1
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Yamaguchi H, Takahashi F, Kurogi T, Yorimitsu H. Reductive anti-Dizincation of Arylacetylenes. Chem Asian J 2024; 19:e202400384. [PMID: 38647096 DOI: 10.1002/asia.202400384] [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: 04/05/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 04/25/2024]
Abstract
Arylacetylenes undergo anti-1,2-dizincation to afford trans-1,2-dizincioalkenes. The process employs sodium dispersion as a reducing agent and zinc chloride TMEDA complex as a reduction-resistant zinc electrophile. This reductive anti-dizincation contrasts with the conventional additive syn-dimetalation like silylzincation. The resulting dizincated alkenes undergo the cross-coupling to yield multi-substituted alkenes stereoselectively.
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Affiliation(s)
- Haruka Yamaguchi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Fumiya Takahashi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Takashi Kurogi
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
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2
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Chandrasekaran R, Selvam K, Rajeshkumar T, Chinnusamy T, Maron L, Rasappan R. Anti-Selective Carbosilylation: Nickel-Catalyzed Multicomponent Reaction of Solid Me 3SiZnI. Angew Chem Int Ed Engl 2024; 63:e202318689. [PMID: 38547324 DOI: 10.1002/anie.202318689] [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: 12/05/2023] [Indexed: 04/25/2024]
Abstract
The stereodefined and highly substituted vinylsilanes are essential building blocks for constructing complex organic molecules. Transition metal-mediated silylmetalation of alkynes was developed to overcome the limitations of conventional hydrosilylations; however, a very limited study was carried out to utilize transient vinylmetal species in cross-coupling reactions. Moreover, they produce syn-adduct, and the anti-selective cross-coupling is still unknown and highly desired. Silylzinc reagents are highly functional group tolerant, however, their synthesis from pyrophoric silyllithium and dissolved lithium salts hampers cross-coupling reactions. Our novel solid silylzinc reagents circumvent these constraints are employed in the anti-selective synthesis of vinylsilanes via a multi-component reaction involving Me3SiZnI, terminal alkynes, and activated alkyl halides. An intensive computational and experimental investigation of the mechanism reveals an equilibrium between the intermediate syn- and anti-adducts; the greater barrier at the single electron reduction of alkyl halides and the thermodynamic stability of the Ni(III) adduct determine the anti-selectivity.
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Affiliation(s)
- Revathi Chandrasekaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Keerthika Selvam
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Thayalan Rajeshkumar
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Tamilselvi Chinnusamy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
| | - Laurent Maron
- Laboratoire de Physique et Chimie des Nano-objets, Institut National des Sciences Appliquées, 31077, Toulouse, Cedex 4, France
| | - Ramesh Rasappan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala, India
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3
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Guégan F, Chemla F, Ferreira F, Gérard H, Perez-Luna A, Halbert S. Trans-Concerted Addition to Alkynes: the case of Ynamide Silylzincation. Chemistry 2024:e202401751. [PMID: 38808477 DOI: 10.1002/chem.202401751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
An original concerted antarafacial mechanism for the addition of diorganosilyl-zinc reagents across the C-C triple bond of ynamides is computationally investigated using DFT calculations. This concerted mechanism, leading to a trans-product in only one step, results in the formation of a Si-C and a Zn-C σ-bond on opposite sides of the π-system. We demonstrate that the mechanism going through a η2-vinyl intermediate and the proposal of a radical chain pathway are energetically unsustainable. The retained concerted antarafacial pathway is tested on experimental selectivities: the regioselectivity, in favor of the silyl β-addition in ynamide, and stereoselectivity, which is cis- with (Me2PhSi)2Zn but trans- with [(Me3Si)3Si]2Zn, are well reproduced by DFT calculations. The regio- and stereoselectivity are discussed using the activation strain model and a chemical bonding analysis.
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Affiliation(s)
- Frédéric Guégan
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT, F-75005, Paris, France
- Present Address: Institut de Chimie des Milieux et matériaux de Poitiers, CNRS, Université de Poitiers, 1 rue Marcel Doré, 86073, Poitiers, France
| | - Fabrice Chemla
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005, Paris, France
| | - Franck Ferreira
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005, Paris, France
| | - Hélène Gérard
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT, F-75005, Paris, France
| | - Alejandro Perez-Luna
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, IPCM, F-75005, Paris, France
| | - Stéphanie Halbert
- Sorbonne Université, CNRS, Laboratoire de Chimie Théorique, LCT, F-75005, Paris, France
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4
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Xiao Y, Tang L, Xu TT, Sheng JYH, Zhou Z, Yue L, Wang G, Oestreich M, Feng JJ. Atom-economic and stereoselective catalytic synthesis of fully substituted enol esters/carbonates of amides in acyclic systems enabled by boron Lewis acid catalysis. Chem Sci 2023; 14:5608-5618. [PMID: 37265723 PMCID: PMC10231430 DOI: 10.1039/d3sc01394d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 04/21/2023] [Indexed: 06/03/2023] Open
Abstract
Carboacyloxylation of internal alkynes is emerging as a powerful and straightforward strategy for enol ester synthesis. However, the reported examples come with limitations, including the utilization of noble metal catalysts, the control of regio- and Z/E selectivity, and an application in the synthesis of enol carbonates. Herein, a boron Lewis acid-catalyzed intermolecular carboacyloxylation of ynamides with esters to access fully substituted acyclic enol esters in high yield with generally high Z/E selectivity (up to >96 : 4) is reported. Most importantly, readily available allylic carbonates are also compatible with this difunctionalization reaction, representing an atom-economic, catalytic and stereoselective protocol for the construction of acyclic β,β-disubstituted enol carbonates of amides for the first time. The application of the carboacyloxylation products to decarboxylative allylations provided a ready access to enantioenriched α-quaternary amides. Moreover, experimental studies and theoretical calculations were performed to illustrate the reaction mechanism and rationalize the stereochemistry.
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Affiliation(s)
- Yuanjiu Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University Changsha Hunan 410082 P. R. China
| | - Lei Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University Changsha Hunan 410082 P. R. China
| | - Tong-Tong Xu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University Changsha Hunan 410082 P. R. China
| | - Jiang-Yi-Hui Sheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University Changsha Hunan 410082 P. R. China
| | - Zhongyan Zhou
- College of Biology, Mass Spectrometry Lab of Bio-Chemistry, Hunan University P. R. China
| | - Lei Yue
- College of Biology, Mass Spectrometry Lab of Bio-Chemistry, Hunan University P. R. China
| | - Guoqiang Wang
- Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 P. R. China
| | - Martin Oestreich
- Institut für Chemie, Technische Universität Berlin Strasse des 17. Juni 115 10623 Berlin Germany https://www.tu.berlin/en/organometallics
| | - Jian-Jun Feng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University Changsha Hunan 410082 P. R. China
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5
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Yepes P, Suárez-Sobrino ÁL, Rodríguez MA, Ballesteros A. Silylium-Catalyzed Regio- and Stereoselective Carbosilylation of Ynamides with Allylic Trimethylsilanes. Org Lett 2023; 25:1020-1024. [PMID: 36749888 PMCID: PMC9942199 DOI: 10.1021/acs.orglett.3c00221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The regio- and stereoselective carbosilylation of tosylynamides with allylic trimethylsilanes takes place under mild conditions in the presence of catalytic TMSNTf2 or HNTf2 to give (Z)-α-allyl-β-trimethylsilylenamides with good yields. Theoretical calculations show the activation of the C-C triple bond of the ynamides by the trimethylsilylium ion and formation of a β-trimethylsilylketenimonium cation. Further transformations of the products demonstrate the synthetic utility of this reaction.
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Affiliation(s)
- Paz Yepes
- Departamento
de Química Orgánica e Inorgánica, Instituto Universitario
de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain
| | - Ángel L. Suárez-Sobrino
- Departamento
de Química Orgánica e Inorgánica, Instituto Universitario
de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain
| | - Miguel A. Rodríguez
- Departamento
de Química, Centro de Investigación en Síntesis
Orgánica, Universidad de la Rioja, Madre de Dios, 51, 26006 Logroño, Spain
| | - Alfredo Ballesteros
- Departamento
de Química Orgánica e Inorgánica, Instituto Universitario
de Química Organometálica “Enrique Moles”, Universidad de Oviedo, Julián Clavería, 8, 33006 Oviedo, Spain,
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6
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Mutra MR, Wang JJ. Photoinduced ynamide structural reshuffling and functionalization. Nat Commun 2022; 13:2345. [PMID: 35487916 PMCID: PMC9055057 DOI: 10.1038/s41467-022-30001-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 04/05/2022] [Indexed: 12/11/2022] Open
Abstract
The radical chemistry of ynamides has recently drawn the attention of synthetic organic chemists to the construction of various N-heterocyclic compounds. Nevertheless, the ynamide-radical chemistry remains a long-standing challenge for chemists due to its high reactivity, undesirable byproducts, severe inherent regio- and chemoselective problems. Importantly, the ynamide C(sp)-N bond fission remains an unsolved challenge. In this paper, we observe Photoinduced radical trigger regio- and chemoselective ynamide bond fission, structural reshuffling and functionalization of 2-alkynyl-ynamides to prepare synthetically inaccessible/challenging chalcogen-substituted indole derivatives with excellent step/atom economy. The key breakthroughs of this work includes, ynamide bond cleavage, divergent radical precursors, broad scope, easy to handle, larger-scale reactions, generation of multiple bonds (N-C(sp2), C(sp2)-C(sp2), C(sp2)-SO2R/C-SR, and C-I/C-Se/C-H) in a few minutes without photocatalysts, metals, oxidants, additives. Control experiments and 13C-labeling experiments supporting the conclusion that sulfone radicals contribute to ynamide structural reshuffling processes via a radical pathway. Although ynamides have emerged as a versatile class of compounds for organic synthesis, the radical chemistry of ynamides usually proceeds with the expected connectivity largely intact. Here the authors show a methodology by which the C(sp)–N bond undergoes scission, alkyne migration and functionalization under blue LED light in the absence of metals or additives.
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Affiliation(s)
- Mohana Reddy Mutra
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan. .,Department of Medical Research, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
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7
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Hansjacob P, Leroux FR, Gandon V, Donnard M. Palladium-Catalyzed Silylcyanation of Ynamides: Regio- and Stereoselective Access to Tetrasubstituted 3-Silyl-2-Aminoacrylonitriles. Angew Chem Int Ed Engl 2022; 61:e202200204. [PMID: 35060272 DOI: 10.1002/anie.202200204] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 01/02/2023]
Abstract
The palladium-catalyzed silylcyanation of ynamides is described. This reaction is fully regioselective, delivering tetrasubstituted 2-aminoacrylonitriles derivatives exclusively. Unexpectedly, the nature (aryl or alkyl) of the substituent located at the β-position of the ynamide directly controls the stereoselectivity. The reaction tolerates a number of functional groups and can be considered as the first general access to fully substituted 2-aminoacrylonitriles. Given the singular reactivity observed, a computational study was performed to shed light on the mechanism of this intriguing transformation. Relying on the specific reactivity of the newly installed vinylsilane functionality, the scope of 2-aminoacrylonitriles has been enlarged by postfunctionalization.
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Affiliation(s)
- Pierre Hansjacob
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
| | - Frédéric R Leroux
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Saclay, Bâtiment 420, 91405, Orsay cedex, France.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, route de Saclay, 91128, Palaiseau cedex, France
| | - Morgan Donnard
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042), Université de Strasbourg, Université de Haute-Alsace, CNRS, 67000, Strasbourg, France
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8
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Chen F, Zheng Y, Yang H, Yang Q, Wu L, Zhou N. Iron‐Catalyzed Silylation and Spirocyclization of Biaryl‐Ynones: A Radical Cascade Process toward Silylated Spiro[5.5]trienones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fei Chen
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Yang Zheng
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Hao Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Qing‐Yun Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Lu‐Yan Wu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education Anhui Key Laboratory of Molecule-Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 People's Republic of China
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9
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A Rosin-Based Surfactant Enabling Cross-Couplings of Vinyl Dibromides with Sulfonamides in Water. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Affiliation(s)
- Qiang Huang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wei-Na Wang
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matter, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300070, China
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11
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Hansjacob P, Leroux FR, Gandon V, Donnard M. Palladium‐Catalyzed Silylcyanation of Ynamides: Regio‐ and Stereoselective Access to Tetrasubstituted 3‐Silyl‐2‐Aminoacrylonitriles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Pierre Hansjacob
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042) Université de Strasbourg Université de Haute-Alsace CNRS 67000 Strasbourg France
| | - Frédéric R. Leroux
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042) Université de Strasbourg Université de Haute-Alsace CNRS 67000 Strasbourg France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168 Ecole Polytechnique Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
| | - Morgan Donnard
- Laboratoire d'Innovation Moléculaire et Applications (UMR 7042) Université de Strasbourg Université de Haute-Alsace CNRS 67000 Strasbourg France
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12
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Yang X, Gao H, Yan J, Shi L. Recent Progress in Radical-Mediated Si—H Functionalization of Silanes: An Effective Strategy for the Synthesis of Organosilanes Containing C—Si Bond. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202207047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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13
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Shen J, Wu Z, Liu Y, Bai Y, Qiu J, Zhang Z, Yuan Z, Zhu G. Radical Chain Isomerization of N-Sulfonyl Ynamides to Ketenimines and Its Application to Furan Dearomatization. Org Lett 2021; 23:9321-9326. [PMID: 34806892 DOI: 10.1021/acs.orglett.1c03729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A radical chain isomerization of N-sulfonyl ynamides to isolable ketenimines is developed, featuring mild reaction conditions, a high efficiency, ∼100% atom economy, a broad substrate scope, and column chromatography-free workup in most cases. Meanwhile, an unprecedented dearomatization of furans is achieved by the radical chain isomerization-triggered aza-Claisen rearrangement, providing highly chemo-, regio-, stereo-, and diastereoselective access to functionalized quaternary nitriles.
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Affiliation(s)
- Jiahuan Shen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zhenzhen Wu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Yi Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Yihui Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Jiayan Qiu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zuxiao Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zheliang Yuan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
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14
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Golling S, Leroux FR, Donnard M. Versatile Access to Tetrasubstituted 2-Amidoacroleins through Formal Silylformylation of Ynamides. Org Lett 2021; 23:8093-8097. [PMID: 34612044 DOI: 10.1021/acs.orglett.1c03141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In this paper we are reporting the first regio- and stereoselective silylformylation of ynamides. This reaction is tolerant to a wide range of functional groups around the ynamides. The substitution of CO by an isocyanide makes this reaction safer and more practical than standard silylformylation reactions. It overall represents a versatile and rapid access to various tetrasubstituted 3-silyl-2-amidoacrolein derivatives. The synthetic potential of these new building blocks has been evaluated by performing several postfunctionalization.
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Affiliation(s)
- Stéphane Golling
- Université de Strasbourg, CNRS, Université de Haute-Alsace (LIMA UMR 7042), École Européenne de Chimie, Polymères et Matériaux (ECPM), F-67000 Strasbourg, France
| | - Frédéric R Leroux
- Université de Strasbourg, CNRS, Université de Haute-Alsace (LIMA UMR 7042), École Européenne de Chimie, Polymères et Matériaux (ECPM), F-67000 Strasbourg, France
| | - Morgan Donnard
- Université de Strasbourg, CNRS, Université de Haute-Alsace (LIMA UMR 7042), École Européenne de Chimie, Polymères et Matériaux (ECPM), F-67000 Strasbourg, France
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15
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Radical Silyl‐ and Germylzincation of Propargylic Alcohols. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Shandilya S, Protim Gogoi M, Dutta S, Sahoo AK. Gold-Catalyzed Transformation of Ynamides. CHEM REC 2021; 21:4123-4149. [PMID: 34432929 DOI: 10.1002/tcr.202100159] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/27/2021] [Indexed: 11/07/2022]
Abstract
Ynamide, a unique species with inherited polarization of nitrogen lone pair electron to triple bond, has been largely used for the developement of novel synthetic methods and the construction of unusual N-bearing heterocycles. The reaction versatility of ynamide on umpolung reactivity, radical reactions and asymmetric synthesis have been recently reviewed. This review provides an overall scenic view into the gold catalyzed transformation of ynamides. The ynamides reactivity towards nitrogen-transfer reagents, such as azides, nitrogen ylides, isoxazoles, and anthranils; oxygen atom-transfer reagents, like nitrones, sulfoxides, and pyridine N-oxides; and carbon nucleophiles under gold catalysis are herein uncovered. The scope as well the mechanistic insights of each reaction is also briefed.
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Affiliation(s)
| | | | - Shubham Dutta
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, 500046, Hyderabad, India
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17
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Li X, He S, Song Q. Rapid incorporation of a difluoroacetate radical into para-quinone methides via radical 1,6-conjugate addition. Chem Commun (Camb) 2021; 57:6035-6038. [PMID: 34037000 DOI: 10.1039/d1cc02149d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Presented herein is a newly designed strategy that rapidly introduces ethyl difluoroacetate radicals through a dialkylzincs induced radical 1,6-conjugate addition pathway. Besides achieving high yields and excellent functional group compatibility, this protocol allowed the incorporation of a gem-difluoromethylene motif to be accomplished within minutes.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen 361021, Fujian, China.
| | - Songtao He
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen 361021, Fujian, China.
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen 361021, Fujian, China. and State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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18
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Abstract
A novel diethylzinc-mediated radical 1,2-addition of perfluoroalkyl iodides to unactivated alkenes and alkynes is presented, which demonstrates a novel way to generate an ethyl difluoroacetate radical. This method is highly efficient and gives full conversions of the substrates, high yields of the products, and negligible byproducts and requires no column chromatography purifications. The mild conditions enable this protocol to exhibit excellent functional group compatibility.
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Affiliation(s)
- Xin Li
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China
| | - Songtao He
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Boulevard, Xiamen 361021, Fujian, China.,State Key Laboratory of Organometallic Chemistry and Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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19
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Romain E, Vega‐Hernández K, Guégan F, Sanz García J, Fopp C, Chemla F, Ferreira F, Gerard H, Jackowski O, Halbert S, Oestreich M, Perez‐Luna A. Development of a Radical Silylzincation of (Het)Aryl‐Substituted Alkynes and Computational Insights into the Origin of the
trans
‐Stereoselectivity. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001566] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elise Romain
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Karen Vega‐Hernández
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Frédéric Guégan
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Juan Sanz García
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Carolin Fopp
- Technische Universität Berlin Institut für Chemie Straße des 17. Juni 115 D-10623 Berlin Germany
| | - Fabrice Chemla
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Franck Ferreira
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Hélène Gerard
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Olivier Jackowski
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
| | - Stéphanie Halbert
- Sorbonne Université CNRS Laboratoire de Chimie Théorique, LCT F-75005 Paris France
| | - Martin Oestreich
- Technische Universität Berlin Institut für Chemie Straße des 17. Juni 115 D-10623 Berlin Germany
| | - Alejandro Perez‐Luna
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire, IPCM F-75005 Paris France
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20
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Tan TD, Wang ZS, Qian PC, Ye LW. Radical Reactions of Ynamides. SMALL METHODS 2021; 5:e2000673. [PMID: 34927818 DOI: 10.1002/smtd.202000673] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/31/2020] [Indexed: 06/14/2023]
Abstract
Ynamides are electron-rich heteroatom-substituted alkynes with C-C triple bond directly tethered to the amide group. Over the past decades, ynamides have proven to be versatile reagents for organic synthesis and have received extensive attention. Compared with the well-established ionic reactions of ynamides, radical-based ynamide reactions have been exploited relatively seldom. Herein, radical reactions of ynamides, classified by radical attack at the α-position and β-position of ynamides, are reviewed by highlighting the reaction selectivity, scope, mechanism, and applicability. The aim of this review is to provide a comprehensive summarization of these advances, casting light on the further development of ynamide chemistry.
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Affiliation(s)
- Tong-De Tan
- Key Laboratory for Chemical Biology of Fujian Province & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ze-Shu Wang
- Key Laboratory for Chemical Biology of Fujian Province & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Peng-Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, China
| | - Long-Wu Ye
- Key Laboratory for Chemical Biology of Fujian Province & State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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21
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Zhou G, Su J, Shang T, Wang X, Bai Y, Yuan Z, Zhu G. Synthesis of polysubstituted azetidines via cascade trifluoromethylation/cyclization of N-allyl ynamides. Org Chem Front 2021. [DOI: 10.1039/d1qo00559f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A cascade trifluoromethylation/cyclization of N-allyl sulfonylynamides is developed, providing a direct access to azetidine-fused tricyclic compounds at room temperature.
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Affiliation(s)
- Genlai Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Jingwen Su
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Tianbo Shang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Xiaojuan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Yihui Bai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Zheliang Yuan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials
- Department of Chemistry
- Zhejiang Normal University
- Jinhua 321004
- P. R. China
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22
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Affiliation(s)
- Capucine Mahe
- Chimie ParisTech CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology PSL University 75005 Paris France
- CNRS Institut de Chimie des Substances Naturelles Université Paris-Saclay LabEx LERMIT, UPR 2301 91198 Gif-sur-Yvette France
| | - Kevin Cariou
- Chimie ParisTech CNRS Institute of Chemistry for Life and Health Sciences Laboratory for Inorganic Chemical Biology PSL University 75005 Paris France
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23
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Debrauwer V, Turlik A, Rummler L, Prescimone A, Blanchard N, Houk KN, Bizet V. Ligand-Controlled Regiodivergent Palladium-Catalyzed Hydrogermylation of Ynamides. J Am Chem Soc 2020; 142:11153-11164. [DOI: 10.1021/jacs.0c03556] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Vincent Debrauwer
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Aneta Turlik
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Lénaic Rummler
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - Alessandro Prescimone
- Chemistry Department, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Nicolas Blanchard
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
| | - K. N. Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Vincent Bizet
- Université de Haute-Alsace, Université de Strasbourg, CNRS, LIMA, UMR 7042, 68000 Mulhouse, France
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24
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Wang K, Zhuang Z, Ti H, Wu P, Zhao X, Wang H. Et2Zn-promoted β-trans-selective hydroboration of ynamide. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Zhang Z, Fu B, Wang H, Chen H, Tu Y, Zhao J. Access to ( Z)-1,2-Endiamides and 1,1-Endiamides via a Base-Promoted Tandem Reaction. J Org Chem 2020; 85:5245-5254. [PMID: 32207944 DOI: 10.1021/acs.joc.9b03305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient base-promoted tandem reaction between vinyl 1,1-dichlorides and secondary sulfonamides with ynamide as the key intermediate is described. This method provides a facile approach to (Z)-1,2-endiamide and aryl 1,1-endiamide derivatives via the β-hydroamidation of terminal ynamides and the α-hydroamidation of internal ynamides, respectively. This reaction proceeded through double elimination of vinyl chlorides and double addition of nucleophiles to alkynes. In addition, it features readily available starting materials, mild reaction conditions, a broad substrate scope, a wide functional group tolerance, and an operational convenience.
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Affiliation(s)
- Zhenming Zhang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Bei Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Hui Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Han Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Yongliang Tu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Junfeng Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
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26
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Dwadnia N, Lingua H, Mouysset D, Mimoun L, Siri D, Bertrand MP, Feray L. Intermolecular Addition of Carbon-Centered Radicals to Ynamides. A Regio- and Stereoselective Route to Persubstituted α-Iodo-enamides. J Org Chem 2020; 85:4114-4121. [PMID: 32069414 DOI: 10.1021/acs.joc.9b03255] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Rather surprisingly, C-C bond formation through "intermolecular" radical addition to internal ynamides has never been reported. Actually, ynamides are excellent acceptors for "electrophilic" carbon-centered radicals. These processes enable the introduction of functionalized alkyl chains at Cβ, groups that have not yet been introduced via the addition of organometallics. Radical carboiodination affords persubstituted α-iodo-enamides in moderate to high yield. The addition is totally stereoselective. Theoretical support to the mechanism and the scope and limitation of the reaction are discussed.
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Affiliation(s)
- Nejib Dwadnia
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Hugo Lingua
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Dominique Mouysset
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Liliane Mimoun
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Didier Siri
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Michèle P Bertrand
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
| | - Laurence Feray
- Aix Marseille Univ, CNRS, ICR, Institut Chimie Radicalaire, UMR 7273, Equipes CMO et CT, Campus St Jérôme, Avenue Escadrille Normandie-Niemen, 13397 Marseille Cedex 20, France
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27
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Wang ZS, Chen YB, Zhang HW, Sun Z, Zhu C, Ye LW. Ynamide Smiles Rearrangement Triggered by Visible-Light-Mediated Regioselective Ketyl-Ynamide Coupling: Rapid Access to Functionalized Indoles and Isoquinolines. J Am Chem Soc 2020; 142:3636-3644. [PMID: 32003986 DOI: 10.1021/jacs.9b13975] [Citation(s) in RCA: 112] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In the past decades, significant advances have been made on radical Smiles rearrangement. However, the eventually formed radical intermediates in these reactions are limited to the amidyl radical, except for the few examples initiated by a N-centered radical. Here, a novel and practical radical Smiles rearrangement triggered by photoredox-catalyzed regioselective ketyl-ynamide coupling is reported, which represents the first radical Smiles rearrangement of ynamides. This method enables facile access to a variety of valuable 2-benzhydrylindoles with broad substrate scope in generally good yields under mild reaction conditions. In addition, this chemistry can also be extended to the divergent synthesis of versatile 3-benzhydrylisoquinolines through a similar ketyl-ynamide coupling and radical Smiles rearrangement, followed by dehydrogenative oxidation. Moreover, such an ynamide Smiles rearrangement initiated by intermolecular photoredox catalysis via addition of external radical sources is also achieved. By control experiments, the reaction was shown to proceed via key ketyl radical and α-imino carbon radical intermediates.
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Affiliation(s)
- Ze-Shu Wang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Yang-Bo Chen
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Hao-Wen Zhang
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Zhou Sun
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China
| | - Chunyin Zhu
- School of Chemistry and Chemical Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Long-Wu Ye
- iChEM, State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.,State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , Shanghai 200032 , China
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28
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Cui WC, Zhao W, Gao M, Liu W, Wang S, Liang Y, Yao ZJ. Diastereoselective Synthesis of Polysubstituted Piperidines through Visible-Light-Driven Silylative Cyclization of Aza-1,6-Dienes: Experimental and DFT Studies. Chemistry 2019; 25:16506-16510. [PMID: 31544271 DOI: 10.1002/chem.201903440] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/19/2019] [Indexed: 01/24/2023]
Abstract
A visible-light-driven radical silylative cyclization of aza-1,6-dienes featuring an acrylonitrile or acrylate moiety and an electron-neutral olefin was developed, which allows for stereoselective synthesis of densely functionalized piperidines in a highly atom-economical manner. Depending on the substitution pattern of the electron-neutral olefin, poor-to-excellent diastereoselectivity was observed. It was suggested that the 6-exo-trig cyclization was initiated by a chemoselective addition of silyl radical toward electron-deficient olefin and the geometry of the remaining olefin is closely associated with the cis-stereoselectivity. DFT calculations supported that a transition state with a cyano group locating at the axial position of the forming piperidine ring might be involved, in which either the increase of 1,3-diaxial repulsion or the lack of hydrogen bonding interaction will diminish diastereoselectivity.
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Affiliation(s)
- Wei-Chen Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Ming Gao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Wei Liu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, P. R. China
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29
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Cai Y, Zhao W, Wang S, Liang Y, Yao ZJ. Access to Functionalized E-Allylsilanes and E-Alkenylsilanes through Visible-Light-Driven Radical Hydrosilylation of Mono- and Disubstituted Allenes. Org Lett 2019; 21:9836-9840. [DOI: 10.1021/acs.orglett.9b03679] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yanyao Cai
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wenxuan Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yong Liang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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30
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Peng Z, Zhang Z, Zeng X, Tu Y, Zhao J. Regio‐ and Stereoselective Hydrophosphorylation of Ynamides: A Facile Approach to (
Z
)‐
β
‐Phosphor‐Enamides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900734] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhiyuan Peng
- College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Zhenming Zhang
- College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
- Jiangxi Province Key Laboratory of Chemical Biology, Nanchang 330022 Jiangxi People's Republic of China
| | - Xianzhu Zeng
- College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Yongliang Tu
- College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
| | - Junfeng Zhao
- College of Chemistry & Chemical EngineeringJiangxi Normal University, Nanchang Jiangxi 330022 People's Republic of China
- Jiangxi Province Key Laboratory of Chemical Biology, Nanchang 330022 Jiangxi People's Republic of China
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31
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingzhou Shang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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32
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Zeng X, Tu Y, Zhang Z, You C, Wu J, Ye Z, Zhao J. Transition-Metal-Free One-Step Synthesis of Ynamides. J Org Chem 2019; 84:4458-4466. [PMID: 30843394 DOI: 10.1021/acs.joc.8b03192] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A robust transition-metal-free one-step strategy for the synthesis of ynamides from sulfonamides and ( Z)-1,2-dichloroalkenes or alkynyl chlorides is presented. This method is not only effective for internal ynamides but also amenable for terminal ynamides. Various functional groups, even the vinyl moiety, are compatible, and thus, this strategy offers the opportunity for further functionalization.
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Affiliation(s)
- Xianzhu Zeng
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Yongliang Tu
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Zhenming Zhang
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Changming You
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Jiao Wu
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Zhiying Ye
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
| | - Junfeng Zhao
- Key Laboratory of Chemical Biology of Jiangxi Province, College of Chemistry and Chemical Engineering , Jiangxi Normal University , Nanchang 330022 , People's Republic of China
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33
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de la Vega-Hernández K, Romain E, Coffinet A, Bijouard K, Gontard G, Chemla F, Ferreira F, Jackowski O, Perez-Luna A. Radical Germylzincation of α-Heteroatom-Substituted Alkynes. J Am Chem Soc 2018; 140:17632-17642. [DOI: 10.1021/jacs.8b09851] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Elise Romain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Anais Coffinet
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Kajetan Bijouard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Geoffrey Gontard
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Fabrice Chemla
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Franck Ferreira
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Olivier Jackowski
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
| | - Alejandro Perez-Luna
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, F-75005 Paris, France
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34
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He T, Liu LC, Guo L, Li B, Zhang QW, He W. Rhodium-Catalyzed Intermolecular trans
-Disilylation of Alkynones with Unactivated Disilanes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Tao He
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Le Guo
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Bin Li
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Qing-Wei Zhang
- Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Wei He
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
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35
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He T, Liu LC, Guo L, Li B, Zhang QW, He W. Rhodium-Catalyzed Intermolecular trans
-Disilylation of Alkynones with Unactivated Disilanes. Angew Chem Int Ed Engl 2018; 57:10868-10872. [PMID: 29956433 DOI: 10.1002/anie.201804223] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Indexed: 01/05/2023]
Affiliation(s)
- Tao He
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Li-Chuan Liu
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Le Guo
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Bin Li
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
| | - Qing-Wei Zhang
- Department of Chemistry; University of Science and Technology of China; Hefei 230026 China
| | - Wei He
- School of Pharmaceutical Sciences and MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology; Tsinghua University; Beijing 100084 P. R. China
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36
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Chatgilialoglu C, Ferreri C, Landais Y, Timokhin VI. Thirty Years of (TMS)3SiH: A Milestone in Radical-Based Synthetic Chemistry. Chem Rev 2018; 118:6516-6572. [DOI: 10.1021/acs.chemrev.8b00109] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Carla Ferreri
- ISOF, Consiglio Nazionale delle Ricerche, Via P. Gobetti 101, 40129 Bologna, Italy
| | - Yannick Landais
- University of Bordeaux, Institute of Molecular Sciences, UMR-CNRS 5255, 351 cours de la libération, 33405 Talence Cedex, France
| | - Vitaliy I. Timokhin
- Department of Biochemistry, University of Wisconsin-Madison, 1552 University Avenue, Madison, Wisconsin 53726, United States
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37
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Zhu J, Cui WC, Wang S, Yao ZJ. Radical Hydrosilylation of Alkynes Catalyzed by Eosin Y and Thiol under Visible Light Irradiation. Org Lett 2018; 20:3174-3178. [DOI: 10.1021/acs.orglett.8b00909] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Wei-Chen Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
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38
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Baldassari LL, de la Torre A, Li J, Lüdtke DS, Maulide N. Ynamide Preactivation Allows a Regio- and Stereoselective Synthesis of α,β-Disubstituted Enamides. Angew Chem Int Ed Engl 2017; 56:15723-15727. [PMID: 29032598 DOI: 10.1002/anie.201709128] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Indexed: 12/13/2022]
Abstract
A novel ynamide preactivation strategy enables the use of otherwise incompatible reagents and allows preparation of α,β-disubstituted enamides with high regio- and stereoselectivity. Mechanistic analysis reveals the intermediacy of a triflate-bound intermediate as a solution-stable, effective keteniminium reservoir, whilst still allowing subsequent addition of organometallic reagents.
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Affiliation(s)
- Lucas L Baldassari
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil
| | - Aurélien de la Torre
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
| | - Jing Li
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
| | - Diogo S Lüdtke
- Institute of Chemistry, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves 9500, 91501-970, Porto Alegre, RS, Brazil
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strassee 38, 1090, Vienna, Austria
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39
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Baldassari LL, de la Torre A, Li J, Lüdtke DS, Maulide N. Regio- und stereoselektive Synthese α,β-disubstituierter Enamide durch Voraktivierung von Inamiden. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lucas L. Baldassari
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves 9500 91501-970 Porto Alegre RS Brasilien
| | - Aurélien de la Torre
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Jing Li
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
| | - Diogo S. Lüdtke
- Institute of Chemistry; Universidade Federal do Rio Grande do Sul; Av. Bento Gonçalves 9500 91501-970 Porto Alegre RS Brasilien
| | - Nuno Maulide
- Institut für Organische Chemie; Universität Wien; Währinger Straße 38 1090 Wien Österreich
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40
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Xu Z, Chai L, Liu ZQ. Free-Radical-Promoted Site-Selective C–H Silylation of Arenes by Using Hydrosilanes. Org Lett 2017; 19:5573-5576. [DOI: 10.1021/acs.orglett.7b02717] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhengbao Xu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Li Chai
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhong-Quan Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- State
Key Laboratory Cultivation Base for TCM Quality and Efficacy, College
of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
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41
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Beltran F, Fabre I, Ciofini I, Miesch L. Direct Spirocyclization from Keto-sulfonamides: An Approach to Azaspiro Compounds. Org Lett 2017; 19:5042-5045. [PMID: 28929765 DOI: 10.1021/acs.orglett.7b02216] [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
Spontaneous spirocyclization of keto-sulfonamides via ynamides through a one-pot process is presented. Push-pull ynamides were obtained through Michael addition/elimination without Cu. The obtained azaspiro compounds are building blocks for indole alkaloids. Theoretical studies provide insights into the mechanism of the formal Conia-ene reaction.
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Affiliation(s)
- Frédéric Beltran
- Laboratoire de Chimie Organique Synthétique, Institut de Chimie, CNRS-UdS UMR 7177 , 4, rue Blaise Pascal CS 90032, 67081 Strasbourg, France
| | - Indira Fabre
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) , 75005 Paris, France.,Département de chimie, École Normale Supérieure, PSL Research University, Sorbonne Universités, UPMC Univ. , Paris 06, CNRS, 75005 Paris, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) , 75005 Paris, France
| | - Laurence Miesch
- Laboratoire de Chimie Organique Synthétique, Institut de Chimie, CNRS-UdS UMR 7177 , 4, rue Blaise Pascal CS 90032, 67081 Strasbourg, France
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42
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43
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Li L, Chen XM, Wang ZS, Zhou B, Liu X, Lu X, Ye LW. Reversal of Regioselectivity in Catalytic Arene-Ynamide Cyclization: Direct Synthesis of Valuable Azepino[4,5-b]indoles and β-Carbolines and DFT Calculations. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01038] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Li
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiu-Mei Chen
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Theoretical and Computational Chemistry, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ze-Shu Wang
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bo Zhou
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Liu
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Theoretical and Computational Chemistry, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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44
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Siva Reddy A, Kumara Swamy KC. Ethanol as a Hydrogenating Agent: Palladium-Catalyzed Stereoselective Hydrogenation of Ynamides To Give Enamides. Angew Chem Int Ed Engl 2017; 56:6984-6988. [DOI: 10.1002/anie.201702277] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Alla Siva Reddy
- School of Chemistry; University of Hyderabad; Hyderabad- 500046 India
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45
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Siva Reddy A, Kumara Swamy KC. Ethanol as a Hydrogenating Agent: Palladium-Catalyzed Stereoselective Hydrogenation of Ynamides To Give Enamides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702277] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alla Siva Reddy
- School of Chemistry; University of Hyderabad; Hyderabad- 500046 India
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46
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Ahmad M, Gaumont AC, Durandetti M, Maddaluno J. Direct Syn
Addition of Two Silicon Atoms to a C≡C Triple Bond by Si−Si Bond Activation: Access to Reactive Disilylated Olefins. Angew Chem Int Ed Engl 2017; 56:2464-2468. [DOI: 10.1002/anie.201611719] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 12/21/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Maha Ahmad
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Annie-Claude Gaumont
- Normandie Université; UNICAEN; ENSICAEN, CNRS, LCMT (UMR 6507 & FR 3038); 14000 Caen France
| | - Muriel Durandetti
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Jacques Maddaluno
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
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47
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Ahmad M, Gaumont AC, Durandetti M, Maddaluno J. Direct Syn
Addition of Two Silicon Atoms to a C≡C Triple Bond by Si−Si Bond Activation: Access to Reactive Disilylated Olefins. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611719] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Maha Ahmad
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Annie-Claude Gaumont
- Normandie Université; UNICAEN; ENSICAEN, CNRS, LCMT (UMR 6507 & FR 3038); 14000 Caen France
| | - Muriel Durandetti
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
| | - Jacques Maddaluno
- Normandie Université; UNIROUEN; INSA Rouen, CNRS, COBRA (UMR 6014 & FR 3038); 76000 Rouen France
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48
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Tang L, Huang H, Xi Y, He G, Zhu H. Pd/Cu-Catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyloxazolones. Org Biomol Chem 2017; 15:2923-2930. [DOI: 10.1039/c7ob00381a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the first Pd/Cu-catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyl-oxazolones.
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Affiliation(s)
- Luning Tang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hai Huang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Yang Xi
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Guangke He
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hongjun Zhu
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
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49
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Tona V, Ruider SA, Berger M, Shaaban S, Padmanaban M, Xie LG, González L, Maulide N. Divergent ynamide reactivity in the presence of azides - an experimental and computational study. Chem Sci 2016; 7:6032-6040. [PMID: 30034744 PMCID: PMC6022194 DOI: 10.1039/c6sc01945e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 05/24/2016] [Indexed: 12/30/2022] Open
Abstract
An unusually divergent reactivity of ynamides in the presence of azides is reported. This new keteniminium-based methodology, which only requires triflic acid as promoter, facilitates access to β-enaminoamides and biologically important oxazolidine-2,4-diones in a highly selective, divergent manner that is fully controllable by the present azide. A mechanistic rationale for these divergent reaction pathways is delineated and supported by extensive density functional theory analyses, as well as selected mechanistic experiments.
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Affiliation(s)
- Veronica Tona
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Stefan A. Ruider
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
. ,
Institute of Theoretical Chemistry
, Faculty of Chemistry
, University of Vienna
,
Währinger Straße 17
, 1090 Vienna
, Austria
| | - Martin Berger
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Saad Shaaban
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Mohan Padmanaban
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Lan-Gui Xie
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
| | - Leticia González
- Institute of Theoretical Chemistry
, Faculty of Chemistry
, University of Vienna
,
Währinger Straße 17
, 1090 Vienna
, Austria
| | - Nuno Maulide
- Institute of Organic ChemistryFaculty of Chemistry
, University of Vienna
,
Währinger Straße 38
, 1090 Vienna
, Austria
.
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50
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Shaya J, Fontaine-Vive F, Michel BY, Burger A. Rational Design of Push-Pull Fluorene Dyes: Synthesis and Structure-Photophysics Relationship. Chemistry 2016; 22:10627-37. [PMID: 27304218 DOI: 10.1002/chem.201600581] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Indexed: 12/22/2022]
Abstract
Our work surveyed experimental and theoretical investigations to construct highly emissive D-π-A (D=donor, A=acceptor) fluorenes. The synthetic routes were optimised to be concise and gram-scalable. The molecular design was first rationalised by varying the electron-withdrawing group from an aldehyde, ketotriazole or succinyl to methylenemalonitrile or benzothiadiazole. The electron-donating group was next varied from aliphatic or aromatic amines to saturated cyclic amines ranging from aziridine to azepane. Spectroscopic studies correlated with TD-DFT calculations provided the optimised structures. The selected push-pull dyes exhibited visible absorptions, significant brightness, important solvatofluorochromism, mega-Stokes shifts (>250 nm) and dramatic shifts in emission to the near-infrared. The current library includes the comprehensive characterization of 16 prospective dyes for fluorescence applications. Among them, several fluorene derivatives bearing different conjugation anchors were tested for coupling and demonstrated to preserve the photophysical responses once further bound.
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Affiliation(s)
- Janah Shaya
- Institut de Chimie de Nice, UMR 7272, Université de Nice Sophia Antipolis, CNRS, Parc Valrose, 06108, Nice Cedex 2, France
| | - Fabien Fontaine-Vive
- Institut de Chimie de Nice, UMR 7272, Université de Nice Sophia Antipolis, CNRS, Parc Valrose, 06108, Nice Cedex 2, France
| | - Benoît Y Michel
- Institut de Chimie de Nice, UMR 7272, Université de Nice Sophia Antipolis, CNRS, Parc Valrose, 06108, Nice Cedex 2, France
| | - Alain Burger
- Institut de Chimie de Nice, UMR 7272, Université de Nice Sophia Antipolis, CNRS, Parc Valrose, 06108, Nice Cedex 2, France.
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