su
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Kaiyuan Yang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Fangpeng Liang
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
| | - Xinyu Xu
- School of Chemistry and Chemical Engineering, Laboratory of Marine Green Fine Chemicals, Lingnan Normal University (LNU), 29 Cunjin Road, Zhanjiang, Guangdong 524048, People's Republic of China
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7
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Synthesis of Sulfoximines and Sulfonimidamides Using Hypervalent Iodine Mediated NH Transfer. Molecules 2023; 28:molecules28031120. [PMID: 36770787 PMCID: PMC9920176 DOI: 10.3390/molecules28031120] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/03/2023] [Accepted: 01/12/2023] [Indexed: 01/24/2023] Open
Abstract
The development of NH transfer reactions using hypervalent iodine and simple sources of ammonia has facilitated the synthesis of sulfoximines and sulfonimidamides for applications across the chemical sciences. Perhaps most notably, the methods have been widely applied in medicinal chemistry and in the preparation of biologically active compounds, including in the large-scale preparation of an API intermediate. This review provides an overview of the development of these synthetic methods involving an intermediate iodonitrene since our initial report in 2016 on the conversion of sulfoxides into sulfoximines. This review covers the NH transfer to sulfoxides and sulfinamides, and the simultaneous NH/O transfer to sulfides and sulfenamides to form sulfoximines and sulfonimidamides, respectively. The mechanism of the reactions and the identification of key intermediates are discussed. Developments in the choice of reagents, and in the reaction conditions and setups used are described.
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8
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Zhong Z, Chesti J, Armstrong A, Bull JA. Synthesis of Sulfoximine Propargyl Carbamates under Improved Conditions for Rhodium Catalyzed Carbamate Transfer to Sulfoxides. J Org Chem 2022; 87:16115-16126. [PMID: 36379008 PMCID: PMC9724092 DOI: 10.1021/acs.joc.2c02083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Sulfoximines provide aza-analogues of sulfones, with potentially improved properties for medicinal chemistry. The sulfoximine nitrogen also provides an additional vector for the inclusion of other functionality. Here, we report improved conditions for rhodium catalyzed synthesis of sulfoximine (and sulfilimine) carbamates, especially for previously low-yielding carbamates containing π-functionality. Notably we report the preparation of propargyl sulfoximine carbamates to provide an alkyne as a potential click handle. Using Rh2(esp)2 as catalyst and a DOE optimization approach provided considerably increased yields.
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9
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Donnelly K, Baumann M. Continuous Flow Technology as an Enabler for Innovative Transformations Exploiting Carbenes, Nitrenes, and Benzynes. J Org Chem 2022; 87:8279-8288. [PMID: 35700424 PMCID: PMC9251729 DOI: 10.1021/acs.joc.2c00963] [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] [Indexed: 11/30/2022]
Abstract
![]()
Miniaturization offered
by microreactors provides for superb reaction
control as well as excellent heat and mass transfer. By performing
chemical reactions in microreactors or tubular systems under continuous
flow conditions, increased safety can be harnessed which allows exploitation
of these technologies for the generation and immediate consumption
of high-energy intermediates. This Synopsis demonstrates the use of
flow technology to effectively exploit benzynes, carbenes, and nitrenes
in synthetic chemistry programs.
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Affiliation(s)
- Kian Donnelly
- School of Chemistry, Science Centre South, University College Dublin, D04 N2E2 Dublin, Ireland
| | - Marcus Baumann
- School of Chemistry, Science Centre South, University College Dublin, D04 N2E2 Dublin, Ireland
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10
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Han M, Tang Z, Li GX, Wang QW. Electrochemical oxidation chemoselective sulfimidation of thioether with sulfonamide via catalytic iodobenzene. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Lai C, Lebel H. Advances in Stereoselective Iron(II)‐Catalyzed Synthesis of Sulfilimines with
N
‐Mesyloxycarbamates. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Calvine Lai
- Département de Chimie Center for Green Chemistry and Catalysis Université de Montréal C.P. 6128, Succursale Centre-ville Montréal, Québec H3C 3J7 Canada
| | - Hélène Lebel
- Département de Chimie Center for Green Chemistry and Catalysis Université de Montréal C.P. 6128, Succursale Centre-ville Montréal, Québec H3C 3J7 Canada
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12
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Azek E, Lai C, Ernzerhof M, Lebel H. Rhodium-Catalyzed Sulfimidation Reactions: A Computational Study. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Emna Azek
- Département de Chimie and Centre in Green Chemistry and Catalysis (CGCC), Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada
| | - Calvine Lai
- Département de Chimie and Centre in Green Chemistry and Catalysis (CGCC), Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada
| | - Matthias Ernzerhof
- Département de Chimie and Centre in Green Chemistry and Catalysis (CGCC), Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada
| | - Hélène Lebel
- Département de Chimie and Centre in Green Chemistry and Catalysis (CGCC), Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada
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13
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Craven GB, Briggs EL, Zammit CM, McDermott A, Greed S, Affron DP, Leinfellner C, Cudmore HR, Tweedy RR, Luisi R, Bull JA, Armstrong A. Synthesis and Configurational Assignment of Vinyl Sulfoximines and Sulfonimidamides. J Org Chem 2021; 86:7403-7424. [PMID: 34003635 DOI: 10.1021/acs.joc.1c00373] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Vinyl sulfones and sulfonamides are valued for their use as electrophilic warheads in covalent protein inhibitors. Conversely, the S(VI) aza-isosteres thereof, vinyl sulfoximines and sulfonimidamides, are far less studied and have yet to be applied to the field of protein bioconjugation. Herein, we report a range of different synthetic methodologies for constructing vinyl sulfoximine and vinyl sulfonimidamide architectures that allows access to new areas of electrophilic chemical space. We demonstrate how late-stage functionalization can be applied to these motifs to incorporate alkyne tags, generating fully functionalized probes for future chemical biology applications. Finally, we establish a workflow for determining the absolute configuration of enantioenriched vinyl sulfoximines and sulfonimidamides by comparing experimentally and computationally determined electronic circular dichroism spectra, enabling access to configurationally assigned enantiomeric pairs by separation.
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Affiliation(s)
- Gregory B Craven
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K.,The Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, University of Leeds, Leeds LS2 9JT, U.K
| | - Edward L Briggs
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Charlotte M Zammit
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Alexander McDermott
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Stephanie Greed
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Dominic P Affron
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Charlotte Leinfellner
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Hannah R Cudmore
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Ruth R Tweedy
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Renzo Luisi
- Department of Pharmacy-Drug Sciences, University of Bari, "A. Moro" Via E. Orabona 4, Bari 70125, Italy
| | - James A Bull
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
| | - Alan Armstrong
- Molecular Sciences Research Hub, Department of Chemistry, Imperial College London, White City Campus, 80 Wood Lane, London W12 0BZ, U.K
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14
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Andresini M, Spennacchio M, Romanazzi G, Ciriaco F, Clarkson G, Degennaro L, Luisi R. Synthesis of Sulfinamidines and Sulfinimidate Esters by Transfer of Nitrogen to Sulfenamides. Org Lett 2020; 22:7129-7134. [PMID: 32856457 DOI: 10.1021/acs.orglett.0c02471] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work we report a new synthetic tactic for the straightforward preparation of hardly accessible sulfinamidines and sulfinamide esters, by using a simple metal-free protocol. The process is robust and uses readily available sulfenamides as the S-donor and sulfonyloxycarbamates as the N-source. The scope and mechanism have also been investigated.
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Affiliation(s)
- Michael Andresini
- Flow Chemistry and Microreactor Technology FLAME-Lab, Department of Pharmacy - Drug Sciences, University of Bari "A. Moro" Via E. Orabona 4, Bari, I - 70125, Italy
| | - Mauro Spennacchio
- Flow Chemistry and Microreactor Technology FLAME-Lab, Department of Pharmacy - Drug Sciences, University of Bari "A. Moro" Via E. Orabona 4, Bari, I - 70125, Italy
| | | | - Fulvio Ciriaco
- Dipartimento di Chimica, University of Bari "A. Moro" Via E. Orabona 4, Bari, I - 70125, Italy
| | - Guy Clarkson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Leonardo Degennaro
- Flow Chemistry and Microreactor Technology FLAME-Lab, Department of Pharmacy - Drug Sciences, University of Bari "A. Moro" Via E. Orabona 4, Bari, I - 70125, Italy
| | - Renzo Luisi
- Flow Chemistry and Microreactor Technology FLAME-Lab, Department of Pharmacy - Drug Sciences, University of Bari "A. Moro" Via E. Orabona 4, Bari, I - 70125, Italy
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15
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Feng T, Tang Z, Luo X, Mo J. An efficient imidation of thioethers with nitrene in water. Org Biomol Chem 2020; 18:6497-6501. [PMID: 32789387 DOI: 10.1039/d0ob01539c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first imidation of thioethers with free nitrene in water was realized. N-Cbz sulfilimines are formed via imidation of thioethers with free nitrene generated from α elimination of nosyloxycarbamates. In this work, water is successfully applied as solvent for free nitrene, and transition metal catalyst is not needed.
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Affiliation(s)
- Tao Feng
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China.
| | - Zhihui Tang
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China.
| | - Xiaoli Luo
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China.
| | - Junming Mo
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China.
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16
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Wojaczyńska E, Wojaczyński J. Modern Stereoselective Synthesis of Chiral Sulfinyl Compounds. Chem Rev 2020; 120:4578-4611. [PMID: 32347719 PMCID: PMC7588045 DOI: 10.1021/acs.chemrev.0c00002] [Citation(s) in RCA: 116] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Indexed: 12/22/2022]
Abstract
Chiral sulfinyl compounds, sulfoxides, sulfoximines, sulfinamides, and other derivatives, play an important role in asymmetric synthesis as versatile auxiliaries, ligands, and catalysts. They are also recognized as pharmacophores found in already marketed and well-sold drugs (e.g., esomeprazole) and used in drug design. This review is devoted to the modern methods of preparation of sulfinyl derivatives in enantiopure or enantiomerically enriched form. Selected new approaches leading to racemic products for which the asymmetric variant can be developed in the future are mentioned as well.
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Affiliation(s)
- Elżbieta Wojaczyńska
- Faculty
of Chemistry, Wrocław University of
Science and Technology, Wybrzeże Wyspiańskiego
27, 50 370 Wrocław, Poland
| | - Jacek Wojaczyński
- Faculty
of Chemistry, University of Wrocław 14 F. Joliot-Curie St., 50 383 Wrocław, Poland
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17
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Zhang G, Tan H, Chen W, Shen HC, Lu Y, Zheng C, Xu H. Synthesis of NH-Sulfoximines by Using Recyclable Hypervalent Iodine(III) Reagents under Aqueous Micellar Conditions. CHEMSUSCHEM 2020; 13:922-928. [PMID: 31950602 DOI: 10.1002/cssc.201903430] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/17/2020] [Indexed: 05/28/2023]
Abstract
The synthesis of NH-sulfoximines from sulfides has been first developed under mild conditions in an aqueous solution with surfactant TPGS-750-M as the catalyst at room temperature. In this newly developed process, a simple and convenient recycling strategy to regenerate the indispensable hypervalent iodine(III) is used. The resulting 1,2,3-trifluoro-5-iodobezene can be recovered almost quantitively from the mixture by liquid-liquid extraction and then oxidized to give the corresponding iodine(III) species. This optimized procedure is compatible with a broad range of functional groups and can be easily performed on a gram scale, providing a green protocol for the synthesis of sulfoximines.
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Affiliation(s)
- Guocai Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Hongsheng Tan
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Weichun Chen
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Hong C Shen
- Roche Innovation Center Shanghai, Roche Pharma Research and Early Development, 720 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Yue Lu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
| | - Hongxi Xu
- Shuguang Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, P. R. China
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