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Yi Y, Yuan Y, Zhu S, Wang J, Wang Z, Zhang J, Gao G, Sun T. Accessing Furan-Linked Methylene Oxindoles/Benzofurans via Stereoselective Palladium-Catalyzed Domino Cyclization/Cycloisomerization. J Org Chem 2024; 89:12085-12093. [PMID: 39180542 DOI: 10.1021/acs.joc.4c00895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
A palladium-catalyzed domino cyclization/cycloisomerization reaction of alkyne-tethered carbamoyl chlorides with (E)-β-chloroenones is reported. This reaction proceeds via a syn-carbopalladation of the alkyne, followed by a vinyl-PdII-catalyzed cycloisomerization of the (E)-β-chloroenone cascade, which provides an efficient method to synthesize furan-linked methylene oxindoles. The reaction features stereodefined vinyl-PdII species, high to excellent 5-exo/6-endo selectivity, excellent Z/E selectivity, and the sequential formation of three bonds and bis-heterocycles. The strategy for the synthesis of furan-containing benzofurans has also been demonstrated.
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Affiliation(s)
- Yujie Yi
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Ye Yuan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Songsong Zhu
- Hubei Provincial Institute for Food Supervision and Test, Wuhan 430075, China
| | - Jinbei Wang
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Zhaolin Wang
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Jingli Zhang
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Guanbin Gao
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
| | - Taolei Sun
- Hubei Key Laboratory of Nanomedicine for Neurodegenerative Diseases, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
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2
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Dimasi A, Failla M, Montoli A, Citarella A, Ronchi P, Passarella D, Fasano V. First total synthesis of caerulomycin K: a case study on selective, multiple C-H functionalizations of pyridines. RSC Adv 2024; 14:5542-5546. [PMID: 38352680 PMCID: PMC10862659 DOI: 10.1039/d4ra00589a] [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: 01/23/2024] [Accepted: 01/31/2024] [Indexed: 02/16/2024] Open
Abstract
Caerulomycins, natural alkaloids with antimicrobial properties, have been previously synthesized starting with highly pre-functionalized building blocks or requiring many functional group manipulations. In this work, we report the first total synthesis of caerulomycin K, a diversely trifunctionalized pyridine readily assembled in three steps exploiting the recent advancements in the C-H activation of N-heterocycles.
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Affiliation(s)
- Alessandro Dimasi
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
| | - Mattia Failla
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
| | - Arianna Montoli
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
| | - Andrea Citarella
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
| | - Paolo Ronchi
- Medicinal Chemistry and Drug Design Technologies Department, Global Research and Preclinical Development, Chiesi Farmaceutici S.p.A Largo Francesco Belloli 11/a 43126 Parma Italy
| | - Daniele Passarella
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
| | - Valerio Fasano
- Department of Chemistry, Università degli Studi di Milano Via Camillo Golgi, 19 20133 Milano Italy https://www.fasanolab.com
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He T, Liang C, Cheng H, Shi S, Huang S. Cathodically Coupled Electrolysis to Access Biheteroaryls. Org Lett 2024; 26:607-612. [PMID: 38206057 DOI: 10.1021/acs.orglett.3c03859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
An electrochemical approach to biheteroaryls through the coupling of diverse N-heteroarenes with heteroaryl phosphonium salts is reported. The reaction features pH and redox-neutral conditions and excellent regioselectivity, as well as exogenous air or moisture tolerance. Additionally, a one-pot, two-step protocol can be established to realize formal C-H/C-H coupling of heteroarenes, thereby greatly expanding the substrate availability. The utility of this method is demonstrated through late-stage functionalization, the total synthesis of nitraridine, and antifungal activity studies.
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Affiliation(s)
- Tianyu He
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Chaoqiang Liang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Haoyuan Cheng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Shuai Shi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
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Stammers E, Parsons CD, Clayden J, Lennox AJJ. Electrochemical synthesis of biaryls by reductive extrusion from N,N'-diarylureas. Nat Commun 2023; 14:4561. [PMID: 37507363 PMCID: PMC10382484 DOI: 10.1038/s41467-023-40237-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The synthesis of biaryl compounds by the transition-metal free coupling of arenes is an important contemporary challenge, aiming to avoid the toxicity and cost profiles associated with the metal catalysts commonly used in the synthesis of these pharmaceutically relevant motifs. In this paper, we describe an electrochemical approach to the synthesis of biaryls in which aniline derivatives are coupled through the formation and reduction of a temporary urea linkage. The conformational alignment of the arenes in the N,N'-diaryl urea intermediates promotes C-C bond formation following single-electron reduction. Our optimized conditions are suitable for the synthesis of a variety of biaryls, including sterically hindered examples carrying ortho-substituents, representing complementary reactivity to most metal catalysed methods.
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Affiliation(s)
- Ellie Stammers
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | - Chris D Parsons
- Early Chemical Development, Pharmaceutical Sciences, R&D, AstraZeneca, Macclesfield, SK10 2NA, UK
| | - Jonathan Clayden
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
| | - Alastair J J Lennox
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK.
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Hallen L, Horan AM, Twamley B, McGarrigle EM, Draper SM. Accessing unsymmetrical Ru(II) bipyridine complexes: a versatile synthetic mechanism for fine tuning photophysical properties. Chem Commun (Camb) 2023; 59:330-333. [PMID: 36511718 DOI: 10.1039/d2cc04910d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Three novel unsymmetrical Ru(II) bipyridine complexes were generated via a convenient, modular, convergent synthetic route. An investigation of their photophysical properties revealed solvent-dependent excited state behaviour including altered absorption and emission wavelengths, emission lifetimes and quantum yields of phosphorescence.
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Affiliation(s)
- Lukas Hallen
- School of Chemistry, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland.
| | - Alexandra M Horan
- SSPC, the SFI Research Centre for Pharmaceuticals, Centre for Synthesis & Chemical Biology, UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland.
| | - Eoghan M McGarrigle
- SSPC, the SFI Research Centre for Pharmaceuticals, Centre for Synthesis & Chemical Biology, UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Sylvia M Draper
- School of Chemistry, Trinity College Dublin, the University of Dublin, Dublin 2, Ireland. .,AMBER (Advanced Materials and Bioengineering Research) Centre, Trinity College Dublin, Dublin 2, Ireland
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Lin ZH, Yao YF, Zhang CP. Deuteration of Arylthianthren-5-ium Salts in CD 3OD. Org Lett 2022; 24:8417-8422. [DOI: 10.1021/acs.orglett.2c03541] [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]
Affiliation(s)
- Zeng-Hui Lin
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
| | - Yu-Fei Yao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
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shao X, Liu Y, Xing S, Zhang J, Liu W, Xu Y, Zhang Y, Yang KF, Yang L, Jiang K. Construction of Diverse C–S/C-Se Bonds via Nickel Catalyzed Reductive Coupling Employing Thiosulfonates and A Selennofonate Under Mild Conditions. Org Chem Front 2022. [DOI: 10.1039/d1qo01873f] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nickel-catalyzed reductive cross coupling between organic iodides and thiosulfonates and a selennofonate under mild conditions is disclosed. This pracitical method provides facile access to a series of unsymmetrical thioethers...
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Tian ZY, Zhang CP. Visible-Light-Initiated Catalyst-Free Trifluoromethylselenolation of Arylsulfonium Salts with [Me4N][SeCF3]. Org Chem Front 2022. [DOI: 10.1039/d2qo00235c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox potential gap between arylsulfonium salt and [Me4N][SeCF3] has been clearly disclosed by CV measurements. Construction of carbon-selenium bond by overcoming this gap without using catalysts and additives is...
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