1
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Rahman P, Chakraborty N, Patel BK, Rajbongshi KK. Iodine-Promoted Sulfoximidation of Cinnamic Acids via Oxidative C═C Bond Cleavage. J Org Chem 2024. [PMID: 39008892 DOI: 10.1021/acs.joc.4c00585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
An iodine-promoted C═C bond cleavage with concomitant decarboxylation and cross-coupling between cinnamic acids and NH-sulfoximines has been developed. This reaction proceeds via selective C═C bond cleavage, followed by decarboxylation and oxidative sulfoximidation. This metal- and base-free protocol involves dioxygen as the source of oxygen, which is facilitated by tert-butyl hydroperoxide (TBHP) as the oxidant affording N-aroylated sulfoximines with good functional group tolerance and good yields.
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Affiliation(s)
- Parbin Rahman
- Department of Chemistry, Handique Girls' College, Guwahati 781001, Assam, India
| | - Nikita Chakraborty
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Kamal K Rajbongshi
- Department of Chemistry, Handique Girls' College, Guwahati 781001, Assam, India
- Department of Chemistry, Cotton University, Guwahati 781001, Assam, India
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2
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Patel S, Greenwood NS, Mercado BQ, Ellman JA. Rh(II)-Catalyzed Enantioselective S-Alkylation of Sulfenamides with Acceptor-Acceptor Diazo Compounds Enables the Synthesis of Sulfoximines Displaying Diverse Functionality. Org Lett 2024. [PMID: 39004842 DOI: 10.1021/acs.orglett.4c02402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
The Rh(II)-catalyzed enantioselective S-alkylation of sulfenamides with α-amide diazoacetates at 1 mol % catalyst loading to obtain sulfilimines in high yields and enantiomeric ratios of up to 99:1 is reported. The enantioenriched sulfilimine products incorporate versatile amide functionality poised for further elaboration to diverse sulfoximines with multiple stereogenic centers, including by highly diastereoselective sulfilimine and sulfoximine α-alkylation with alkylating agents and epoxides and by interconversion of the amide to N-tert-butanesulfinyl aldimines, followed by diastereoselective additions.
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Affiliation(s)
- Shivani Patel
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Nathaniel S Greenwood
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Brandon Q Mercado
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Jonathan A Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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3
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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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4
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Liu Z, Wu H, Zhang H, Wang F, Liu X, Dong S, Hong X, Feng X. Iron-Catalyzed Asymmetric Imidation of Sulfides via Sterically Biased Nitrene Transfer. J Am Chem Soc 2024; 146:18050-18060. [PMID: 38878303 DOI: 10.1021/jacs.4c04855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Transition-metal-catalyzed enantioselective nitrene transfer to sulfides has emerged as one of the most powerful strategies for rapid construction of enantioenriched sulfimides. However, achieving stereocontrol over highly active earth-abundant transition-metal nitrenoid intermediates remains a formidable challenge compared with precious metals. Herein, we disclose a chiral iron(II)/N,N'-dioxide-catalyzed enantioselective imidation of dialkyl and alkyl aryl sulfides using iminoiodinanes as nitrene precursors. A series of chiral sulfimides were obtained in moderate-to-good yields with high enantioselectivities (56 examples, up to 99% yield, 98:2 e.r.). The utility of this methodology was demonstrated by late-stage modification of complex molecules and synthesis of the chiral insecticide sulfoxaflor and the intermediates of related bioactive compounds. Based on experimental studies and theoretical calculations, a water-bonded high-spin iron nitrenoid species was identified as the key intermediate. The observed stereoselectivity was original from the steric repulsion between the amide unit of the ligand in the chiral cave and the bulky substituent of sulfides. Additionally, dioxazolones proved to be suitable acylnitrene precursors in the presence of an iron(III)/N,N'-dioxide complex, resulting in the formation of enantioselectivity-reversed sulfimides (14 examples, up to 81% yield, 97:3 e.r.).
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Affiliation(s)
- Zhenzhong Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hongli Wu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Helong Zhang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Fang Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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5
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V R PP, Mercy A AH, K N, S R, Nandi GC. 1,2-Difunctionalization of Aryne with Sulfenamide and Organohalide: Mild and Metal-Free Access to S-( o-Halo)aryl Sulfilimine. J Org Chem 2024; 89:9043-9050. [PMID: 38842348 DOI: 10.1021/acs.joc.4c00296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
A mild and metal-free approach has been developed for 1,2-difunctionalization of aryne using sulfenamides as a nucleophile and a halogen source (CX4) as an electrophile to synthesize S-(o-halo)aryl sulfilimines. The late-stage functionalizations of halide handles via Suzuki-Miyaura and Buchwald-Hartwig reactions exhibit the synthetic utilities of the products. The chemoselectivity, regioselectivity, rapidity, and use of economical CCl4 are the advantages of this protocol.
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Affiliation(s)
- Padma Priya V R
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India
| | - Antony Haritha Mercy A
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India
| | - Natarajan K
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India
| | - Ravindra S
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India
| | - Ganesh Chandra Nandi
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu 620015, India
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6
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Sahu S, Emenike B, Beusch CM, Bagchi P, Gordon DE, Raj M. Copper(I)-nitrene platform for chemoproteomic profiling of methionine. Nat Commun 2024; 15:4243. [PMID: 38762540 PMCID: PMC11102537 DOI: 10.1038/s41467-024-48403-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 04/30/2024] [Indexed: 05/20/2024] Open
Abstract
Methionine plays a critical role in various biological and cell regulatory processes, making its chemoproteomic profiling indispensable for exploring its functions and potential in protein therapeutics. Building on the principle of rapid oxidation of methionine, we report Copper(I)-Nitrene Platform for robust, and selective labeling of methionine to generate stable sulfonyl sulfimide conjugates under physiological conditions. We demonstrate the versatility of this platform to label methionine in bioactive peptides, intact proteins (6.5-79.5 kDa), and proteins in complex cell lysate mixtures with varying payloads. We discover ligandable proteins and sites harboring hyperreactive methionine within the human proteome. Furthermore, this has been utilized to profile oxidation-sensitive methionine residues, which might increase our understanding of the protective role of methionine in diseases associated with elevated levels of reactive oxygen species. The Copper(I)-Nitrene Platform allows labeling methionine residues in live cancer cells, observing minimal cytotoxic effects and achieving dose-dependent labeling. Confocal imaging further reveals the spatial distribution of modified proteins within the cell membrane, cytoplasm, and nucleus, underscoring the platform's potential in profiling the cellular interactome.
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Affiliation(s)
- Samrat Sahu
- Department of Chemistry, Emory University, Atlanta, GA, USA
| | | | - Christian Michel Beusch
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Pritha Bagchi
- Department of Biochemistry, Emory University, Atlanta, GA, USA
| | - David Ezra Gordon
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, GA, USA
| | - Monika Raj
- Department of Chemistry, Emory University, Atlanta, GA, USA.
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7
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Sarkar S, Pal S, Santra S, Zyryanov GV, Majee A. Visible-Light-Triggered Synthesis of N-α-Ketoacylated Sulfoximines by Denitrogenative and Oxidative Functionalization of Vinyl Azides. J Org Chem 2024. [PMID: 38757898 DOI: 10.1021/acs.joc.4c00796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We have introduced a sulfoximidation reaction initiated by visible light between α-phenyl vinyl azides and NH-sulfoximines. The cost-effective and readily accessible hypervalent iodine reagent (PIDA) easily promoted the oxidative sulfoximidation process to afford N-α-ketoacylated sulfoximines in good to high yields, involving the formation of two new C-O bonds and one C-N bond. Additionally, the protocol offers noteworthy advantages, including its metal-free and photocatalyst-free reaction and its broad substrate compatibility.
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Affiliation(s)
- Subhankar Sarkar
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, Bolpur 731235, India
| | - Satyajit Pal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, Bolpur 731235, India
| | - Sougata Santra
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
| | - Grigory V Zyryanov
- Department of Organic and Biomolecular Chemistry, Chemical Engineering Institute, Ural Federal University, 19 Mira Street, 620002 Yekaterinburg, Russian Federation
- I. Ya. Postovskiy Institute of Organic Synthesis, Ural Division of the Russian Academy of Sciences, 22 S. Kovalevskoy Street, 620219 Yekaterinburg, Russian Federation
| | - Adinath Majee
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, Bolpur 731235, India
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8
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Han Y, Yuan Y, Qi S, Zhang ZK, Kong X, Yang J, Zhang J. Copper-Catalyzed Sulfur Alkylation of Sulfenamides with N-Sulfonylhydrazones. Org Lett 2024; 26:3906-3910. [PMID: 38683227 DOI: 10.1021/acs.orglett.4c01086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Sulfilimines are valuable compounds in both organic synthesis and pharmaceuticals. In this study, we present a copper-catalyzed sulfur alkylation of sulfenamides with N-sulfonylhydrazones. In contrast to prior findings, hydrazones derived from aldehydes act as donor-type carbene precursors, effectively engaging in coupling with sulfenamides via a copper catalyst, demonstrating exclusive S selectivity. The utility of the protocol was highlighted in the rapid access to a wide range of sulfoximine derivatives.
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Affiliation(s)
- Yidan Han
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, People's Republic of China
| | - Yin Yuan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Shutao Qi
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Zhi-Kun Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
| | - Xiangfei Kong
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, Guangxi 541006, People's Republic of China
| | - Junfeng Yang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
- Zhuhai Fudan Innovation Institute, Zhuhai, Guangdong 519000, People's Republic of China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, People's Republic of China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, People's Republic of China
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, People's Republic of China
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9
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Wu P, Demaerel J, Statham BJ, Bolm C. Azasulfur(iv) derivatives of sulfite and sulfinate esters by formal S-S bond insertion of dichloramines. Chem Sci 2024; 15:5333-5339. [PMID: 38577380 PMCID: PMC10988629 DOI: 10.1039/d4sc00500g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 03/04/2024] [Indexed: 04/06/2024] Open
Abstract
Azasulfur(vi) compounds such as sulfoximines and sulfonimidamides are attractive due to the unique properties of the S[double bond, length as m-dash]N bond. While the synthesis of these carbon-attached sulfonimidoyl derivatives is well-established, the situation is different for their heteroatom-bound counterparts. In this work, we propose azasulfur(iv) esters as platform chemicals that can be derivatized to obtain all types of SVI[double bond, length as m-dash]N functional groups, among these are the poorly accessible, all-heteroatom imidosulfate esters. Using a chloroamination workflow established here, S-S bond-containing structures such as elemental sulfur or diaryl disulfides can be transformed into imidothionyl or sulfinimidoyl chlorides, which are easily esterified or amidated. Thus, chloramines serve as a versatile [N] and [Cl+] source, and by using them in the context reported here, we advance the set of mild synthetic methods as the latest toolbox member to cover even more of the azasulfur(iv) and (vi) chemical space.
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Affiliation(s)
- Peng Wu
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1a 52074 Aachen Germany
| | - Joachim Demaerel
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1a 52074 Aachen Germany
- Dept. of Chemistry, KU Leuven, Sustainable Chemistry for Metals and Molecules Celestijnenlaan 200F Box 2404 3001 Leuven Belgium
| | - Benjamin J Statham
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1a 52074 Aachen Germany
| | - Carsten Bolm
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1a 52074 Aachen Germany
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10
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Gunasekera S, Pryyma A, Jung J, Greenwood R, Patrick BO, Perrin DM. Diphenylphosphinylhydroxylamine (DPPH) Affords Late-Stage S-imination to access free-NH Sulfilimines and Sulfoximines. Angew Chem Int Ed Engl 2024; 63:e202314906. [PMID: 38289976 DOI: 10.1002/anie.202314906] [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: 10/10/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/01/2024]
Abstract
Sulfilimines, as potential aza-isosteres of sulfoxides, are valued as building blocks, auxiliaries, ligands, bioconjugation handles, and as precursors to versatile S(VI) scaffolds including sulfoximines and sulfondiimines. Here, we report a thioether imination methodology that exploits O-(diphenylphosphinyl)hydroxyl amine (DPPH). Under mild, metal-free, and biomolecule-compatible conditions, DPPH enables late-stage S-imination on peptides, natural products, and a clinically trialled drug, and shows both excellent chemoselectivity and broad functional group tolerance. This methodological report is extended to an efficient and high-yielding one-pot reaction for accessing free-NH sulfoximines with diverse substrates including ones of potential clinical importance. In the presence of a rhodium catalyst, sulfoxides are S-iminated in higher yields to afford free-NH sulfoximines. S-imination was validated on an oxidatively delicate amatoxin to give sulfilimine and sulfoximine congeners. Interestingly, these new sulfilimine and sulfoximine-amatoxins show cytotoxicity. This method is further extended to create sulfilimine and sulfoximine-Fulvestrant and buthionine analogues.
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Affiliation(s)
- Shanal Gunasekera
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
| | - Alla Pryyma
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
| | - Jimin Jung
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
| | - Rebekah Greenwood
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
| | - Brian O Patrick
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
| | - David M Perrin
- Chemistry Department, University of British Columbia, 2036 Main Mall, V6T 1Z1, Vancouver, B.C., Canada
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11
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Meeus EJ, Álvarez M, Koelman E, Pérez PJ, Reek JNH, de Bruin B. Copper-Catalyzed Sulfimidation in Aqueous Media: a Fast, Chemoselective and Biomolecule-Compatible Reaction. Chemistry 2024; 30:e202303939. [PMID: 38116945 DOI: 10.1002/chem.202303939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/21/2023]
Abstract
Performing transition metal-catalyzed reactions in cells and living systems has equipped scientists with a toolbox to study biological processes and release drugs on demand. Thus far, an impressive scope of reactions has been performed in these settings, but many are yet to be introduced. Nitrene transfer presents a rather unexplored new-to-nature reaction. The reaction products are frequently encountered motifs in pharmaceuticals, presenting opportunities for the controlled, intracellular synthesis of drugs. Hence, we explored the transition metal-catalyzed sulfimidation reaction in water for future in vivo application. Two Cu(I) complexes containing trispyrazolylborate ligands (Tpx ) were selected, and the catalytic system was evaluated with the aid of three fitness factors. The excellent nitrene transfer reactivity and high chemoselectivity of the catalysts, coupled with good biomolecule compatibility, successfully enabled the sulfimidation of thioethers in aqueous media. We envision that this copper-catalyzed sulfimidation reaction could be an interesting starting point to unlock the potential of nitrene transfer catalysis in vivo.
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Affiliation(s)
- Eva J Meeus
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - María Álvarez
- CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química, Universidad de Huelva, Campus de El Carmen, 21007, Huelva, Spain
| | - Emma Koelman
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Pedro J Pérez
- CIQSO-Centro de Investigación en Química Sostenible and Departamento de Química, Universidad de Huelva, Campus de El Carmen, 21007, Huelva, Spain
| | - Joost N H Reek
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Bas de Bruin
- Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands
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12
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Ren Y, Mo L, Wang Y, Yu L, Yin M, Xiong Z, Teng F, He Y. Modular Synthesis of 1,2-Benzothiazines and 1,2-Benzothiazine 1-Imines via Palladium-Catalyzed C-H/C-C Activation Reactions. J Org Chem 2024; 89:3345-3358. [PMID: 38372225 DOI: 10.1021/acs.joc.3c02799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
In this study, a modular approach toward cyclic sulfoximines and sulfondiimines via palladium-catalyzed intramolecular C-H/C-C activation reactions was reported. Various 1,2-benzothiazines including bicyclic, tricyclic, highly fused ones, ones of the seven-membered ring, along with 1,2-benzothiazine 1-imines were accessed in good yields. KIE experiment demonstrated that the C-H bond cleavage at the position ortho to the sulfoximine group is not the rate-determining step in the coupling reaction.
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Affiliation(s)
- Yifan Ren
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
| | - Lisha Mo
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
| | - Yali Wang
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
| | - Limin Yu
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
| | - Minhai Yin
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
| | - Zhuang Xiong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, P. R. China
| | - Fan Teng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, P. R. China
| | - Yimiao He
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning 530001, P. R. China
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13
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Peng Z, Sun S, Zheng MM, Li Y, Li X, Li S, Xue XS, Dong J, Gao B. Enantioselective sulfur(VI) fluoride exchange reaction of iminosulfur oxydifluorides. Nat Chem 2024; 16:353-362. [PMID: 38355829 DOI: 10.1038/s41557-024-01452-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: 10/08/2022] [Accepted: 01/17/2024] [Indexed: 02/16/2024]
Abstract
Linkage chemistry and functional molecules derived from the stereogenic sulfur(VI) centre have important applications in organic synthesis, bioconjugation, drug discovery, agrochemicals and polymeric materials. However, existing approaches for the preparation of optically active S(VI)-centred compounds heavily rely on synthetic chiral S(IV) pools, and the reported linkers of S(VI) lack stereocontrol. A modular assembly method, involving sequential ligand exchange at the S(VI) centre with precise control of enantioselectivity, is appealing but remains elusive. Here we report an asymmetric three-dimensional sulfur(VI) fluoride exchange (3D-SuFEx) reaction based on thionyl tetrafluoride gas (SOF4). A key step involves the chiral ligand-induced enantioselective defluorinative substitution of iminosulfur oxydifluorides using organolithium reagents. The resulting optically active sulfonimidoyl fluorides allow for further stereospecific fluoride-exchange by various nucleophiles, thereby establishing a modular platform for the asymmetric SuFEx ligation and the divergent synthesis of optically active S(VI) functional molecules.
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Affiliation(s)
- Zhiyuan Peng
- State Key Laboratory of Chemo/BioSensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, China
| | - Shoujun Sun
- Institute of Translational Medicine, National Facility for Translational Medicine (Shanghai), Shanghai Jiao Tong University, Shanghai, China
| | - Meng-Meng Zheng
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - Yangyang Li
- State Key Laboratory of Chemo/BioSensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, China
| | - Xixi Li
- Institute of Translational Medicine, National Facility for Translational Medicine (Shanghai), Shanghai Jiao Tong University, Shanghai, China
| | - Suhua Li
- School of Chemistry, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Song Xue
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China.
| | - Jiajia Dong
- Institute of Translational Medicine, National Facility for Translational Medicine (Shanghai), Shanghai Jiao Tong University, Shanghai, China.
| | - Bing Gao
- State Key Laboratory of Chemo/BioSensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University, Changsha, China.
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14
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Zhong Z, Ma TK, White AJP, Bull JA. Synthesis of Pyrazolesulfoximines Using α-Diazosulfoximines with Alkynes. Org Lett 2024; 26:1178-1183. [PMID: 38306458 PMCID: PMC10877601 DOI: 10.1021/acs.orglett.3c04274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/04/2024]
Abstract
Sulfoximines and pyrazoles are both important motifs in medicinal compounds. Here we report the synthesis and reactivity of sulfoximine diazo compounds as new reagents for the incorporation of sulfoximines. The use of N-silyl sulfoximines enabled formation of monosubstituted diazo compounds. Their application is demonstrated in a [3 + 2] cycloaddition with alkynes to form pyrazole sulfoximines in a new combination of these important chemotypes. Further derivatization of the pyrazole sulfoximines is demonstrated, including silyl deprotection to form unprotected pyrazolesulfoximines.
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Affiliation(s)
- Zhenhao Zhong
- Department of Chemistry, Imperial College London, Molecular Sciences Research
Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - Tsz-Kan Ma
- Department of Chemistry, Imperial College London, Molecular Sciences Research
Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - Andrew J. P. White
- Department of Chemistry, Imperial College London, Molecular Sciences Research
Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
| | - James A. Bull
- Department of Chemistry, Imperial College London, Molecular Sciences Research
Hub, White City Campus, Wood Lane, London W12
0BZ, U.K.
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15
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Zhang M, Liu L, Tan Y, Jing Y, Liu Y, Wang Z, Wang Q. Decarboxylative Radical Sulfilimination via Photoredox, Copper, and Brønsted Base Catalysis. Angew Chem Int Ed Engl 2024; 63:e202318344. [PMID: 38126567 DOI: 10.1002/anie.202318344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/23/2023]
Abstract
Sulfilimines, the aza-variants of sulfoxides, are key structural motifs in natural products, pharmaceuticals, and agrochemicals; and sulfilimine synthesis is therefore important in organic chemistry. However, methods for radical sulfilimination remain elusive, and as a result, the structural diversity of currently available sulfilimines is limited. Herein, we report the first protocol for decarboxylative radical sulfilimination reactions between sulfenamides and N-hydroxyphthalimide esters of primary, secondary, and tertiary alkyl carboxylic acids, which were achieved via a combination of photoredox, copper, and Brønsted base catalysis. This novel protocol provided a wide variety of sulfilimines, in addition to serving as an efficient route for the synthesis of S-alkyl/S-aryl homocysteine sulfilimines and S-(4-methylphenyl) homocysteine sulfoximine. Moreover, it could be used for late-stage introduction of a sulfilimine group into structurally complex molecules, thereby avoiding the need to preserve labile organosulfur moieties through multistep synthetic sequences. A mechanism involving photocatalytic substrate transformation and copper-mediated C(sp3 )-S bond formation is proposed.
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Affiliation(s)
- Mingjun Zhang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Lixia Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yuhao Tan
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yue Jing
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Ziwen Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin, 300071, P. R. China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
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16
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Teng S, Shultz ZP, Shan C, Wojtas L, Lopchuk JM. Asymmetric synthesis of sulfoximines, sulfonimidoyl fluorides and sulfonimidamides enabled by an enantiopure bifunctional S(VI) reagent. Nat Chem 2024; 16:183-192. [PMID: 38238465 PMCID: PMC11000591 DOI: 10.1038/s41557-023-01419-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 12/12/2023] [Indexed: 02/09/2024]
Abstract
An increased interest to expand three-dimensional chemical space for the design of new materials and medicines has created a demand for isosteric replacement groups of commonly used molecular functionality. The structural and chemical properties of chiral S(VI) functional groups provide unique spatial and electronic features compared with their achiral sulfur- and carbon-based counterparts. Manipulation of the S(VI) centre to introduce structural variation with stereochemical control has remained a synthetic challenge. The stability of sulfonimidoyl fluorides and the efficiency of sulfur fluorine exchange chemistry has enabled the development of the enantiopure bifunctional S(VI) transfer reagent t-BuSF to overcome current synthetic limitations. Here, we disclose a reagent platform that serves as a chiral sulfur fluorine exchange template for the rapid asymmetric synthesis of over 70 sulfoximines, sulfonimidoyl fluorides and sulfonimidamides with excellent enantiomeric excess and good overall yields. Furthermore, the practical utility of the bifunctional S(VI) transfer reagent was demonstrated in the syntheses of enantiopure pharmaceutical intermediates and analogues.
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Affiliation(s)
- Shun Teng
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Zachary P Shultz
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Justin M Lopchuk
- Department of Chemistry, University of South Florida, Tampa, FL, USA.
- Drug Discovery Department, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.
- Department of Oncologic Sciences, College of Medicine, University of South Florida, Tampa, FL, USA.
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17
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Bull JA. Sulfur stereochemistry takes centre stage. Nat Chem 2024; 16:152-153. [PMID: 38238466 DOI: 10.1038/s41557-023-01421-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Affiliation(s)
- James A Bull
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, London, UK.
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18
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Werner E, Wiegand M, Moran J, Lebœuf D. Rapid Access to Densely Functionalized Cyclopentenyl Sulfoximines through a Sc-Catalyzed Aza-Piancatelli Reaction. Org Lett 2024. [PMID: 38190622 DOI: 10.1021/acs.orglett.3c04095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Sulfoximines make up a class of compounds of growing interest for crop science and medicinal chemistry, but methods for directly incorporating them into complex molecular scaffolds are lacking. Here we report a scandium-catalyzed variant of the aza-Piancatelli cyclization that can directly incorporate sulfoximines as nucleophiles rather than the classical aniline substrates. Starting from 2-furylcarbinols and sulfoximines, the reaction provides direct access to 4-sulfoximinocyclopentenones, a new scaffold bearing cyclopentenone and sulfoximine motifs, both of interest for bioactive compounds.
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Affiliation(s)
- Emilie Werner
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Milena Wiegand
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | - Joseph Moran
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
- Institut Universitaire de France (IUF), 75005 Paris, France
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - David Lebœuf
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS), CNRS UMR 7006, Université de Strasbourg, 8 Allée Gaspard Monge, 67000 Strasbourg, France
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19
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Chakraborty N, Das B, Barik D, Rajbongshi KK, Patel BK. Base-Promoted Synthesis of S-Arylisothiazolones via Intramolecular Dehydrative Cyclization of α-Keto- N-acylsulfoximines. J Org Chem 2024; 89:778-783. [PMID: 38096382 DOI: 10.1021/acs.joc.3c02269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
A base (Et3N)-promoted synthesis of 1,4-diarylisothiazolones from α-keto-N-acylsulfoximines has been achieved. The reaction proceeds via α-hydrogen abstraction from sulfoximine, followed by an intramolecular nucleophilic attack at the keto carbonyl to form a tert-hydroxy isothiazolone intermediate. The 1,4-substituted isothiazolone is obtained after dehydration via an E1cB path. This one-pot synthesis of isothiazolinones has a broad substrate scope, has a high atom economy, and provides products with good yields. The ΔELUMO-HOMO is calculated using Gaussian 16 at the B3LYP/6-31G(d,p) level of theory.
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Affiliation(s)
- Nikita Chakraborty
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bubul Das
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Dinabandhu Barik
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Kamal K Rajbongshi
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
- Department of Chemistry, Handique Girls' College, Guwahati, Assam 781001, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
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20
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Pan S, Mulks FF, Wu P, Rissanen K, Bolm C. Mechanochemical Iron-Catalyzed Nitrene Transfer Reactions: Direct Synthesis of N-Acyl Sulfonimidamides from Sulfinamides and Dioxazolones. Angew Chem Int Ed Engl 2023:e202316702. [PMID: 38055189 DOI: 10.1002/anie.202316702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/02/2023] [Accepted: 12/05/2023] [Indexed: 12/07/2023]
Abstract
A mechanochemical synthesis of sulfonimidamides by iron(II)-catalyzed exogenous ligand-free N-acyl nitrene transfer to sulfinamides is reported. The one-step method tolerates a wide range of sulfinamides with various substituents under solvent-free ambient conditions. Compared to its solution-phase counterpart, this mechanochemical approach shows better conversion and chemoselectivity. Mechanistic investigations by ESI-MS revealed the generation of crucial nitrene iron intermediates.
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Affiliation(s)
- Shulei Pan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Florian F Mulks
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Peng Wu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box. 35, Survontie 9 B, 40014, Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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21
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Zambri MT, Ho C, Taylor MS. Organoboron/Palladium Cocatalytic Allylation of NH-Sulfoximines Using Allylic Alcohols. Org Lett 2023; 25:8274-8278. [PMID: 37962561 DOI: 10.1021/acs.orglett.3c03323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Synergistic organoboron/palladium cocatalysis enables dehydrative couplings of NH-sulfoximines with allylic alcohols, furnishing the corresponding N-allylated products. The reactions proceed in the absence of a Brønsted base and are tolerant of diverse sulfoximine partners, including functionalized variants. Experimental and computational studies suggest that the sulfoximine reagent is activated by complexation to the boronic acid cocatalyst.
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Affiliation(s)
- Matthew T Zambri
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6, Canada
| | - Celine Ho
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6, Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, 80 St. George St., Toronto, Ontario M5S 3H6, Canada
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22
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Zou X, Wang H, Gao B. Synthesis of Sulfoximines by Copper-Catalyzed Oxidative Coupling of Sulfinamides and Aryl Boronic Acids. Org Lett 2023; 25:7656-7660. [PMID: 37823578 DOI: 10.1021/acs.orglett.3c02970] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
A novel copper-catalyzed cross-coupling reaction of sulfinamides and aryl boronic acids is developed. The reaction is highly chemoselective and stereospecific, which allows mild synthesis of optically pure sulfoximines with broad scope and functional group tolerance. The utility of this method is demonstrated by the asymmetric synthesis of pharmaceutical intermediates.
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Affiliation(s)
- Xi Zou
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Hanbing Wang
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Bing Gao
- State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
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23
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Guo Y, Zhuang Z, Feng X, Ma Q, Li N, Jin C, Yoshida H, Tan J. Selective S-Arylation of Sulfenamides with Arynes: Access to Sulfilimines. Org Lett 2023; 25:7192-7197. [PMID: 37733632 DOI: 10.1021/acs.orglett.3c02785] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Sulfilimines, the aza analogues of sulfoxides, are of increasing interest in medicinal and agrochemical research programs. However, the development of efficient routes for their synthesis has remained relatively unexplored. In this study, we report a transition metal-free, selective S-arylation reaction between sulfenamides and arynes, enabling the facile preparation of structurally diverse sulfilimines under mild and redox-neutral conditions in good yields. The application value of our method was further demonstrated by scale-up synthesis, downstream derivatization, and robustness screen.
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Affiliation(s)
- Yifeng Guo
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Zhe Zhuang
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Xiaoying Feng
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Quanyu Ma
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Ningning Li
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Chaochao Jin
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Hiroto Yoshida
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Jiajing Tan
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
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24
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Koike T. Fluoroalkyl Sulfoximines for Versatile Photocatalytic Radical Fluoroalkylations. CHEM REC 2023; 23:e202300032. [PMID: 36942940 DOI: 10.1002/tcr.202300032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/01/2023] [Indexed: 03/23/2023]
Abstract
Fluoroalkyl sulfoximines, which serve as electron-accepting fluoroalkyl radical sources, are easy-to-handle, solid, and bench-stable chemicals. Fluoroalkyl radicals can be generated from sulfoximine reagents using strong one-electron injectors, such as a highly reducing photoredox catalyst in the excited state. Our group has developed photocatalytic radical di- and mono-fluoromethylation and α-monofluoroalkylation of olefins with the corresponding fluoroalkyl sulfoximines. In this personal account, appropriate combinations of fluoroalkyl sulfoximines and photoredox catalysts, leading to successful radical fluoroalkylation, have been discussed.
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Affiliation(s)
- Takashi Koike
- Department of Applied Chemistry, Faculty of Fundamental Engineering Nippon Institute of Technology E24-315, 4-1 Gakuendai, Miyashiro-Machi, Minamisaitama-gun, Saitama, 345-8501, Japan
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25
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Xie P, Zheng Y, Luo Y, Luo J, Wu L, Cai Z, He L. Synthesis of Sulfilimines via Multicomponent Reaction of Arynes, Sulfamides, and Thiosulfonates. Org Lett 2023; 25:6133-6138. [PMID: 37579216 DOI: 10.1021/acs.orglett.3c02217] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
In this work, a facile and efficient method for the synthesis of sulfilimines through multicomponent reaction of arynes, sulfamides, and thiosulfonates was developed. A variety of structurally diverse substrates and functional groups were very compatible in the reaction, giving the corresponding sulfilimines in good to high yields. This protocol could be conducted on a gram scale, and the product was easily converted to sulfide and sulfoximine. Mechanism studies revealed that sulfenamide generated in situ is the key intermediate for the reaction.
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Affiliation(s)
- Pei Xie
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
| | - Yating Zheng
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
| | - Yuping Luo
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
| | - Jinyun Luo
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
| | - Leifang Wu
- Analysis and Testing Center of Shihezi University, Shihezi University, Shihezi 832000, P. R. China
| | - Zhihua Cai
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
| | - Lin He
- School of Chemistry and Chemical Engineering/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering, Shihezi University, Shihezi 832003, P. R. China
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26
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Park K, Han GU, Yoon S, Lee E, Noh HC, Lee K, Maeng C, Kim D, Lee PH. Iridium(III)-Catalyzed Regioselective B(4)-H Amination of o-Carboranes with Sufilimines. Org Lett 2023; 25:5989-5994. [PMID: 37540091 DOI: 10.1021/acs.orglett.3c02114] [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
Iridium(III)-catalyzed regioselective B(4)-H amination is developed from the reaction of o-carborane acids with sulfilimines without any oxidants under mild conditions, which leads to a wide range of B(4)-H aminated o-carboranes in good yields with a broad substrate scope. Moreover, the selective B(3,6)-diamination reaction of the o-carborane acid was achieved. The present reaction is attractive from a practical point of view because dibenzothiophene is quantitatively recovered and reused.
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Affiliation(s)
- Kyeongna Park
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Gi Uk Han
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sugyeong Yoon
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Eunseo Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Chanyoung Maeng
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
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27
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Abstract
An efficient and metal-free approach for the synthesis of sulfilimines from sulfenamides with aryne and cyclohexyne precursors has been developed. The reaction proceeds through unusual S-C bond formation, which offers a novel and practical entry to access a wide range of sulfilimines in moderate to good yields with excellent chemoselectivity. Moreover, this protocol is amenable to gram-scale synthesis and is applicable to the transformation of the products into useful sulfoximines.
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Affiliation(s)
- Xianda Wu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Minghong Chen
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Fu-Sheng He
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
| | - Jie Wu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University, Jiaojiang 318000, Zhejiang, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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28
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Wu X, Li Y, Chen M, He FS, Wu J. Metal-Free Chemoselective S-Arylation of Sulfenamides To Access Sulfilimines. J Org Chem 2023. [PMID: 37327035 DOI: 10.1021/acs.joc.3c00961] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A novel and efficient S-arylation of sulfenamides with diaryliodonium salts for the synthesis of sulfilimines is developed. The reaction proceeds smoothly under transition-metal-free and air conditions, giving rapid access to sulfilimines in good to excellent yields via selective S-C bond formation. This protocol is scalable and exhibits a broad substrate scope, good functional group tolerance, and excellent chemoselectivity.
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Affiliation(s)
- Xianda Wu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, China
- School of Pharmaceutical and Chemical Engineering and Institute for Advanced Studies, Taizhou University, Taizhou, Zhejiang 3180000, China
| | - Yuqing Li
- School of Pharmaceutical and Chemical Engineering and Institute for Advanced Studies, Taizhou University, Taizhou, Zhejiang 3180000, China
| | - Minghong Chen
- School of Pharmaceutical and Chemical Engineering and Institute for Advanced Studies, Taizhou University, Taizhou, Zhejiang 3180000, China
| | - Fu-Sheng He
- School of Pharmaceutical and Chemical Engineering and Institute for Advanced Studies, Taizhou University, Taizhou, Zhejiang 3180000, China
| | - Jie Wu
- School of Pharmaceutical and Chemical Engineering and Institute for Advanced Studies, Taizhou University, Taizhou, Zhejiang 3180000, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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29
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Champlin AT, Ellman JA. Preparation of Sulfilimines by Sulfur-Alkylation of N-Acyl Sulfenamides with Alkyl Halides. J Org Chem 2023; 88:7607-7614. [PMID: 37221855 PMCID: PMC10257216 DOI: 10.1021/acs.joc.3c00750] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Sulfur alkylation of N-acyl sulfenamides with alkyl halides provides sulfilimines in 47% to 98% yields. A broad scope was established with a variety of aryl and alkyl sulfenamides, including for different N-acyl groups. Alkyl halides with different steric and electronic properties were effective inputs, including methyl, primary, secondary, benzyl, and propargyl halides. A proof-of-concept asymmetric phase-transfer alkylation was also demonstrated. A sulfilimine product was readily converted to an N-acyl and to a free sulfoximine, which represent important motifs in medicinal chemistry.
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Affiliation(s)
- Andrew T. Champlin
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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30
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Zhou Q, Li J, Wang T, Yang X. Base-Promoted S-Arylation of Sulfenamides for the Synthesis of Sulfilimines. Org Lett 2023. [PMID: 37267093 DOI: 10.1021/acs.orglett.3c01436] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Sulfilimines are key intermediates to common motifs in medicines and agrochemicals. Typically, this class of compounds are prepared by imidation of thioethers, transition-metal-catalyzed or base-promoted sulfur alkylation and transition-metal-catalyzed sulfur arylation. Here, we report a practical and efficient base-mediated sulfur arylation reaction for the preparation of sulfilimines. A wide range of N-acyl and N-aryl sulfenamides react with various diaryliodonium salts smoothly to afford the sulfilimines in high yields with excellent chemoselectivities.
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Affiliation(s)
- Qinglong Zhou
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Jiaomeng Li
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Tianyi Wang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Xing Yang
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine (Ministry of Educational of China), Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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31
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Greenwood NS, Ellman JA. Sulfur-Arylation of Sulfenamides via Chan-Lam Coupling with Boronic Acids: Access to High Oxidation State Sulfur Pharmacophores. Org Lett 2023; 25:2830-2834. [PMID: 37042652 PMCID: PMC10163624 DOI: 10.1021/acs.orglett.3c00779] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Sulfur-arylation of sulfenamides is reported. This reaction proceeds via a Chan-Lam-type coupling with commercially abundant boronic acids to give sulfilimines. A broad scope was established with a variety of readily accessible aryl and alkyl sulfenamide and boronic acid inputs. Synthetic utility and functional group compatibility were further demonstrated through the direct late-stage introduction of sulfilimines into approved drugs. Derivatization of the sulfilimine products provided access to medicinally relevant sulfoximines and sulfondiimines.
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Affiliation(s)
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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32
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Zhang X, Wang F, Tan CH. Asymmetric Synthesis of S(IV) and S(VI) Stereogenic Centers. JACS AU 2023; 3:700-714. [PMID: 37006767 PMCID: PMC10052288 DOI: 10.1021/jacsau.2c00626] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/06/2022] [Indexed: 05/22/2023]
Abstract
Sulfur can form diverse S(IV) and S(VI) stereogenic centers, of which some have gained significant attention recently due to their increasing use as pharmacophores in drug discovery programs. The preparation of these sulfur stereogenic centers in their enantiopure form has been challenging, and progress made will be discussed in this Perspective. This Perspective summarizes different strategies, with selected works, for asymmetric synthesis of these moieties, including diastereoselective transformations using chiral auxiliaries, enantiospecific transformations of enantiopure sulfur compounds, and catalytic enantioselective synthesis. We will discuss the advantages and limitations of these strategies and will provide our views on how this field will develop.
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Affiliation(s)
- Xin Zhang
- West China
School of Public Health and West China Fourth Hospital, and State
Key Laboratory of Biotherapy, Sichuan University, 610041 Chengdu, China
| | - Fucheng Wang
- West China
School of Public Health and West China Fourth Hospital, and State
Key Laboratory of Biotherapy, Sichuan University, 610041 Chengdu, China
| | - Choon-Hong Tan
- School
of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
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33
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Liang Q, Wells LA, Han K, Chen S, Kozlowski MC, Jia T. Synthesis of Sulfilimines Enabled by Copper-Catalyzed S-Arylation of Sulfenamides. J Am Chem Soc 2023; 145:6310-6318. [PMID: 36894165 PMCID: PMC10106277 DOI: 10.1021/jacs.2c12947] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Herein, an unprecedented synthetic route to sulfilimines via a copper-catalyzed Chan-Lam-type coupling of sulfenamides is presented. A key to success in this novel transformation is the chemoselective S-arylation of S(II) sulfenamides to form S(IV) sulfilimines, overriding the competitive, and more thermodynamically favored, C-N bond formation that does not require a change in the sulfur oxidation state. Computations reveal that the selectivity arises from a selective transmetallation event where bidentate sulfenamide coordination through the sulfur and oxygen atoms favors the S-arylation pathway. The mild and environmentally benign catalytic conditions enable broad functional group compatibility, allowing a variety of diaryl or alkyl aryl sulfilimines to be efficiently prepared. The Chan-Lam coupling procedure could also tolerate alkenylboronic acids as coupling partners to afford alkenyl aryl sulfilimines, a class of scaffolds that cannot be directly synthesized via conventional imination strategies. The benzoyl-protecting groups could be conveniently removed from the product, which, in turn, could be readily transformed into several S(IV) and S(VI) derivatives.
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Affiliation(s)
- Qingjin Liang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
- Research Center for Chemical Biology and Omics Analysis, Department of Chemistry, and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Blvd., Shenzhen, Guangdong, 518055, P. R. China
| | - Lucille A. Wells
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Kaiming Han
- School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Shufeng Chen
- School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, P. R. China
| | - Marisa C. Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, 231 South 34 Street, Philadelphia, Pennsylvania 19104, United States
| | - Tiezheng Jia
- Research Center for Chemical Biology and Omics Analysis, Department of Chemistry, and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Blvd., Shenzhen, Guangdong, 518055, P. R. China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, P. R. China
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34
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Chen Y, Fang DM, Huang HS, Nie XK, Zhang SQ, Cui X, Tang Z, Li GX. Synthesis of Sulfilimines via Selective S-C Bond Formation in Water. Org Lett 2023; 25:2134-2138. [PMID: 36939573 DOI: 10.1021/acs.orglett.3c00604] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Sulfilimines are valuable compounds both in organic synthesis and in pharmaceuticals. Here we developed a mild and simplified method for preparation of sulfilimines via selective S-C bond formation rather than traditional S-N bond formation. The method is both attractive and useful for the following reasons: it uses a readily available alkylation reagent such alkyl bromide or alkyl iodide, it uses water as solvent, it is easy to perform, and it is convenient for late-stage diversification of drugs.
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Affiliation(s)
- Yue Chen
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China.,University of Chinese Academy of Sciences, Beijing 10049, P.R. China
| | - Dong-Mei Fang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - He-Sen Huang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Xiao-Kang Nie
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Shi-Qi Zhang
- 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
| | - 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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35
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Yang GF, Yuan Y, Tian Y, Zhang SQ, Cui X, Xia B, Li GX, Tang Z. Synthesis of Chiral Sulfonimidoyl Chloride via Desymmetrizing Enantioselective Hydrolysis. J Am Chem Soc 2023; 145:5439-5446. [PMID: 36811577 DOI: 10.1021/jacs.2c13758] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Direct construction of chiral S(VI) from prochiral S(II) is a formidable challenge due to the inevitable formation of stable chiral S(IV). Previous synthetic strategies rely on the conversion of chiral S(IV) or enantioselective desymmetrization of preformed symmetrical S(VI) substrates. Here, we report desymmetrizing enantioselective hydrolysis of in situ-generated symmetric aza-dichlorosulfonium from sulfenamides for the preparation of chiral sulfonimidoyl chlorides, which could be used as a general stable synthon for obtaining a series of chiral S(VI) derivatives.
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Affiliation(s)
- Gao-Feng Yang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Yi Yuan
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
| | - Yin Tian
- State Key Laboratory of Southwestern Chinese Medicine Resources, The Ministry of Education Key Laboratory of Standardization of Chinese Herbal Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Shi-Qi Zhang
- 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
| | - Bing Xia
- 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
| | - Zhuo Tang
- Natural Products Research Center, Chengdu Institution of Biology, Chinese Academy of Science, Chengdu, Sichuan 610041, China
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36
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Chakraborty N, Rajbongshi KK, Dahiya A, Das B, Vaishnani A, Patel BK. NIS-initiated photo-induced oxidative decarboxylative sulfoximidation of cinnamic acids. Chem Commun (Camb) 2023; 59:2779-2782. [PMID: 36786510 DOI: 10.1039/d3cc00142c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
N-Iodosuccinimide catalyzed, visible-light-induced oxidative decarboxylative cross-coupling between cinnamic acids and NH-sulfoximines is presented. This strategy results in the formation of α-keto-N-acyl sulfoximines via the construction of two new CO bonds and one C-N bond. The in situ-generated N-iodosulfoximine serves as the light-absorbing species in the absence of any external photosensitizer. The keto carbonyl and amidic carbonyl oxygen in the resulting product originate from dioxygen and water respectively.
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Affiliation(s)
- Nikita Chakraborty
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Kamal K Rajbongshi
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India. .,Department of Chemistry, Handique Girls' College, Guwahati, 781001, Assam, India
| | - Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Bubul Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Akshar Vaishnani
- Department of Chemistry, REVA University, Bangalore, 560064, Bengaluru, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam 781039, India.
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37
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Klein M, Troglauer DL, Waldvogel SR. Dehydrogenative Imination of Low-Valent Sulfur Compounds-Fast and Scalable Synthesis of Sulfilimines, Sulfinamidines, and Sulfinimidate Esters. JACS AU 2023; 3:575-583. [PMID: 36873686 PMCID: PMC9975850 DOI: 10.1021/jacsau.2c00663] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Herein, we describe an electrochemical pathway for the synthesis of sulfilimines, sulfoximines, sulfinamidines, and sulfinimidate esters from readily available low-valent sulfur compounds and primary amides or their analogues. The combination of solvents and supporting electrolytes together act both as an electrolyte as well as a mediator, leading to efficient use of reactants. Both can be easily recovered, enabling an atom-efficient and sustainable process. A broad scope of sulfilimines, sulfinamidines, and sulfinimidate esters with N-EWGs is accessed in up to excellent yields with broad functional group tolerance. This fast synthesis can be easily scaled up to multigram quantities with high robustness for fluctuation of current densities of up to 3 orders of magnitude. The sulfilimines are converted into the corresponding sulfoximines in an ex-cell process in high to excellent yields using electro-generated peroxodicarbonate as a green oxidizer. Thereby, preparatively valuable NH sulfoximines are accessible.
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38
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Tsuzuki S, Kano T. Asymmetric Synthesis of Chiral Sulfimides through the O-Alkylation of Enantioenriched Sulfinamides and Addition of Carbon Nucleophiles. Angew Chem Int Ed Engl 2023; 62:e202300637. [PMID: 36807500 DOI: 10.1002/anie.202300637] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
Chiral sulfimides, the aza-analogues of sulfoxides, are valuable compounds in organic synthesis and medicinal chemistry. Herein, we report an efficient method for preparing chiral sulfimides from easily available enantioenriched sulfinamides. The key step of this method is a stereospecific oxygen-selective alkylation of enantioenriched sulfinamides, which is accomplished by using isopropyl iodide, K2 CO3 , and DMPU. The resulting chiral sulfinimidate esters are transformed to chiral sulfimides by the nucleophilic addition of the Grignard reagents under simple conditions. This transformation enables access to the enantioenriched diaryl or dialkyl sulfimides bearing two similar carbon substituents, which are difficult to synthesize by previous methods.
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Affiliation(s)
- Saori Tsuzuki
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan.,Department of Chemistry, Graduate School of Science, Kyoto University Sakyo, Kyoto, 606-8502, Japan
| | - Taichi Kano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184-8588, Japan
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39
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Song SY, Zhou X, Ke Z, Xu S. Synthesis of Chiral Sulfoximines via Iridium-Catalyzed Regio- and Enantioselective C-H Borylation: A Remarkable Sidearm Effect of Ligand. Angew Chem Int Ed Engl 2023; 62:e202217130. [PMID: 36511841 DOI: 10.1002/anie.202217130] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/13/2022] [Accepted: 12/13/2022] [Indexed: 12/14/2022]
Abstract
Transition metal-catalyzed enantioselective C-H activation of prochiral sulfoximines for non-annulated products remains a formidable challenge. We herein report iridium-catalyzed enantioselective C-H borylation of N-silyl diaryl sulfoximines using a well-designed chiral bidentate boryl ligand with a bulky side arm. This method is capable of accommodating a broad range of substrates under mild reaction conditions, affording a vast array of chiral sulfoximines with high enantioselectivities. We also demonstrated the synthetic utility on a preparative-scale C-H borylation for diverse downstream transformations, including the synthesis of chiral version of bioactive molecules. Computational studies showed that the bulky side arm of the ligand confers high regio- and enantioselectivity through steric effect.
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Affiliation(s)
- Shu-Yong Song
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Xiaoyu Zhou
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, China
| | - Senmiao Xu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
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40
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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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41
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Kang OY, Kim E, Lee WH, Ryu DH, Lim HJ, Park SJ. N-Cyano sulfilimine functional group as a nonclassical amide bond bioisostere in the design of a potent analogue to anthranilic diamide insecticide. RSC Adv 2023; 13:2004-2009. [PMID: 36712628 PMCID: PMC9832345 DOI: 10.1039/d2ra06988a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/23/2022] [Indexed: 01/13/2023] Open
Abstract
To explore the potential of the N-cyano sulfilimine group as an amide bond isostere, a derivative of the blockbuster anthranilic diamide, chlorantramiliprole, was synthesized and evaluated with regard to its physicochemical properties, permeability, and biological activity. Given the combination of N-cyano sulfilimine chlorantraniliprole 1 and its strong hydrogen bond acceptor character, high permeability, and excellent insecticidal activity, the N-cyano sulfilimine functional group could be considered as an amide bond isostere.
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Affiliation(s)
- On-Yu Kang
- Data Convergence Drug Research Center, Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea+82-42-860-7160+82-42-860-7175,Department of Chemistry, Sungkyunkwan University2066 Seobu-roSuwon 16419Republic of Korea
| | - Eunsil Kim
- Data Convergence Drug Research Center, Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea+82-42-860-7160+82-42-860-7175,Department of Chemistry, Sogang University35 Baekbeom-roSeoul 04107Republic of Korea
| | - Won Hyung Lee
- Central Research Institute, Kyung Nong Co. Ltd34-14 Summeori-gilKyongju 38175Kyongsangbuk–doRepublic of Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University2066 Seobu-roSuwon 16419Republic of Korea
| | - Hwan Jung Lim
- Data Convergence Drug Research Center, Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea+82-42-860-7160+82-42-860-7175,Department of Medicinal Chemistry and Pharmacology, University of Science & Technology217 Gajeong-roDaejeon 34113Republic of Korea
| | - Seong Jun Park
- Data Convergence Drug Research Center, Korea Research Institute of Chemical TechnologyDaejeon 34114Republic of Korea+82-42-860-7160+82-42-860-7175,Department of Medicinal Chemistry and Pharmacology, University of Science & Technology217 Gajeong-roDaejeon 34113Republic of Korea
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42
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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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43
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Synthesis of N-acyl sulfenamides via copper catalysis and their use as S-sulfenylating reagents of thiols. Nat Commun 2022; 13:6445. [PMID: 36307408 PMCID: PMC9616856 DOI: 10.1038/s41467-022-34223-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 10/19/2022] [Indexed: 12/25/2022] Open
Abstract
Sulfur-heteroatom bonds such as S-S and S-N are found in a variety of natural products and often play important roles in biological processes. Despite their widespread applications, the synthesis of sulfenamides, which feature S-N bonds that may be cleaved under mild conditions, remains underdeveloped. Here, we report a method for synthesis of N-acyl sulfenamides via copper-catalyzed nitrene-mediated S-amidation reaction of thiols with dioxazolones. This method is efficient, convenient, and broadly applicable. Moreover, the resulting N-acetyl sulfenamides are highly effective S-sulfenylation reagents for the synthesis of unsymmetrical disulfides under mild conditions. The S-sulfenylation protocol enables facile access to sterically demanding disulfides that are difficult to synthesize by other means.
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44
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Andresini M, Carret S, Degennaro L, Ciriaco F, Poisson J, Luisi R. Multistep Continuous Flow Synthesis of Isolable NH 2 -Sulfinamidines via Nucleophilic Addition to Transient Sulfurdiimide. Chemistry 2022; 28:e202202066. [PMID: 35861934 PMCID: PMC9804385 DOI: 10.1002/chem.202202066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Indexed: 01/05/2023]
Abstract
The growing interest in novel sulfur pharmacophores led to recent advances in the synthesis of some S(IV) and S(VI) motifs. However, preparation and isolation of uncommon primary sulfinamidines, the aza-analogues of sulfinamides, is highly desirable. Here we report a multistep continuous flow synthesis of poorly explored NH2 -sulfinamidines by nucleophilic attack of organometallic reagents to in situ prepared N-(trimethylsilyl)-N-trityl-λ4 -sulfanediimine (Tr-N=S=N-TMS). The transformation can additionally be realized under mild conditions, at room temperature, via a highly chemoselective halogen-lithium exchange of aryl bromides and iodides with n-butyllithium. Moreover, the synthetic potential of the methodology was assessed by exploring further manipulations of the products and accessing novel S(IV) analogues of celecoxib, tasisulam, and relevant sulfinimidoylureas.
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Affiliation(s)
- Michael Andresini
- FLAME-Lab, Flow Chemistry and Microreactor Technology LaboratoryDepartment of Pharmacy – Drug SciencesUniversity of Bari“A. Moro” Via E. Orabona 470125BariItaly,Univ. Grenoble Alpes, CNRS, DCM301 rue de la chimie38000GrenobleFrance
| | - Sébastien Carret
- Univ. Grenoble Alpes, CNRS, DCM301 rue de la chimie38000GrenobleFrance
| | - Leonardo Degennaro
- FLAME-Lab, Flow Chemistry and Microreactor Technology LaboratoryDepartment of Pharmacy – Drug SciencesUniversity of Bari“A. Moro” Via E. Orabona 470125BariItaly
| | - Fulvio Ciriaco
- Department of ChemistryUniversity of Bari“A. Moro” Via E. Orabona 470125BariItaly
| | | | - Renzo Luisi
- FLAME-Lab, Flow Chemistry and Microreactor Technology LaboratoryDepartment of Pharmacy – Drug SciencesUniversity of Bari“A. Moro” Via E. Orabona 470125BariItaly
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45
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Greenwood NS, Champlin AT, Ellman JA. Catalytic Enantioselective Sulfur Alkylation of Sulfenamides for the Asymmetric Synthesis of Sulfoximines. J Am Chem Soc 2022; 144:17808-17814. [PMID: 36154032 PMCID: PMC9650615 DOI: 10.1021/jacs.2c09158] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sulfoximines are increasingly incorporated in agrochemicals and pharmaceuticals, with the two enantiomers of chiral sulfoximines often having profoundly different binding interactions with biomolecules. Therefore, their application to drug discovery and development requires the challenging preparation of single enantiomers rather than racemic mixtures. Here, we report a general and fundamentally new asymmetric synthesis of sulfoximines. The first S-alkylation of sulfenamides, which are readily accessible sulfur compounds with one carbon and one nitrogen substituent, represents the key step. A broad scope for S-alkylation was achieved by rhodium-catalyzed coupling with diazo compounds under mild conditions. When a chiral rhodium catalyst was utilized with loadings as low as 0.1 mol %, the S-alkylation products were obtained in high yields and with enantiomeric ratios up to 98:2 at the newly generated chiral sulfur center. The S-alkylation products were efficiently converted to a variety of sulfoximines with complete retention of stereochemistry. The utility of this approach was further demonstrated by the asymmetric synthesis of a complex sulfoximine agrochemical.
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Affiliation(s)
| | - Andrew T. Champlin
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
| | - Jonathan A. Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
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46
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Wang C, Wang X, Kong D, Truong K, Rissanen K, Bolm C. The Preparation of Diaryl Sulfoxinium Triflates and Their Application in Palladium-Catalyzed Cross-Coupling Reactions. Chem Asian J 2022; 17:e202200828. [PMID: 35947778 PMCID: PMC9804342 DOI: 10.1002/asia.202200828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Indexed: 01/05/2023]
Abstract
Treatment of N-methyl-S,S-diaryl sulfoximines with methyl trifluoromethanesulfonate provides bench-stable sulfoxinium salts in excellent yields. Applying them in Sonogashira-, Heck- and Suzuki-type cross-coupling reactions leads to the corresponding products by sequential C-S bond cleavage and C-C bond formation. Electronic factors induced by substituents on the S-aryl groups govern the coupling efficiency.
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Affiliation(s)
- Chenyang Wang
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Xianliang Wang
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Deshen Kong
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Khai‐Nghi Truong
- University of JyvaskylaDepartment of ChemistryFI-40014JyväskyläFinland
| | - Kari Rissanen
- University of JyvaskylaDepartment of ChemistryFI-40014JyväskyläFinland
| | - Carsten Bolm
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
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47
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Wu P, Demaerel J, Kong D, Ma D, Bolm C. Copper-Catalyzed, Aerobic Synthesis of NH-Sulfonimidamides from Primary Sulfinamides and Secondary Amines. Org Lett 2022; 24:6988-6992. [PMID: 36125127 DOI: 10.1021/acs.orglett.2c02804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
NH-Sulfonimidamides are prepared by copper-catalyzed coupling of primary sulfinamides with secondary amines. Neither a ligand nor an additive is needed, and air is the terminal oxidant. The reactions occur at room temperature, show good functional group tolerance, and lead to products in good yields. A sulfanenitrile is proposed as an intermediate in this oxidative amination.
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Affiliation(s)
- Peng Wu
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Joachim Demaerel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.,Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Box 2404, 3001 Leuven, Belgium
| | - Deshen Kong
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Ding Ma
- 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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48
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Liu J, Jia X, Huang L. Sulfilimines as Transformable and Retainable Directing Groups in Rhodium-Catalyzed ortho-C-H Bond Functionalization. Org Lett 2022; 24:6772-6776. [PMID: 36098745 DOI: 10.1021/acs.orglett.2c02630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Shown herein is the first time that the sulfilimine is utilized as a directing group for Rh(III)-catalyzed C-H activation/annulation with intermolecular and intramolecular alkyne compounds. Sulfilimine serves as a transformable directing group, an internal oxidant, in the annulation with an alkyne moiety via N-S bond cleavage. Notably, the retention of sulfilimine as a directing group is also achieved in the Rh(III)-catalyzed ortho-alkynylation with alkyne bromides.
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Affiliation(s)
- Jiechun Liu
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xiaoyan Jia
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
| | - Liangbin Huang
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China
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49
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Gasser VCM, Makai S, Morandi B. The advent of electrophilic hydroxylamine-derived reagents for the direct preparation of unprotected amines. Chem Commun (Camb) 2022; 58:9991-10003. [PMID: 35993918 PMCID: PMC9453917 DOI: 10.1039/d2cc02431d] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/20/2022] [Indexed: 11/21/2022]
Abstract
Electrophilic aminating reagents have seen a renaissance in recent years as effective nitrogen sources for the synthesis of unprotected amino functionalities. Based on their reactivity, several noble and non-noble transition metal catalysed amination reactions have been developed. These include the aziridination and difunctionalisation of alkenes, the amination of arenes as well as the synthesis of aminated sulfur compounds. In particular, the use of hydroxylamine-derived (N-O) reagents, such as PONT (PivONH3OTf), has enabled the introduction of unprotected amino groups on various different feedstock compounds, such as alkenes, arenes and thiols. This strategy obviates undesired protecting-group manipulations and thus improves step efficiency and atom economy. Overall, this feature article gives a recent update on several reactions that have been unlocked by employing versatile hydroxylamine-derived aminating reagents, which facilitate the generation of unprotected primary, secondary and tertiary amino groups.
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Affiliation(s)
- Valentina C M Gasser
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
| | - Szabolcs Makai
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich, Vladimir-Prelog-Weg 3, HCI, Zürich 8093, Switzerland.
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50
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Li X, Huang J, Xu L, Liu P, Wei Y. Synthesis of β-Arylseleno Sulfoximines: A Metal-Free Three-Component Reaction Mediated by Tetrabutylammonium Tribromide. J Org Chem 2022; 87:10684-10697. [PMID: 35939820 DOI: 10.1021/acs.joc.2c00880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A tetrabutylammonium tribromide-mediated three-component reaction of alkenes, diselenides, and sulfoximines has been established herein, providing direct and metal-free access to diverse β-arylseleno sulfoximine derivatives. This regioselective sulfoximido-selenization protocol proceeds efficiently under mild and ambient conditions with generally good yields. This strategy is featured by step and atom economy, practicability, a broad substrate scope, and gram-scale synthesis.
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Affiliation(s)
- Xiaoman Li
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Jiawei Huang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Ping Liu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
| | - Yu Wei
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi City 832003, Xinjiang, P. R. China
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