1
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Qi W, Gu S, Xie LG. Reductive Radical-Polar Crossover Enabled Carboxylative Alkylation of Aryl Thianthrenium Salts with CO 2 and Styrenes. Org Lett 2024; 26:728-733. [PMID: 38214477 DOI: 10.1021/acs.orglett.3c04183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Carboxylic functionalities are among the pivotal groups in bioactive molecules and in the synthesis of new lead compounds because of their unique character in the formation of hydrogen bonds and the possibility of constructing molecular complexes via amide couplings. We adopt the reductive radical-polar crossover strategy to introduce carboxyalkyl groups into arenes with styrenes and CO2 via thianthrenium salts. This protocol exhibits excellent potential as a straightforward and modular platform for site-selective carboxylative derivation of bioactive molecules.
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Affiliation(s)
- Weiguan Qi
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shiyu Gu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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2
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Yang Z, Liu J, Xie LG. 1,2-Fluorosulfenylation of unactivated alkenes with thiols and a fluoride source promoted by bromodimethylsulfonium bromide. Chem Commun (Camb) 2023; 59:14153-14156. [PMID: 37955272 DOI: 10.1039/d3cc05045a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
A practical method that enables the fluorosulfenylation of unactivated alkenes processed directly with thiols and fluoride salts is presented. Good to excellent efficiencies and functional group tolerance are observed for both alkene substrates and thiols. The procedure also allows the use of gaseous ethylene as a two-carbon building block for β-fluoro thioether products.
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Affiliation(s)
- Zihui Yang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Jia Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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3
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Tang M, Wang Y, Huang S, Xie LG. Synthesis of Aryl Thioalkynes Enabled by Electrophilic Sulfenylation of Alkynes and the Following Elimination. J Org Chem 2023; 88:15466-15472. [PMID: 37861448 DOI: 10.1021/acs.joc.3c01592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
An unexpected deprotonative process of thiirenium ions is presented, which provides a new synthesis of aryl thioalkynes directly from terminal alkynes via the electrophilic activation of the carbon-carbon triple bonds. The conditions are well compatible with various functional-group-substituted aryl alkynes. The direct elimination from the thiirenium ion intermediate, or its tautomer, benzyl vinyl carbocation, is supported by control experiments and labeling reaction.
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Affiliation(s)
- Meizhong Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ye Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lan-Gui Xie
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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4
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Huang L, Zhang J, Wei B, Chen S, Zhu S, Qi W, Pei X, Li L, Liu W, Wang Y, Xu X, Xie LG, Chen L. Small-molecule MHC-II inducers promote immune detection and anti-cancer immunity via editing cancer metabolism. Cell Chem Biol 2023; 30:1076-1089.e11. [PMID: 37236192 DOI: 10.1016/j.chembiol.2023.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 03/01/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023]
Abstract
Lack of MHC-II is emerging as a causal factor in cancer immune evasion, and the development of small-molecule MHC-II inducers is an unmet clinical need. Here, we identified three MHC-II inducers, including pristane and its two superior derivatives, that potently induce MHC-II expression in breast cancer cells and effectively inhibit the development of breast cancer. Our data suggest that MHC-II is central in promoting the immune detection of cancer to increase the tumor infiltration of T cells and enhance anti-cancer immunity. By discovering the malonyl/acetyltransferase (MAT) domain in fatty acid synthase (FASN) as the direct binding target of MHC-II inducers, we demonstrate that evasion of immune detection and cancer metabolic reprogramming are directly linked by fatty acid-mediated MHC-II silencing. Collectively, we identified three MHC-II inducers and illustrated that lack of MHC-II caused by hyper-activated fatty acid synthesis to limit immune detection is a potentially widespread mechanism underlying the development of cancer.
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Affiliation(s)
- Ling Huang
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Jun Zhang
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Bo Wei
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Shuangyang Chen
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Sitong Zhu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210023, China
| | - Weiguan Qi
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Xiaoying Pei
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Lulu Li
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Weiguang Liu
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Yuzhi Wang
- Department of Biochemistry and Molecular Biology, University of Florida, Gainesville, FL 32610, USA
| | - Xiaojun Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210023, China.
| | - Lan-Gui Xie
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Liming Chen
- Department of Biochemistry, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Cancer Institute, School of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
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5
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Meng SS, Xu M, Guan H, Chen C, Cai P, Dong B, Tan WS, Gu YH, Tang WQ, Xie LG, Yuan S, Han Y, Kong X, Gu ZY. Anisotropic flexibility and rigidification in a TPE-based Zr-MOFs with scu topology. Nat Commun 2023; 14:5347. [PMID: 37660056 PMCID: PMC10475113 DOI: 10.1038/s41467-023-41055-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 08/22/2023] [Indexed: 09/04/2023] Open
Abstract
Tetraphenylethylene (TPE)-based ligands are appealing for constructing metal-organic frameworks (MOFs) with new functions and responsiveness. Here, we report a non-interpenetrated TPE-based scu Zr-MOF with anisotropic flexibility, that is, Zr-TCPE (H4TCPE = 1,1,2,2-tetra(4-carboxylphenyl)ethylene), remaining two anisotropic pockets. The framework flexibility is further anisotropically rigidified by installing linkers individually at specific pockets. By individually installing dicarboxylic acid L1 or L2 at pocket A or B, the framework flexibility along the b-axis or c-axis is rigidified, and the intermolecular or intramolecular motions of organic ligands are restricted, respectively. Synergistically, with dual linker installation, the flexibility is completely rigidified with the restriction of ligand motion, resulting in MOFs with enhanced stability and improved separation ability. Furthermore, in situ observation of the flipping of the phenyl ring and its rigidification process is made by 2H solid-state NMR. The anisotropic rigidification of flexibility in scu Zr-MOFs guides the directional control of ligand motion for designing stimuli-responsive emitting or efficient separation materials.
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Affiliation(s)
- Sha-Sha Meng
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Ming Xu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Hanxi Guan
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
- Institute of Zhejiang University-Quzhou, Quzhou, 324100, China
| | - Cailing Chen
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Peiyu Cai
- Department of Chemistry, Texas A&M University, College Station, TX, 77843-3255, USA
| | - Bo Dong
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wen-Shu Tan
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Yu-Hao Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wen-Qi Tang
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Lan-Gui Xie
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China
| | - Shuai Yuan
- State Key Laboratory of Coordination Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Yu Han
- Advanced Membranes and Porous Materials Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
- Electron Microscopy Center, South China University of Technology, Guangzhou, 510640, China
- School of Emergent Soft Matter, South China University of Technology, Guangzhou, 510640, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Zhi-Yuan Gu
- Jiangsu Key Laboratory of Biofunctional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, China.
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6
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Chen A, Zhao S, Han Y, Zhou Z, Yang B, Xie LG, Walczak MA, Zhu F. Stereoselective alkyl C-glycosylation of glycosyl esters via anomeric C-O bond homolysis: efficient access to C-glycosyl amino acids and C-glycosyl peptides. Chem Sci 2023; 14:7569-7580. [PMID: 37449071 PMCID: PMC10337754 DOI: 10.1039/d3sc01995k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 06/18/2023] [Indexed: 07/18/2023] Open
Abstract
C-Glycosyl peptides possess excellent metabolic stability and therapeutic properties and thus play critical roles in biological studies as well as drug discoveries. However, the limited accessibility of C-glycosyl amino acids has significantly hindered the broader research of their structural features and mode of action. Herein, for the first time we disclose a novel visible-light-driven radical conjugate addition of 1,4-dihydropyridine (DHP)-derived glycosyl esters with dehydroalanine derivatives, generating C-glycosyl amino acids and C-glycosyl peptides in good yields with excellent stereoselectivities. Redox-active glycosyl esters, as readily accessible and bench-stable radical precursors, could be easily converted to glycosyl radicals via anomeric C(sp3)-O bond homolysis under mild conditions. Importantly, the generality and practicality of this transformation were fully demonstrated in >40 examples including 2-dexosugars, oligosaccharides, oligopeptides, and complex drug molecules. Given its mild reaction conditions, robust sugar scope, and high anomeric control and diastereoselectivity, the method presented herein could find widespread utility in the preparation of C(sp3)-linked sugar-based peptidomimetics.
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Affiliation(s)
- Anrong Chen
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Shiyin Zhao
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
- School of Chemistry and Materials Science, Nanjing Normal University Nanjing Jiangsu 210023 P. R. China
| | - Yang Han
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Zhenghong Zhou
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Bo Yang
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Lan-Gui Xie
- School of Chemistry and Materials Science, Nanjing Normal University Nanjing Jiangsu 210023 P. R. China
| | - Maciej A Walczak
- Department of Chemistry, University of Colorado Boulder CO 80309 USA
| | - Feng Zhu
- Frontiers Science Center for Transformative Molecules (FSCTM), Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Department of Chemical Biology, School of Chemistry and Chemical Engineering, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University Shanghai 200240 P. R. China
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7
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Dong B, Chen Y, Xie S, Zhang J, Shen J, Xie LG. Practical synthesis of unsymmetrical disulfides promoted by bromodimethylsulfonium bromide. Org Biomol Chem 2023; 21:930-934. [PMID: 36625377 DOI: 10.1039/d2ob02124b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Oxidative cross-coupling of two thiols is the most direct tool for the synthesis of unsymmetrical disulfides and highly desirable across academia and industry. However, the inevitable formation of significant amounts of the corresponding symmetrical by-products is a major issue. We herein present a method toward the synthesis of unsymmetrical disulfides in which the homo-coupling of the thiols is effectively inhibited by adding the two thiols sequentially, taking advantage of rapid oxidation of the thiol by bromodimethylsulfonium bromide.
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Affiliation(s)
- Bo Dong
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Yifeng Chen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Shubing Xie
- Anhui Changjiang Institute of Metrology, Hefei 230088, China
| | - Jieying Zhang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. .,Jiangsu Engineering Research Center of Interfacial Chemistry, Nanjing University, Nanjing 210023, China.
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China.
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8
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Dong B, Shen J, Xie LG. Recent developments on 1,2-difunctionalization and hydrofunctionalization of unactivated alkenes and alkynes involving C-S bond formation. Org Chem Front 2023. [DOI: 10.1039/d2qo01699k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Alkenes and alkynes are feedstock compounds and key units for many natural products, pharmaceuticals, agrochemicals, and organic functional materials. Hydrofunctionalization and 1,2-difunctionalization of alkenes and alkynes are of the most...
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9
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Tang M, Wei Y, Huang S, Xie LG. Regio- and Stereoselective Synthesis of β-Methylthio Vinyl Triflates. Org Lett 2022; 24:7026-7030. [PMID: 36129306 DOI: 10.1021/acs.orglett.2c02880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vinyl triflates are commonly employed as electrophilic vinyl sources in complex synthesis. The triflation of enolates is commonly required for the preparation of vinyl triflates, generally under strongly basic conditions. Herein, the reaction between alkynes and dimethyl(methylthio)sulfonium trifluoromethanesulfonate is presented, which leads to the development of a facile synthesis of β-methylthio vinyl triflates in a chemo-, regio-, and stereoselective manner under neutral and extremely simple conditions.
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Affiliation(s)
- Meizhong Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yongjiao Wei
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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10
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Wang J, Tang M, Gu W, Huang S, Xie LG. Synthesis of Pyrrole via Formal Cycloaddition of Allyl Ketone and Amine under Metal-Free Conditions. J Org Chem 2022; 87:12482-12490. [PMID: 36053128 DOI: 10.1021/acs.joc.2c01565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new metal-free synthesis of pyrrole from allyl ketone and amine has been established. The reaction proceeds via an thiolative activation of the C-C double bond with dimethyl(methylthio)sulfonium trifluoromethanesulfonate, followed by a nucleophilic ring-opening addition of primary amine to the generated episulfonium intermediate, and then an internal condensation and aromatization. This mild procedure provides a novel strategy to the construction of substituted pyrroles through a formal [4 + 1] cycloaddition reaction.
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Affiliation(s)
- Jinli Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Meizhong Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Weijin Gu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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11
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Wang J, Ma SF, Yun Q, Liu WJ, Zhai HR, Shi HZ, Xie LG, Qian JJ, Zhao CJ, Zhang WN. FOXG1 as a Potential Therapeutic Target for Alzheimer's Disease with a Particular Focus on Cell Cycle Regulation. J Alzheimers Dis 2022; 86:1255-1273. [PMID: 35180113 DOI: 10.3233/jad-215144] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Several recent findings have revealed that targeting of cell cycle reentry and (or) progression may provide an opportunity for the therapeutic intervention of Alzheimer's disease (AD). FOXG1 has been shown to play important roles in pattern formation, cell proliferation, and cell specification. Thus far, the roles of FoxG1 and its involvement in AD are largely unknown. OBJECTIVE Our study aimed to explore the intervention effect of FOXG1 on AD pathology and its potential mechanism with a particular focus on cell cycle regulation. METHODS We investigated the association of Foxg1 gene variants with AD-like behavioral deficits, p21 expression, neuronal apoptosis, and amyloid-β (Aβ) aggregate formation; we further determined whether targeting FOXG1-regulated cell cycle has therapeutic potential in AD. RESULTS Paralleling AD-like behavioral abnormalities, neuronal apoptosis, and Aβ deposits, a significant reduction in the expression of FOXG1 was observed in APP/PS1 mice at 6 months of age. Using the APP/PS1;Foxg1fl/fl-CreAAV mouse line, we found that FOXG1 potentially antagonized cell cycle reentry by negatively regulating the levels of p21-activated kinase (PAK3). By reducing p21cip1-mediated arrest at the G2 stage and regulating cyclin A1- and cyclin B-dependent progression patterns of the cell cycle, FOXG1 blocked neuronal apoptosis and Aβ deposition. CONCLUSION These results indicate that FOXG1 contributes to the regulation of the neuronal cell cycle, thereby affecting brain abnormalities in AD. An elevation of the FOXG1 level, either pharmacologically or through other means, could present a therapeutic strategy for AD.
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Affiliation(s)
- Jia Wang
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China.,School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Si-Fei Ma
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China.,Changzhou Blood Center, Changzhou, Jiangsu Province, PR China
| | - Qi Yun
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China.,Changzhou Children's Hospital, Changzhou, Jiangsu Province, China
| | - Wen-Jun Liu
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Hong-Ru Zhai
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Hou-Zhen Shi
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Lan-Gui Xie
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, Jiangsu Province, China
| | - Jin-Jun Qian
- The Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, China
| | - Chun-Jie Zhao
- Key Laboratory of Developmental Genes and Human Diseases, MOE, School of Medicine, Southeast University, Nanjing, Jiangsu Province, China
| | - Wei-Ning Zhang
- School of Medicine, Jiangsu University, Zhenjiang, Jiangsu Province, China
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12
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Dong B, Huang Y, Zhang X, Shen J, Xie LG. Facile methylthiomethylation of the carboxylic acid with bromodimethylsulfonium bromide. Green Synthesis and Catalysis 2022. [DOI: 10.1016/j.gresc.2022.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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13
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Abstract
Methylthioether is involved in the methylthiotransfer process in organisms, and therefore its functionality is of paramount importance to living organisms. Several methods for the installation of the methylthio group in small molecules have been reported previously; however, procedures starting from unactivated alkenes are rare. Herein, we report a formal hydro/deuteromethylthiolation of alkenes by using dimethyl(methylthio)sulfonium trifluoromethanesulfonate as the stimulator and sodium borohydride/deuteride as the hydrogen/deuterium source. The process represents a mild, transition metal-free and methanethiol-free route towards the synthesis of methylthioethers from unactivated alkenes.
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Affiliation(s)
- Shuangyang Chen
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China.
| | - Jia Wang
- School of Medicine, Jiangsu University, Zhenjiang 212013, P. R. China.
| | - Lan-Gui Xie
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China.
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Tang M, Han S, Huang S, Huang S, Xie LG. Carbosulfenylation of Alkenes with Organozinc Reagents and Dimethyl(methylthio)sulfonium Trifluoromethanesulfonate. Org Lett 2020; 22:9729-9734. [PMID: 33253584 DOI: 10.1021/acs.orglett.0c03810] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The electrophilic alkylthiolation of alkenes, initiated by dimethyl(methylthio)sulfonium salts and the subsequent addition of various heteronucleophilies has been well-established. Regarding the use of carbon nucleophiles, however, only carefully designed sp-type carbon sources have been successfully applied. We herein present our findings on the methylthiolation of alkenes with dimethyl(methylthio)sulfonium trifluoromethanesulfonate, followed by carbon-carbon bond formation in the presence of organozinc reagents, thus achieving a catalyst-free protocol toward to the carbosulfenylation of alkenes.
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Affiliation(s)
- Meizhong Tang
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Shuxiong Han
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Shenglan Huang
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, People's Republic of China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Lan-Gui Xie
- School of Chemistry and Materials Science, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, People's Republic of China
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15
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Abstract
The catalytic reductive transformation of carboxylic esters into α-branched ethers is described. The procedure pivots on the chemoselective iridium-catalyzed hydrosilylation of ester and lactone functionality to afford a silyl acetal intermediate. Upon treatment with a Lewis acid, these hemilabile intermediates dissociate to form reactive oxocarbenium ions, which can be intercepted by allyltributyltin nucleophiles, resulting in the formation of valuable α-branched alkyl-alkyl ether derivatives. This reductive allylation procedure was found to be amenable to a range of carboxylic ester starting materials, and good chemoselectivity for ethyl over tert-butyl esters was demonstrated. Furthermore, downstream synthetic manipulation of α-amino acid-derived products led to the efficient formation of pyrrolidine, piperidine, and azepane frameworks.
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Affiliation(s)
- Lan-Gui Xie
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Jack Rogers
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Ioannis Anastasiou
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Jamie A Leitch
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Darren J Dixon
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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16
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Xie LG, Zhao X, Dou SH, Tang L, Sun HM. A new standard reference film for oxygen gas transmission measurements. R Soc Open Sci 2019; 6:190142. [PMID: 31183150 PMCID: PMC6502387 DOI: 10.1098/rsos.190142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
A novel reference film was characterized to improve the oxygen gas transmission measurement accuracy of plastic materials for pharmaceutical packaging. The material processing, homogeneity, stability, jointly determined value and uncertainty evaluation were discussed. The film is the first reference film characterized by multiple laboratories using both manometric and coulometric methods. The oxygen transmission rate of the reference film was 20.53 with the expanded uncertainty of 1.36. The newly characterized reference film can be used in the calibration and self-calibration of oxygen transmission measurement equipment and analytical method verification to improve the measurement accuracy and achieve traceable data.
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Affiliation(s)
| | | | | | | | - Hui-Min Sun
- The Institute for Packaging Materials and Pharmaceutical Excipients Control, National Institutes for food and drug Control, 2 Tiantan Xi Li, Beijing 100050, People's Republic of China
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17
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Xie LG, Dixon DJ. Tertiary amine synthesis via reductive coupling of amides with Grignard reagents. Chem Sci 2017; 8:7492-7497. [PMID: 29163902 PMCID: PMC5676097 DOI: 10.1039/c7sc03613b] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 09/09/2017] [Indexed: 01/30/2023] Open
Abstract
A new iridium catalyzed reductive coupling reaction of Grignard reagents and tertiary amides affording functionalised tertiary amine products is described.
A new iridium catalyzed reductive coupling reaction of Grignard reagents and tertiary amides affording functionalised tertiary amine products via an efficient and technically-simple one-pot, two-stage experimental protocol, is reported. The reaction – which can be carried out on gram-scale using as little as 1 mol% Vaska's complex [IrCl(CO)(PPh3)2] and TMDS as the terminal reductant for the initial reductive activation step – tolerates a broad range of tertiary amides from (hetero)aromatic to aliphatic (branched, unbranched and formyl) and a wide variety of alkyl (linear, branched), vinyl, alkynyl and (hetero)aryl Grignard reagents. The new methodology has been applied directly to bioactive molecule synthesis and the high chemoselectivity of the reductive coupling of amide has been exploited in late stage functionalization of drug molecules. This reductive functionalisation of tertiary amides provides a new and practical solution to tertiary amine synthesis.
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Affiliation(s)
- Lan-Gui Xie
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , UK .
| | - Darren J Dixon
- Department of Chemistry , Chemistry Research Laboratory , University of Oxford , Mansfield Road , Oxford OX1 3TA , UK .
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18
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Xie LG, Shaaban S, Chen X, Maulide N. Metal-Free Synthesis of Highly Substituted Pyridines by Formal [2+2+2] Cycloaddition under Mild Conditions. Angew Chem Int Ed Engl 2016; 55:12864-7. [DOI: 10.1002/anie.201606604] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 07/22/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Lan-Gui Xie
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Saad Shaaban
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Xiangyu Chen
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Nuno Maulide
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
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Xie LG, Shaaban S, Chen X, Maulide N. Metal-Free Synthesis of Highly Substituted Pyridines by Formal [2+2+2] Cycloaddition under Mild Conditions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606604] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Lan-Gui Xie
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Saad Shaaban
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Xiangyu Chen
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
| | - Nuno Maulide
- University of Vienna, Institute of Organic Chemistry; Währinger Strasse 38 1090 Vienna Austria
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20
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Tona V, Ruider SA, Berger M, Shaaban S, Padmanaban M, Xie LG, González L, Maulide N. Divergent ynamide reactivity in the presence of azides - an experimental and computational study. Chem Sci 2016; 7:6032-6040. [PMID: 30034744 PMCID: PMC6022194 DOI: 10.1039/c6sc01945e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 05/24/2016] [Indexed: 12/30/2022] Open
Abstract
An unusually divergent reactivity of ynamides in the presence of azides is reported. This new keteniminium-based methodology, which only requires triflic acid as promoter, facilitates access to β-enaminoamides and biologically important oxazolidine-2,4-diones in a highly selective, divergent manner that is fully controllable by the present azide. A mechanistic rationale for these divergent reaction pathways is delineated and supported by extensive density functional theory analyses, as well as selected mechanistic experiments.
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Affiliation(s)
- Veronica Tona
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Stefan A. Ruider
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
. ,
Institute of Theoretical Chemistry
, Faculty of Chemistry
, University of Vienna
,
Währinger Straße 17
, 1090 Vienna
, Austria
| | - Martin Berger
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Saad Shaaban
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Mohan Padmanaban
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Lan-Gui Xie
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Leticia González
- Institute of Theoretical Chemistry
, Faculty of Chemistry
, University of Vienna
,
Währinger Straße 17
, 1090 Vienna
, Austria
| | - Nuno Maulide
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
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21
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Xie LG, Bagutski V, Audisio D, Wolf LM, Schmidts V, Hofmann K, Wirtz C, Thiel W, Thiele CM, Maulide N. Dynamic behaviour of monohaptoallylpalladium species: internal coordination as a driving force in allylic alkylation chemistry. Chem Sci 2015; 6:5734-5739. [PMID: 29910865 PMCID: PMC5975841 DOI: 10.1039/c5sc01867f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 07/03/2015] [Indexed: 12/12/2022] Open
Abstract
Contemporary catalytic procedures involving alkylpalladium(ii) have enriched the arsenal of synthetic organic chemistry. Those transformations usually rely on internal coordination through "directing groups", carefully designed to maximize catalytic efficiency and regioselectivity. Herein, we report structural and reactivity studies of a series of internally coordinated monohaptoallylpalladium complexes. These species enable the direct spectroscopic observation and theoretical study of π-σ-π interconversion processes. They further display unusual dynamic behavior which should be of direct relevance to chemistries beyond catalytic allylic alkylation.
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Affiliation(s)
- Lan-Gui Xie
- University of Vienna , Institute of Organic Chemistry , Währinger Strasse 38 , 1090 Vienna , Austria .
| | - Viktor Bagutski
- Technische Universität Darmstadt , Clemens Schöpf Institut für Organische Chemie und Biochemie , Alarich-Weiss-Str. 4 , 64287 Darmstadt , Germany .
| | - Davide Audisio
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Larry M Wolf
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Volker Schmidts
- Technische Universität Darmstadt , Clemens Schöpf Institut für Organische Chemie und Biochemie , Alarich-Weiss-Str. 4 , 64287 Darmstadt , Germany .
| | - Kathrin Hofmann
- Technische Universität Darmstadt , Eduard-Zintl-Institute , Alarich-Weiss-Str. 12 , 64287 Darmstadt , Germany
| | - Cornelia Wirtz
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1 , 45470 Mülheim an der Ruhr , Germany
| | - Christina M Thiele
- Technische Universität Darmstadt , Clemens Schöpf Institut für Organische Chemie und Biochemie , Alarich-Weiss-Str. 4 , 64287 Darmstadt , Germany .
| | - Nuno Maulide
- University of Vienna , Institute of Organic Chemistry , Währinger Strasse 38 , 1090 Vienna , Austria .
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Peng B, Huang X, Xie LG, Maulide N. Inside Back Cover: A Brønsted Acid Catalyzed Redox Arylation (Angew. Chem. Int. Ed. 33/2014). Angew Chem Int Ed Engl 2014. [DOI: 10.1002/anie.201406163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Audisio D, Gopakumar G, Xie LG, Alves LG, Wirtz C, Martins AM, Thiel W, Farès C, Maulide N. Palladium-Catalyzed Allylic Substitution at Four-Membered-Ring Systems: Formation of η1-Allyl Complexes and Electrocyclic Ring Opening. Angew Chem Int Ed Engl 2013; 52:6313-6. [DOI: 10.1002/anie.201301034] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Indexed: 11/11/2022]
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26
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Audisio D, Gopakumar G, Xie LG, Alves LG, Wirtz C, Martins AM, Thiel W, Farès C, Maulide N. Palladium-katalysierte allylische Substitution an viergliedrigen Ringen: Bildung von η1-Allylkomplexen und elektrocyclische Ringöffnung. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Xie LG, Sun HM, Jin SH. Screening adulteration of polypropylene bottles with postconsumer recycled plastics for oral drug package by near-infrared spectroscopy. Anal Chim Acta 2011; 706:312-20. [DOI: 10.1016/j.aca.2011.06.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 05/05/2011] [Accepted: 06/04/2011] [Indexed: 11/24/2022]
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Xie LG, Wang ZX. Nickel-Catalyzed Cross-Coupling of Aryltrimethylammonium Iodides with Organozinc Reagents. Angew Chem Int Ed Engl 2011; 50:4901-4. [DOI: 10.1002/anie.201100683] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 03/23/2011] [Indexed: 11/08/2022]
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Xie LG, Wang ZX. Cross-Coupling of Aryl/Alkenyl Ethers with Aryl Grignard Reagents through Nickel-Catalyzed CO Activation. Chemistry 2011; 17:4972-5. [DOI: 10.1002/chem.201003731] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Indexed: 11/10/2022]
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31
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Xie LG, Wang ZX. Nickel-Catalyzed Cross-Coupling of Non-Activated or Functionalized Aryl Halides with Aryl Grignard Reagents. Chemistry 2010; 16:10332-6. [DOI: 10.1002/chem.201001022] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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