1
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Maity A, Sahoo AK. Copper-Catalyzed Regio- and Stereoselective Hydroarylation of Ynamide. J Org Chem 2024. [PMID: 38170946 DOI: 10.1021/acs.joc.3c01720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Presented herein is a copper-catalyzed trans-hydroarylation of ynamides. The reaction showcases the assembly of boronic acids across the carbon-carbon triple bond of ynamides. The reaction proceeds under mild conditions offering a complementary approach for the versatile synthesis of multifunctional (E)-α,β-disubstituted enamides. Moreover, the hydroarylation process is highly regio- and stereoselective. The transformation shows a broad scope (30 examples) and tolerates a wide range of labile functional groups. Control experiments provide substantive evidence supporting the mechanistic cycle and the observed selectivity.
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Affiliation(s)
- Avijit Maity
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad 500046, India
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2
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Lu JB, Xu XQ, Ruan ZS, Liu K, Liang RX, Jia YX. Pd-Catalyzed Intramolecular Dearomative [4 + 2] Cycloaddition of Naphthalenes with Arylalkynes. Org Lett 2023; 25:8139-8144. [PMID: 37934112 DOI: 10.1021/acs.orglett.3c03240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
A Pd-catalyzed intramolecular dearomative [4 + 2] cycloaddition reaction of naphthalenes with arylalkynes is developed. The protocol provides a straightforward method to access a range of polycyclic dihydronaphthalenes containing two vicinal all-carbon stereocenters in moderate yields under mild conditions in an air atmosphere. The deuterium labeling experiment suggests a pathway involving electrophilic dearomatization followed by Friedel-Crafts cyclization. Several synthetic transformations of the product were conducted to demonstrate the utility of this reaction.
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Affiliation(s)
- Jin-Bo Lu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Xiao-Qiu Xu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Zi-Sheng Ruan
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Kai Liu
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Ren-Xiao Liang
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
| | - Yi-Xia Jia
- College of Chemical Engineering, State Key Laboratory Breeding Base of Green-Chemical Synthesis Technology, Zhejiang University of Technology, Chaowang Road 18, Hangzhou, Zhejiang 310014, China
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3
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Fang R, Liu K, Kirillov AM, Yang L. DFT Rationalization of Gold(I)-Catalyzed Couplings between Alkynyl Thioether and Nitrenoid Derivatives: Mechanism, Selectivity Patterns, and Effects of Substituents. J Org Chem 2022; 87:7193-7201. [PMID: 35579210 DOI: 10.1021/acs.joc.2c00407] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The present work focuses on a theoretical investigation of mechanistic features, chemoselectivity, regioselectivity, and effect of substituents in the gold-catalyzed reactions of alkynyl thioethers and isoxazoles. The DFT calculations reveal that the nucleophilic attack of isoxazole to a β-position of catalyst-bound ynamide forms a vinyl intermediate. This undergoes cleavage of the N-O isoxazole bond and isomerizes to form an α-imino α'-sulfenyl gold carbene complex with stabilization of the Au-S interaction. For 3,5-dimethylisoxazole, the reaction follows a formal [3 + 2] cycloaddition pathway and a 1,3-H migration to give the pyrrole products. Replacement of 3,5-dimethylisoxazole by 3,5-dimethyl-4-phenylisoxazole leads to the formation of deacylative annulation products and desulfenylated 3-acylated pyrroles. Reactions with 4-methyl-3,5-diphenylisoxazoles induce the formation of N-acylated pyrroles and desulfenylated 3-acylated pyrroles. For the minor pathway, the α-addition and 1,2-S migration result in sulfur-substituted β-keto enamide derivatives. In addition, the unique features of regio- and chemoselectivity were rationalized by the distortion and interaction analysis. Apart from fully rationalizing the experimental results, the theoretical DFT data give an important support for comprehending related types of reaction mechanisms.
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Affiliation(s)
- Ran Fang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Kunyang Liu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Alexander M Kirillov
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, Lisbon 1049-001, Portugal
| | - Lizi Yang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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4
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Salam A, Kumar D, Sahu TK, Khan R, Khan T. Total Synthesis of (−)‐Magnoshinin and (+)‐Merrilliaquinone: Application of a Late‐Stage Oxidative Functionalization Protocol. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Abdus Salam
- Indian Institute of Technology Bhubaneswar School of Basic Sciences Argul, KhurdhaOdishaBhubaneswar 752050 Bhubaneswar INDIA
| | - Dileep Kumar
- Indian Institute of Technology Bhubaneswar School of Basic Sciences INDIA
| | - Tonish K. Sahu
- Indian Institute of Technology Bhubaneswar School of Basic Sciences INDIA
| | - Rahimuddin Khan
- Indian Institute of Technology Bhubaneswar School of Basic Sciences INDIA
| | - Tabrez Khan
- Indian Institute of Technology Bhubaneswar School of Basic Sciences Argul, Jatni 752050 Khurdha INDIA
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5
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Shcherbakov NV, Chikunova EI, Dar'in D, Kukushkin VY, Dubovtsev AY. Redox-Neutral and Atom-Economic Route to β-Carbolines via Gold-Catalyzed [4 + 2] Cycloaddition of Indolylynamides and Cyanamides. J Org Chem 2021; 86:17804-17815. [PMID: 34812641 DOI: 10.1021/acs.joc.1c02119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gold(I)-catalyzed [4 + 2] cycloaddition of indolylynamides and cyanamides (aminonitriles) is an efficient redox-neutral and atom-economic route to diversely substituted 1,3-diamino-β-carbolines. The protocol operates under mild conditions (Ph3PAuNTf2 5 mol %, DCE, 60 °C) with a good tolerance to functional groups (23 examples and yields up to 98%). The obtained β-carboline systems represent a versatile synthetic platform with modifiable substituents for successive functionalizations. Control experiments indicate the crucial role of both the nature of reactants and the identity of employed catalysts in the developed cycloaddition.
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Affiliation(s)
- Nikolay V Shcherbakov
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Elena I Chikunova
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry Dar'in
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Alexey Yu Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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6
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Zanini M, Cataffo A, Echavarren AM. Synthesis of Cyclobutanones by Gold(I)-Catalyzed [2 + 2] Cycloaddition of Ynol Ethers with Alkenes. Org Lett 2021; 23:8989-8993. [PMID: 34730987 DOI: 10.1021/acs.orglett.1c03499] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A broad scope synthesis of cyclobutanones by gold(I)-catalyzed [2 + 2] cycloaddition of ynol ethers with alkenes has been developed. We also found that internal aryl ynol ethers can undergo (4 + 2) cycloaddition reaction with alkenes leading to the corresponding chromanes.
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Affiliation(s)
- Margherita Zanini
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Andrea Cataffo
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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7
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Suárez‐Rodríguez T, Suárez‐Sobrino ÁL, Ballesteros A. Gold(I)-Catalyzed Intermolecular Formal [4+2] Cycloaddition of O-Aryl Ynol Ethers and Enol Ethers: Synthesis of Chromene Derivatives. Chemistry 2021; 27:13079-13084. [PMID: 34278626 PMCID: PMC8518403 DOI: 10.1002/chem.202102534] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 11/06/2022]
Abstract
Gold(I)-catalyzed formal [4+2] cycloaddition of O-aryl ynol ethers 1 and enol ethers 2 is described. This intermolecular reaction between two electron-rich unsaturated systems takes place, under mild conditions, in the presence of 5 mol% [IPrAu(CH3 CN)]SbF6 as catalyst giving chromene derivatives with good yields. The cycloaddition is completely regio- and stereoselective, as well as versatile for both reactives. Silyl enol ethers can also react in the same way and under the same reaction conditions with quantitative yields. A plausible mechanism through a selective addition of the enol ether to the alkyne gold activated complex followed by an intramolecular aromatic electrophilic substitution is proposed. Several experimental results support the presence of a cationic oxonium intermediate prior to the aromatic substitution. The reaction represents a new entry to the chromene core.
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Affiliation(s)
- Tatiana Suárez‐Rodríguez
- Departamento de Química Orgánica e InorgánicaInstituto de Química Organometálica “Enrique Moles”Universidad de OviedoJulián ClaveríaOviedo, 833006-OviedoSpain
| | - Ángel L. Suárez‐Sobrino
- Departamento de Química Orgánica e InorgánicaInstituto de Química Organometálica “Enrique Moles”Universidad de OviedoJulián ClaveríaOviedo, 833006-OviedoSpain
| | - Alfredo Ballesteros
- Departamento de Química Orgánica e InorgánicaInstituto de Química Organometálica “Enrique Moles”Universidad de OviedoJulián ClaveríaOviedo, 833006-OviedoSpain
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8
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Zuccarello G, Escofet I, Caniparoli U, Echavarren AM. New-Generation Ligand Design for the Gold-Catalyzed Asymmetric Activation of Alkynes. Chempluschem 2021; 86:1283-1296. [PMID: 34472729 PMCID: PMC8457203 DOI: 10.1002/cplu.202100232] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/09/2021] [Indexed: 01/01/2023]
Abstract
Gold(I) catalysts are ideal for the activation of alkynes under very mild conditions. However, unlike allenes or alkenes, the triple bond of alkynes cannot be prochiral. In addition, the linear coordination displayed by gold(I) complexes places the chiral ligand far away from the substrate resulting in an inefficient transfer of chiral information. This poses a significant challenge for the achievement of high enantiocontrol in gold(I)-catalyzed reactions of alkynes. Although considerable progress on enantioselective gold(I)-catalyzed transformations has recently been achieved, the asymmetric activation of non-prochiral alkyne-containing small molecules still represents a great challenge. Herein we summarize recent advances in intra- and intermolecular enantioselective gold(I)-catalyzed reactions involving alkynes, discussing new chiral ligand designs that lie at the basis of these developments. We also focus on the mode of action of these catalysts, their possible limitations towards a next-generation of more efficient ligand designs. Finally, square planar chiral gold(III) complexes, which offer an alternative to chiral gold(I) complexes, are also discussed.
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Affiliation(s)
- Giuseppe Zuccarello
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Ulysse Caniparoli
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology (BIST)Av. Països Catalans 1643007TarragonaSpain
- Departament de Química Orgànica i AnalíticaUniversitat Rovira i Virgili (URV)C/Marcel⋅lí Domingo s/n43007TarragonaSpain
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9
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Zhao Z, Tian Q, Chen Y, Wen S, Zhang Y, Cheng G. Base-Promoted Stereoselective Hydrogenation of Ynamides with Sulfonyl Hydrazide to Give Z-Enamides. J Org Chem 2021; 86:10407-10413. [PMID: 34314182 DOI: 10.1021/acs.joc.1c01085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A base-mediated semihydrogenation of ynamides using p-toluenesulfonyl hydrazide as an inexpensive and easy-to-handle hydrogen donor is reported. This transition-metal-free protocol avoids overhydrogenation and reduction of other functional groups, generating the thermodynamically unfavorable Z-enamides exclusively.
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Affiliation(s)
- Zemin Zhao
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
| | - Qingyu Tian
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
| | - Yanhui Chen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
| | - Si Wen
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
| | - Yuqing Zhang
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
| | - Guolin Cheng
- Xiamen Key Laboratory of Optoelectronic Materials and Advanced Manufacturing, College of Materials Science and Engineering, the Instrumental Analysis Center, Huaqiao University, Xiamen, Fujian 361021, China
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10
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Suárez-Rodríguez T, Suárez-Sobrino ÁL, Ballesteros A. Gold(I)-Catalyzed [8+2]-Cycloaddition of 8-Aryl-8-azaheptafulvenes with Allenamides and Ynamides: Regioselective Synthesis of Dihydrocycloheptapyrrole Derivatives. Chemistry 2021; 27:7154-7159. [PMID: 33567146 DOI: 10.1002/chem.202005348] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Indexed: 01/01/2023]
Abstract
Gold(I)-catalyzed higher-order [8+2] cycloadditions of 8-aryl-8-azaheptafulvenes 1 with allenamides 2 and ynamides 3 were studied. 1,8-Dihydrocycloheptapyrroles 4 were achieved by a regioselective [8+2] cycloaddition of azaheptafulvenes 1 and allenamides 2 in the presence of (2,4-ditBuC6 H3 O)3 PAuNTf2 as catalyst. Besides, ynamides 3 and 8-aryl-8-azaheptafulvenes 1, undergo a regioselective [8+2] cycloaddition, to give 2-amido-1,4-dihydrocycloheptapyrroles 7 in the presence of JohnPhosAuNTf2 as catalyst. Both reactions take place with good yields and with a variety of substituents. A plausible mechanism hypothesis suggests a nucleophilic attack of the 8-azaheptafulvene to the gold activated electron rich allene or alkyne moieties of the allenamide and ynamide, respectively.
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Affiliation(s)
- Tatiana Suárez-Rodríguez
- Departamento de Química Orgánica e Inorgánica, Instituto 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 de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Alfredo Ballesteros
- Departamento de Química Orgánica e Inorgánica, Instituto de Química Organometálica "Enrique Moles", Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
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11
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Hu YC, Zhao Y, Wan B, Chen QA. Reactivity of ynamides in catalytic intermolecular annulations. Chem Soc Rev 2021; 50:2582-2625. [PMID: 33367365 DOI: 10.1039/d0cs00283f] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ynamides are unique alkynes with a carbon-carbon triple bond directly attached to the nitrogen atom bearing an electron-withdrawing group. The alkyne is strongly polarized by the electron-donating nitrogen atom, but its high reactivity can be finely tempered by the electron-withdrawing group. Accordingly, ynamides are endowed with both nucleophilic and electrophilic properties and their chemistry has been an active research field. The catalytic intermolecular annulations of ynamides, featuring divergent assembly of structurally important amino-heterocycles in a regioselective manner, have gained much attention over the past decade. This review aims to provide a comprehensive summary of the advances achieved in this area involving transition metal and acid catalysis. Moreover, the intermolecular annulations of ynamide analogs including ynol ethers and thioalkynes are also discussed, which can provide insights into the reactivity difference caused by the heteroatoms.
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Affiliation(s)
- Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
| | - Yingying Zhao
- School of Chemistry and Chemical Engineering, Liaoning Normal University, 850 Huanghe Road, Dalian 116029, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China.
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12
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Reactivity of ynamides with AlCl3 and ICl: Ready access to (E)-α-chloroenamides and (E/Z)-α-chloro-β-iodo-enamides. J CHEM SCI 2021. [DOI: 10.1007/s12039-020-01880-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Zhang C, Hong K, Pei C, Zhou S, Hu W, Hashmi ASK, Xu X. Gold(I)-catalyzed intramolecular cyclization/intermolecular cycloaddition cascade as a fast track to polycarbocycles and mechanistic insights. Nat Commun 2021; 12:1182. [PMID: 33608521 PMCID: PMC7896061 DOI: 10.1038/s41467-021-21335-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/15/2021] [Indexed: 12/28/2022] Open
Abstract
Metal carbene is an active synthetic intermediate, which has shown versatile applications in synthetic chemistry. Although a variety of catalytic methods have been disclosed for the generation of carbene species from different precursors, there is an increasing demand for the development of efficient and practical approaches for the in-situ formation of metal carbene intermediates with structural diversity and unrevealed reactivity. Herein we report a gold-catalyzed cascade protocol for the assembly of polycarbocyclic frameworks in high yields under mild reaction conditions. Mechanistic studies indicate that the unique β-aryl gold-carbene species, generated via gold-promoted 6-endo-dig diazo-yne cyclization, is the key intermediate in this reaction, followed by a [4 + 2]-cycloaddition with external alkenes. In comparison to the well-documented metal carbene cycloadditions, this carbene intermediate serves as a 4-C synthon in a cycloaddition reaction. A variety of elusive π-conjugated polycyclic hydrocarbons (CPHs) with multiple substituents are readily accessible from the initially generated products by a mild oxidation procedure.
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Affiliation(s)
- Cheng Zhang
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
- Organisch-Chemisches Institut, Heidelberg University, 69120, Heidelberg, Germany
| | - Kemiao Hong
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Chao Pei
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Su Zhou
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, 69120, Heidelberg, Germany.
| | - Xinfang Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, China.
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14
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Zimin DP, Dar’in DV, Kukushkin VY, Dubovtsev AY. Oxygen Atom Transfer as Key To Reverse Regioselectivity in the Gold(I)-Catalyzed Generation of Aminooxazoles from Ynamides. J Org Chem 2020; 86:1748-1757. [DOI: 10.1021/acs.joc.0c02584] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dmitry P. Zimin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Dmitry V. Dar’in
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
| | - Vadim Yu. Kukushkin
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
- South Ural State University, 76, Lenin Av., Chelyabinsk 454080, Russian Federation
| | - Alexey Yu. Dubovtsev
- Saint Petersburg State University, Universitetskaya Nab. 7/9, 199034 Saint Petersburg, Russian Federation
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15
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Lynch CC, Sripada A, Wolf C. Asymmetric synthesis with ynamides: unique reaction control, chemical diversity and applications. Chem Soc Rev 2020; 49:8543-8583. [PMID: 33073285 PMCID: PMC8383824 DOI: 10.1039/d0cs00769b] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ynamides are among the most powerful building blocks in organic synthesis and have become invaluable starting materials for the construction of multifunctional compounds and challenging architectures that would be difficult to prepare otherwise. The rapidly growing popularity originates from the unique reactivity and ease of manipulation of the polarized ynamide triple bond, the advance of practical methods for making them, and the simplicity of storage and handling. These attractive features and the demonstration of numerous synthetic applications have spurred the development of intriguing asymmetric reaction strategies during the last decade. An impressive variety of chemo-, regio- and stereoselective carbon-carbon and carbon-heteroatom bond forming reactions with ynamides have been developed and now significantly enrich the toolbox of synthetic chemists. This review provides a comprehensive overview of asymmetric ynamide chemistry since 2010 with a focus on the general scope, current limitations, stereochemical reaction control and mechanistic aspects.
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Affiliation(s)
- Ciarán C Lynch
- Department of Chemistry, Georgetown University, 37th and O Streets, Washington, DC 20057, USA.
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16
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Campeau D, León Rayo DF, Mansour A, Muratov K, Gagosz F. Gold-Catalyzed Reactions of Specially Activated Alkynes, Allenes, and Alkenes. Chem Rev 2020; 121:8756-8867. [DOI: 10.1021/acs.chemrev.0c00788] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Dominic Campeau
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - David F. León Rayo
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Ali Mansour
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Karim Muratov
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
| | - Fabien Gagosz
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, K1N 6N5 Ottawa, Canada
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17
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Luo J, Chen GS, Chen SJ, Yu JS, Li ZD, Liu YL. Exploiting Remarkable Reactivities of Ynamides: Opportunities in Designing Catalytic Enantioselective Reactions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04180] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jian Luo
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Guo-Shu Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Shu-Jie Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Zhao-Dong Li
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University Wushan Street five road No. 483, Guangzhou 510642, China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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18
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Wu A, Qian H, Zhao W, Sun J. Benzannulation of isobenzopyryliums with electron-rich alkynes: a modular access to β-functionalized naphthalenes. Chem Sci 2020; 11:7957-7962. [PMID: 34094164 PMCID: PMC8163147 DOI: 10.1039/d0sc02502j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Described here is a modular strategy for the rapid synthesis of β-functionalized electron-rich naphthalenes, a family of valuable molecules lacking general access previously. Our approach employs an intermolecular benzannulation of in situ generated isobenzopyrylium ions with various electron-rich alkynes, which were not well utilized for this type of reaction before. These reactions not only feature a broad scope, complete regioselectivity, and mild conditions, but also exhibit unusual product divergence depending on the substrate substitution pattern. This divergence allows further expansion of the product diversity. Control experiments provided preliminary insights into the reaction mechanism. A substituent-controlled divergent benzannulation provides rapid access to various β-functionalized naphthalenes from electron-rich alkynes.![]()
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Affiliation(s)
- An Wu
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Hui Qian
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Wanxiang Zhao
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
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19
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Zang W, Wei Y, Shi M. Divergent Construction of Fully Substituted Pyrroles and Cyclopentadiene Derivatives by Ynamide Annulations: 1,2-Cyclopropyl Migration versus Proton Transfer. Org Lett 2020; 22:5466-5472. [DOI: 10.1021/acs.orglett.0c01819] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenqing Zang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, University of Chinese Academy of Science, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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20
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Recent Progress in N-Heterocyclic Carbene Gold-Catalyzed Reactions of Alkynes Involving Oxidation/Amination/Cycloaddition. Catalysts 2020. [DOI: 10.3390/catal10030350] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Recent rapid development in homogeneous gold catalysis affords an alternative and particularly thriving strategy for the generation of gold carbenes through gold-catalyzed oxidation/amination/cycloaddition of alkynes, while it avoids the employment of hazardous and potentially explosive diazo compounds as starting materials for carbene generation. In addition to facile and secure operation, gold carbenes generated in this strategy display good chemoselectivity distinct from other metal carbenes produced from the related diazo approach. N-heterocyclic carbene (NHC) gold is a special metal complex that can be used as ancillary ligands, which provides enhanced stability and can also act as an efficient chiral directing group. In this review, we will present an overview of these recent advances in alkyne oxidation/amination/cycloaddition by highlighting their specificity and applicability, aiming to facilitate progress in this very exciting area of research.
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21
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Chen A, Yu H, Yan J, Huang H. Lewis Acid Catalyzed Electrophilic Aminomethyloxygenative Cyclization of Alkynols with N,O-Aminals. Org Lett 2020; 22:755-759. [DOI: 10.1021/acs.orglett.9b04630] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Anrong Chen
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, P.R. China
| | - Houjian Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, P.R. China
| | - Jiaqi Yan
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, P.R. China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026, P.R. China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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22
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Zhou L, Yang L, Dai S, Gao Y, Fang R, Kirillov AM, Yang L. Insight into the reaction mechanism and chemoselectivity in the cycloaddition of ynamides and isoxazoles with H2O. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01964b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The mechanism and chemoselectivity in the cycloaddition of ynamides and isoxazoles have been explored by the density functional theory (DFT) in model systems composed of a Brønsted acid (HNTf2), gold(i) [IPrAuNTf2] or platinum(ii) (PtCl2/CO) catalyst.
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Affiliation(s)
- Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Songshan Dai
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yuanyuan Gao
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Lizi Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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23
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Lin L, Zeng X, Xu B. Synthesis of Z-Enamides through Heterogeneous Gold-Catalyzed Stereoselective Hydrogenation of Ynamides. J Org Chem 2019; 84:11240-11246. [PMID: 31385517 DOI: 10.1021/acs.joc.9b01450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A facile synthesis of Z-enamides via heterogeneous Au/TiO2 catalyzed stereoselective hydrogenation of ynamides has been developed. Easy to handle and inexpensive ammonium formate was used as the hydrogen source, and Z-enamides were formed in a highly stereoselective manner. The commercially available gold nanoparticle catalyst could be recycled multiple times without a significant loss of activity.
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Affiliation(s)
- Long Lin
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , China
| | - Xiaojun Zeng
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , China
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24
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Thévenin M, Thoret S, Dubois J. First Total Synthesis of Original Chalcone-Flavone Dimers as Cissampeloflavone Analogues. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marion Thévenin
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Université Paris Sud; Université Paris Saclay; 1 avenue de la Terrasse 91198 Gif sur Yvette CEDEX France
| | - Sylviane Thoret
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Université Paris Sud; Université Paris Saclay; 1 avenue de la Terrasse 91198 Gif sur Yvette CEDEX France
| | - Joëlle Dubois
- Institut de Chimie des Substances Naturelles; CNRS UPR2301; Université Paris Sud; Université Paris Saclay; 1 avenue de la Terrasse 91198 Gif sur Yvette CEDEX France
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25
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Pandit YB, Sahani RL, Liu RS. Gold-Catalyzed Michael-Type Reactions and [4 + 2]-Annulations between Propiolates and 1,2-Benzisoxazoles with Ester-Directed Chemoselectivity. Org Lett 2018; 20:6655-6658. [DOI: 10.1021/acs.orglett.8b02663] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yashwant Bhaskar Pandit
- Frontier Research Centers of Matter Science and Technology and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R.O.C
| | - Rajkumar Lalji Sahani
- Frontier Research Centers of Matter Science and Technology and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R.O.C
| | - Rai-Shung Liu
- Frontier Research Centers of Matter Science and Technology and Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan, R.O.C
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26
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Bernar I, Blanco‐Ania D, Stok SJ, Sotorríos L, Gómez‐Bengoa E, Rutjes FPJT. Synthesis of 3-Amino-1-benzothiophene-1,1-diones by Alkyne Directed Hydroarylation and 1/N→3/C-Sulfonyl Migration. European J Org Chem 2018; 2018:5435-5444. [PMID: 30443160 PMCID: PMC6220774 DOI: 10.1002/ejoc.201801062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 01/26/2023]
Abstract
A completely regioselective and highly stereoselective palladium-catalyzed intramolecular hydroarylation of arenesulfonyl ynamines to benzothiazoles was developed. The presence of an electron-withdrawing group on the triple bond of the sulfonyl ynamine was crucial for the success of the reaction and our mechanistic studies suggest an alkyne-directed 5-exo-dig cyclization pathway. The products easily underwent photoinduced rearrangement to 3-amino-1-benzothiophene-1,1-diones (up to 35 % yields after two steps).
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Affiliation(s)
- Ivan Bernar
- Radboud UniversityInstitute for Molecules and MaterialsHeyendaalseweg 1356525AJ Nijmegenthe Netherlands
| | - Daniel Blanco‐Ania
- Radboud UniversityInstitute for Molecules and MaterialsHeyendaalseweg 1356525AJ Nijmegenthe Netherlands
| | - Sophie J. Stok
- Radboud UniversityInstitute for Molecules and MaterialsHeyendaalseweg 1356525AJ Nijmegenthe Netherlands
| | - Lia Sotorríos
- Department of Organic Chemistry IUniversity of the Basque Country (UPV/EHU)P.O. Box 107220080Donostia‐San SebastiánSpain
| | - Enrique Gómez‐Bengoa
- Department of Organic Chemistry IUniversity of the Basque Country (UPV/EHU)P.O. Box 107220080Donostia‐San SebastiánSpain
| | - Floris P. J. T. Rutjes
- Radboud UniversityInstitute for Molecules and MaterialsHeyendaalseweg 1356525AJ Nijmegenthe Netherlands
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27
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Xue J, Gao E, Wang XN, Chang J. Metal-Free Formal Inverse-Electron-Demand Diels-Alder Reaction of 1,2-Diazines with Ynamides. Org Lett 2018; 20:6055-6058. [PMID: 30234310 DOI: 10.1021/acs.orglett.8b02431] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly effective metal-free formal inverse-electron-demand Diels-Alder reaction of 1,2-diazines with ynamides has been developed. This catalytic protocol is more environmentally friendly and allows for the construction of 2-aminonaphthalenes and 2-aminoanthracenes from 1,2-diazines and ynamides in good to high yields with wide diversity and functional group tolerance.
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Affiliation(s)
- Jian Xue
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan 450001 , P. R. China
| | - Erhui Gao
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan 450001 , P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan 450001 , P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan 450001 , P. R. China
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28
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Shen Y, Li Q, Xu G, Cui S. Coupling of Carboxylic Acids with Ynamides and Subsequent Rearrangement for the Synthesis of Imides/Amides. Org Lett 2018; 20:5194-5197. [DOI: 10.1021/acs.orglett.8b02134] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yangyong Shen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Qi Li
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Gang Xu
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
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29
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Heterogeneous gold(I)-catalyzed [2 + 2 + 2] annulation between ynamides and nitriles: Straightforward synthesis of tetrasubstituted pyrimidines. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Chen R, Zeng L, Huang B, Shen Y, Cui S. Decarbonylative Coupling of α-Keto Acids and Ynamides for Synthesis of β-Keto Imides. Org Lett 2018; 20:3377-3380. [DOI: 10.1021/acs.orglett.8b01302] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Renjie Chen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Linwei Zeng
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Bo Huang
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Yangyong Shen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, P. R. China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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31
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Zhang ZX, Zhu BH, Xie PX, Tang JQ, Li XL, Zhu C, Yin YW, Ye LW. Facile synthesis of α-alkoxyl amides via scandium-catalyzed oxidative reaction between ynamides and alcohols. RSC Adv 2018; 8:18308-18315. [PMID: 35541116 PMCID: PMC9080523 DOI: 10.1039/c8ra03842b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/11/2018] [Indexed: 01/31/2023] Open
Abstract
A novel and efficient scandium-catalyzed oxidative reaction between ynamides and alcohols for the facile synthesis of various α-alkoxyl amides is reported in this paper. The reaction avoids the need for the use of α-diazo carbonyls which are unstable and may cause some safety concerns. Instead, by using alkynes as the starting materials, this protocol features readily available substrates, compatibility with a broad range of functional groups, simple procedure, mild reaction conditions, and high chemoselectivity.
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Affiliation(s)
- Zhi-Xin Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Bo-Han Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Pei-Xi Xie
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Jia-Qi Tang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xin-Ling Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Chunyin Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang 212013 China
| | - Ying-Wu Yin
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, 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 for Chemical Biology of Fujian Province, 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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32
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Chen X, Merrett JT, Hong Chan PW. Gold-Catalyzed Formal [4 + 2] Cycloaddition of 5-(Ethynylamino)pent-2-yn-1-yl Esters to 1,2,3,5-Tetrahydrobenzo[g]quinolines. Org Lett 2018; 20:1542-1545. [DOI: 10.1021/acs.orglett.8b00267] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaoyu Chen
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | | | - Philip Wai Hong Chan
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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33
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Zhao Y, Wang C, Hu Y, Wan B. Brønsted acid-catalyzed formal [5+2+1] cycloaddition of ynamides and isoxazoles with water: access to oxygen-bridged tetrahydro-1,4-oxazepines. Chem Commun (Camb) 2018; 54:3963-3966. [DOI: 10.1039/c8cc00881g] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unique property of the Brønsted acid, as well as introducing a small amount of water, shows distinct chemoselectivity from the corresponding gold-catalyzed cycloadditions.
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Affiliation(s)
- Yingying Zhao
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
- University of Chinese Academy of Sciences
| | - Chunxiang Wang
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Yancheng Hu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
| | - Boshun Wan
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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34
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Shen Y, Wang C, Chen W, Cui S. Cascade reaction involving Diels–Alder cascade: modular synthesis of amino α-pyrones, indolines and anilines. Org Chem Front 2018. [DOI: 10.1039/c8qo00939b] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A cascade reaction involving Diels–Alder reaction for modular synthesis of amino α-pyrones, indolines and anilines is reported.
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Affiliation(s)
- Yangyong Shen
- Institute of Drug Discovery and Design
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Chaorong Wang
- Institute of Drug Discovery and Design
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
| | - Wei Chen
- Department of Food Science and Nutrition
- Zhejiang University
- Hangzhou 310058
- China
| | - Sunliang Cui
- Institute of Drug Discovery and Design
- College of Pharmaceutical Sciences
- Zhejiang University
- Hangzhou 310058
- China
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35
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Chen R, Liu Y, Cui S. 1,4-Conjugate addition/esterification of ortho-quinone methides in a multicomponent reaction. Chem Commun (Camb) 2018; 54:11753-11756. [DOI: 10.1039/c8cc07328g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel 1,4-conjugate addition/esterification of ortho-quinone methides in a multicomponent reaction has been developed for facilely accessing 3,3-diarylpropanamides.
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Affiliation(s)
- Renjie Chen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University
- Hangzhou 310058
- P. R. China
| | - Yu Liu
- Sate Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University
- Hangzhou 310058
- China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University
- Hangzhou 310058
- P. R. China
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36
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Huang B, Zeng L, Shen Y, Cui S. Nickel-catalyzed acetamidation and lactamization of arylboronic acids. Chem Commun (Camb) 2017; 53:11996-11999. [PMID: 29048076 DOI: 10.1039/c7cc07055a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A nickel-catalyzed acetamidation and lactamization of arylboronic acids via a one-pot reaction with ynamides and N-hydroxyphthalimide is described. This protocol features with mild reaction conditions and a broad substrate scope, and has been successfully applied to late-stage functionalization of pharmaceuticals. Moreover, control reactions were conducted to elucidate a plausible mechanism.
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Affiliation(s)
- Bo Huang
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, Zhejiang, China.
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37
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Duret G, Le Fouler V, Bisseret P, Bizet V, Blanchard N. Diels-Alder and Formal Diels-Alder Cycloaddition Reactions of Ynamines and Ynamides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700986] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Guillaume Duret
- CNRS, LCM UMR 7509; Université de Strasbourg; 67000 Strasbourg France
| | - Vincent Le Fouler
- CNRS, LCM UMR 7509; Université de Strasbourg; 67000 Strasbourg France
| | - Philippe Bisseret
- CNRS, LCM UMR 7509; Université de Strasbourg; 67000 Strasbourg France
| | - Vincent Bizet
- CNRS, LCM UMR 7509; Université de Strasbourg; 67000 Strasbourg France
| | - Nicolas Blanchard
- CNRS, LCM UMR 7509; Université de Strasbourg; 67000 Strasbourg France
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38
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Shen Y, Huang B, Zeng L, Cui S. Single Reactant Replacement Approach of Passerini Reaction: One-Pot Synthesis of β-Acyloxyamides and Phthalides. Org Lett 2017; 19:4616-4619. [DOI: 10.1021/acs.orglett.7b02232] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Yangyong Shen
- Institute of Drug Discovery
and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bo Huang
- Institute of Drug Discovery
and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Linwei Zeng
- Institute of Drug Discovery
and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sunliang Cui
- Institute of Drug Discovery
and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
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39
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Yenice I, Basceken S, Balci M. Nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole derivatives: Synthesis of pyrrolopyrazinone, pyrrolotriazinone, and pyrrolooxazinone moieties. Beilstein J Org Chem 2017; 13:825-834. [PMID: 28546840 PMCID: PMC5433174 DOI: 10.3762/bjoc.13.83] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 04/07/2017] [Indexed: 11/29/2022] Open
Abstract
Intramolecular nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole esters is described. Efficient routes towards the synthesis of pyrrolopyrazinone, pyrrolotriazinone and pyrrolooxazinone have been developed. First, N-alkyne-substituted pyrrole ester derivatives were synthesized. Introduction of various substituents into the alkyne functionality was accomplished by a copper-catalyzed cross-coupling reaction. Nucleophilic cyclization of N-alkyne-substituted methyl 1H-pyrrole-2-carboxylates with hydrazine afforded the 6-exo-dig/6-endo-dig cyclization products depending on the electronic nature of the substituents attached to the alkyne. On the other hand, cyclization of N-alkyne-substituted methyl 1H-pyrrole-2-carboxylates with iodine only resulted in the formation of the 6-endo-dig cyclization product regardless of the substitution of the alkyne functionality.
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Affiliation(s)
- Işıl Yenice
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Sinan Basceken
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
- Department of Chemistry, Hitit University, 19030 Corum, Turkey
| | - Metin Balci
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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40
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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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41
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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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42
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Siva Reddy A, Leela Siva Kumari A, Swamy KK. Palladium-catalyzed regioselective synthesis of benzosultams from functionalized ynamides and benzotriazoles/tetrazoles. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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43
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Huang B, Zeng L, Shen Y, Cui S. One-Pot Multicomponent Synthesis of β-Amino Amides. Angew Chem Int Ed Engl 2017; 56:4565-4568. [DOI: 10.1002/anie.201700840] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/24/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Huang
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Linwei Zeng
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Yangyong Shen
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Sunliang Cui
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
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44
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Huang B, Zeng L, Shen Y, Cui S. One-Pot Multicomponent Synthesis of β-Amino Amides. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700840] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bo Huang
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Linwei Zeng
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Yangyong Shen
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
| | - Sunliang Cui
- Institute of Drug Discovery and Design; College of Pharmaceutical Sciences; Zhejiang University; 866 Yuhangtang Road, Hangzhou 310058 Zhejiang China
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45
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Zhao Y, Hu Y, Wang C, Li X, Wan B. Tf2NH-Catalyzed Formal [3 + 2] Cycloaddition of Ynamides with Dioxazoles: A Metal-Free Approach to Polysubstituted 4-Aminooxazoles. J Org Chem 2017; 82:3935-3942. [DOI: 10.1021/acs.joc.7b00076] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yingying Zhao
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 10049, China
| | - Yancheng Hu
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
| | - Chunxiang Wang
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
| | - Xincheng Li
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
| | - Boshun Wan
- Dalian
Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, China
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46
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Yang T, Ehara M. Computational Studies on Reaction Mechanism and Origins of Selectivities in Nickel-Catalyzed (2 + 2 + 2) Cycloadditions and Alkenylative Cyclizations of 1,6-Ene-Allenes and Alkenes. J Org Chem 2017; 82:2150-2159. [PMID: 28094968 DOI: 10.1021/acs.joc.6b02957] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The reaction mechanism and origins of ligand-controlled selectivity, regioselectivity, and stereoselectivity of Ni-catalyzed (2 + 2 + 2) cycloadditions and alkenylative cyclizations of 1,6-ene-allenes and alkenes were studied by using density functional theory. The catalytic cycle involves intermolecular oxidative coupling and an intramolecular concerted 1,4-addition step to afford a stable metallacycloheptane intermediate; these steps determine both the regioselectivity and stereoselectivity. Subsequent C-C reductive elimination leads to the cyclohexane product, whereas the β-hydride elimination leads to the trans-diene product. The selectivity between (2 + 2 + 2) cycloadditions and alkenylative cyclizations is controlled by the ligand. Irrespective of the nature of the terminal substituents on the ene-allene and alkene, the P(o-tol)3 ligand always favors the C-C reductive elimination, resulting in the cyclohexane product. On the other hand, the flexibility of the PBu3 ligand means that electronic and steric factors play important roles. Electron-withdrawing groups such as CO2Me in the ene-allene terminal substituent induce obvious substrate-ligand repulsion and destabilize the C-C reductive elimination, giving rise to the trans-diene product.
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Affiliation(s)
- Tao Yang
- Institute for Molecular Science and Research Center for Computational Science, Nishigonaka 38, Myodaiji, Okazaki 444-8585, Japan.,Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University , Kyoto 615-8520, Japan
| | - Masahiro Ehara
- Institute for Molecular Science and Research Center for Computational Science, Nishigonaka 38, Myodaiji, Okazaki 444-8585, Japan.,Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University , Kyoto 615-8520, Japan
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47
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612243] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hong Kong China
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48
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Cui JF, Ko HM, Shing KP, Deng JR, Lai NCH, Wong MK. C,O-Chelated BINOL/Gold(III) Complexes: Synthesis and Catalysis with Tunable Product Profiles. Angew Chem Int Ed Engl 2017; 56:3074-3079. [PMID: 28165658 DOI: 10.1002/anie.201612243] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Indexed: 01/28/2023]
Abstract
Unprecedented stable BINOL/gold(III) complexes, adopting a novel C,O-chelation mode, were synthesized by a modular approach through combination of 1,1'-binaphthalene-2,2'-diols (BINOLs) and cyclometalated gold(III) dichloride complexes [(C^N)AuCl2 ]. X-ray crystallographic analysis revealed that the bidentate BINOL ligands tautomerized and bonded to the AuIII atom through C,O-chelation to form a five-membered ring instead of the conventional O,O'-chelation giving a seven-membered ring. These gold(III) complexes catalyzed acetalization/cycloisomerization and carboalkoxylation of ortho-alkynylbenzaldehydes with trialkyl orthoformates.
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Affiliation(s)
- Jian-Fang Cui
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Hok-Ming Ko
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Ka-Pan Shing
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jie-Ren Deng
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Nathanael Chun-Him Lai
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - Man-Kin Wong
- State Key Laboratory of Chirosciences, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
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49
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Giri SS, Lin LH, Jadhav PD, Liu RS. Gold-Catalyzed 1,4-Carbooxygenation of 3-En-1-ynamides with Allylic and Propargylic AlcoholsviaNon-Claisen Pathways. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601092] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sovan Sundar Giri
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan, ROC
| | - Li-Hsuan Lin
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan, ROC
| | | | - Rai-Shung Liu
- Department of Chemistry; National Tsing-Hua University; Hsinchu Taiwan, ROC
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50
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Cheng X, Zhu L, Lin M, Chen J, Huang X. Rapid access to cyclopentadiene derivatives through gold-catalyzed cycloisomerization of ynamides with cyclopropenes by preferential activation of alkenes over alkynes. Chem Commun (Camb) 2017; 53:3745-3748. [DOI: 10.1039/c7cc01368j] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Double bond activation: the current transformation represents a rare example of preferential activation of alkenes over alkynes under gold catalysis.
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Affiliation(s)
- Xing Cheng
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Lei Zhu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Meijun Lin
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
| | - Jianxin Chen
- College of Chemistry and Chemical Engineering
- Fujian Normal University
- Fuzhou
- P. R. China
| | - Xueliang Huang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- P. R. China
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