1
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Periasamy K, Gordeeva S, Bolm C. Syntheses of Sulfilimines by Iron-Catalyzed Iminations of Sulfides with 2,2,2-Trichloroethyl Sulfamate. J Org Chem 2024; 89:9705-9709. [PMID: 38870476 DOI: 10.1021/acs.joc.4c01250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
N-protected sulfilimines are prepared by imination of sulfides with a combination of 2,2,2-trichloroethyl sulfamate (H2NTces), (diacetoxyiodo)benzene (PIDA), and a catalytic amount of iron triflate. The reaction proceeds at room temperature, and after only 3 h a wide range of acyclic and cyclic NTces-sulfilimines with various functional groups and (hetero)aryl substituents can be obtained. By subsequent oxidation followed by deprotection, the products are converted into NH-sulfoximines.
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Affiliation(s)
- Kiruthika Periasamy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Sofya Gordeeva
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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2
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Arichi N, Amano T, Wu S, Inuki S, Ohno H. Synthesis of Sulfilimines via Visible-Light-Mediated Triplet Energy Transfer to Sulfonyl Azides. Chemistry 2024:e202401842. [PMID: 38923056 DOI: 10.1002/chem.202401842] [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: 05/30/2024] [Revised: 06/21/2024] [Accepted: 06/23/2024] [Indexed: 06/28/2024]
Abstract
Sulfilimines and their derivatives have garnered considerable interest in both synthetic and medicinal chemistry. Photochemical nitrene transfer to sulfides is known as a conventional synthetic approach to sulfilimines. However, the existing methods have a limited substrate scope stemming from the incompatibility of singlet nitrene intermediates with nucleophilic functional groups. Herein, we report the synthesis of N-sulfonyl sulfilimines via visible-light-mediated energy transfer to sulfonyl azides, uncovering the previously overlooked reactivity of triplet nitrenes with sulfides. This reaction features broad functional group tolerance, water compatibility, and amenability to the late-stage functionalization of drugs. Thus, this work represents an important example of energy transfer chemistry that overcomes challenges in traditional synthetic methods.
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Affiliation(s)
- Norihito Arichi
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Tsuyoshi Amano
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shuhan Wu
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Shinsuke Inuki
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Hiroaki Ohno
- Graduate School of Pharmaceutical Sciences, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
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3
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Yang X, Zhang B, Ruan J, Duanmu K, Chen W. Palladium-Catalyzed Allylation of Endocyclic 1-Azaallyl Anions. J Org Chem 2024; 89:8896-8905. [PMID: 38856706 DOI: 10.1021/acs.joc.4c00743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Endocyclic 1-azaallyl anions engage allyl acetates in a palladium-catalyzed allylation followed by reduction to give unprotected 2-(hetero)aryl-3-allylpiperidines and 2-allyl-3-arylmorpholines, products not easily accessible by other means. The allyl group is then readily transformed into a variety of functional groups. Preliminary studies on the asymmetric variant of the reaction using an enantiomerically pure BI-DIME-type ligand provide the product with moderate enantioselectivity. Computational studies suggest that energy barriers of inner-sphere reductive elimination and outer-sphere nucleophilic substitution are almost the same, which makes both of them possible reaction pathways. In addition, the inner-sphere mechanism displays an enantiodiscriminating C-C bond forming step, while the outer-sphere mechanism is much less selective, which combined to give the asymmetric variant of the reaction moderate enantioselectivity.
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Affiliation(s)
- Xiaoyu Yang
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai 200092, P. R. China
| | - Biao Zhang
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai 200092, P. R. China
| | - Junhao Ruan
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai 200092, P. R. China
| | - Kaining Duanmu
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai 200092, P. R. China
| | - Weijie Chen
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai 200092, P. R. China
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4
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Chu D, Zoll AJ, Ellman JA. Copper-Catalyzed Three-Component Synthesis of Highly Substituted Morpholines. Org Lett 2024; 26:4803-4807. [PMID: 38810982 PMCID: PMC11195447 DOI: 10.1021/acs.orglett.4c01634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Unprotected, highly substituted morpholines were obtained through a copper-catalyzed three-component reaction utilizing amino alcohols, aldehydes, and diazomalonates. The transformation was effective for diversely substituted aldehydes and for a broad range of readily available vicinal amino alcohols, including those derived from glycine, α-substituted, and α,α-disubstituted amino acids. Epimerization of morpholines using light-mediated stereochemical editing was demonstrated, and the unprotected morpholine products were readily elaborated through efficient transformations.
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Affiliation(s)
- Duc Chu
- Department of Chemistry, Yale University, New Haven, Connecticut 04720, United States
| | - Adam J Zoll
- Department of Chemistry, Yale University, New Haven, Connecticut 04720, United States
| | - Jonathan A Ellman
- Department of Chemistry, Yale University, New Haven, Connecticut 04720, United States
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5
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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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6
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Zhang Y, Chen SS, Li KD, Huang HM. Cyclic Amine Synthesis via Catalytic Radical-Polar Crossover Cycloadditions. Angew Chem Int Ed Engl 2024; 63:e202401671. [PMID: 38418423 DOI: 10.1002/anie.202401671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/01/2024]
Abstract
The rapid assembly of valuable cyclic amine architectures in a single step from simple precursors has been recognized as an ideal platform in term of efficiency and sustainability. Although a vast number of studies regarding cyclic amine synthesis has been reported, new synthetic disconnection approaches are still high in demand. Herein, we report a catalytic radical-polar crossover cycloaddition to cyclic amine synthesis triggered from primary sulfonamide under photoredox condition. This newly developed disconnection, comparable to established synthetic approaches, will allow to construct β, β-disubstituted cyclic amine and β-monosubstituted cyclic amine derivatives efficiently. This study highlights the unique utility of primary sulfonamide as a bifunctional reagent, which acts as a radical precursor and a nucleophile. The open-shell methodology demonstrates broad tolerance to various functional groups, drug derivatives and natural products in an economically and sustainable fashion.
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Affiliation(s)
- Ying Zhang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Shu-Sheng Chen
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Kai-Dian Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
| | - Huan-Ming Huang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, 201210, Shanghai, China
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7
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Chen W, Che Y, Xia J, Zheng L, Lv H, Zhang J, Liang HW, Meng X, Ma D, Song W, Wu X, Cao C. Metal-Sulfur Interfaces as the Primary Active Sites for Catalytic Hydrogenations. J Am Chem Soc 2024. [PMID: 38592685 DOI: 10.1021/jacs.4c02692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
The determination of catalytically active sites is crucial for understanding the catalytic mechanism and providing guidelines for the design of more efficient catalysts. However, the complex structure of supported metal nanocatalysts (e.g., support, metal surface, and metal-support interface) still presents a big challenge. In particular, many studies have demonstrated that metal-support interfaces could also act as the primary active sites in catalytic reactions, which is well elucidated in oxide-supported metal nanocatalysts but is rarely reported in carbon-supported metal nanocatalysts. Here, we fill the above gap and demonstrate that metal-sulfur interfaces in sulfur-doped carbon-supported metal nanocatalysts are the primary active sites for several catalytic hydrogenation reactions. A series of metal nanocatalysts with similar sizes but different amounts of metal-sulfur interfaces were first constructed and characterized. Taking Ir for quinoline hydrogenation as an example, it was found that their catalytic activities were proportional to the amount of the Ir-S interface. Further experiments and density functional theory (DFT) calculations suggested that the adsorption and activation of quinoline occurred on the Ir atoms at the Ir-S interface. Similar phenomena were found in p-chloronitrobenzene hydrogenation over the Pt-S interface and benzoic acid hydrogenation over the Ru-S interface. All of these findings verify the predominant activity of metal-sulfur interfaces for catalytic hydrogenation reactions and contribute to the comprehensive understanding of metal-support interfaces in supported nanocatalysts.
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Affiliation(s)
- Weiming Chen
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yixuan Che
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei ,Anhui 230026, P. R. China
| | - Jing Xia
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haifeng Lv
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei ,Anhui 230026, P. R. China
| | - Jie Zhang
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Hai-Wei Liang
- Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Xiangmin Meng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, New Cornerstone Science Laboratory, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, P. R. China
| | - Weiguo Song
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiaojun Wu
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei ,Anhui 230026, P. R. China
- Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, CAS Key Laboratory of Materials for Energy Conversion, CAS Center for Excellence in Nanoscience, and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Changyan Cao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100190, P. R. China
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8
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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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9
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Chhikara A, Kaur N, Wolke EB, Boes EA, Nguyen AM, Ariyarathna JP, Baskaran P, Villa CE, Pham AH, Kremenets VJ, Kutcher SR, Truong JT, Li W. Olefin Difunctionalization for the Synthesis of Tetrahydroisoquinoline, Morpholine, Piperazine, and Azepane. Org Lett 2024; 26:84-88. [PMID: 38171009 DOI: 10.1021/acs.orglett.3c03690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
This report outlines a versatile strategy for synthesizing a diverse array of N-heterocycles. By the utilization of common olefins, this simple protocol facilitates their coupling with various bifunctional reagents. Furthermore, it can be integrated with C-H amination techniques to directly produce N-heterocycles in a multicomponent cascade coupling process. The unique bond disconnection logic employed in this process underscores its efficiency in achieving rapid simplification through cascade couplings.
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Affiliation(s)
- Akanksha Chhikara
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Navdeep Kaur
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Ernest B Wolke
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Emily A Boes
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Alex M Nguyen
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Jeewani P Ariyarathna
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Prabagar Baskaran
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Chloe E Villa
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Anthony H Pham
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Victoria J Kremenets
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Sydney R Kutcher
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Jonathon T Truong
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Wei Li
- Department of Chemistry and Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
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10
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Wang L, Shi M, Chen X, Su N, Luo W, Zhang X. Generation of Aromatic N-Heterocyclic Radicals for Functionalization of Unactivated Alkenes. Angew Chem Int Ed Engl 2023; 62:e202314312. [PMID: 37946626 DOI: 10.1002/anie.202314312] [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: 09/24/2023] [Revised: 10/30/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
Nitrogen-centered radicals (NCRs) have been widely recognized as versatile synthetic intermediates for the construction of nitrogen containing molecules of high value. As such, there has been a long-standing interest in the field of organic synthesis to develop novel nitrogen-based radicals and explore their inherent reactivity. In this study, we present the generation of aromatic N-heterocyclic radicals and their application in a novel and diverse functionalization of unactivated alkenes. Bench-stable aromatic N-heterocyclic pyridinium salts were employed as crucial NCR precursors, which enabled the efficient conversion of various unactivated alkenes into medicinally relevant alkylated N-heterocyclic amines. This approach offers an unexplored retrosynthetic disconnection for the synthesis of related molecules that commonly possess therapeutic value. Furthermore, this platform can be extended to the synthesis of densely functionalized heterocyclic amines by utilizing disulfides and diethyl bromomalonate as radical quenchers. Mechanistic investigations indicate an energy transfer (EnT) pathway involving the formation of a transient aromatic N-heterocyclic radical, radical addition to unactivated alkenes, and subsequent generation of the amination product through either hydrogen atom transfer (HAT) or radical addition processes.
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Affiliation(s)
- Lu Wang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Minxu Shi
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Xiaoping Chen
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Nicholas Su
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Weili Luo
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
| | - Xiaheng Zhang
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China
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11
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Götz J, Jackl MK, Jindakun C, Marziale AN, André J, Gosling DJ, Springer C, Palmieri M, Reck M, Luneau A, Brocklehurst CE, Bode JW. High-throughput synthesis provides data for predicting molecular properties and reaction success. SCIENCE ADVANCES 2023; 9:eadj2314. [PMID: 37889964 PMCID: PMC10610918 DOI: 10.1126/sciadv.adj2314] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
The generation of attractive scaffolds for drug discovery efforts requires the expeditious synthesis of diverse analogues from readily available building blocks. This endeavor necessitates a trade-off between diversity and ease of access and is further complicated by uncertainty about the synthesizability and pharmacokinetic properties of the resulting compounds. Here, we document a platform that leverages photocatalytic N-heterocycle synthesis, high-throughput experimentation, automated purification, and physicochemical assays on 1152 discrete reactions. Together, the data generated allow rational predictions of the synthesizability of stereochemically diverse C-substituted N-saturated heterocycles with deep learning and reveal unexpected trends on the relationship between structure and properties. This study exemplifies how organic chemists can exploit state-of-the-art technologies to markedly increase throughput and confidence in the preparation of drug-like molecules.
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Affiliation(s)
- Julian Götz
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Moritz K. Jackl
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Chalupat Jindakun
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Alexander N. Marziale
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Jérôme André
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Daniel J. Gosling
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Clayton Springer
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, Cambridge, MA 02139, USA
| | - Marco Palmieri
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Marcel Reck
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Alexandre Luneau
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Cara E. Brocklehurst
- Global Discovery Chemistry, Novartis Institutes for Biomedical Research, Novartis Pharma AG, 4056 Basel, Switzerland
| | - Jeffrey W. Bode
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
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12
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Dey J, Banerjee N, Daw S, Guin J. Photochemical Oximesulfonylation of Alkenes Using Sulfonyl-Oxime-Ethers as Bifunctional Reagents. Angew Chem Int Ed Engl 2023; 62:e202312384. [PMID: 37653722 DOI: 10.1002/anie.202312384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/02/2023]
Abstract
Utilization of oxime ethers as bifunctional reagents remains unknown. Herein, we present a mechanistically distinct strategy that enables oximesulfonylation of olefins using sulfonyl-oxime-ethers as bifunctional reagents under metal-free photochemical conditions. Via concomitant C-S and C-C bond formation, the process permits incorporation of oxime and sulfonyl groups into olefins in a complete atom-economic fashion, providing rapid access to multi-functionalized β-sulfonyl oxime ethers with good yields and stereoselectivity. The method is amenable to functionalization of complex bioactive molecules and is shown to be scalable. A radical chain mechanism initiated via photochemical Hydrogen Atom Transfer (HAT) mediated N-O bond cleavage is suggested for the process, based on our results on mechanistic investigations.
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Affiliation(s)
- Jayanta Dey
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Nayan Banerjee
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Swikriti Daw
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Joyram Guin
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
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Ariyarathna JP, Baskaran P, Chhikara A, Kaur N, Nguyen AM, Premathilaka SM, Huynh MM, Truong JT, Li W. Tunable [3+2] and [4+2] annulations for pyrrolidine and piperidine synthesis. Chem Commun (Camb) 2023; 59:6418-6421. [PMID: 37161704 PMCID: PMC10297810 DOI: 10.1039/d3cc01400b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
N-heterocycles are privileged pharmaceutical scaffolds in drug discovery and development. We disclose here divergent intermolecular coupling strategies that can access diverse N-heterocycles directly from olefins. The radical-to-polar mechanistic switching is key for the divergent cyclization processes. These distinctive annulations result in the coupling of alkenes with simple bifunctional reagents for divergent N-heterocycle syntheses.
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Affiliation(s)
- Jeewani P Ariyarathna
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Prabagar Baskaran
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Akanksha Chhikara
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Navdeep Kaur
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Alex M Nguyen
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Shashini M Premathilaka
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Michelle M Huynh
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Jonathon T Truong
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
| | - Wei Li
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, Ohio 43606, USA.
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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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15
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Synthetic utility of styrenes in the construction of diverse heterocycles via annulation/cycloaddition. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Murray PRD, Leibler INM, Hell SM, Villalona E, Doyle AG, Knowles RR. Radical Redox Annulations: A General Light-Driven Method for the Synthesis of Saturated Heterocycles. ACS Catal 2022; 12:13732-13740. [DOI: 10.1021/acscatal.2c04316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/14/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Philip R. D. Murray
- Department of Chemistry, Princeton University, Princeton, New Jersey08544, United States
| | | | - Sandrine M. Hell
- Department of Chemistry, Princeton University, Princeton, New Jersey08544, United States
| | - Eris Villalona
- Department of Chemistry, Princeton University, Princeton, New Jersey08544, United States
| | - Abigail G. Doyle
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California90095, United States
| | - Robert R. Knowles
- Department of Chemistry, Princeton University, Princeton, New Jersey08544, United States
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17
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Radical ring formation. Nat Chem 2022; 14:850-852. [PMID: 35879441 DOI: 10.1038/s41557-022-01006-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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