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Stadel JT, Back TG. Asymmetric Synthesis with Organoselenium Compounds - The Past Twelve Years. Chemistry 2024; 30:e202304074. [PMID: 38199954 DOI: 10.1002/chem.202304074] [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: 12/06/2023] [Revised: 01/09/2024] [Accepted: 01/10/2024] [Indexed: 01/12/2024]
Abstract
The discovery and synthetic applications of novel organoselenium compounds and their reactions proceeded rapidly during the past fifty years and such processes are now carried out routinely in many laboratories. At the same time, the growing demand for new enantioselective processes provided new challenges. The convergence of selenium chemistry and asymmetric synthesis led to key developments in the 1970s, although the majority of early work was based on stoichiometric processes. More recently, greater emphasis has been placed on greener catalytic variations, along with the discovery of novel reactions and a deeper understanding of their mechanisms. The present review covers the literature in this field from 2010 to early 2023 and encompasses asymmetric reactions mediated by chiral selenium-based reagents, auxiliaries, and especially, catalysts. Protocols based on achiral selenium compounds in conjunction with other species of chiral catalysts, as well as reactions that are controlled by chiral substrates, are also included.
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Affiliation(s)
- Jessica T Stadel
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada, T2N 1N4
| | - Thomas G Back
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada, T2N 1N4
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2
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Chen S, Scholiers V, Zhang M, Zhang J, Zhu J, Prez FED, Pan X. Thermally Responsive Selenide-containing Materials Based on Transalkylation of Selenonium Salts. Angew Chem Int Ed Engl 2023; 62:e202309652. [PMID: 37851486 DOI: 10.1002/anie.202309652] [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: 07/07/2023] [Revised: 10/06/2023] [Accepted: 10/16/2023] [Indexed: 10/19/2023]
Abstract
Covalent adaptable networks (CANs) possess unique properties as a result of their internal dynamic bonds, such as self-healing and reprocessing abilities. In this study, we report a thermally responsive C-Se dynamic covalent chemistry (DCC) that relies on the transalkylation exchange between selenonium salts and selenides, which undergo a fast transalkylation reaction in the absence of any catalyst. Additionally, we demonstrate the presence of a dissociative mechanism in the absence of selenide groups. After incorporation of this DCC into selenide-containing polymer materials, it was observed that the cross-linked networks display varying dynamic exchange rates when using different alkylation reagents, suggesting that the reprocessing capacity of selenide-containing materials can be regulated. Also, by incorporating selenonium salts into polymer materials, we observed that the materials exhibited good healing ability at elevated temperatures as well as excellent solvent resistance at ambient temperature. This novel dynamic covalent chemistry thus provides a straightforward method for the healing and reprocessing of selenide-containing materials.
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Affiliation(s)
- Sisi Chen
- State and Local Joint Engineering Laboratory for Novel Functional Department Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
- Polymer Chemistry Research group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281, S4-bis, 9000, Ghent, Belgium
| | - Vincent Scholiers
- Polymer Chemistry Research group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281, S4-bis, 9000, Ghent, Belgium
| | - Mengyao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Department Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jiandong Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Department Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jian Zhu
- State and Local Joint Engineering Laboratory for Novel Functional Department Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Filip E Du Prez
- Polymer Chemistry Research group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281, S4-bis, 9000, Ghent, Belgium
| | - Xiangqiang Pan
- State and Local Joint Engineering Laboratory for Novel Functional Department Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, 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] [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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Brydon SC, Thomson C, O'Hair RAJ, White JM. Electronic and Steric Effects on the Reactivity of Seleniranium Ions with Alkenes in the Gas Phase. J Org Chem 2023; 88:9629-9644. [PMID: 36705983 DOI: 10.1021/acs.joc.2c02233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Gas phase ion-molecule reactions between seleniranium ions, R-c-SeCH2CH2+, and cis-cyclooctene were used to probe electronic and steric effects of substituents on kinetics and branching ratios. The second-order rate coefficients increased in the order p-OMeC6H4 < C6H5 < p-BrC6H4 < p-CF3C6H4 < m-NO2C6H4, giving a Hammett plot with R2 = 0.98 and ρ = +1.66. The two main pathways include direct transfer of the selenium moiety to the incoming alkene (π-ligand exchange) and the less favored ring-opening by attack at an iranium carbon to give a cis-bicyclic selenonium ion as supported by density functional theory (DFT) calculations. Branching ratios of each pathway indicated that electron-withdrawing groups directed more attack at carbon than selenium in agreement with previous solution-phase results. Increased steric bulk on selenium was investigated by changing the R group from a methyl to t-butyl, which not only shut down π-ligand exchange but also significantly reduced the overall reactivity. Finally, the reactivity of the iranium ion derived from Se-methylselenocysteine was investigated and shown to react faster and favor π-ligand exchange as the leaving group was changed from ethene to acrylic acid.
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Affiliation(s)
- Samuel C Brydon
- School of Chemistry and Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Catriona Thomson
- School of Chemistry and Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Richard A J O'Hair
- School of Chemistry and Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Jonathan M White
- School of Chemistry and Bio21 Institute, The University of Melbourne, Parkville, VIC 3010, Australia
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5
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Dong X, Klein M, Waldvogel SR, Morandi B. Controlling Selectivity in Shuttle Hetero-difunctionalization Reactions: Electrochemical Transfer Halo-thiolation of Alkynes. Angew Chem Int Ed Engl 2023; 62:e202213630. [PMID: 36336662 PMCID: PMC10107926 DOI: 10.1002/anie.202213630] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022]
Abstract
Shuttle hetero-difunctionalization reaction, in which two chemically distinct functional groups are transferred between two molecules, has long been an unmet goal due to the daunting challenges in controlling the chemo-, regio-, and stereoselectivity. Herein, we disclose an electrochemistry enabled shuttle reaction (e-shuttle) to selectively transfer one RS- and one X- group between β-halosulfides and unsaturated hydrocarbons via a consecutive paired electrolysis mechanism. The preferential anodic oxidation of one anion over the other, which is controlled by their distinct redox potentials, plays a pivotal role in controlling the high chemoselectivity of the process. This easily scalable methodology enables the construction of a myriad of densely functionalized β-halo alkenyl sulfides in unprecedented chemo-, regio-, and stereoselectivity using benign surrogates, e.g., 2-bromoethyl sulfide, avoiding the handling of corrosive and oxidative RS-Br reagents. In a broader context, these results open up new strategies for selective shuttle difunctionalization reactions.
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Affiliation(s)
- Xichang Dong
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Martin Klein
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Siegfried R Waldvogel
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
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Shainyan BA. Conjugative Stabilization versus Anchimeric Assistance in Carbocations. Molecules 2022; 28:molecules28010038. [PMID: 36615233 PMCID: PMC9822469 DOI: 10.3390/molecules28010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022] Open
Abstract
In this study, an old concept of anchimeric assistance is viewed from a different angle. Primary cations with two different heteroatomic substituents in the α-position to the cationic carbon atom CHXY−CH2+ (X, Y = Me2N, MeO, Me3Si, Me2P, MeS, MeS, Br) can be stabilized by the migration of either the X or Y group to the cation center. In each case, the migration can be either complete, resulting in the transfer of the migrating group to the adjacent carbon atom and the formation of a secondary carbocation stabilized by the remaining heteroatom, or incomplete, leading to an anchimerically assisted iranium ion. For all combinations of the above groups, these transformations have been studied by theoretical analysis at the MP2/aug-cc-pVTZ level and were shown to occur depending on the ability of anchimeric assistance by X and Y, as well as the conformation of the starting primary carbocation. In the conformers of α-amino cations with the p-orbital, C−N bond and the nitrogen lone pair in one plane, the Me2N group migrates to the cationic center to give aziranium ions. Otherwise, the second heteroatom is shifted to give iminium ions, without or with very slight anchimeric assistance. In the α-methoxy cations, the MeO group can be shifted to the cationic center to give the O-anchimerically assisted ions as local minima, the global minima being the ions anchimerically assisted by another heteroatom. The electropositive silicon tends to migrate towards the cationic center, but with the formation of a π-complex of the Me3Si cation with the C=C bond rather than a Si-anchimerically assisted cation. The phosphorus atom can either fully migrate to the cationic center (X = P, Y = S, Se) or form anchimerically stabilized phosphiranium ions (X = P, Y = O, Si, Br). The order of the anchimeric assistance for the heaviest atoms decreases in the order Se >> S > Br.
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Affiliation(s)
- Bagrat A Shainyan
- A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia
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7
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Rozentsveig IB, Nikonova VS, Manuilov VV, Ushakov IA, Borodina TN, Smirnov VI, Korchevin NA. Heterocyclization of Bis(2-chloroprop-2-en-1-yl)sulfide in Hydrazine Hydrate–KOH: Synthesis of Thiophene and Pyrrole Derivatives. Molecules 2022; 27:molecules27206785. [PMID: 36296380 PMCID: PMC9609936 DOI: 10.3390/molecules27206785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/03/2022] [Accepted: 10/05/2022] [Indexed: 11/30/2022] Open
Abstract
The article is devoted to heterocyclization of bis(2-chloroprop-2-en-1-yl)sulfide which proceeds in hydrazine hydrate–alkali medium and leads to formation of thiophene and pyrrole derivatives: previously described 4,5,9,10-tetrahydrocycloocta[1,2-c;5,8-c’]dithiophene, as well as unknown hydrazone of 5-methylidene-3-methyldihydrothiophen-2-one and 1-amino-2-(propynylsulfanylpropenylsulfanyl)-3,5-dimethylpyrrole. Tentative mechanisms for the formation of the heterocyclic products are discussed. Obtained hydrazone of 5-methylidene-3-methyldihydrothiophen-2-one was used for the synthesis of a range of azine derivatives and in oxidation process with SeO2. The found reactions open up expedient approaches to the formation of various hardly accessible thiophene and pyrrole compounds from 2,3-dichloropropene and elemental sulfur as starting reagents.
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Affiliation(s)
- Igor B. Rozentsveig
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
- Chemistry Department, Irkutsk State University, Karl Marx Str., 1, 664003 Irkutsk, Russia
- Correspondence:
| | - Valentina S. Nikonova
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
| | - Victor V. Manuilov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
| | - Igor A. Ushakov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
| | - Tatyana N. Borodina
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
| | - Vladimir I. Smirnov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
| | - Nikolay A. Korchevin
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky St., 664033 Irkutsk, Russia
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8
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Cao RF, Yu L, Huo YX, Li Y, Xue XS, Chen ZM. Chiral Lewis Base Catalyzed Enantioselective Selenocyclization of 1,1-Disubstituted Alkenes: Asymmetric Synthesis of Selenium-Containing 4 H-3,1-Benzoxazines. Org Lett 2022; 24:4093-4098. [PMID: 35649184 DOI: 10.1021/acs.orglett.2c01731] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An enantioselective selenocyclization of 1,1-disubstituted alkenes was achieved for the first time, which is enabled by a novel combination of a chiral BINAM-derived sulfide and an achiral Lewis acid. Various selenium-containing 4H-3,1-benzoxazines, which are widely present in a range of medicinally relevant molecules, were readily obtained in moderate to good yields and good to excellent enantioselectivities. A series of tetrasubstituted carbon stereocenters were facilely constructed.
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Affiliation(s)
- Ren-Fei Cao
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Lu Yu
- College of Chemistry, Nankai University, Tianjin 300071, P.R. China
| | - Yu-Xuan Huo
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
| | - Yao Li
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, P.R. China
| | - Xiao-Song Xue
- College of Chemistry, Nankai University, Tianjin 300071, P.R. China.,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, P.R. China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, Shanghai 200240, P.R. China
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Kizas O, Moiseev S, Chaschin I, Godovikov I, Dolgushin F, Khokhlov A. New unsaturated sulfur-containing heterocycles derived from 1,3-dithiane or 1,3,5-trithiane and α -ferrocenylvinyl cation generated from ethynylferrocene. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Zhu D, Chen ZM. Application of Chiral Lewis Base/Brønsted Acid Synergistic Catalysis Strategy in Enantioselective Synthesis of Organic Sulfides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Brydon SC, da Silva G, O'Hair RAJ, White JM. Experimental and theoretical investigations into the mechanisms of haliranium ion π-ligand exchange reactions with cyclic alkenes in the gas phase. Phys Chem Chem Phys 2021; 23:25572-25589. [PMID: 34783339 DOI: 10.1039/d1cp04494j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Haliranium ions are intermediates often involved in complex cyclisations, where their structure allows for control over stereospecific outcomes. Extending previous studies into their structure and reactivity in the gas phase, this work focuses on the bimolecular reactivity of ethyl bromiranium and iodiranium ions with cyclic alkenes. The products observed via mass spectrometry were broadly attributed to either addition by cyclohexene at the iranium carbon or attack at the heteroatom to undergo associative π-ligand exchange. The model proposed was supported by both kinetic experiments and DFT calculations, where the rate of parent ion consumption proceeded at the collision rate (Br: k2 = 1.25 × 10-9 and I: k2 = 1.28 × 10-9 cm3 molecule-1 s-1) with the subsequent partitioning dependent on the relative stability of the initial intermediates and the relatively large barriers present in the addition pathway. Exploration of the effect of cycloalkene ring strain on the iodiranium ion reactivity was conducted with a series of crossover experiments with 50 : 50 mixtures of either cyclohexene or cis-cyclooctene and styrene, where the outcomes were dependent on the competing ring strain relief gained by reaction with each neutral. The nature of the exchange transition state was determined to be pseudocoarctate following both natural bond orbital (NBO) and anisotropy of the induced current density (ACID) analysis.
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Affiliation(s)
- Samuel C Brydon
- School of Chemistry and Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Gabriel da Silva
- Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Richard A J O'Hair
- School of Chemistry and Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Jonathan M White
- School of Chemistry and Bio21 Institute of Molecular Science and Biotechnology, The University of Melbourne, Parkville, Victoria 3010, Australia.
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Chemistry of Spontaneous Alkylation of Methimazole with 1,2-Dichloroethane. Molecules 2021; 26:molecules26227032. [PMID: 34834123 PMCID: PMC8625577 DOI: 10.3390/molecules26227032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/02/2021] [Accepted: 11/17/2021] [Indexed: 11/17/2022] Open
Abstract
Spontaneous S-alkylation of methimazole (1) with 1,2-dichloroethane (DCE) into 1,2-bis[(1-methyl-1H-imidazole-2-yl)thio]ethane (2), that we have described recently, opened the question about its formation pathway(s). Results of the synthetic, NMR spectroscopic, crystallographic and computational studies suggest that, under given conditions, 2 is obtained by direct attack of 1 on the chloroethyl derivative 2-[(chloroethyl)thio]-1-methyl-1H-imidazole (3), rather than through the isolated stable thiiranium ion isomer, i.e., 7-methyl-2H, 3H, 7H-imidazo[2,1-b]thiazol-4-ium chloride (4a, orthorhombic, space group Pnma), or in analogy with similar reactions, through postulated, but unproven intermediate thiiranium ion 5. Furthermore, in the reaction with 1, 4a prefers isomerization to the N-chloroethyl derivative, 1-chloroethyl-2,3-dihydro-3-methyl-1H-imidazole-2-thione (7), rather than alkylation to 2, while 7 further reacts with 1 to form 3-methyl-1-[(1-methyl-imidazole-2-yl)thioethyl]-1H-imidazole-2-thione (8, monoclinic, space group P 21/c). Additionally, during the isomerization of 3, the postulated intermediate thiiranium ion 5 was not detected by chromatographic and spectroscopic methods, nor by trapping with AgBF4. However, trapping resulted in the formation of the silver complex of compound 3, i.e., bis-{2-[(chloroethyl)thio]-1-methyl-1H-imidazole}-silver(I)tetrafluoroborate (6, monoclinic, space group P 21/c), which cyclized upon heating at 80 °C to 7-methyl-2H, 3H, 7H-imidazo[2,1-b]thiazol-4-ium tetrafluoroborate (4b, monoclinic, space group P 21/c). Finally, we observed thermal isomerization of both 2 and 2,3-dihydro-3-methyl-1-[(1-methyl-1H-imidazole-2-yl)thioethyl]-1H-imidazole-2-thione (8), into 1,2-bis(2,3-dihydro-3-methyl-1H-imidazole-2-thione-1-yl)ethane (9), which confirmed their structures.
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13
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Quantum Chemical and Experimental Studies of an Unprecedented Reaction Pathway of Nucleophilic Substitution of 2-Bromomethyl-1,3-thiaselenole with 1,3-Benzothiazole-2-thiol Proceeding Stepwise at Three Different Centers of Seleniranium Intermediates. Molecules 2021; 26:molecules26216685. [PMID: 34771094 PMCID: PMC8588063 DOI: 10.3390/molecules26216685] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 11/17/2022] Open
Abstract
The results of quantum chemical and experimental studies of the reaction of 2-bromomethyl-1,3-thiaselenole with 1,3-benzothiazole-2-thiol made it possible to discover the unprecedented pathway of this reaction, which proceeds stepwise at three different centers of seleniranium intermediates. The first stage includes an attack of thiolate anion at the selenium atom of the seleniranium cation accompanied by ring opening with the formation of (Z)-2-[(1,3-benzothiazol-2-ylsulfanyl)selanyl]ethenyl vinyl sulfide, which is converted to six-membered heterocycle, 2-(2,3-dihydro-1,4-thiaselenin-2-ylsulfanyl)-1,3-benzothiazole, in a 99% yield. The latter compound undergoes rearrangement with ring contraction producing five-membered heterocycle, 2-[(1,3-thiaselenol-2-ylmethyl)sulfanyl]-1,3-benzothiazole, in a 99% yield (the thermodynamic product). The formation of 1,2-bis[(Z)-2-(vinylsulfanyl)ethenyl] diselenide is the result of the disproportionation of (Z)-2-[(1,3-benzothiazol-2-ylsulfanyl)selanyl]ethenyl vinyl sulfide. Thus, based on the quantum chemical and experimental studies, a regioselective synthesis of the reaction products in high yields was developed.
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14
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Schifferer L, Stinglhamer M, Kaur K, Macheño OG. Halides as versatile anions in asymmetric anion-binding organocatalysis. Beilstein J Org Chem 2021; 17:2270-2286. [PMID: 34621390 PMCID: PMC8450959 DOI: 10.3762/bjoc.17.145] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/19/2021] [Indexed: 11/29/2022] Open
Abstract
This review intends to provide an overview on the role of halide anions in the development of the research area of asymmetric anion-binding organocatalysis. Key early elucidation studies with chloride as counter-anion confirmed this type of alternative activation, which was then exploited in several processes and contributed to the advance and consolidation of anion-binding catalysis as a field. Thus, the use of the halide in the catalyst–anion complex as both a mere counter-anion spectator or an active nucleophile has been depicted, along with the new trends toward additional noncovalent contacts within the HB-donor catalyst and supramolecular interactions to both the anion and the cationic reactive species.
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Affiliation(s)
- Lukas Schifferer
- Organic Chemistry Institute, Westfälische-Wilhelms University Münster, Correnstraße 36, 48149 Münster, Germany
| | - Martin Stinglhamer
- Organic Chemistry Institute, Westfälische-Wilhelms University Münster, Correnstraße 36, 48149 Münster, Germany
| | - Kirandeep Kaur
- Organic Chemistry Institute, Westfälische-Wilhelms University Münster, Correnstraße 36, 48149 Münster, Germany
| | - Olga García Macheño
- Organic Chemistry Institute, Westfälische-Wilhelms University Münster, Correnstraße 36, 48149 Münster, Germany
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Potapov VA, Ishigeev RS, Belovezhets LA, Amosova SV. A Novel Family of [1,4]Thiazino[2,3,4- ij]quinolin-4-ium Derivatives: Regioselective Synthesis Based on Unsaturated Heteroatom and Heterocyclic Compounds and Antibacterial Activity. Molecules 2021; 26:5579. [PMID: 34577049 PMCID: PMC8472155 DOI: 10.3390/molecules26185579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 11/16/2022] Open
Abstract
A novel family of [1,4]thiazino[2,3,4-ij]quinolin-4-ium derivatives was synthesized by annulation reactions of 8-quinolinesulfenyl chloride with unsaturated heteroatom and heterocyclic compounds. It was found that the reactions with 4-pentenoic and 5-hexenoic acids, allyl chloride and bromide, allyl cyanate and vinyl heterocyclic compounds (N-vinyl pyrrolidin-2-one and 1-vinylimidazole) proceeded in a regioselective mode but with the opposite regiochemistry. The reactions with vinyl heterocyclic compounds included electrophilic addition of the sulfur atom of 8-quinolinesulfenyl chloride to the β-carbon atom of the vinyl group. In the case of other substrates, the annulation proceeded with the attachment of the sulfur atom to the α-carbon atom of the vinyl group. The antibacterial activity of novel water-soluble compounds against Enterococcus durans, Bacillus subtilis and Escherichia coli was evaluated. Compounds with high antibacterial activity were found.
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Affiliation(s)
- Vladimir A. Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of the Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia; (R.S.I.); (L.A.B.); (S.V.A.)
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16
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Potapov VA, Ishigeev RS, Amosova SV. Efficient Regioselective Synthesis of Novel Condensed Sulfur-Nitrogen Heterocyclic Compounds Based on Annulation Reactions of 2-Quinolinesulfenyl Halides with Alkenes and Cycloalkenes. Molecules 2021; 26:4844. [PMID: 34443431 PMCID: PMC8399591 DOI: 10.3390/molecules26164844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 11/16/2022] Open
Abstract
The preparation of novel reagents 2-quinolinesulfenyl chloride and bromide based on available 2-mercaptoquinoline has been described. This approach opens up opportunities for the introduction of 2-quinolinesulfenyl chloride and bromide into organic synthesis. Regioselective synthesis of novel 1,2-dihydro[1,3]thiazolo[3,2-a]quinolin-10-ium derivatives in high yields has been developed by annulation reactions of 2-quinolinesulfenyl chloride and bromide with alkenes. Condensed tetracyclic products have been obtained by the reactions of 2-quinolinesulfenyl chloride and bromide with cycloalkenes. The opposite regiochemistry in the reactions with styrene, isoeugenol and 1-alkenes was discussed.
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Affiliation(s)
- Vladimir A. Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russia; (R.S.I.); (S.V.A.)
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17
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Rode K, Ramadas Narasimhamurthy P, Rieger R, Krätzschmar F, Breder A. Synthesis of Aminoallenes via Selenium-π-Acid-Catalyzed Cross-Coupling of N-Fluorinated Sulfonimides with Simple Alkynes. European J Org Chem 2021; 2021:1720-1725. [PMID: 33776555 PMCID: PMC7986078 DOI: 10.1002/ejoc.202001673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/15/2021] [Indexed: 02/02/2023]
Abstract
The facile synthesis of aminoallenes, accomplished by a selenium-π-acid-catalyzed cross-coupling of an N-fluorinated sulfonimide with simple, non-activated alkynes, is reported. Until now, aminoallenes were difficult to be accessed by customary means, inasmuch as pre-activated and, in part, intricate starting materials were necessary for their synthesis. In sharp contrast, the current study shows that ordinary internal alkynes can serve as simple and readily available precursors for the construction of the aminoallene motif. The operating reaction conditions tolerate numerous functional groups such as esters, nitriles, (silyl)ethers, acetals, and halogen substituents, furnishing the target compounds in up to 86 % yield.
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Affiliation(s)
- Katharina Rode
- Institut für Organische und Biomolekulare ChemieUniversität GöttingenTammannstr. 237077GöttingenGermany
| | | | - Rene Rieger
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Felix Krätzschmar
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Alexander Breder
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
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18
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Dong X, Roeckl JL, Waldvogel SR, Morandi B. Merging shuttle reactions and paired electrolysis for reversible vicinal dihalogenations. Science 2021; 371:507-514. [DOI: 10.1126/science.abf2974] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/30/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Xichang Dong
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
| | - Johannes L. Roeckl
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
- Department of Chemistry, Johannes Gutenberg University, Mainz, Germany
| | | | - Bill Morandi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich, Switzerland
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19
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Poleschner H, Seppelt K. Attempts to Synthesize a Thiirane, Selenirane, and Thiirene by Dealkylation of Chalcogeniranium and Thiirenium Salts. Chemistry 2021; 27:649-659. [PMID: 32737908 PMCID: PMC7821244 DOI: 10.1002/chem.202003461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Indexed: 02/05/2023]
Abstract
Thiiranium salts [Ad2 SR]+ X- (5, 8, 9, 11, 12; X- =Tf2 N- (Tf=CF3 SO2 ), SbCl6 - ) and seleniranium salts [Ad2 SeR]+ X- (14, 16, 17, 23-25; X- =Tf2 N- , BF4 - , CHB11 Cl11 - , SbCl6 - ) are synthesized from strained alkene bis(adamantylidene) (1). The disulfides and the diselenides (Me3 SiCH2 CH2 E)2 (4, 13), (tBuMe2 SiCH2 CH2 E)2 (7, 22), and (NCCH2 CH2 E)2 (10, 15; E=S, Se) have been used. The thiirenium salts [tBu2 C2 SR]+ X- (34) and [Ad2 C2 SR]+ X- (35, 36) are prepared from the bis-tert-butylacetylene (2) and bis-adamantyl-acetylene (3) with R=Me3 SiCH2 CH2 and tBuMe2 SiCH2 CH2 . Attempts to cleave off the groups Me3 SiCH2 CH2 , tBuMe2 SiCH2 CH2 , and NCCH2 CH2 resulted in thiiranes 27, 30. No selenirane Ad2 Se (33) is formed from seleniranium salts, instead cleavage to the alkene (1) and diselenide (13, 15) occurs. The thiirenium salt [Ad2 C2 SCH2 CH2 SiMe3 ]+ Tf2 N- (35) does not yield the thiirene Ad2 C2 S (37), the three-membered ring is cleaved, forming the alkyne (3) and disulfide (4). All compounds are characterized by ESI mass spectra, NMR spectra, and by quantum chemical calculations. Crystal structures of the salts 8, 12, 25, 17, 26, 36 and the thiiranes 27, 30 are presented.
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Affiliation(s)
- Helmut Poleschner
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstr. 34–3614195BerlinGermany
| | - Konrad Seppelt
- Institut für Chemie und Biochemie, Anorganische ChemieFreie Universität BerlinFabeckstr. 34–3614195BerlinGermany
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20
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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] [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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21
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Brydon SC, Silva G, White JM. Evidence that π‐ligand exchange reactions of chalcogen iranium ions proceed via Hückel pseudocoarctate transition states. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Samuel C. Brydon
- School of Chemistry and Bio21 Institute The University of Melbourne Parkville Victoria Australia
| | - Gabriel Silva
- Chemical Engineering The University of Melbourne Parkville Victoria Australia
| | - Jonathan M. White
- School of Chemistry and Bio21 Institute The University of Melbourne Parkville Victoria Australia
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22
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Matviitsuk A, Panger JL, Denmark SE. Katalytische enantioselektive Sulfenofunktionalisierung von Alkenen: Entwicklung und aktuelle Fortschritte. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Jesse L. Panger
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
| | - Scott E. Denmark
- Roger Adams Laboratory Department of Chemistry University of Illinois Urbana Illinois 61801 USA
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23
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Matviitsuk A, Panger JL, Denmark SE. Catalytic, Enantioselective Sulfenofunctionalization of Alkenes: Development and Recent Advances. Angew Chem Int Ed Engl 2020; 59:19796-19819. [PMID: 32452077 PMCID: PMC7936392 DOI: 10.1002/anie.202005920] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Indexed: 12/13/2022]
Abstract
The last decade has witnessed a burgeoning of new methods for the enantioselective vicinal difunctionalization of alkenes initiated by electrophilic sulfenyl group transfer. The addition of sulfenium ions to alkenes results in the generation of chiral, non-racemic thiiranium ions. These highly reactive intermediates are susceptible to attack by a myriad of nucleophiles in a stereospecific ring-opening event to afford anti 1,2-sulfenofunctionalized products. The practical application of sulfenium ion transfer has been enabled by advances in the field of Lewis base catalysis. This Review will chronicle the initial discovery and characterization of thiiranium ion intermediates followed by the determination of their configurational stability and the challenges of developing enantioselective variants. Once the framework for the reactivity and stability of thiiranium ions has been established, a critical analysis of pioneering studies will be presented. Finally, a comprehensive discussion of modern synthetic applications will be categorized around the type of nucleophile employed for sulfenofunctionalization.
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Affiliation(s)
- Anastassia Matviitsuk
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Jesse L Panger
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois, 61801, USA
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24
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Amosova SV, Filippov AA, Makhaeva NA, Albanov AI, Potapov VA. Regio- and stereoselective synthesis of new ensembles of diversely functionalized 1,3-thiaselenol-2-ylmethyl selenides by a double rearrangement reaction. Beilstein J Org Chem 2020; 16:515-523. [PMID: 32273912 PMCID: PMC7113545 DOI: 10.3762/bjoc.16.47] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 03/09/2020] [Indexed: 01/31/2023] Open
Abstract
The reaction of 2-(bromomethyl)-1,3-thiaselenole with potassium selenocyanate proceeded via a rearrangement with ring expansion, leading to a six-membered 2,3-dihydro-1,4-thiaselenin-2-yl selenocyanate (kinetic product) which in turn underwent rearrangement with ring contraction to a 1,3-thiaselenol-2-ylmethyl selenocyanate (thermodynamic product). These rearrangements occurred by a nucleophilic attack of the selenocyanate anion at two different carbon atoms of the seleniranium intermediate. The efficient regioselective synthesis of alkyl, allyl, 2-propynyl, benzyl, 4-fluorobenzyl, and 2-pyridinylmethyl 1,3-thiaselenol-2-ylmethyl selenides was developed based on the generation of sodium 1,3-thiaselenol-2-ylmethylselenolate from 1,3-thiaselenol-2-ylmethyl selenocyanate or bis(1,3-thiaselenol-2-ylmethyl) diselenide followed by nucleophilic substitution reactions. Sodium 1,3-thiaselenol-2-ylmethylselenolate underwent nucleophilic addition to alkyl propiolates in a regio- and stereoselective manner affording 1,3-thiaselenol-2-ylmethyl vinyl selenides in high yields predominantly with Z-configuration. Not a single representative of the 1,3-thiaselenol-2-ylmethyl selenide scaffold has been previously described in the literature.
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Affiliation(s)
- Svetlana V Amosova
- A. E. Favorsky Irkutsk Institute of Chemistry, SD RAS, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
| | - Andrey A Filippov
- A. E. Favorsky Irkutsk Institute of Chemistry, SD RAS, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
| | - Nataliya A Makhaeva
- A. E. Favorsky Irkutsk Institute of Chemistry, SD RAS, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
| | - Alexander I Albanov
- A. E. Favorsky Irkutsk Institute of Chemistry, SD RAS, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
| | - Vladimir A Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry, SD RAS, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
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25
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Potapov VA, Ishigeev RS, Shkurchenko IV, Zinchenko SV, Amosova SV. Natural Compounds and Their Structural Analogs in Regio- and Stereoselective Synthesis of New Families of Water-Soluble 2 H,3 H-[1,3]thia- and -Selenazolo[3,2- a]pyridin-4-ium Heterocycles by Annulation Reactions. Molecules 2020; 25:E376. [PMID: 31963275 PMCID: PMC7024257 DOI: 10.3390/molecules25020376] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/05/2020] [Accepted: 01/13/2020] [Indexed: 01/22/2023] Open
Abstract
It has been found that both eugenol and isoeugenol derivatives reacted with 2-pyridinesulfenyl and 2-pyridineselenenyl halides in a regioselective mode affording products with opposite regiochemistry. Synthesis of new families of 2H,3H-[1,3]thia- and -selenazolo[3,2-a]pyridin-4-ium heterocycles has been developed by annulation reactions of 2-pyridinechalcogenyl halides with natural compounds (eugenol, isoeugenol, methyl eugenol, methyl isoeugenol, acetyl eugenol, trans-anethole) and their structural analogs. The influence of the substrate structure and the nature of halogen on the product yields are studied. The 2-pyridinesulfenyl and 2-pyridineselenenyl chlorides are more efficient reagents compared to corresponding bromides. The obtained condensed heterocycles are novel water-soluble functionalized compounds with promising biological activity.
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Affiliation(s)
- Vladimir A. Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian; (R.S.I.); (I.V.S.); (S.V.Z.); (S.V.A.)
| | - Roman S. Ishigeev
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian; (R.S.I.); (I.V.S.); (S.V.Z.); (S.V.A.)
| | - Irina V. Shkurchenko
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian; (R.S.I.); (I.V.S.); (S.V.Z.); (S.V.A.)
- Pedagogical Institute, Irkutsk State University, 6 Nizhniaja Naberezhnaya Str., Irkutsk 664003, Russia
| | - Sergey V. Zinchenko
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian; (R.S.I.); (I.V.S.); (S.V.Z.); (S.V.A.)
| | - Svetlana V. Amosova
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Division of The Russian Academy of Sciences, 1 Favorsky Str., Irkutsk 664033, Russian; (R.S.I.); (I.V.S.); (S.V.Z.); (S.V.A.)
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26
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Remarkable Alkene-to-Alkene and Alkene-to-Alkyne Transfer Reactions of Selenium Dibromide and PhSeBr. Stereoselective Addition of Selenium Dihalides to Cycloalkenes. Molecules 2020; 25:molecules25010194. [PMID: 31947731 PMCID: PMC6983007 DOI: 10.3390/molecules25010194] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/27/2019] [Accepted: 12/31/2019] [Indexed: 11/17/2022] Open
Abstract
The original goal of this research was to study stereochemistry of selenium dihalides addition to cycloalkenes and properties of obtained products. Remarkable alkene-to-alkene and alkene-to-alkyne transfer reactions of selenium dibromide and PhSeBr were discovered during this research. The adducts of selenium dibromide with alkenes or cycloalkenes easily exchange SeBr2 with other unsaturated compounds, including acetylenes, at room temperature, in acetonitrile. Similar alkene-to-alkene and alkene-to-alkyne transfer reactions of the PhSeBr adducts with alkenes or cycloalkenes take place. The supposed reaction pathway includes the selenium group transfer from seleniranium species to alkenes or alkynes. It was found that the efficient SeBr2 and PhSeBr transfer reagents are Se(CH2CH2Br)2 and PhSeCH2CH2Br, which liberate ethylene, leading to a shift in equilibrium. The regioselective and stereoselective synthesis of bis(E-2-bromovinyl) selenides and unsymmetrical E-2-bromovinyl selenides was developed based on the SeBr2 and PhSeBr transfer reactions which proceeded with higher selectivity compared to analogous addition reactions of SeBr2 and PhSeBr to alkynes under the same conditions.
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27
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Brydon SC, Lim SF, Khairallah GN, Maître P, Loire E, da Silva G, O'Hair RAJ, White JM. Reactions of Thiiranium and Sulfonium Ions with Alkenes in the Gas Phase. J Org Chem 2019; 84:10076-10087. [PMID: 31328517 DOI: 10.1021/acs.joc.9b01264] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ion-molecule reactions between thiiranium ion 11 (m/z 213) and cyclohexene and cis-cyclooctene resulted in the formation of addition products 17a and 17b (m/z 295 and m/z 323, respectively) via an electrophilic addition pathway. Associative π-ligand exchange involving direct transfer of the PhS+ moiety, which has been observed for analogous seleniranium ions in the gas phase, did not occur despite previous solution experiments suggesting it as a valid pathway. DFT calculations at the M06-2X/def2-TZVP level of theory showed high barriers for the exchange reaction, while the addition pathway was more plausible. Further support for this pathway was provided with Hammett plots showing the rate of reaction to increase as the benzylic position of thiiranium ion derivatives became more electrophilic (ρ = +1.69; R2 = 0.974). The more reactive isomeric sulfonium ion 22 was discounted as being responsible for the observed reactivity with infrared spectroscopy and DFT calculations suggesting little possibility for isomerization. To further explore the differences in reactivity, thiiranium ion 25 and sulfonium ion 27 were formed independently, with the latter ion reacting over 260 times faster toward cis-cyclooctene than the thiiranium ion rationalized by calculations suggesting a barrierless pathway for sulfonium ion 27 to react with the cycloalkene.
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Affiliation(s)
| | | | - George N Khairallah
- Accurate Mass Scientific Pty Ltd , P.O. Box 92, Keilor , VIC 3036 , Australia
| | - Philippe Maître
- Laboratoire de Chimie Physique (UMR8000), Université Paris-Sud, CNRS , Université Paris Saclay , Orsay 91405 , France
| | - Estelle Loire
- Laboratoire de Chimie Physique (UMR8000), Université Paris-Sud, CNRS , Université Paris Saclay , Orsay 91405 , France
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28
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Musalov MV, Yakimov VA, Potapov VA, Amosova SV, Zinchenko SV. Synthesis of Functionalized Diorganyl Selenides from Selenium Dihalides and Allylic Aromatic Compounds. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1070428019080141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Bhawal BN, Morandi B. Catalytic Isofunctional Reactions—Expanding the Repertoire of Shuttle and Metathesis Reactions. Angew Chem Int Ed Engl 2019; 58:10074-10103. [DOI: 10.1002/anie.201803797] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Benjamin N. Bhawal
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Germany
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Switzerland
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Germany
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Switzerland
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30
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Scinto SL, Ekanayake O, Seneviratne U, Pigga JE, Boyd SJ, Taylor MT, Liu J, Am Ende CW, Rozovsky S, Fox JM. Dual-Reactivity trans-Cyclooctenol Probes for Sulfenylation in Live Cells Enable Temporal Control via Bioorthogonal Quenching. J Am Chem Soc 2019; 141:10932-10937. [PMID: 31246462 DOI: 10.1021/jacs.9b01164] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Sulfenylation (RSH → RSOH) is a post-translational protein modification associated with cellular mechanisms for signal transduction and the regulation of reactive oxygen species. Protein sulfenic acids are challenging to identify and study due to their electrophilic and transient nature. Described here are sulfenic acid modifying trans-cycloocten-5-ol (SAM-TCO) probes for labeling sulfenic acid functionality in live cells. These probes enable a new mode of capturing sulfenic acids via transannular thioetherification, whereas "ordinary" trans-cyclooctenes react only slowly with sulfenic acids. SAM-TCOs combine with sulfenic acid forms of a model peptide and proteins to form stable adducts. Analogously, SAM-TCO with the selenenic acid form of a model protein leads to a selenoetherification product. Control experiments illustrate the need for the transannulation process coupled with the activated trans-cycloalkene functionality. Bioorthogonal quenching of excess unreacted SAM-TCOs with tetrazines in live cells provides both temporal control and a means of preventing artifacts caused by cellular-lysis. A SAM-TCO biotin conjugate was used to label protein sulfenic acids in live cells, and subsequent quenching by tetrazine prevented further labeling even under harshly oxidizing conditions. A cell-based proteomic study validates the ability of SAM-TCO probes to identify and quantify known sulfenic acid redox proteins as well as targets not captured by dimedone-based probes.
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Affiliation(s)
- Samuel L Scinto
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Oshini Ekanayake
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Uthpala Seneviratne
- Pfizer Worldwide Research and Development , Cambridge , Massachusetts 02139 , United States
| | - Jessica E Pigga
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Samantha J Boyd
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Michael T Taylor
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Jun Liu
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Christopher W Am Ende
- Pfizer Worldwide Research and Development , Groton , Connecticut 06340 , United States
| | - Sharon Rozovsky
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
| | - Joseph M Fox
- Department of Chemistry and Biochemistry , University of Delaware , Newark , Delaware 19716 , United States
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31
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Maji B. Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Maji
- Department of ChemistryIndira Gandhi National Tribal University Amarkantak – 484886 Madhya Pradesh India
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32
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Alom NE, Kaur N, Wu F, Saluga SJ, Li W. Catalytic Regio- and Stereoselective Alkene Sulfenoamination for 1,4-Benzothiazine Synthesis. Chemistry 2019; 25:6902-6906. [PMID: 30913321 DOI: 10.1002/chem.201900549] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Indexed: 12/20/2022]
Abstract
An alkene sulfenoamination reaction with 2-aminothiophenol is developed using iodide catalysis. This reaction renders access to useful 1,4-benzothiazines with good functional group compatibility including both electron-donating and electron-withdrawing substituents. The reaction is proposed to proceed through an inversion of the polarity of the thiol functionality. Our mechanistic studies reveal that both thiiranium and thiyl radical pathways are plausible and that the disulfide reagent can also function as a viable substrate in this reaction.
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Affiliation(s)
- Nur-E Alom
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Navdeep Kaur
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Fan Wu
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Shannon Jasmine Saluga
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
| | - Wei Li
- Department of Chemistry and Biochemistry and School of Green Chemistry and Engineering, The University of Toledo, Toledo, OH, 43606, USA
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33
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Bhawal BN, Morandi B. Katalytische, isofunktionelle Reaktionen – Erweiterung des Repertoires an Shuttle‐ und Metathesereaktionen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201803797] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Benjamin N. Bhawal
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Deutschland
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Schweiz
| | - Bill Morandi
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim an der Ruhr Deutschland
- Laboratorium für Organische ChemieETH Zürich 8093 Zürich Schweiz
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34
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de Oliveira IM, Esteves CHA, Darbem MP, Pimenta DC, Zukerman‐Schpector J, Ferreira AG, Stefani HA, Manarin F. Iron (III)‐Promoted Synthesis of Substituted 4
H
‐Chalcogenochromenes and Chemoselective Functionalization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900142] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Isadora M. de Oliveira
- Departamento de Química Fundamental, Instituto de QuímicaUniversidade de São Paulo São Paulo, SP – Brazil
| | - C. Henrique A. Esteves
- Departamento de Farmácia, Faculdade de Ciências FarmacêuticasUniversidade de São Paulo, SP – Brazil
| | - Mariana P. Darbem
- Departamento de Farmácia, Faculdade de Ciências FarmacêuticasUniversidade de São Paulo, SP – Brazil
| | | | | | - Antonio G. Ferreira
- Departamento de QuímicaUniversidade Federal de São Carlos São Carlos, SP – Brazil
| | - Hélio A. Stefani
- Departamento de Farmácia, Faculdade de Ciências FarmacêuticasUniversidade de São Paulo, SP – Brazil
| | - Flavia Manarin
- Centro de Engenharias e Ciências Exatas – CECEUniversidade Estadual do Oeste do Paraná Toledo, PR – Brazil
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35
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Bock J, Daniliuc CG, Bergander K, Mück-Lichtenfeld C, Hennecke U. Synthesis, structural characterisation, and synthetic application of stable seleniranium ions. Org Biomol Chem 2019; 17:3181-3185. [PMID: 30839043 DOI: 10.1039/c9ob00078j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stable seleniranium ions were prepared from easily available stable bromiranium ions and diselenides. The solid state structure of the obtained seleniranium ions was determined by X-ray crystallographic analysis and their alkene-to-alkene transfer was investigated by NMR techniques. The rapid alkene-to-alkene transfer of the selenium group enabled the application of the seleniranium ion salts as selenenylating agents, which led to very efficient and highly diastereoselective, selenium-induced polyene-type cyclisations of terpene analogues.
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Affiliation(s)
- Jonathan Bock
- Organic Chemistry Institute, University of Muenster, Corrensstr. 40, 48149 Muenster, Germany
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36
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Kurkutov EO, Potapov VA, Amosova SV. Example of a Facile Substitution of the Hydroxy Group Due to the Anchimeric Assistance of Selenium. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1070428018110167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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37
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An X, Lu W, Pang M, Zhang Z, Zhu X, Zhu J, Pan X. One-pot cascade polymerization based on the addition reactions of electrophilic selenium reagents to alkenes. Polym Chem 2019. [DOI: 10.1039/c8py01441h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct polymerization based on the addition reactions of electrophilic selenium reagents to alkenes was established.
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Affiliation(s)
- Xiaowei An
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Weihong Lu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Minglun Pang
- Department of Chemistry
- Xi'an Jiaotong-Liverpool University
- Suzhou 215123
- P.R. China
| | - Zhengbiao Zhang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiulin Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jian Zhu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Xiangqiang Pan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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38
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Amosova SV, Filippov AS, Makhaeva NA, Albanov AI, Potapov VA. New methodology of nucleophilic substitution at three different centers of a seleniranium intermediate in reactions of 2-bromomethyl-1,3-thiaselenole with mercapto benzazoles. NEW J CHEM 2019. [DOI: 10.1039/c9nj02505g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Regio- and stereoselective reactions accompanied by rearrangements with ring extension or contraction.
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Affiliation(s)
- Svetlana V. Amosova
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Division of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Andrey S. Filippov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Division of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Nataliya A. Makhaeva
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Division of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Alexander I. Albanov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Division of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
| | - Vladimir A. Potapov
- A. E. Favorsky Irkutsk Institute of Chemistry
- Siberian Division of the Russian Academy of Sciences
- 664033 Irkutsk
- Russian Federation
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39
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Ciancaleoni G. Lewis Base Activation of Lewis Acid: A Detailed Bond Analysis. ACS OMEGA 2018; 3:16292-16300. [PMID: 31458265 PMCID: PMC6643480 DOI: 10.1021/acsomega.8b02243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/16/2018] [Indexed: 06/10/2023]
Abstract
The effect of a Lewis base (LB) on the nucleophilic attack on chalcogeniranium (chalcogen = sulfur and selenium) cations, the so-called LB activation of a Lewis acid, has been studied coupling natural orbital for chemical valence decomposition of the orbital interaction energy with charge displacement analysis. This methodology provides a detailed and accurate description of all the interactions (LB···chalcogen, chalcogen···olefin and olefin···ammonia) present in the system and leads to a deeper understanding of how they influence each other at all stages of the reaction: reactant complex, transition state, and product complex. In particular, the bond between the chalcogen and the olefin has been decomposed in terms of σ donation/π back-donation and the bond components quantified. This allowed determination of a linear relationship between the activation barrier of the nucleophilic attack and the net amount of charge donated by the olefin to the chalcogen.
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40
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Poleschner H, Seppelt K. Seleniranium and Telluriranium Salts. Chemistry 2018; 24:17155-17161. [DOI: 10.1002/chem.201804307] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Helmut Poleschner
- Institut für Chemie und BiochemieAnorganische ChemieFreie Universität Berlin Fabeckstrasse 34–36 14195 Berlin Germany
| | - Konrad Seppelt
- Institut für Chemie und BiochemieAnorganische ChemieFreie Universität Berlin Fabeckstrasse 34–36 14195 Berlin Germany
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41
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Abstract
Antioxidant enzyme glutathione peroxidase (GPx) decomposes hydroperoxides by utilizing the different redox chemistry of the selenium and sulfur. Here, we report a Se-catalysed para-amination of phenols while, in contrast, the reactions with sulfur donors are stoichiometric. A catalytic amount of phenylselenyl bromide smoothly converts N-aryloxyacetamides to N-acetyl p-aminophenols. When the para position was substituted (for example, with tyrosine), the dearomatization 4,4-disubstituted cyclodienone products were obtained. A combination of experimental and computational studies was conducted and suggested the weaker Se−N bond plays a key role in the completion of the catalytic cycle. Our method extends the selenium-catalysed processes to the functionalisation of aromatic compounds. Finally, we demonstrated the mild nature of the para-amination reaction by generating an AIEgen 2-(2′-hydroxyphenyl)benzothiazole (HBT) product in a fluorogenic fashion in a PBS buffer. Selenium has emerged as a metalloid for the catalytic construction of C–N bonds; however no functionalisation of aromatic compounds has been developed yet. Here, the authors report the para-amination of phenols via two successive sigmatropic rearrangements of a redox versatile Se–N bond.
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42
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Wilken M, Ortgies S, Breder A, Siewert I. Mechanistic Studies on the Anodic Functionalization of Alkenes Catalyzed by Diselenides. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01236] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mona Wilken
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Stefan Ortgies
- Universität Göttingen, Institut für Organische und Biomolekulare Chemie, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Alexander Breder
- Universität Göttingen, Institut für Organische und Biomolekulare Chemie, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Inke Siewert
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077 Göttingen, Germany
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43
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Ni Y, Zuo H, Yu H, Wu Y, Zhong F. Synergistic Catalysis-Enabled Thia-Aza-Prins Cyclization with DMSO and Disulfides: Entry to Sulfenylated 1,3-Oxazinanes and Oxazolidines. Org Lett 2018; 20:5899-5904. [DOI: 10.1021/acs.orglett.8b02551] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yang Ni
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Honghua Zuo
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Huaibin Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Yuzhou Wu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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44
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Shi Y, Li P. Transition-metal-free phenylselenylation of arenes with triflic anhydride activated methyl phenyl selenoxide. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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45
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Amosova SV, Rykunova YI, Filippov AS, Penzik MV, Makhaeva NA, Albanov AI, Potapov VA. Cascade regio- and stereoselective reactions of 2-bromomethyl-1,3-thiaselenole with water and ethylene glycol: En roote to the first representatives of polyfunctional 2,3-dihydro-1,4-thiaselenines. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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46
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Ni Y, Zuo H, Li Y, Wu Y, Zhong F. Copper-Catalyzed Regioselective Intramolecular Electrophilic Sulfenoamination via Lewis Acid Activation of Disulfides under Aerobic Conditions. Org Lett 2018; 20:4350-4353. [DOI: 10.1021/acs.orglett.8b01803] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yang Ni
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Honghua Zuo
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Yan Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Yuzhou Wu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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47
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Shen X, Gong H, Zhou Y, Zhao Y, Lin J, Chen M. Unsymmetrical difunctionalization of cyclooctadiene under continuous flow conditions: expanding the scope of ring opening metathesis polymerization. Chem Sci 2018; 9:1846-1853. [PMID: 29675230 PMCID: PMC5890785 DOI: 10.1039/c7sc04580h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 01/05/2018] [Indexed: 11/24/2022] Open
Abstract
Functionalized cyclooctenes (FCOEs) are important monomers in ring-opening metathesis polymerization (ROMP). Herein, a new library of disubstituted FCOEs bearing adjacent heteroatoms were synthesized and applied in ROMP. To address the issues associated with the handling of the reactive thienyl chloride intermediate, a two-step continuous flow method has been developed to prepare 5-thio-6-chlorocyclooctene compounds from abundant cyclooctadiene starting materials. These newly synthesized FCOE monomers were subsequently polymerized through ROMP, giving rise to a range of functionalized polymers with high molecular weights. Furthermore, we demonstrated that the thermal properties of these polymers could be fine-tuned by changing the functional groups in the FCOE monomers. We expect that this functionalization-polymerization strategy will enable the preparation of a range of polymeric materials with complex structures.
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Affiliation(s)
- Xianwang Shen
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry Education , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , China
| | - Honghong Gong
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
| | - Yang Zhou
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
| | - Yucheng Zhao
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry Education , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , China
| | - Jun Lin
- Key Laboratory of Medicinal Chemistry for Natural Resource , Ministry Education , School of Chemical Science and Technology , Yunnan University , Kunming , 650091 , China
| | - Mao Chen
- State Key Laboratory of Molecular Engineering of Polymers , Department of Macromolecular Science , Fudan University , Shanghai 200433 , China . ; http://chenmaofudan.wixsite.com/polymao
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48
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Depken C, Krätzschmar F, Rieger R, Rode K, Breder A. Photocatalytic Aerobic Phosphatation of Alkenes. Angew Chem Int Ed Engl 2018; 57:2459-2463. [DOI: 10.1002/anie.201711599] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 12/05/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Christian Depken
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Felix Krätzschmar
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Rene Rieger
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Katharina Rode
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Alexander Breder
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
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49
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Depken C, Krätzschmar F, Rieger R, Rode K, Breder A. Photokatalytische aerobe Phosphatierung von Alkenen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711599] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Christian Depken
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Felix Krätzschmar
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Rene Rieger
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Katharina Rode
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
| | - Alexander Breder
- Institut für Organische und Biomolekulare Chemie; Universität Göttingen; Tammannstraße 2 37077 Göttingen Deutschland
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50
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See JY, Yang H, Zhao Y, Wong MW, Ke Z, Yeung YY. Desymmetrizing Enantio- and Diastereoselective Selenoetherification through Supramolecular Catalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.7b03510] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Jie Yang See
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Hui Yang
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Yu Zhao
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Ming Wah Wong
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Zhihai Ke
- Department
of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
| | - Ying-Yeung Yeung
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
- Department
of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, People’s Republic of China
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