51
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Lucchetti N, Gilmour R. Reengineering Chemical Glycosylation: Direct, Metal-Free Anomeric O-Arylation of Unactivated Carbohydrates. Chemistry 2018; 24:16266-16270. [DOI: 10.1002/chem.201804416] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Nicola Lucchetti
- Organisch Chemisches Institut; Westfälische Wilhelms-Universität Münster; Correnstraße 40 48149 Münster Germany
| | - Ryan Gilmour
- Organisch Chemisches Institut; Westfälische Wilhelms-Universität Münster; Correnstraße 40 48149 Münster Germany
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52
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Bugaenko DI, Yurovskaya MA, Karchava AV. N-Arylation of DABCO with Diaryliodonium Salts: General Synthesis of N-Aryl-DABCO Salts as Precursors for 1,4-Disubstituted Piperazines. Org Lett 2018; 20:6389-6393. [PMID: 30265556 DOI: 10.1021/acs.orglett.8b02676] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Employing DABCO as a substrate, aryl(mesityl)iodonium triflates are introduced as arylating agents for a tertiary sp3-nitrogen. Mild conditions and exceptional selectivity of the aryl group transfer allow unprecedented N-aryl-DABCO salts to be obtained, bearing substituents of different electronic natures. This metal-free methodology has no analogy among known transition-metal-based reactions. The utility of isolated N-aryl-DABCO salts is demonstrated for the preparation of flibanserin.
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Affiliation(s)
- Dmitry I Bugaenko
- Department of Chemistry , Moscow State University , Moscow 119234 , Russia
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53
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Stenczel TK, Sinai Á, Novák Z, Stirling A. DFT calculations on the mechanism of copper-catalysed tandem arylation-cyclisation reactions of alkynes and diaryliodonium salts. Beilstein J Org Chem 2018; 14:1743-1749. [PMID: 30112079 PMCID: PMC6071690 DOI: 10.3762/bjoc.14.148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/20/2018] [Indexed: 11/23/2022] Open
Abstract
We present a computational mechanistic study on the copper(III)-catalysed carboarylation-ring closure reactions leading to the formation of functionalised heterocycles. We have performed DFT calculations along selected routes and compared their free energy profiles. The calculations considered two viable options for the underlying mechanism which differ in the order of the oxazoline ring formation and the aryl transfer steps. In our model transformation, it was found that the reaction generally features the aryl transfer-ring closing sequence and this sequence shows very limited sensitivity to the variation of the substituent of the reactants. On the basis of the mechanism the origin of the stereoselectivity is ascribed to the interaction of the Cu ion with the oxazoline oxygen driving the ring-closure step selectively.
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Affiliation(s)
- Tamás Károly Stenczel
- Török Ignác Secondary School, Gödöllő, Hungary, Present address: St Catharine's College, Cambridge CB2 1RL, UK
| | - Ádám Sinai
- ELTE "Lendület" Laboratory of Catalysis and Organic Synthesis, Eötvös Loránd University, Institute of Chemistry, Budapest, Hungary.,Servier Research Institute of Medicinal Chemistry, Záhony utca 7, H-1031, Budapest, Hungary
| | - Zoltán Novák
- ELTE "Lendület" Laboratory of Catalysis and Organic Synthesis, Eötvös Loránd University, Institute of Chemistry, Budapest, Hungary
| | - András Stirling
- Research Centre for Natural Sciences of the Hungarian Academy of Sciences, Institute of Organic Chemistry, Budapest, Hungary
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54
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Wang M, Chen S, Jiang X. Atom-Economical Applications of Diaryliodonium Salts. Chem Asian J 2018; 13:2195-2207. [DOI: 10.1002/asia.201800609] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/13/2018] [Indexed: 12/23/2022]
Affiliation(s)
- Ming Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Shihao Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
| | - Xuefeng Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical Process; School of Chemistry and Molecular Engineering; East China Normal University; 3663 North Zhongshan Road Shanghai 200062 P. R. China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
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55
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Purkait N, Kervefors G, Linde E, Olofsson B. Regiospecific N-Arylation of Aliphatic Amines under Mild and Metal-Free Reaction Conditions. Angew Chem Int Ed Engl 2018; 57:11427-11431. [PMID: 29956877 PMCID: PMC6120470 DOI: 10.1002/anie.201807001] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Indexed: 01/25/2023]
Abstract
A transition metal‐free N‐arylation of primary and secondary amines with diaryliodonium salts is presented. Both acyclic and cyclic amines are well tolerated, providing a large set of N‐alkyl anilines. The methodology is unprecedented among metal‐free methods in terms of amine scope, the ability to transfer both electron‐withdrawing and electron‐donating aryl groups, and efficient use of resources, as excess substrate or reagents are not required.
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Affiliation(s)
- Nibadita Purkait
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Gabriella Kervefors
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Erika Linde
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
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56
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Purkait N, Kervefors G, Linde E, Olofsson B. Regiospecific N-Arylation of Aliphatic Amines under Mild and Metal-Free Reaction Conditions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Nibadita Purkait
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Gabriella Kervefors
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Erika Linde
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Berit Olofsson
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
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57
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Kervefors G, Becker A, Dey C, Olofsson B. Metal-free formal synthesis of phenoxazine. Beilstein J Org Chem 2018; 14:1491-1497. [PMID: 30013676 PMCID: PMC6036965 DOI: 10.3762/bjoc.14.126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/06/2018] [Indexed: 12/16/2022] Open
Abstract
A transition metal-free formal synthesis of phenoxazine is presented. The key step of the sequence is a high-yielding O-arylation of a phenol with an unsymmetrical diaryliodonium salt to provide an ortho-disubstituted diaryl ether. This species was cyclized to acetylphenoxazine in moderate yield. The overall yield in the three-step sequence is 72% based on recovered diaryl ether. An interesting, unusually stable iodine(III) intermediate in the O-arylation was observed by NMR and could be converted to the product upon longer reaction time.
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Affiliation(s)
- Gabriella Kervefors
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Antonia Becker
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Chandan Dey
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
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58
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Boelke A, Finkbeiner P, Nachtsheim BJ. Atom-economical group-transfer reactions with hypervalent iodine compounds. Beilstein J Org Chem 2018; 14:1263-1280. [PMID: 29977394 PMCID: PMC6009129 DOI: 10.3762/bjoc.14.108] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/02/2018] [Indexed: 12/02/2022] Open
Abstract
Hypervalent iodine compounds, in particular aryl-λ3-iodanes, have been used extensively as electrophilic group-transfer reagents. Even though these compounds are superior substrates in terms of reactivity and stability, their utilization is accompanied by stoichiometric amounts of an aryl iodide as waste. This highly nonpolar side product can be tedious to separate from the desired target molecules and significantly reduces the overall atom efficiency of these transformations. In this short review, we want to give a brief summary of recently developed methods, in which this arising former waste is used as an additional reagent in cascade transformations to generate multiple substituted products in one step and with high atom efficiency.
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Affiliation(s)
- Andreas Boelke
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Peter Finkbeiner
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
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59
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Basu S, Sandtorv AH, Stuart DR. Imide arylation with aryl(TMP)iodonium tosylates. Beilstein J Org Chem 2018; 14:1034-1038. [PMID: 29977376 PMCID: PMC6009222 DOI: 10.3762/bjoc.14.90] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/27/2018] [Indexed: 02/01/2023] Open
Abstract
Herein, we describe the synthesis of N-aryl phthalimides by metal-free coupling of potassium phthalimide with unsymmetrical aryl(TMP)iodonium tosylate salts. The aryl transfer from the iodonium moiety occurs under electronic control with the electron-rich trimethoxyphenyl group acting as a competent dummy ligand. The yields of N-aryl phthalimides are moderate to high and the coupling reaction is compatible with electron-deficient and sterically encumbered aryl groups.
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Affiliation(s)
- Souradeep Basu
- Department of Chemistry, Portland State University, Portland OR 97201, United States
| | - Alexander H Sandtorv
- Department of Chemistry, Portland State University, Portland OR 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland OR 97201, United States
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60
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Mészáros Á, Székely A, Stirling A, Novák Z. Design of Trifluoroalkenyl Iodonium Salts for a Hypervalency‐Aided Alkenylation–Cyclization Strategy: Metal‐Free Construction of Aziridine Rings. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802347] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Ádám Mészáros
- ELTE “Lendület” Catalysis and Organic Synthesis Research GroupInstitute of ChemistryEötvös UniversityFaculty of Science Pázmány Péter stny. 1/A 1117 Budapest Hungary
| | - Anna Székely
- ELTE “Lendület” Catalysis and Organic Synthesis Research GroupInstitute of ChemistryEötvös UniversityFaculty of Science Pázmány Péter stny. 1/A 1117 Budapest Hungary
- Current address: Max Planck Institut für Kohlenforschung Kaiser-Wilhelm-Platz 2 45470 Mülheim an der Ruhr Germany
| | - András Stirling
- Theoretical Chemistry Research GroupInstitute of Organic ChemistryResearch Centre for Natural Sciences Magyar tudósok körútja 2. Budapest Hungary
| | - Zoltán Novák
- ELTE “Lendület” Catalysis and Organic Synthesis Research GroupInstitute of ChemistryEötvös UniversityFaculty of Science Pázmány Péter stny. 1/A 1117 Budapest Hungary
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61
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Mészáros Á, Székely A, Stirling A, Novák Z. Design of Trifluoroalkenyl Iodonium Salts for a Hypervalency-Aided Alkenylation-Cyclization Strategy: Metal-Free Construction of Aziridine Rings. Angew Chem Int Ed Engl 2018; 57:6643-6647. [PMID: 29660841 DOI: 10.1002/anie.201802347] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/01/2018] [Indexed: 12/19/2022]
Abstract
The synthesis of fluorinated compounds and their use as pharmaceutical ingredients or synthetic building blocks have been in the focus of chemical and medicinal research. However, the efficient synthesis of trifluoromethylated nitrogen heterocycles is sometimes challenging. Herein, we disclose a simple aziridination process that relies on the use of amines and novel alkenyl iodonium reagents for the synthesis of strained, trifluoromethylated heterocycles. With the utilization of a newly designed and bench-stable but highly reactive hypervalent alkenyl iodonium species, these three-membered-ring heterocyclic compounds can be efficiently constructed from simple amines under mild conditions in the absence of transition-metal catalysts. The special reactivity of the new trifluoropropenyl synthon towards nucleophilic centers could be exploited in more general cyclization and alkenylation reactions in the future.
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Affiliation(s)
- Ádám Mészáros
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Faculty of Science, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
| | - Anna Székely
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Faculty of Science, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary.,Current address: Max Planck Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 2, 45470, Mülheim an der Ruhr, Germany
| | - András Stirling
- Theoretical Chemistry Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences, Magyar tudósok körútja 2., Budapest, Hungary
| | - Zoltán Novák
- ELTE "Lendület" Catalysis and Organic Synthesis Research Group, Institute of Chemistry, Eötvös University, Faculty of Science, Pázmány Péter stny. 1/A, 1117, Budapest, Hungary
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62
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Bugaenko DI, Karchava AV, Yurovskaya MA. Arynes, diaryliodonium salts and azine N-oxides in transition metal-free electrophilic N-arylation. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4781] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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63
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Sasaki T, Moriyama K, Togo H. One-pot preparation of 4-aryl-3-bromocoumarins from 4-aryl-2-propynoic acids with diaryliodonium salts, TBAB, and Na 2S 2O 8. Beilstein J Org Chem 2018; 14:345-353. [PMID: 29507639 PMCID: PMC5815302 DOI: 10.3762/bjoc.14.22] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 01/26/2018] [Indexed: 02/01/2023] Open
Abstract
Various 4-aryl-3-bromocoumarins were smoothly obtained in moderate yields in one pot by treating 3-aryl-2-propynoic acids with diaryliodonium triflates and K2CO3 in the presence of CuCl, followed by the reaction with tetrabutylammonium bromide (TBAB) and Na2S2O8. The obtained 3-bromo-4-phenylcoumarin was transformed into 4-phenylcoumarin derivatives bearing C-H, C-S, C-N, and C-C bonds at 3-position.
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Affiliation(s)
- Teppei Sasaki
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan.,Molecular Chirality Research Center, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
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64
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Masumoto Y, Miyamoto K, Iuchi T, Ochiai M, Hirano K, Saito T, Wang C, Uchiyama M. Mechanistic Study on Aryl-Exchange Reaction of Diaryl-λ 3-iodane with Aryl Iodide. J Org Chem 2018; 83:289-295. [PMID: 29183123 DOI: 10.1021/acs.joc.7b02701] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Because of its hyper-leaving ability, as well as its strong oxidizing ability, diaryl(triflato)-λ3-iodane transfers one of the aryl groups to iodoarenes simply upon gentle heating (>85 °C) in nonpolar solvents. We have performed an in-depth mechanistic study of this unusual aryl transfer reaction. A combination of experimental (product analysis, kinetic study, and substituent effects) and density functional theoretical approaches revealed that the reaction proceeds through a concerted bimolecular transition state, in which ipso-carbon binds loosely to both iodine centers. We also evaluated electronic effects on the thermodynamic stability of diaryl-λ3-iodanes.
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Affiliation(s)
- Yui Masumoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan.,Elements Chemistry Laboratory, RIKEN, and Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , Wako-shi, Saitama 351-0198, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takuto Iuchi
- Graduate School of Pharmaceutical Sciences, Tokushima University , 1-78 Shomachi, Tokushima 770-8505, Japan
| | - Masahito Ochiai
- Graduate School of Pharmaceutical Sciences, Tokushima University , 1-78 Shomachi, Tokushima 770-8505, Japan
| | - Keiichi Hirano
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuo Saito
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Chao Wang
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo , 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan.,Elements Chemistry Laboratory, RIKEN, and Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science (CSRS) , Wako-shi, Saitama 351-0198, Japan
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65
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Tian ZY, Hu YT, Teng HB, Zhang CP. Application of arylsulfonium salts as arylation reagents. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.12.005] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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66
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Villo P, Kervefors G, Olofsson B. Transition metal-free, chemoselective arylation of thioamides yielding aryl thioimidates orN-aryl thioamides. Chem Commun (Camb) 2018; 54:8810-8813. [DOI: 10.1039/c8cc04795b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highlyS-selective arylation of thioamides provided efficient access to aryl thioimidates.
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Affiliation(s)
- Piret Villo
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Sweden
- Institute of Technology
| | - Gabriella Kervefors
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Sweden
| | - Berit Olofsson
- Department of Organic Chemistry
- Arrhenius Laboratory
- Stockholm University
- Sweden
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67
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Shang W, Mou ZD, Tang H, Zhang X, Liu J, Fu Z, Niu D. Site-Selective O-Arylation of Glycosides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201710310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Weidong Shang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ze-Dong Mou
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hua Tang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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68
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Shang W, Mou ZD, Tang H, Zhang X, Liu J, Fu Z, Niu D. Site-Selective O-Arylation of Glycosides. Angew Chem Int Ed Engl 2017; 57:314-318. [PMID: 29125221 DOI: 10.1002/anie.201710310] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Indexed: 02/05/2023]
Affiliation(s)
- Weidong Shang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ze-Dong Mou
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hua Tang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital and School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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69
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Shi WM, Li XH, Liang C, Mo DL. Base-Free Selective O
-Arylation and Sequential [3,3]-Rearrangement of Amidoximes with Diaryliodonium Salts: Synthesis of 2-Substituted Benzoxazoles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700906] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Wei-Min Shi
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Xiao-Hua Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China; School of Chemistry and Pharmaceutical Sciences; Guangxi Normal University; 15 Yu Cai Road Guilin 541004 People's Republic of China
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70
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Stridfeldt E, Lindstedt E, Reitti M, Blid J, Norrby P, Olofsson B. Competing Pathways in O-Arylations with Diaryliodonium Salts: Mechanistic Insights. Chemistry 2017; 23:13249-13258. [PMID: 28792102 PMCID: PMC5639379 DOI: 10.1002/chem.201703057] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Indexed: 01/11/2023]
Abstract
A mechanistic study of arylations of aliphatic alcohols and hydroxide with diaryliodonium salts, to give alkyl aryl ethers and diaryl ethers, has been performed using experimental techniques and DFT calculations. Aryne intermediates have been trapped, and additives to avoid by-product formation originating from arynes have been found. An alcohol oxidation pathway was observed in parallel to arylation; this is suggested to proceed by an intramolecular mechanism. Product formation pathways via ligand coupling and arynes have been compared, and 4-coordinated transition states were found to be favored in reactions with alcohols. Furthermore, a novel, direct nucleophilic substitution pathway has been identified in reactions with electron-deficient diaryliodonium salts.
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Affiliation(s)
- Elin Stridfeldt
- Department of Organic ChemistryArrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Erik Lindstedt
- Department of Organic ChemistryArrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Marcus Reitti
- Department of Organic ChemistryArrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Jan Blid
- Department of Organic ChemistryArrhenius LaboratoryStockholm University106 91StockholmSweden
| | - Per‐Ola Norrby
- Pharmaceutical SciencesAstraZeneca Gothenburg431 83MölndalSweden
| | - Berit Olofsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm University106 91StockholmSweden
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71
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Aradi K, Mészáros Á, Tóth BL, Vincze Z, Novák Z. Copper-Catalyzed N-Arylation of Nitroenamines with Diaryliodonium Salts. J Org Chem 2017; 82:11752-11764. [DOI: 10.1021/acs.joc.7b01591] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Klára Aradi
- Department
of Chemistry, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
| | - Ádám Mészáros
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
| | - Balázs L. Tóth
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
| | - Zoltán Vincze
- Department
of Chemistry, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
| | - Zoltán Novák
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
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72
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Stuart DR. Aryl Transfer Selectivity in Metal-Free Reactions of Unsymmetrical Diaryliodonium Salts. Chemistry 2017; 23:15852-15863. [PMID: 28793179 DOI: 10.1002/chem.201702732] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Indexed: 11/07/2022]
Abstract
Aromatic rings are found in a wide variety of products, including pharmaceuticals, agrochemicals, and functional materials. Diaryliodonium salts are new reagents used to transfer aryl groups under both metal-free and metal-catalyzed reactions and thereby synthesize arene-containing compounds. This minireview focuses on recent studies in selective aryl transfer reactions from unsymmetrical diaryliodonium salts under metal-free conditions. Reactions reported from 2007 to 2017, which represents a period of significant growth in diaryliodonium salt chemistry, are presented and organized by the type of reactive intermediate formed in the reaction. Specifically, reactions involving λ3 -iodane, λ3 -iodane radical anions, aryl radicals, and arynes are discussed. Chemoselectivity trends in aryl transfer are compared and contrasted across reaction intermediates and translation to potential auxiliaries are posited.
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Affiliation(s)
- David R Stuart
- Department of Chemistry, Portland State University, 1719 SW 10thAve, Portland, OR, 97201, USA
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73
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Lindstedt E, Reitti M, Olofsson B. One-Pot Synthesis of Unsymmetric Diaryliodonium Salts from Iodine and Arenes. J Org Chem 2017; 82:11909-11914. [PMID: 28809562 DOI: 10.1021/acs.joc.7b01652] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first synthesis of unsymmetric diaryliodonium salts directly from iodine and arenes is presented. The methodology provides diaryliodonium salts with the trimethoxyphenyl (TMP) moiety as dummy group. The protocol avoids the customary use of iodoarenes, which can be both expensive and toxic. Excess reagents are not required, and the reactions are performed under mild conditions. O-Arylations with these TMP salts were demonstrated to be highly chemoselective.
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Affiliation(s)
- Erik Lindstedt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Marcus Reitti
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
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74
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Seidl TL, Stuart DR. An Admix Approach To Determine Counter Anion Effects on Metal-Free Arylation Reactions with Diaryliodonium Salts. J Org Chem 2017; 82:11765-11771. [PMID: 28800238 DOI: 10.1021/acs.joc.7b01599] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A method to determine the effect of counter anions in metal-free arylation reactions of diaryliodonium salts is described. This approach avoids the independent synthesis of individual diaryliodonium salts and potentially enables assessment of a large number of different counter anions, including those that are synthetically challenging to install. Diaryliodonium tosylate salts serve as a general precursor for this approach, and an azide arylation reaction was used to develop this strategy. Further optimization and representative scope of azide arylation is demonstrated in yields that range from 74-95% (89% average). The use of this method as a screening tool has also been validated with arylation reactions of three different nucleophiles employing diphenyliodonium tosylate.
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Affiliation(s)
- Thomas L Seidl
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
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75
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Sasaki T, Moriyama K, Togo H. Preparation of 3-Iodoquinolines from N-Tosyl-2-propynylamines with Diaryliodonium Triflate and N-Iodosuccinimide. J Org Chem 2017; 82:11727-11734. [PMID: 28718287 DOI: 10.1021/acs.joc.7b01433] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
4-Aryl and 4-alkyl substituted 3-iodoquinolines could be smoothly obtained in one pot by treating N-tosyl-2-propynylamines with diaryliodonium triflate in the presence of K3PO4 and a catalytic amount of CuCl at room temperature, followed by treatment with N-iodosuccinimide and BF3·OEt2 at 0 °C, and then NaOH in methanol solution. The product, 3-iodo-4-phenylquinoline was smoothly transformed into 4-phenylquinoline with zinc; 4-phenyl-3-toluenesulfenylquinoline with toluenethiol, K2CO3, and CuI; 4-phenyl-3-phenylethynylquinoline with the Sonogashira coupling reaction; 4-phenyl-3-styrylquinoline with the Heck coupling reaction; 3,4-diphenylquinoline with the Suzuki-Miyaura coupling reaction; 2-cyclohexyl-3-iodo-4-phenylquinoline with cyclohexanecarboxylic acid, Ag2CO3, and K2S2O8; and 3-iodo-2-(2',5'-dioxan-1'-yl)-4-phenylquinoline with benzoyl peroxide in dioxane.
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Affiliation(s)
- Teppei Sasaki
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
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76
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Lee YS, Chun JH, Hodošček M, Pike VW. Crystal Structures of Diaryliodonium Fluorides and Their Implications for Fluorination Mechanisms. Chemistry 2017; 23:4353-4363. [PMID: 28145069 PMCID: PMC5687088 DOI: 10.1002/chem.201604803] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/22/2016] [Indexed: 12/30/2022]
Abstract
The radiofluorination of diaryliodonium salts is of value for producing radiotracers for positron emission tomography. We report crystal structures for two diaryliodonium fluorides. Whereas diphenyliodonium fluoride (1 a) exists as a tetramer bridged by four fluoride ions, 2-methylphenyl(phenyl)iodonium fluoride (2 a) forms a fluoride-bridged dimer that is further halogen bonded to two other monomers. We discuss the topological relationships between the two and their implications for fluorination in solution. Both radiofluorination and NMR spectroscopy show that thermolysis of 2 a gives 2-fluorotoluene and fluorobenzene in a 2 to 1 ratio that is in good agreement with the ratio observed from the radiofluorination of 2-methylphenyl(phenyl)iodonium chloride (2 b). The constancy of the product ratio affirms that the fluorinations occur via the same two rapidly interconverting transition states whose energy difference dictates chemoselectivity. From quantum chemical studies with density functional theory we attribute the "ortho-effect" to the favorable electrostatic interaction between the incoming fluoride and the o-methyl in the transition state. By utilizing the crystal structures of 1 a and 2 a, the mechanisms of fluoroarene formation from diaryliodonium fluorides in their monomeric, homodimeric, heterodimeric, and tetrameric states were also investigated. We propose that oligomerization energy dictates whether the fluorination occurs through a monomeric or an oligomeric pathway.
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Affiliation(s)
- Yong-Sok Lee
- Center for Molecular Modeling, Office of Intramural Research, Center for Information Technology, National Institutes of Health, Building 12A, Rm 2049, Bethesda, MD, 20892, USA
| | - Joong-Hyun Chun
- Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Rm. B3C346A, 10 Center Drive, Bethesda, MD, 20892, USA
- Present address: Department of Nuclear Medicine, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, 03722, South Korea
| | - Milan Hodošček
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
- National Institute of Chemistry, Ljubljana, Slovenia
| | - Victor W Pike
- Molecular Imaging Branch, National Institute of Mental Health, National Institutes of Health, Rm. B3C346A, 10 Center Drive, Bethesda, MD, 20892, USA
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77
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Yin K, Zhang R. Transition-Metal-Free Direct C-H Arylation of Quinoxalin-2(1H)-ones with Diaryliodonium Salts at Room Temperature. Org Lett 2017; 19:1530-1533. [PMID: 28300414 DOI: 10.1021/acs.orglett.7b00310] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A method of synthesizing 3-arylquinoxalin-2(1H)-ones using diaryliodonium tetrafluoroborates under mild conditions is described. This protocol has a wide substrate scope and enables direct C-H functionalization. The synthetic potential of this coupling was explored using a range of readily accessible diaryliodonium salts and quinoxalin-2(1H)-ones.
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Affiliation(s)
- Kun Yin
- School of Chemical Science and Engineering, Tongji University , 1239 Siping Road, Shanghai 200092, China
| | - Ronghua Zhang
- School of Chemical Science and Engineering, Tongji University , 1239 Siping Road, Shanghai 200092, China.,Shanghai Key Lab of Chemical Assessment and Sustainability, Tongji University , 1239 Siping Road, Shanghai 200092, China
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78
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Wu SY, Ma XP, Liang C, Mo DL. Synthesis of N-Aryl Oxindole Nitrones through a Metal-Free Selective N-Arylation Process. J Org Chem 2017; 82:3232-3238. [DOI: 10.1021/acs.joc.6b02774] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Si-Yi Wu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Xiao-Pan Ma
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Cui Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
| | - Dong-Liang Mo
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 15 Yu Cai Road, Guilin 541004, China
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79
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Liu C, Yi JC, Dai LX, You SL. Copper(I)-Catalyzed Cascade Dearomatization of Tryptophols with 3-Indolylphenyliodonium Salts. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201600626] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Chuan Liu
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Ji-Cheng Yi
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Li-Xin Dai
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 China
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80
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Székely A, Péter Á, Aradi K, Tolnai GL, Novák Z. Gold-Catalyzed Direct Alkynylation of Azulenes. Org Lett 2017; 19:954-957. [DOI: 10.1021/acs.orglett.7b00259] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anna Székely
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Eötvös Loránd University, Institute of Chemistry Pázmány Péter
stny. 1/A, Budapest, 1117, Hungary
| | - Áron Péter
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Eötvös Loránd University, Institute of Chemistry Pázmány Péter
stny. 1/A, Budapest, 1117, Hungary
| | - Klára Aradi
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Eötvös Loránd University, Institute of Chemistry Pázmány Péter
stny. 1/A, Budapest, 1117, Hungary
| | - Gergely L. Tolnai
- Eötvös Loránd University, Institute of Chemistry, Pázmány Péter
stny. 1/A, Budapest, 1117, Hungary
| | - Zoltán Novák
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Eötvös Loránd University, Institute of Chemistry Pázmány Péter
stny. 1/A, Budapest, 1117, Hungary
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81
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Carreras V, Sandtorv AH, Stuart DR. Synthesis of Aryl(2,4,6-trimethoxyphenyl)iodonium Trifluoroacetate Salts. J Org Chem 2017; 82:1279-1284. [PMID: 28001410 DOI: 10.1021/acs.joc.6b02811] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The direct synthesis of aryl(2,4,6-trimethoxyphenyl)iodonium trifluoroacetate salts from aryl iodides is described. Stoichiometric quantities of trifluoroacetic acid and trimethoxybenzene are used as the counteranion and auxiliary precursors, respectively, under oxidizing conditions. The reaction occurs at mild temperature, is broad in scope, and does not require a separate anion exchange step to install the trifluoroacetate group. The intermediacy of two distinct dicarboxy aryl-λ3-iodanes is hypothesized in the mechanism.
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Affiliation(s)
- Virginie Carreras
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
| | - Alexander H Sandtorv
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
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82
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Kovács S, Tóth BL, Borsik G, Bihari T, May NV, Stirling A, Novák Z. Directortho-Trifluoroethylation of Aromatic Ureas by Palladium Catalyzed C-H activation: A Missing Piece of Aromatic Substitutions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601136] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Szabolcs Kovács
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Institute of Chemistry.; Eötvös Loránd University; Pázmány Péter stny. 1/a Budapest 1117 Hungary
| | - Balázs L. Tóth
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Institute of Chemistry.; Eötvös Loránd University; Pázmány Péter stny. 1/a Budapest 1117 Hungary
| | - Gábor Borsik
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Institute of Chemistry.; Eötvös Loránd University; Pázmány Péter stny. 1/a Budapest 1117 Hungary
| | - Tamás Bihari
- Research Centre for Natural Sciences of the; Hungarian Academy of Sciences, Institute of Organic Chemistry; Magyar Tudósok körútja 2. H- 1117 Budapest Hungary
| | - Nóra V. May
- Research Centre for Natural Sciences of the; Hungarian Academy of Sciences, Institute of Organic Chemistry; Magyar Tudósok körútja 2. H- 1117 Budapest Hungary
| | - András Stirling
- Research Centre for Natural Sciences of the; Hungarian Academy of Sciences, Institute of Organic Chemistry; Magyar Tudósok körútja 2. H- 1117 Budapest Hungary
| | - Zoltán Novák
- MTA-ELTE “Lendület” Catalysis and Organic Synthesis Research Group; Institute of Chemistry.; Eötvös Loránd University; Pázmány Péter stny. 1/a Budapest 1117 Hungary
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83
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Sandtorv AH, Stuart DR. Metal-free Synthesis of Aryl Amines: Beyond Nucleophilic Aromatic Substitution. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610086] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - David R. Stuart
- Department of Chemistry; Portland State University; Portland OR 97201 USA
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84
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Sandtorv AH, Stuart DR. Metal-free Synthesis of Aryl Amines: Beyond Nucleophilic Aromatic Substitution. Angew Chem Int Ed Engl 2016; 55:15812-15815. [PMID: 27862773 DOI: 10.1002/anie.201610086] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Indexed: 11/07/2022]
Abstract
A mild and metal-free approach to C-N coupling is described that employs diaryliodonium salt electrophiles and secondary aliphatic amine nucleophiles. This reaction results in direct ipso-substitution of the iodonium moiety and unsymmetrical aryl(TMP)iodonium salts are primarily employed. Moreover, arene substituents and substitution patterns that currently pose a challenge to classical metal-free methods are accommodated and the alicyclic amine nucleophiles used here are unprecedented in other contemporary metal-free C-N coupling reactions.
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Affiliation(s)
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland, OR, 97201, USA
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85
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Noël-Duchesneau L, Lagadic E, Morlet-Savary F, Lohier JF, Chataigner I, Breugst M, Lalevée J, Gaumont AC, Lakhdar S. Metal-Free Synthesis of 6-Phosphorylated Phenanthridines: Synthetic and Mechanistic Insights. Org Lett 2016; 18:5900-5903. [DOI: 10.1021/acs.orglett.6b02983] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ludovik Noël-Duchesneau
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen 14000 France
| | - Elodie Lagadic
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen 14000 France
| | - Fabrice Morlet-Savary
- Institut de Science des Matériaux de Mulhouse IS2M - UMR CNRS 7361 - UHA, 15, rue Jean Starcky, Mulhouse 68057 Cedex, France
| | - Jean-François Lohier
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen 14000 France
| | - Isabelle Chataigner
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Martin Breugst
- Department
für Chemie, Universität zu Köln, Greinstraße
4, 50939 Köln, Germany
| | - Jacques Lalevée
- Institut de Science des Matériaux de Mulhouse IS2M - UMR CNRS 7361 - UHA, 15, rue Jean Starcky, Mulhouse 68057 Cedex, France
| | - Annie-Claude Gaumont
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen 14000 France
| | - Sami Lakhdar
- Normandie Université, LCMT, ENSICAEN, UNICAEN, CNRS, 6, Boulevard Maréchal Juin, Caen 14000 France
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86
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Stridfeldt E, Seemann A, Bouma MJ, Dey C, Ertan A, Olofsson B. Synthesis, Characterization and Unusual Reactivity of Vinylbenziodoxolones-Novel Hypervalent Iodine Reagents. Chemistry 2016; 22:16066-16070. [DOI: 10.1002/chem.201603955] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Elin Stridfeldt
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Alexandra Seemann
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Marinus J. Bouma
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Chandan Dey
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Anne Ertan
- Department of Materials and Environmental Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Berit Olofsson
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
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87
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Tolnai GL, Nilsson UJ, Olofsson B. Efficient O-Functionalization of Carbohydrates with Electrophilic Reagents. Angew Chem Int Ed Engl 2016; 55:11226-30. [PMID: 27528184 PMCID: PMC5113792 DOI: 10.1002/anie.201605999] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 07/12/2016] [Indexed: 12/11/2022]
Abstract
Novel methodology for O-functionalization of carbohydrate derivatives has been established using bench-stable and easily prepared iodonium(III) reagents. Both electron-withdrawing and electron-donating aryl groups were introduced under ambient conditions and without precautions to exclude air or moisture. Furthermore, the approach was extended both to full arylation of cyclodextrin, and to trifluoroethylation of carbohydrate derivatives. This is the first general approach to introduce traditionally non-electrophilic groups into any of the OH groups around the sugar backbone. The methodology will be useful both in synthetic organic chemistry and biochemistry, as important functional groups can be incorporated under simple and robust reaction conditions in a fast and efficient manner.
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Affiliation(s)
- Gergely L Tolnai
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Ulf J Nilsson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, 22100, Lund, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden.
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88
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Lindstedt E, Stridfeldt E, Olofsson B. Mild Synthesis of Sterically Congested Alkyl Aryl Ethers. Org Lett 2016; 18:4234-7. [PMID: 27586361 DOI: 10.1021/acs.orglett.6b01975] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient and transition-metal-free method is presented to access tertiary alkyl aryl ethers by arylation of tertiary alcohols with ortho-substituted diaryliodonium salts. The scope covers cyclic and acyclic aliphatic, benzylic, allylic, and propargylic tertiary alcohols as well as primary and secondary fluorinated alcohols. The methodology gives access to alkyl aryl ethers of previously unprecedented steric congestion. Furthermore, the versatility of the developed procedure was demonstrated by arylation of the pro-drug mestranol.
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Affiliation(s)
- Erik Lindstedt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Elin Stridfeldt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University , SE-106 91 Stockholm, Sweden
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89
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Tolnai GL, Nilsson UJ, Olofsson B. Efficient O-Functionalization of Carbohydrates with Electrophilic Reagents. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605999] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Gergely L. Tolnai
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Ulf J. Nilsson
- Centre for Analysis and Synthesis; Department of Chemistry; Lund University; 22100 Lund Sweden
| | - Berit Olofsson
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
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90
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Jung SH, Sung DB, Park CH, Kim WS. Copper-Catalyzed N-Arylation of 2-Pyridones Employing Diaryliodonium Salts at Room Temperature. J Org Chem 2016; 81:7717-24. [PMID: 27484240 DOI: 10.1021/acs.joc.6b01415] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new and mild synthetic approach for the N-arylation of 2-pyridones with diaryliodonium salts has been developed. Most reactions proceed readily at room temperature in the presence of 10 mol % of copper chloride. As a result, a wide range of N-arylpyridine-2-ones were synthesized in yields of 23% to 99%. With this method, an antifibrotic drug, Pirfenidone, was successfully synthesized in 99% yield within 30 min at room temperature.
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Affiliation(s)
- Seo-Hee Jung
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, South Korea
| | - Dan-Bi Sung
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, South Korea
| | - Cho-Hee Park
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, South Korea
| | - Won-Suk Kim
- Department of Chemistry and Nano Science, Ewha Womans University , Seoul 120-750, South Korea
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91
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Reitti M, Villo P, Olofsson B. One-Pot C-H Functionalization of Arenes by Diaryliodonium Salts. Angew Chem Int Ed Engl 2016; 55:8928-32. [PMID: 27272891 PMCID: PMC5089574 DOI: 10.1002/anie.201603175] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 04/29/2016] [Indexed: 01/28/2023]
Abstract
A transition-metal-free, mild, and highly regioselective synthesis of nitroarenes from arenes has been developed. The products are obtained in a sequential one-pot reaction by nitration of iodine(III) reagents with two carbon ligands, which are formed in situ from iodine(I). This novel concept has been extended to formation of aryl azides, and constitutes an important step towards catalytic reactions with these hypervalent iodine reagents. An efficient nitration of isolated diaryliodonium salts has also been developed, and the mechanism is proposed to proceed by a [2,2] ligand coupling pathway.
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Affiliation(s)
- Marcus Reitti
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91, Stockholm, Sweden
| | - Piret Villo
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91, Stockholm, Sweden.
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92
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Reitti M, Villo P, Olofsson B. One-Pot C−H Functionalization of Arenes by Diaryliodonium Salts. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603175] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Marcus Reitti
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Piret Villo
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory; Stockholm University; 106 91 Stockholm Sweden
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93
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Wang G, Chen C, Peng J. Copper-catalyzed intramolecular aryl-bicyclization of diynes with diaryliodonium salts via vinyl cations. Chem Commun (Camb) 2016; 52:10277-80. [PMID: 27470611 DOI: 10.1039/c6cc05735g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel protocol for the synthesis of polycyclic compounds from linear diynes and diaryliodonium salts has been realized.
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Affiliation(s)
- Guohua Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
| | - Jing Peng
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing
- China
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