1
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Zhao K, Liu Q, Cheng S, Zhao Z, Li X. PhI(OAc) 2-Mediated Regioselective Hydrothiolation of Allenamides with Thiophenol via a Radical Process: Synthesis of Vinyl Sulfides. J Org Chem 2023; 88:15626-15638. [PMID: 37885139 DOI: 10.1021/acs.joc.3c01605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
An efficient PhI(OAc)2-mediated regioselective hydrothiolation of allenamides with thiophenol via a radical process was developed to create a workable route to vinyl sulfides. The reaction exhibits a good functional group tolerance and high efficiency, affording the products in good to excellent yields. Mechanistic investigations indicated that the radical cascade proceeds through an allyl radical intermediate, which is formed via the addition of the PhS radical to the central carbon of allenamides. Moreover, the reaction was also efficient with selenophenol, providing the corresponding product, vinyl selenide, in a 99% yield.
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Affiliation(s)
- Kun Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Qingsong Liu
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Song Cheng
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Zhigang Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
| | - Xiaoxiao Li
- Key Laboratory of Basic Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, Sichuan 610041, P. R. China
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2
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Cong X, Huang L, Hou Z. C–H functionalization with alkenes, allenes, and alkynes by half-sandwich rare-earth catalysts. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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3
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Pandit YB, Liu RS. Dynamic Kinetic Resolution in Gold-Catalyzed (4 + 2)-Annulations between Alkynyl Benzaldehydes and Allenamides to Yield Enantioenriched All-Carbon Diarylalkylmethane Derivatives. Org Lett 2021; 24:548-553. [PMID: 34967633 DOI: 10.1021/acs.orglett.1c03963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This work reports the synthesis of diarylmethane derivatives via gold-catalyzed (4 + 2)-annulations between alkynyl benzaldehydes and allenamides, followed by an aza-Claisen rearrangement. Deuterium labeling and crossover experiments have been performed to confirm this proposed mechanism. With racemic 3-substituted allenamides in a substrate ratio (1:1), we employ chiral gold catalysts to achieve a dynamic kinetic resolution to obtain enantioenriched diarylalkylmethane derivatives with high e.r. levels (up to 93:7).
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Affiliation(s)
- Yashwant Bhaskar Pandit
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing Hua University, Hsinchu, 30013 Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing Hua University, Hsinchu, 30013 Taiwan, ROC
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4
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Nicholls LDM, Wennemers H. Synergistic Peptide and Gold Catalysis: Enantioselective Addition of Branched Aldehydes to Allenamides. Chemistry 2021; 27:17559-17564. [PMID: 34496089 PMCID: PMC9293318 DOI: 10.1002/chem.202103197] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 01/11/2023]
Abstract
The combination of a peptide catalyst and a gold catalyst is presented for enantioselective addition reactions between branched aldehydes and allenamides. The two catalysts act in concert to provide γ,δ‐enamide aldehydes bearing a fully substituted, benzylic stereogenic center – a structural motif common in many natural products and therapeutically active compounds – with good yields and enantioselectivities. The reaction tolerates a variety of alkyl and alkoxy substituted aldehydes and the products can be elaborated into several chiral building blocks bearing either 1,4‐ or 1,5‐ functional group relationships. Mechanistic studies showed that the conformational features of the peptide are important for both the catalytic efficiency and stereochemistry, while a balance of acid/base additives is key for ensuring formation of the desired product over undesired side reactions.
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Affiliation(s)
- Leo D M Nicholls
- Laboratory of Organic Chemistry ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
| | - Helma Wennemers
- Laboratory of Organic Chemistry ETH Zürich, Vladimir-Prelog-Weg 3, 8093, Zürich, Switzerland
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5
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Regio- and stereoselective synthesis of cyclobutanes by nickel-catalyzed homodimerizative [2 + 2] cycloaddition using allenamides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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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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7
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Abstract
Three- and four-membered rings, widespread motifs in nature and medicinal chemistry, have fascinated chemists ever since their discovery. However, due to energetic considerations, small rings are often difficult to assemble. In this regard, homogeneous gold catalysis has emerged as a powerful tool to construct these highly strained carbocycles. This review aims to provide a comprehensive summary of all the major advances and discoveries made in the gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their corresponding heterocyclic or heterosubstituted analogs.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Cristina Garcı A-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica 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 Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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8
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Abstract
Four carbon ring systems are frequently present in natural products with remarkable biological activities such as terpenoids, alkaloids, and steroids. The development of new strategies for the assembly of these structures in a rapid and efficient manner has attracted the interest of synthetic chemists for a long time. The current research is focused mainly on the development of synthetic methods that can be performed under mild reaction conditions with a high tolerance to functional groups. In recent years, gold complexes have turned into excellent candidates for this aim, owing to their high reactivity, and are thus capable of promoting a wide range of transformations under mild conditions. Their remarkable efficiency has been thoroughly demonstrated in the synthesis of complex organic molecules from simple starting materials. This review summarizes the main synthetic strategies described for gold-catalyzed four-carbon ring formation, as well as their application in the synthesis of natural products.
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9
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Wang C, Xu G, Shao Y, Tang S, Sun J. Gold-Catalyzed Intermolecular Formal [4 + 2 + 2]-Cycloaddition of Anthranils with Allenamides. Org Lett 2020; 22:5990-5994. [PMID: 32678606 DOI: 10.1021/acs.orglett.0c02083] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The construction of eight-membered rings is a challenging issue due to unfavorable transannular strain and entropic barriers. We report herein a gold-catalyzed formal [4 + 2 + 2] cycloaddition reaction of anthranils with allenamides to deliver oxa-bridged eight-membered heterocycles in accepted yields with unique E/Z configuration. Moreover, the asymmetric [4 + 2 + 2] cycloaddition by using chiral phosphoramidite gold catalyst has also been conducted.
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Affiliation(s)
- Cheng Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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10
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PhI(OAc)2-mediated synthesis of propargylic N, O-acetals by 1, 2-addition of alcohols to allenamides. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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11
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Yuan X, Tan X, Ding N, Liu Y, Li X, Zhao Z. NIS-promoted intermolecular bis-sulfenylation of allenamides via a two-step radical process: synthesis of 1,3-dithioethers. Org Chem Front 2020. [DOI: 10.1039/d0qo00690d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The first report of NIS-promoted two-step radical addition of thiols to allenamides to provide an efficient route for accessing 1,3-dithioethers.
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Affiliation(s)
- Xiao Yuan
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Xiaoju Tan
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Na Ding
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Yongchun Liu
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Xiaoxiao Li
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
| | - Zhigang Zhao
- Key Laboratory of Basic Chemistry of the State Ethnic Commission
- School of Chemistry and Environment
- Southwest Minzu University
- Chengdu 610041
- PR China
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12
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Chen L, Yu J, Tang S, Shao Y, Sun J. Gold-Catalyzed Highly Diastereoselective Oxy-Propargylamination of Allenamides with C-Alkynyl N-Boc N,O-Acetals. Org Lett 2019; 21:9050-9054. [DOI: 10.1021/acs.orglett.9b03449] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Long Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianliang Yu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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13
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Yan F, Liang H, Ai B, Liang W, Jiao L, Yao S, Zhao P, Liu Q, Dong Y, Liu H. Palladium-catalyzed intermolecular [4 + 2] formal cycloaddition with (Z)-3-iodo allylic nucleophiles and allenamides. Org Biomol Chem 2019; 17:2651-2656. [PMID: 30778484 DOI: 10.1039/c8ob03072c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly chemo- and regioselective [4 + 2] formal cycloaddition of (Z)-3-iodo allylic nucleophiles and allenamides catalyzed by palladium is reported. The methodology proceeds under mild reaction conditions and is tolerant of alkyl and aryl functional groups. The SN2' substitution at the proximal C[double bond, length as m-dash]C bond performed against the Heck or SN2 pathway delivered a variety of 2-amino-dihydropyrans and 2-amino-tetrahydropiperidines in moderate to satisfactory yields. The [4 + 2] formal cycloaddition derivatives are convertible to interesting scaffolds 2,6,7,7a-tetrahydropyrano[2,3-b]pyrrole and 2,6,7,7a-tetrahydro-1H-pyrrolo[2,3-b]pyridine derivatives via ring-closing metathesis (RCM) with Grubbs catalyst II.
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Affiliation(s)
- Fachao Yan
- School of Chemistry and Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China.
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14
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Arai S, Kawata Y, Amako Y, Nishida A. Nickel-catalyzed [2 + 2] cycloaddition reaction using bisallenes. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151168] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Chen J, Gao S, Gorden JD, Chen M. Stereoselective Syntheses of γ-Boryl Substituted syn-β-Alkoxy- and syn-β-Amino-homoallylic Alcohols via a Regio- and Stereoselective Allene Diboration and Aldehyde Allylboration Reaction Sequence. Org Lett 2019; 21:4638-4641. [DOI: 10.1021/acs.orglett.9b01535] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jichao Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Shang Gao
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ming Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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16
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Rigo M, Habraken ERM, Bhattacharyya K, Weber M, Ehlers AW, Mézailles N, Slootweg JC, Müller C. Phosphinine‐Based Ligands in Gold‐Catalyzed Reactions. Chemistry 2019; 25:8769-8779. [PMID: 30994944 DOI: 10.1002/chem.201900938] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Massimo Rigo
- Institut für Chemie und BiochemieFreie Universität Berlin Fabeckstrasse 34–36 14195 Berlin Germany
| | - Evi R. M. Habraken
- Van't Hoff Institute of Molecular SciencesUniversiteit van Amsterdam Science Park 904 1090 GD Amsterdam The Netherlands
| | - Koyel Bhattacharyya
- Systèmes de Hautes EnergiesUniversité Paul Sabatier 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Manuela Weber
- Institut für Chemie und BiochemieFreie Universität Berlin Fabeckstrasse 34–36 14195 Berlin Germany
| | - Andreas W. Ehlers
- Van't Hoff Institute of Molecular SciencesUniversiteit van Amsterdam Science Park 904 1090 GD Amsterdam The Netherlands
- Department of Chemistry, Science FacultyUniversity of Johannesburg P.O. Box 254 2092 Auckland Park, Johannesburg South Africa
| | - Nicolas Mézailles
- Systèmes de Hautes EnergiesUniversité Paul Sabatier 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - J. Chris Slootweg
- Van't Hoff Institute of Molecular SciencesUniversiteit van Amsterdam Science Park 904 1090 GD Amsterdam The Netherlands
| | - Christian Müller
- Institut für Chemie und BiochemieFreie Universität Berlin Fabeckstrasse 34–36 14195 Berlin Germany
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17
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Pirovano V, Brambilla E, Rizzato S, Abbiati G, Bozzi M, Rossi E. Gold-Catalyzed Cascade Reactions of 4 H-Furo[3,2- b]indoles with Allenamides: Synthesis of Indolin-3-one Derivatives. J Org Chem 2019; 84:5150-5166. [PMID: 30919623 DOI: 10.1021/acs.joc.9b00143] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Merging the ability of cationic gold(I) catalysts to activate unsaturated π-systems with the electrophiles-driven ring-opening reactions of furans, we describe a new approach to synthesize 2-spiroindolin-3-ones from 4 H-furo[3,2- b]indoles. The reaction occurs through a cascade sequence involving addition of a gold-activated allene to the furan moiety of the starting furoindole followed by a ring-opening/ring-closing event affording 2-spirocyclopentane-1,2-dihydro-3 H-indolin-3-ones in moderate to good yields.
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Affiliation(s)
- Valentina Pirovano
- Dipartimento di Scienze Farmaceutiche-Sezione di Chimica Generale e Organica "A. Marchesini" , Università degli Studi di Milano , Via Venezian 21 , 20133 Milano , Italy
| | - Elisa Brambilla
- Dipartimento di Scienze Farmaceutiche-Sezione di Chimica Generale e Organica "A. Marchesini" , Università degli Studi di Milano , Via Venezian 21 , 20133 Milano , Italy
| | - Silvia Rizzato
- Dipartimento di Chimica , Università degli Studi di Milano , Via Golgi 19 , 20133 Milano , Italy
| | - Giorgio Abbiati
- Dipartimento di Scienze Farmaceutiche-Sezione di Chimica Generale e Organica "A. Marchesini" , Università degli Studi di Milano , Via Venezian 21 , 20133 Milano , Italy
| | - Marta Bozzi
- Dipartimento di Scienze Farmaceutiche-Sezione di Chimica Generale e Organica "A. Marchesini" , Università degli Studi di Milano , Via Venezian 21 , 20133 Milano , Italy
| | - Elisabetta Rossi
- Dipartimento di Scienze Farmaceutiche-Sezione di Chimica Generale e Organica "A. Marchesini" , Università degli Studi di Milano , Via Venezian 21 , 20133 Milano , Italy
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18
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Praveen C. Dexterity of gold catalysis in controlling the regioselectivity of cycloaddition reactions. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2019. [DOI: 10.1080/01614940.2019.1594016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Chandrasekar Praveen
- Materials Electrochemistry Division, Central Electrochemical Research Institute (CSIR Laboratory), Karaikudi, Tamil Nadu, India
- Academy of Scientific and Innovative Research (AcSIR), Central Electrochemical Research Institute (CSIR Laboratory), Karaikudi, Tamil Nadu, India
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19
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Mascareñas JL, Varela I, López F. Allenes and Derivatives in Gold(I)- and Platinum(II)-Catalyzed Formal Cycloadditions. Acc Chem Res 2019; 52:465-479. [PMID: 30640446 PMCID: PMC6497370 DOI: 10.1021/acs.accounts.8b00567] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Indexed: 12/17/2022]
Abstract
Cycloaddition reactions, by involving the formation of at least two bonds and one cycle in a single operation, represent one of the more practical ways to assemble carbo- and heterocyclic structures from simple acyclic precursors. Especially appealing are formal cycloadditions promoted by transition metals, owing to the ability of these reagents to open mechanisms that are not accessible using classical chemistry. Therefore, along the years, a great variety of annulations based on first-, and particularly second-row transition metals have been discovered. Most of these reactions involve inner sphere mechanisms, with the metal participating via standard oxidative addition or reductive elimination processes. Curiously, metals of the third row like platinum and, especially, gold remained largely unexplored, likely because of the belief that they were inert and expensive. However, from the beginning of this century, many groups realized that these metals can open very interesting mechanistic scenarios and promote novel types of transformations. In particular, the π-acidic, carbophilic behavior of gold(I) complexes, together with the possibility of tuning their reactivity using designed ligands, has triggered important activity in the field. Many gold-catalyzed transformations involved addition or cycloisomerization processes, but during recent years, there have been also important advances in the development of formal cycloaddition reactions. While many of these reactions rely on the activation of alkynes, there has been an increasing number of reports that exploit the peculiar reactivities of allenes and derivatives. In this Account, we present recent efforts on the development of platinum- and gold-catalyzed formal cycloadditions of allenes. For the sake of simplicity, we only include annulations initiated by a direct metal-promoted activation of the allene moiety. Thus, alternative Pt- or Au-catalyzed reactions wherein the allene does not interact with the metal catalyst are not covered. Upon activation by the metals, allenes generate allyl-cation alkenylmetal species that can behave as 1,2- or 1,3-carbon dipoles in cycloaddition processes. Especially relevant is the reactivity of allenamides. The presence of the amide substituent provides for the generation of gold intermediates with a good balance of reactivity and stability, which can therefore react with the corresponding partners in a controlled manner. Moreover, despite the difficulties associated with the transfer of stereochemical information from chiral linear gold(I) complexes, a variety of enantioselective gold-catalyzed annulations have been discovered. This Account is organized considering the number of atoms engaged in the annulation process, and when possible, we present the results in a chronological order.
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Affiliation(s)
- José L. Mascareñas
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
| | - Iván Varela
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
| | - Fernando López
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago
de Compostela, 15782 Santiago de Compostela, Spain
- Instituto
de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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20
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He S, Yang M, Kang L. Chemoselectivity-Tunable [5 + 2] Cycloadditions of Allenamides and Oxidopyryliums. HETEROCYCLES 2019. [DOI: 10.3987/com-19-14180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Synthesis of 4H-chromenes by silver (I)-catalyzed cycloaddition of ortho-quinone methides with N-allenamides. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9359-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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22
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Kramm F, Teske J, Ullwer F, Frey W, Plietker B. Anellierte Cyclobutane durch Fe‐katalysierte Cycloisomerisierung von Eninacetaten. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Frederik Kramm
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Johannes Teske
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Franziska Ullwer
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Wolfgang Frey
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Deutschland
| | - Bernd Plietker
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Deutschland
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23
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Kramm F, Teske J, Ullwer F, Frey W, Plietker B. Annelated Cyclobutanes by Fe‐Catalyzed Cycloisomerization of Enyne Acetates. Angew Chem Int Ed Engl 2018; 57:13335-13338. [DOI: 10.1002/anie.201806693] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Frederik Kramm
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Johannes Teske
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Franziska Ullwer
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Bernd Plietker
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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24
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Huang W, Zhang YC, Jin R, Chen BL, Chen Z. Synthesis of Axially Chiral 1,2,3-Triazol-5-ylidene–Au(I) Complex and Its Application in Enantioselective [2 + 2] Cycloaddition of Alleneamides with Alkenes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00524] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Wei Huang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - You-Can Zhang
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Rui Jin
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Bai-Ling Chen
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zili Chen
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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25
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De N, Song CE, Ryu DH, Yoo EJ. Gold-catalyzed [5+2] cycloaddition of quinolinium zwitterions and allenamides as an efficient route to fused 1,4-diazepines. Chem Commun (Camb) 2018; 54:6911-6914. [PMID: 29845164 DOI: 10.1039/c8cc02570c] [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
Herein, we demonstrate a new catalytic cycloaddition of quinolinium zwitterions involving a gold-bound allylic cation intermediate. This ligand-free higher-order cycloaddition efficiently affords a variety of fused 1,4-diazepine derivatives in a stereospecific manner at room temperature.
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Affiliation(s)
- Nirupam De
- Department of Applied Chemistry, Kyung Hee University, Yongin, 17104, Korea
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26
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Okada Y, Maeta N, Nakayama K, Kamiya H. TiO 2 Photocatalysis in Aromatic "Redox Tag"-Guided Intermolecular Formal [2 + 2] Cycloadditions. J Org Chem 2018; 83:4948-4962. [PMID: 29656651 DOI: 10.1021/acs.joc.8b00738] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Since the pioneering work by Macmillan, Yoon, and Stephenson, homogeneous photoredox catalysis has occupied a central place in new reaction development in the field of organic chemistry. While heterogeneous semiconductor photocatalysis has also been studied extensively, it has generally been recognized as a redox option in inorganic chemistry where such "photocatalysis" is most often used to catalyze carbon-carbon bond cleavage and not in organic chemistry where bond formation is usually the focal point. Herein, we demonstrate that titanium dioxide photocatalysis is a powerful redox option to construct carbon-carbon bonds by using intermolecular formal [2 + 2] cycloadditions as models. Synergy between excited electrons and holes generated upon irradiation is expected to promote the overall net redox neutral process. Key for the successful application is the use of a lithium perchlorate/nitromethane electrolyte solution, which exhibits remarkable Lewis acidity to facilitate the reactions of carbon-centered radical cations with carbon nucleophiles. The reaction mechanism is reasonably understood based on both intermolecular and intramolecular single electron transfer regulated by an aromatic "redox tag". Most of the reactions were completed in less than 30 min even in aqueous and/or aerobic conditions without the need for sacrificial reducing or oxidizing substrates generally required for homogeneous photoredox catalysis.
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Affiliation(s)
- Yohei Okada
- Department of Chemical Engineering , Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho , Koganei , Tokyo 184-8588 , Japan
| | - Naoya Maeta
- Department of Chemical Engineering , Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho , Koganei , Tokyo 184-8588 , Japan
| | - Kaii Nakayama
- Department of Chemical Engineering , Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho , Koganei , Tokyo 184-8588 , Japan
| | - Hidehiro Kamiya
- Department of Chemical Engineering , Tokyo University of Agriculture and Technology , 2-24-16 Naka-cho , Koganei , Tokyo 184-8588 , Japan
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27
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Rigo M, Hettmanczyk L, Heutz FJL, Hohloch S, Lutz M, Sarkar B, Müller C. Phosphinines versus mesoionic carbenes: a comparison of structurally related ligands in Au(i)-catalysis. Dalton Trans 2018; 46:86-95. [PMID: 27897296 DOI: 10.1039/c6dt03766f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Gold(i) complexes based on a 2,4,6-triarylphosphinine and a mesoionic carbene derivative have been prepared and characterized crystallographically. Although structurally related, both heterocycles differ significantly in their donor/acceptor properties. These opposed electronic characteristics have been exploited in Au(i)-catalyzed cycloisomerization reactions. For the conversion of the standard substrate dimethyl 2-(3-methylbut-2-enyl)-2-(prop-2-ynyl)malonate the results obtained for both Au-catalysts were found to be very similar and comparable to the ones reported in the literature for other carbene- or phosphorus(iii)-based Au(i)-complexes. In contrast, a clear difference between the catalytic systems was found for the cycloisomerization of the more challenging substrate N-2-propyn-1-ylbenzamide. A combination of the phosphinine-based complex and [AgSbF6] or [Cu(OTf)2] leads to a catalytic species, which is more active than the mesoionic carbene-based coordination compound. We attribute these differences to the stronger π-accepting ability of phosphinines in comparison to mesoionic carbenes. The here presented results show for the first time that phosphinines can be used efficiently as π-accepting ligands in Au(i)-catalyzed cycloisomerization reactions.
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Affiliation(s)
- Massimo Rigo
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Lara Hettmanczyk
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Frank J L Heutz
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Stephan Hohloch
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Martin Lutz
- Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Christian Müller
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
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28
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Mulks FF, Faraji S, Rominger F, Dreuw A, Hashmi ASK. Highly Strained Organogold Complexes and Their Gold- or Rhodium-Catalyzed Isomerizations. Chemistry 2018; 24:71-76. [PMID: 28976042 DOI: 10.1002/chem.201704652] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Indexed: 11/11/2022]
Abstract
The synthesis and characterization of (NHC)(tricyclo[4.1.0.02,7 ]hept-1-yl)gold(I) compounds is reported. Several of these organometallic compounds could be obtained by transmetalation from the organolithium precursor to the corresponding (NHC)gold(I) chlorides. These are by far the most strained stable organogold compounds reported so far. With these new compounds we were able to efficiently and selectively accomplish the first gold-catalyzed rearrangement of organogold compounds, even better yields were obtained by the first rhodium-catalyzed rearrangement of these organogold species. (E/Z)-Mixtures of (NHC)(cyclohex-2-en-1-ylidenemethyl)gold(I) were obtained, none of the other known rearrangement products of tricycloheptanes. Additional insight into the chemical and physical properties of the strained compounds was obtained by spectroscopic and computational studies.
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Affiliation(s)
- Florian F Mulks
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Shirin Faraji
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Andreas Dreuw
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), Im Neuenheimer Feld 368, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
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29
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Wang Y, Zhang P, Di X, Dai Q, Zhang ZM, Zhang J. Gold-Catalyzed Asymmetric Intramolecular Cyclization of N-Allenamides for the Synthesis of Chiral Tetrahydrocarbolines. Angew Chem Int Ed Engl 2017; 56:15905-15909. [DOI: 10.1002/anie.201709595] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 10/23/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Peichao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Xiaoyu Di
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Qiang Dai
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, CAS; 345 Lingling Road Shanghai 200032 China
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30
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Wang Y, Zhang P, Di X, Dai Q, Zhang ZM, Zhang J. Gold-Catalyzed Asymmetric Intramolecular Cyclization of N-Allenamides for the Synthesis of Chiral Tetrahydrocarbolines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709595] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Peichao Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Xiaoyu Di
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Qiang Dai
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical, Processes; School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry, CAS; 345 Lingling Road Shanghai 200032 China
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31
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Zhang H, Ma S, Yuan Z, Chen P, Xie X, Wang X, She X. Palladium-Promoted Neutral 1,4-Brook Rearrangement/Intramolecular Allylic Cyclization Cascade Reaction: A Strategy for the Construction of Vinyl Cyclobutanols. Org Lett 2017; 19:3478-3481. [PMID: 28598159 DOI: 10.1021/acs.orglett.7b01381] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A cascade reaction to build vinyl cyclobutanol rings through activation of vinyl epoxides by palladium, followed by 1,4-Brook rearrangement and intramolecular cyclization with a palladium complex of the resulting carbon anion, is described. Through this cascade reaction, several highly substituted cyclobutanol substrates were achieved in good yields with high stereoselectivities.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Shiqiang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Ziyun Yuan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Peng Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Xiaolei Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University , 222 TianShui South Road, Lanzhou 730000, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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32
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Chakrabarty I, Inamdar SM, Akram MO, Gade AB, Banerjee S, Bera S, Patil NT. [3+2]-Annulation of platinum-bound azomethine ylides with distal C[double bond, length as m-dash]C bonds of N-allenamides. Chem Commun (Camb) 2017; 53:196-199. [PMID: 27917422 DOI: 10.1039/c6cc07874e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A Pt-catalyzed, highly regioselective reaction between N-allenamides and imino-alkynes leading to pyrrolo[1,2-a]indoles is described. This represents the first example of [3+2]-annulation of Pt-bound azomethine ylides with the distal C[double bond, length as m-dash]C bond of N-allenamides. The mechanism of the reaction was established by computational studies.
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Affiliation(s)
- Indradweep Chakrabarty
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Suleman M Inamdar
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India.
| | - Manjur O Akram
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Amol B Gade
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
| | - Subhrashis Banerjee
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India
| | - Saibal Bera
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India
| | - Nitin T Patil
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune - 411008, India. and Academy of Scientific and Innovative Research (AcSIR), New Delhi - 110025, India
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33
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Jónsson HF, Evjen S, Fiksdahl A. Gold(I)-Catalyzed [2 + 2 + 2] Cyclotrimerization of 1,3-Diarylpropargyl Acetals. Org Lett 2017; 19:2202-2205. [DOI: 10.1021/acs.orglett.7b00411] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Helgi Freyr Jónsson
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Sigvart Evjen
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
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34
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Varela I, Faustino H, Díez E, Iglesias-Sigüenza J, Grande-Carmona F, Fernández R, Lassaletta JM, Mascareñas JL, López F. Gold(I)-Catalyzed Enantioselective [2+2+2] Cycloadditions: An Expedient Entry to Enantioenriched Tetrahydropyran Scaffolds. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03651] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Iván Varela
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Hélio Faustino
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Elena Díez
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | | | | | - Rosario Fernández
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | - José M. Lassaletta
- Instituto
Investigaciones Químicas, CSIC-USe, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - José L. Mascareñas
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Fernando López
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto
de Química Orgánica General, CSIC, Juan de la Cierva
3, 28006 Madrid, Spain
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35
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Peng S, Cao S, Sun J. Gold-Catalyzed Regiodivergent [2 + 2 + 2]-Cycloadditions of Allenes with Triazines. Org Lett 2017; 19:524-527. [PMID: 28079381 DOI: 10.1021/acs.orglett.6b03691] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Gold-catalyzed regiodivergent cycloadditions of functionalized allenes with 1,3,5-triazines, providing diverse N-heterocycles in moderate to excellent yields under mild reaction conditions, are reported. Importantly, different types of allenes exhibit distinct selectivity and reactivity for the reactions. Mechanistic investigations reveal that all of the cycloadditions proceed through a stepwise [2 + 2 + 2]-cycloaddition process.
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Affiliation(s)
- Shiyong Peng
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
| | - Shengyu Cao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology and School of Pharmaceutical Engineering & Life Science, Changzhou University , Changzhou 213164, P. R. China
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36
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Yan F, Liang H, Song J, Cui J, Liu Q, Liu S, Wang P, Dong Y, Liu H. Palladium-Catalyzed Cyclization-Heck Reaction of Allenamides: An Approach to 3-Methylene-5-phenyl-1,2,3,4-tetrahydropyridine Derivatives. Org Lett 2016; 19:86-89. [PMID: 27966983 DOI: 10.1021/acs.orglett.6b03364] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fachao Yan
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Hanbing Liang
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Jian Song
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Jie Cui
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Qing Liu
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Sheng Liu
- College
of Materials Science and Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Ping Wang
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Yunhui Dong
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
| | - Hui Liu
- School
of Chemical Engineering, Shandong University of Technology, 266 West Xincun Road, Zibo 255049, P. R. China
- The Technical Center of Zibo Entry and Exit Inspection and Quarantine Bureau, Zibo 255031, P. R. China
- College
of Materials Science and Engineering, Hunan University, Changsha, Hunan 410082, China
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37
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38
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Zheng WF, Bora PP, Sun GJ, Kang Q. Rhodium-Catalyzed Regio- and Stereoselective [2 + 2] Cycloaddition of Allenamides. Org Lett 2016; 18:3694-7. [PMID: 27403894 DOI: 10.1021/acs.orglett.6b01731] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A highly regio- and stereoselective Rh-catalyzed intermolecular head-to-head [2 + 2] cycloaddition of allenamides was developed. The intermolecular cycloadducts, trans-dimethylenecyclobutane-1,2-diamine derivatives, were achieved in good yields with high regioselectivity and stereoselectivity.
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Affiliation(s)
- Wei-Feng Zheng
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China.,College of Materials Science and Engineering, Fujian Normal University , Fuzhou 350007, China
| | - Pranjal Protim Bora
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
| | - Gui-Jun Sun
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West, Fuzhou 350002, China
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39
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Jaroschik F, Simonneau A, Lemière G, Cariou K, Agenet N, Amouri H, Aubert C, Goddard JP, Lesage D, Malacria M, Gimbert Y, Gandon V, Fensterbank L. Assessing Ligand and Counterion Effects in the Noble Metal Catalyzed Cycloisomerization Reactions of 1,6-Allenynes: a Combined Experimental and Theoretical Approach. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02696] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Florian Jaroschik
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Antoine Simonneau
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Gilles Lemière
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Kevin Cariou
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Nicolas Agenet
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Hani Amouri
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Corinne Aubert
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Jean-Philippe Goddard
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Denis Lesage
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Max Malacria
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
| | - Yves Gimbert
- Université Grenoble Alpes and CNRS, DCM (UMR 5250), F-38000 Grenoble, France
| | - Vincent Gandon
- Institut
de Chimie Moléculaire et des Matériaux d’Orsay,
CNRS UMR 8182, Université Paris-Sud, Université Paris-Saclay, Bâtiment
420, 91405 Orsay cedex, France
| | - Louis Fensterbank
- Sorbonne Universités, UPMC Univ Paris 06 and
CNRS, IPCM (UMR 8232), F-75005 Paris, France
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40
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Eisold M, Kiefl GM, Didier D. Single-Pot Asymmetric Approach toward Enantioenriched Quaternary Stereocenter-Containing Alkylidenecyclobutanes. Org Lett 2016; 18:3022-5. [PMID: 27281109 DOI: 10.1021/acs.orglett.6b01432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Enantioenriched alkylidenecyclobutanes possessing a quaternary stereogenic center, usually difficult to access, have been synthesized by combining a double boron-homologation and an allylboration through a highly efficient and diastereoselective one-pot process. Starting from commercially available substrates, this protocol represents a simple way of accessing chiral unsaturated four-membered ring systems with excellent stereoisomeric ratios.
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Affiliation(s)
- Michael Eisold
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Gabriel M Kiefl
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
| | - Dorian Didier
- Department of Chemistry and Pharmacy, Ludwig-Maximilians-University , Butenandtstrasse 5-13, 81377 Munich, Germany
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41
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Manoni E, Bandini M. N-Allenyl Amides and O-Allenyl Ethers in Enantioselective Catalysis. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600304] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisabetta Manoni
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum - University of Bologna; Via Selmi 2 40126 Bologna Italy
| | - Marco Bandini
- Department of Chemistry “G. Ciamician”; Alma Mater Studiorum - University of Bologna; Via Selmi 2 40126 Bologna Italy
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42
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Unusual Regioselectivity in the Gold(I)-Catalyzed [3+2] Carbocycloaddition Reaction of Vinyldiazo Compounds and N-Allenamides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201501039] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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43
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Ballesteros A, Morán-Poladura P, González JM. Gold(i) operational in synergistic catalysis for the intermolecular α-addition reaction of aldehydes across allenamides. Chem Commun (Camb) 2016; 52:2905-8. [DOI: 10.1039/c5cc09529h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A synergistic approach to the catalytic intermolecular α-addition of aldehydes across allenamides using gold(i) and proline derivatives.
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Affiliation(s)
- Alberto Ballesteros
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
| | - Pablo Morán-Poladura
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
| | - Jose M. González
- Departamento de Química Orgánica e Inorgánica
- Instituto Universitario de Química Organometálica “Enrique Moles”
- 33006 Oviedo
- Spain
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44
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Hu H, Wang Y, Qian D, Zhang ZM, Liu L, Zhang J. Enantioselective gold-catalyzed intermolecular [2 + 2]-cycloadditions of 3-styrylindoles with N-allenyl oxazolidinone. Org Chem Front 2016. [DOI: 10.1039/c6qo00087h] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A series of novel chiral monophosphine ligands Xiang-Phoses were designed and have been applied to the enantioselective gold-catalyzed intermolecular [2 + 2]-cycloaddition of 3-styrylindoles 1 with N-allenyl oxazolidinone 2.
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Affiliation(s)
- Haoxiang Hu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Deyun Qian
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Lu Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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45
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Fructos MR, Prieto A. [2+2] Cycloaddition reactions promoted by group 11 metal-based catalysts. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.031] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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46
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López E, Lonzi G, González J, López LA. Gold-catalyzed intermolecular formal (3+2) cycloaddition of stabilized vinyldiazo derivatives and electronically unbiased allenes. Chem Commun (Camb) 2016; 52:9398-401. [DOI: 10.1039/c6cc04106j] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The gold-catalyzed reaction of electronically unbiased allenes with alkenyldiazo compounds provided alkylidenecyclopentene derivatives resulting from a formal intermolecular (3+2) carbocyclization.
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Affiliation(s)
- Enol López
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33006-Oviedo
- Spain
- Instituto Universitario de Química Organometálica “Enrique Moles”
| | - Giacomo Lonzi
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33006-Oviedo
- Spain
- Instituto Universitario de Química Organometálica “Enrique Moles”
| | - Javier González
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33006-Oviedo
- Spain
| | - Luis A. López
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33006-Oviedo
- Spain
- Instituto Universitario de Química Organometálica “Enrique Moles”
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47
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Hernández-Díaz C, Rubio E, González JM. Gold-Catalyzed Allenamide [2+2+2]-Cyclotrimerization. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501364] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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48
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Goodwin JA, Ballesteros CF, Aponick A. Diastereoselective Synthesis of Protected 1,3-Diols by Catalytic Diol Relocation. Org Lett 2015; 17:5574-7. [DOI: 10.1021/acs.orglett.5b02725] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Justin A. Goodwin
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
| | - Carl F. Ballesteros
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Department of Chemistry,
Center for Heterocyclic Compounds, University of Florida, Gainesville, Florida 32611, United States
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49
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Ocello R, De Nisi A, Jia M, Yang QQ, Monari M, Giacinto P, Bottoni A, Miscione GP, Bandini M. Gold(I)-Catalyzed Dearomative [2+2]-Cycloaddition of Indoles with Activated Allenes: A Combined Experimental-Computational Study. Chemistry 2015; 21:18445-53. [DOI: 10.1002/chem.201503598] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Indexed: 12/27/2022]
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50
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Jia M, Monari M, Yang QQ, Bandini M. Enantioselective gold catalyzed dearomative [2+2]-cycloaddition between indoles and allenamides. Chem Commun (Camb) 2015; 51:2320-3. [PMID: 25562811 DOI: 10.1039/c4cc08736d] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The highly enantioselective synthesis of densely functionalized 2,3-indoline-cyclobutanes by means of chiral gold catalysis is presented. Intermolecular formal [2+2]-cycloaddition reactions between substituted indoles and allenamides enabled direct access to methylenecyclobutane-fused indolines, featuring two consecutive quaternary stereogenic centers with excellent stereochemical control (dr > 20 : 1, ee up to 99%).
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Affiliation(s)
- Minqiang Jia
- Department of Chemistry "G. Ciamician" Alma Mater Studiorum-University of Bologna via Selmi 2, 40126, Bologna, Italy.
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