1
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Miller BA, Narangoda CJ, Kwain S, Bridges WT, Noori M, Solomon EE, Bragg AA, Sung AT, Iwai Y, Ulisse L, Schmidt WH, McMillen CD, Dominy BN, Whitehead DC. Cycloaddition of Phenyltriazolinedione with Carbazole-Alkynes and Yne-Carbamates to Access Diazacyclobutenes. J Org Chem 2024; 89:4990-4999. [PMID: 38494854 DOI: 10.1021/acs.joc.4c00213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Previously, we described the synthesis of stable, bicyclic examples of the rather rare diazacyclobutene (DCB) motif by means of a cycloaddition between triazolinediones and electron-rich thiolated alkynes. Here, we report the investigation of the cycloaddition of triazolinediones with related electron-rich yne-carbamates and carbazole-alkynes. Bicyclic DCBs arising from yne-carbamates were isolated in 8-65% yield, while those arising from carbazole-alkynes were isolated in 28-59% yield. Mechanistic studies and characterization of isolable byproducts shed light on the underlying issues leading to poor to moderate yields.
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Affiliation(s)
- Brock A Miller
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
- Department of Chemistry, High Point University, High Point, North Carolina 27268, United States
| | - Chandima J Narangoda
- Department of Chemistry, Faculty of Applied Sciences, University of Sri Jayewardenepura, Gangodawila, Nugegodo 10250, Sri Lanka
| | - Samuel Kwain
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - William T Bridges
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Monireh Noori
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Erin E Solomon
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Alexis A Bragg
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Alex T Sung
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Yusuke Iwai
- Creative Engineering Program, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso, Showa, Nagoya 466-8555, Japan
| | - Lauren Ulisse
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - William H Schmidt
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Colin D McMillen
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Brian N Dominy
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
| | - Daniel C Whitehead
- Department of Chemistry, Clemson University, Clemson, South Carolina 29631, United States
- Eukaryotic Pathogens Innovation Center, Clemson University, Clemson, South Carolina 29634, United States
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2
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Wu X, Sun Y, Zeng Y, Li X. Mechanistic Insights into Oxazolone Synthesis by Bimetallic Au-Pd-Catalyzed Catalysis and Catalyst Design: DFT Investigations. J Org Chem 2023. [PMID: 37449782 DOI: 10.1021/acs.joc.3c00751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Bimetallic synergistic catalysis is one of the most effective and powerful strategies for the synthesis of oxazolones, an important species in organic synthesis. In this work, the mechanism of AuCl(PMe3)/AgOTf-Pd(0) ([Au-Pd]) bimetallic catalyst-catalyzed oxazolone synthesis using N-alkynyl carbamates as precursors was studied in detail by DFT calculations and the catalytic performances of a series of bimetallic catalysts were evaluated. The results show that the reaction begins from the [Au]-catalyzed cycloisomerization of N-alkynyl carbamates. After the five-membered intermediate is formed, the [Pd(0)]-catalyzed cycle starts, which contains three steps: oxidation addition, transmetalation, and reductive elimination. The whole reaction belongs to a catalyzed catalysis, and the reductive elimination is the rate-determining step. In the transmetalation process, both the [Pd(0)] catalyst and the ionic bridge are necessary. For the [Au-Pd]-catalyzed process, it is Cl- as the bridge, not OTf-. The cheaper metal compound, AgCl(PMe3), can serve as the alternative of AuCl(PMe3) to co-catalyze with the [Pd(0)] catalyst for the title reaction.
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Affiliation(s)
- Xueju Wu
- College of Chemistry and Material Science, Hubei Key Laboratory of Inorganic and Nano-Materials, National Demonstration Center for Experimental Chemistry, Hebei Normal University, Shijiazhuang 050024, P. R. China
| | - Yuanyuan Sun
- College of Chemistry and Material Science, Hubei Key Laboratory of Inorganic and Nano-Materials, National Demonstration Center for Experimental Chemistry, Hebei Normal University, Shijiazhuang 050024, P. R. China
| | - Yanli Zeng
- College of Chemistry and Material Science, Hubei Key Laboratory of Inorganic and Nano-Materials, National Demonstration Center for Experimental Chemistry, Hebei Normal University, Shijiazhuang 050024, P. R. China
| | - Xiaoyan Li
- College of Chemistry and Material Science, Hubei Key Laboratory of Inorganic and Nano-Materials, National Demonstration Center for Experimental Chemistry, Hebei Normal University, Shijiazhuang 050024, P. R. China
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3
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Efficient Synthesis of 1 H-Benzo[4,5]imidazo[1,2- c][1,3]oxazin-1-one Derivatives Using Ag 2CO 3/TFA-Catalyzed 6- endo-dig Cyclization: Reaction Scope and Mechanistic Study. Molecules 2023; 28:molecules28052403. [PMID: 36903655 PMCID: PMC10005794 DOI: 10.3390/molecules28052403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 03/09/2023] Open
Abstract
A small library of 1H-benzo[4,5]imidazo[1,2-c][1,3]oxazin-1-one derivatives was prepared in good to excellent yields, involving a Ag2CO3/TFA-catalyzed intramolecular oxacyclization of N-Boc-2-alkynylbenzimidazole substrates. In all experiments, the 6-endo-dig cyclization was exclusively achieved since the possible 5-exo-dig heterocycle was not observed, indicating the high regioselectivity of this process. The scope and limitations of the silver catalyzed 6-endo-dig cyclization of N-Boc-2-alkynylbenzimidazoles as substrates, bearing various substituents, were investigated. While ZnCl2 has shown limits for alkynes with an aromatic substituent, Ag2CO3/TFA demonstrated its effectiveness and compatibility regardless of the nature of the starting alkyne (aliphatic, aromatic or heteroaromatic), providing a practical regioselective access to structurally diverse 1H-benzo[4,5]imidazo[1,2-c][1,3]oxazin-1-ones in good yields. Moreover, the rationalization of oxacyclization selectivity in favor of 6-endo-dig over 5-exo-dig was explained by a complementary computational study.
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4
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Yescas-Galicia D, Restrepo-Osorio RA, García-González AN, Hernández-Benítez RI, Espinoza-Hicks JC, Escalante CH, Barrera E, Santoyo BM, Delgado F, Tamariz J. Divergent Pd-catalyzed Functionalization of 4-Oxazolin-2-ones and 4-Methylene-2-oxazolidinones and Synthesis of Heterocyclic-Fused Indoles. J Org Chem 2022; 87:13034-13052. [PMID: 36153994 DOI: 10.1021/acs.joc.2c01563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Palladium-catalyzed functionalization was presently performed on two building blocks: 4-oxazolin-2-ones and 4-methylene-2-oxazolidinones. Direct Heck arylation of 4-oxazolin-2-ones led to a series of 5-aryl-4-oxazolin-2-ones, including analogues with N-chiral auxiliary, in an almost quantitative yield. The Pd(II)-catalyzed homocoupling reaction of 4-oxazolin-2-ones provided novel heterocyclic across-ring dienes. Meanwhile, the intramolecular cross-coupling of N-aryl-4-methylene-2-oxazolidinones furnished a series of oxazolo[3,4-a]indol-3-ones. Further functionalization of 4-methylene-2-oxazolidinones afforded substituted indoles and heterocyclic-fused indoles with aryl, bromo, carbinol, formyl, and vinyl groups. A computational study was carried out to account for the behavior of the formylated derivatives. The currently developed methodology was applied to a new formal total synthesis of ellipticine.
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Affiliation(s)
- Daniel Yescas-Galicia
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Rodrigo A Restrepo-Osorio
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Ailyn N García-González
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Roberto I Hernández-Benítez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - José C Espinoza-Hicks
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Autónoma de Chihuahua, Circuito Universitario S/N, 31000 Chihuahua, Chih., Mexico
| | - Carlos H Escalante
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Edson Barrera
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Blanca M Santoyo
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Francisco Delgado
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
| | - Joaquín Tamariz
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala S/N, 11340 Mexico City, Mexico
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5
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Wang Z, Chen X, Hu Y, Li H, Yang YF, Liu Y, Jin H, Zhou B. Deconstructive isomerization of azetidinols via C-C bond cleavage enabled by N-heterocyclic carbene (NHC) catalysis. Chem Commun (Camb) 2022; 58:9294-9297. [PMID: 35904428 DOI: 10.1039/d2cc03104c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe an N-heterocyclic carbene (NHC)-catalyzed deconstructive isomerization of azetidinols via an inert C-C bond cleavage. It provides a direct and supplementary pathway to access α-amino ketone and oxazol-2-one derivatives in moderate to good yields. DFT calculation supports the proposed mechanism in which NHC undergoes a concerted proton transfer and ring-opening process. This reaction features non-metal catalysis, simple reaction operation, excellent regioselectivity and gram-scale synthesis.
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Affiliation(s)
- Zhen Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Xue Chen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yunayuan Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Huiling Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yun-Fang Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yunkui Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Hongwei Jin
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Bingwei Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
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6
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Li B, Yuan J, Ye X, Zhang R, Li J, Wang Y, Hu J, Dong D. PIFA-Mediated Tandem Hofmann-Type Rearrangement and Cyclization Reaction of α-Acyl-β-aminoacrylamides: Access to Polysubstituted Oxazol-2(3 H)-ones. J Org Chem 2021; 86:17944-17954. [PMID: 34872249 DOI: 10.1021/acs.joc.1c02276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient and straightforward synthesis of polysubstituted oxazol-2(3H)-ones has been developed via a tandem Hofmann-type rearrangement and cyclization reaction of various α-acyl-β-aminoacrylamides mediated by phenyl iodine(III) bis(trifluoroacetate) (PIFA) in the presence of trifloroacetic acid (TFA). This novel protocol features readily available starting materials, mild reaction conditions, simple execution, high chemoselectivity, good functional group tolerance, and a metal-free oxidation process.
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Affiliation(s)
- Baibin Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jingwen Yuan
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Xuebei Ye
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Rui Zhang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jiacheng Li
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yu Wang
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jiana Hu
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Dewen Dong
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Science and Technology of China, Hefei 230026, P. R. China
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7
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Davies PW. Gold-Catalyzed Annulations with Nucleophilic Nitrenoids Enabled by Heteroatom-Substituted Alkynes. CHEM REC 2021; 21:3964-3977. [PMID: 34708496 DOI: 10.1002/tcr.202100205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/18/2021] [Accepted: 09/20/2021] [Indexed: 11/07/2022]
Abstract
The combination of a nucleophilic nitrene equivalent, a triple bond and a π-acid catalyst has underpinned numerous efficient transformations for the preparation of azacycles. This personal account details our efforts in developing an annulation strategy. Adding a nucleophilic nitrenoid to an activated alkyne can generate carbenoid character that is then quenched by a cyclisation onto the nitrenoid substituent. The use and development of N-acyl and N-heterocyclic pyridinium-N-aminides as 1,3-N,O and 1,3-N,N-dipole equivalents is discussed in the context of oxazole and heterocycle-fused imidazole formation, respectively. The resulting processes are highly efficient, practically straightforward, and tolerate considerable structural and functional group variation. Our use of heteroatom-substituted alkynes as enabling tools for reaction discovery is discussed. The reactivity accessed from the strong donor-like properties of ynamides is complemented by that obtained from alkynyl thioethers, which are emerging as interesting substrates for π-acid catalysis.
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Affiliation(s)
- Paul W Davies
- School of Chemistry, University of Birmingham Edgbaston, Birmingham, B15 2TT, UK
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8
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Thilmany P, Guarnieri-Ibáñez A, Jacob C, Lacour J, Evano G. Straightforward Synthesis of Indenes by Gold-Catalyzed Intramolecular Hydroalkylation of Ynamides. ACS ORGANIC & INORGANIC AU 2021; 2:53-58. [PMID: 36855401 PMCID: PMC9954284 DOI: 10.1021/acsorginorgau.1c00021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An original and straightforward entry to polysubstituted indenes from readily available ynamides is reported. Upon reaction with a N-heterocyclic carbene-gold complex under mild conditions, activated keteniminium ions are generated whose unique electrophilicity triggers a [1,5]-hydride shift and a subsequent cyclization. The presence of an endocyclic enamide in the densely functionalized resulting indenes was shown to be especially useful and versatile, offering a range of opportunities for their further postfunctionalization.
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Affiliation(s)
- Pierre Thilmany
- Laboratoire
de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium
| | - Alejandro Guarnieri-Ibáñez
- Department
of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| | - Clément Jacob
- Laboratoire
de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium,Organic
Synthesis Division, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Jérôme Lacour
- Department
of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211 Geneva 4, Switzerland
| | - Gwilherm Evano
- Laboratoire
de Chimie Organique, Service de Chimie et PhysicoChimie Organiques, Université libre de Bruxelles (ULB), Avenue F. D. Roosevelt 50, CP160/06, 1050 Brussels, Belgium,
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9
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Takai R, Shimbo D, Tada N, Itoh A. Ligand-Enabled Copper-Catalyzed N-Alkynylation of Sulfonamide with Alkynyl Benziodoxolone: Synthesis of Amino Acid-Derived Ynamide. J Org Chem 2021; 86:4699-4713. [PMID: 33719425 DOI: 10.1021/acs.joc.1c00101] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ynamides are versatile building blocks in organic synthesis. However, the synthesis of amino acid-derived ynamides is difficult but in high demand. Herein, we disclose the copper-catalyzed Csp-N coupling of sulfonamide, including amino acid and peptide derivatives, to give ynamides by using alkynyl benziodoxolones with broad functional group tolerance under mild reaction conditions. The electron-rich bipyridine as a ligand and ethanol as solvent were used for the success of this reaction. The usefulness of the obtained amino acid-derived ynamide as building block was showcased by further derivatization to unique amino acid derivatives. A control experiment to elucidate the mechanistic insight was also described.
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Affiliation(s)
- Ryogo Takai
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Daisuke Shimbo
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Norihiro Tada
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
| | - Akichika Itoh
- Gifu Pharmaceutical University, 1-25-4 Daigaku-nishi, Gifu 501-1196, Japan
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10
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Wørmer GJ, Villadsen NL, Nørby P, Poulsen TB. Concise Asymmetric Syntheses of Streptazone A and Abikoviromycin**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Gustav J. Wørmer
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Nikolaj L. Villadsen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Peter Nørby
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Thomas B. Poulsen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
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11
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Wørmer GJ, Villadsen NL, Nørby P, Poulsen TB. Concise Asymmetric Syntheses of Streptazone A and Abikoviromycin**. Angew Chem Int Ed Engl 2021; 60:10521-10525. [DOI: 10.1002/anie.202101439] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Indexed: 12/14/2022]
Affiliation(s)
- Gustav J. Wørmer
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Nikolaj L. Villadsen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Peter Nørby
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
| | - Thomas B. Poulsen
- Department of Chemistry Aarhus University Langelandsgade 140 8000 Aarhus C Denmark
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12
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Goulart TAC, Back DF, Moura E Silva S, Zeni G. Diorganyl Diselenides and Iron(III) Chloride Drive the Regio- and Stereoselectivity in the Selenation of Ynamides. J Org Chem 2021; 86:980-994. [PMID: 33259208 DOI: 10.1021/acs.joc.0c02480] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We report here our results on the application of ynamides as substrates in the reactions with diorganyl dichalcogenides and iron(III) chloride to give selectively three different types of compounds: E-α-chloro-β-(organoselenyl)enamides, 4-(organochalcogenyl)oxazolones, and vinyl tosylates. The results reveal that the selectivity in the formation of products was obtained by controlling the functional groups directly bonded to the nitrogen atom of the ynamides. Thus, α-chloro-β-(organoselenyl) enamide derivatives were exclusively obtained when the TsN- and MsN-ynamides were treated with a mixture of diorganyl diselenides (1.0 equiv) and FeCl3 (3.0 equiv) in dichloroethane (DCE, 3 mL), at room temperature. The 4-(organochalcogenyl)oxazolones were selectively obtained with ynamides having an ester group, directly bonded to the nitrogen atom, upon treatment with a solution of FeCl3 (1.5 equiv) and diorganyl dichalcogenides (1.0 equiv) in dichloromethane (3 mL) at room temperature. Finally, vinyl tosylates were obtained from ynamides having an ester group, directly bonded to the nitrogen atom, by reaction with p-toluenesulfonic acid. We also studied the application of the prepared compounds as substrates for Suzuki and Sonogashira cross-coupling reactions.
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13
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Zhu B, Zhu L, Xia J, Huang S, Huang X. Gold-catalyzed cycloisomerization of enynamides: Regio- and stereoselective approach to tetracyclic spiroindolines. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131056] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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14
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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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15
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Zhang YX, Chen LY, Sun JT, Si CM, Wei BG. Gold-Catalyzed Addition–N-Boc Cleavage–Cyclization of N,O-Acetal with Ynamides for Construction of 6-(tert-Butyldimethylsilyl)oxy-tetrahydropyrrolo[1,2-c][1,3]oxazin-1-ones. J Org Chem 2020; 85:12603-12613. [DOI: 10.1021/acs.joc.0c01776] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yan-Xue Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Ling-Yan Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen 361005, China
| | - Jian-Ting Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, China
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
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16
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Abe M, Picard B, De Paolis M. Convergent Synthesis of 2-Oxazolone-4-carboxylates Esters by Reaction of Aldehydes with Ambivalent N-Cbz-α-Tosylglycinate Ester. Org Lett 2020; 22:4864-4867. [PMID: 32519551 DOI: 10.1021/acs.orglett.0c01703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
N-Cbz-α-tosylglycinate ester was combined with aldehydes in a redox-neutral sequence leading to 2-oxazolone-4-carboxylates with high functional group tolerance. While the scope of the method was delineated to primary and secondary aliphatic aldehydes as well as aromatics, no racemization occurred with chiral aldehydes such as Garner's. Hitherto unknown, this process relies on the ambivalent role of N-Cbz-α-tosylglycinate ester acting as a pronucleophile.
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Affiliation(s)
- Masahiro Abe
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, COBRA, 76000 Rouen, France
| | - Baptiste Picard
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, COBRA, 76000 Rouen, France
| | - Michaël De Paolis
- Normandie Univ, UNIROUEN, COBRA, INSA Rouen, CNRS, COBRA, 76000 Rouen, France
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17
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Zhang Z, Fu B, Wang H, Chen H, Tu Y, Zhao J. Access to ( Z)-1,2-Endiamides and 1,1-Endiamides via a Base-Promoted Tandem Reaction. J Org Chem 2020; 85:5245-5254. [PMID: 32207944 DOI: 10.1021/acs.joc.9b03305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient base-promoted tandem reaction between vinyl 1,1-dichlorides and secondary sulfonamides with ynamide as the key intermediate is described. This method provides a facile approach to (Z)-1,2-endiamide and aryl 1,1-endiamide derivatives via the β-hydroamidation of terminal ynamides and the α-hydroamidation of internal ynamides, respectively. This reaction proceeded through double elimination of vinyl chlorides and double addition of nucleophiles to alkynes. In addition, it features readily available starting materials, mild reaction conditions, a broad substrate scope, a wide functional group tolerance, and an operational convenience.
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Affiliation(s)
- Zhenming Zhang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Bei Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Hui Wang
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Han Chen
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Yongliang Tu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
| | - Junfeng Zhao
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China
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18
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Kaur N, Ahlawat N, Verma Y, Grewal P, Bhardwaj P, Jangid NK. Cu-assisted C–N bond formations in six-membered N-heterocycle synthesis. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2019.1695278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Neha Ahlawat
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Yamini Verma
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pooja Grewal
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
| | - Pranshu Bhardwaj
- Department of Chemistry, Banasthali Vidyapith, Banasthali, India
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19
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Xu Y, Sun Q, Tan T, Yang M, Yuan P, Wu S, Lu X, Hong X, Ye L. Organocatalytic Enantioselective Conia‐Ene‐Type Carbocyclization of Ynamide Cyclohexanones: Regiodivergent Synthesis of Morphans and Normorphans. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908495] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yin Xu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Qing Sun
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Tong‐De Tan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Ming‐Yang Yang
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Peng Yuan
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Shao‐Qi Wu
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
| | - Xin Hong
- Department of ChemistryZhejiang University Hangzhou 310027 China
| | - Long‐Wu Ye
- State Key Laboratory of Physical Chemistry of Solid SurfacesKey Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 China
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20
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Xu Y, Sun Q, Tan TD, Yang MY, Yuan P, Wu SQ, Lu X, Hong X, Ye LW. Organocatalytic Enantioselective Conia-Ene-Type Carbocyclization of Ynamide Cyclohexanones: Regiodivergent Synthesis of Morphans and Normorphans. Angew Chem Int Ed Engl 2019; 58:16252-16259. [PMID: 31444882 DOI: 10.1002/anie.201908495] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/07/2019] [Indexed: 12/13/2022]
Abstract
Described herein is an organocatalytic enantioselective desymmetrizing cycloisomerization of arylsulfonyl-protected ynamide cyclohexanones, representing the first metal-free asymmetric Conia-ene-type carbocyclization. This method allows the highly efficient and atom-economical construction of a range of valuable morphans with wide substrate scope and excellent enantioselectivity (up to 97 % ee). In addition, such a cycloisomerization of alkylsulfonyl-protected ynamide cyclohexanones can lead to the divergent synthesis of normorphans as the main products with high enantioselectivity (up to 90 % ee). Moreover, theoretical calculations are employed to elucidate the origins of regioselectivity and enantioselectivity.
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Affiliation(s)
- Yin Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Qing Sun
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ming-Yang Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Peng Yuan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Shao-Qi Wu
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Theoretical and Computational Chemistry of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory for Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China.,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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21
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Verlee A, Heugebaert T, van der Meer T, Kerchev P, Van Hecke K, Van Breusegem F, Stevens CV. Gold and Palladium Mediated Bimetallic Catalysis: Mechanistic Investigation through the Isolation of the Organogold(I) Intermediates. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Arno Verlee
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Campus Coupure, Coupure Links 653, B-9000 Ghent, Belgium
| | - Thomas Heugebaert
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Campus Coupure, Coupure Links 653, B-9000 Ghent, Belgium
| | - Tom van der Meer
- Department of Plant Systems Biology, VIB, Ghent University, Technologiepark 927, B-9000 Ghent, Belgium
| | - Pavel Kerchev
- Department of Plant Systems Biology, VIB, Ghent University, Technologiepark 927, B-9000 Ghent, Belgium
| | - Kristof Van Hecke
- Department of Chemistry, Faculty of Sciences, XStruct, Ghent University, Krijgslaan 281 (S3), B-9000 Ghent, Belgium
| | - Frank Van Breusegem
- Department of Plant Systems Biology, VIB, Ghent University, Technologiepark 927, B-9000 Ghent, Belgium
| | - Christian V. Stevens
- Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Campus Coupure, Coupure Links 653, B-9000 Ghent, Belgium
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22
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Affiliation(s)
- Bo Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Tong-De Tan
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Mingzhou Shang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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23
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Habert L, Sallio R, Durandetti M, Gosmini C, Gillaizeau I. Zinc Chloride Mediated Synthesis of
3H
‐Oxazol‐2‐one and Pyrrolo‐oxazin‐1‐one from Ynamide. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900428] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Loïc Habert
- Institute of Organic and Analytical Chemistry ICOA UMR 7311 CNRS Université d'Orléans rue de Chartres 45100 Orléans France
| | - Romain Sallio
- Institute of Organic and Analytical Chemistry ICOA UMR 7311 CNRS Université d'Orléans rue de Chartres 45100 Orléans France
| | - Muriel Durandetti
- Normandie Univ, UNIROUEN NSA Rouen, CNRS, COBRA (UMR 6014& FR 3038) 76000 Rouen France
| | - Corinne Gosmini
- Laboratoire de Chimie Moléculaire CNRS, Ecole polytechnique, IPParis 91128 Palaiseau France
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry ICOA UMR 7311 CNRS Université d'Orléans rue de Chartres 45100 Orléans France
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24
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Prabagar B, Mallick RK, Prasad R, Gandon V, Sahoo AK. Umpolung Reactivity of Ynamides: An Unconventional [1,3]-Sulfonyl and [1,5]-Sulfinyl Migration Cascade. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- B. Prabagar
- School of Chemistry; University of Hyderabad; Hyderabad India
| | | | - Rangu Prasad
- School of Chemistry; University of Hyderabad; Hyderabad India
| | - 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
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168; Ecole Polytechnique; Université Paris-Saclay; route de Saclay 91128 Palaiseau cedex France
| | - Akhila K. Sahoo
- School of Chemistry; University of Hyderabad; Hyderabad India
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25
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Prabagar B, Mallick RK, Prasad R, Gandon V, Sahoo AK. Umpolung Reactivity of Ynamides: An Unconventional [1,3]-Sulfonyl and [1,5]-Sulfinyl Migration Cascade. Angew Chem Int Ed Engl 2019; 58:2365-2370. [PMID: 30569486 DOI: 10.1002/anie.201813143] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Indexed: 01/25/2023]
Abstract
A regioselective sulfonyl/sulfinyl migration cycloisomerization cascade of alkyne-tethered ynamides is developed in the presence of XPhosgold catalyst. This reaction is the first example of a general [1,3]-sulfonyl migration from the nitrogen center to the β-carbon atom of ynamides, followed by umpolung 5-endo-dig cyclization of the ynamide α-carbon atom to the gold-activated alkyne, and final deaurative [1,5]-sulfinylation. This process allows the synthesis of peripherally decorated unconventional 4-sulfinylated pyrroles with broad scope from N-propargyl-tethered ynamides. In contrast, N-homopropargyl-tethered ynamides undergo intramolecular tetradehydro Diels-Alder reaction to provide 2,3-dihydro-benzo[f]indole derivatives. Control experiments and density-functional theory studies were used to study the reaction pathways.
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Affiliation(s)
- B Prabagar
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | | | - Rangu Prasad
- School of Chemistry, University of Hyderabad, Hyderabad, India
| | - 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.,Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Université Paris-Saclay, route de Saclay, 91128, Palaiseau cedex, France
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad, India
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26
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Ieawsuwan W, Ruchirawat S. An Efficient Silver Tetrafluoroborate-Catalyzed Cycloisomerization of Ynamides. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)21] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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27
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He G, Li Y, Yu Z, Chen Z, Tang Y, Song G, Loh TP. Selectfluor™-catalyzed oxidative cyclization of ynamides enables facile synthesis of oxazolidine-2,4-diones. Org Chem Front 2019. [DOI: 10.1039/c9qo00845d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Selectfluor™-catalyzed oxidative cyclization of ynamides employing DMSO as the solvent and oxidant was achieved, affording oxazolidine-2,4-diones in moderate to excellent yields with high chemo-selectivity. The method offers an attractive alternative to existing protocols.
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Affiliation(s)
- Guangke He
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Yuan Li
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Zilun Yu
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Zhaoqiang Chen
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Yongming Tang
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Guangliang Song
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering
- Institute of Advanced Synthesis
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
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28
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Anitha M, Shankar M, Kumara Swamy KC. Reactivity of epoxy-ynamides with metal halides: nucleophile (Br/Cl/OH)-assisted tandem intramolecular 5-exo-digor 6-endo-digcyclisation and AgF2-promoted oxidation. Org Chem Front 2019. [DOI: 10.1039/c9qo00027e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several metal halides (CuBr, LiCl, CuF2, AgF2) react with epoxy-ynamides to afford 1,3-oxazolidines, 1,4-oxazines or 1,2-dioxo-enamides.
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Affiliation(s)
- Mandala Anitha
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
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29
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Han P, Mao ZY, Si CM, Zhou Z, Wei BG, Lin GQ. Stereoselective Synthesis of Pyrido- and Pyrrolo[1,2-c][1,3]oxazin-1-ones via a Nucleophilic Addition–Cyclization Process of N,O-Acetal with Ynamides. J Org Chem 2018; 84:914-923. [DOI: 10.1021/acs.joc.8b02795] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Pan Han
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Zhuo-Ya Mao
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Chang-Mei Si
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Zhu Zhou
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Bang-Guo Wei
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
| | - Guo-Qiang Lin
- School of Pharmacy and Institutes of Biomedical Sciences, Fudan University, 826 Zhangheng Road, Shanghai 201203, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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30
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Allegue D, González J, Fernández S, Santamaría J, Ballesteros A. Regiodivergent Control in the Gold(I) Catalyzed Synthesis of 7-Pyrazolylindoles from 1-Propargyl-1H
-benzotriazoles and Ynamides through α-Imino Gold(I) Carbene Complexes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801484] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Darío Allegue
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Jairo González
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Sergio Fernández
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Javier Santamaría
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Alfredo Ballesteros
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
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31
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Vessally E, Nikpasand M, Ahmadi S, Delir Kheirollahi Nezhad P, Hosseinian A. Transition metal-catalyzed intramolecular cyclization of N-Boc-protected propargyl/ethynyl amines: a novel and convenient access to 2-oxazolidinone/oxazolone derivatives. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1542-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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32
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Rey-Rodriguez R, Grelier G, Habert L, Retailleau P, Darses B, Gillaizeau I, Dauban P. Reaction of Ynamides with Iminoiodinane-Derived Nitrenes: Formation of Oxazolones and Polyfunctionalized Oxazolidinones. J Org Chem 2017; 82:11897-11902. [PMID: 28862441 DOI: 10.1021/acs.joc.7b01623] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article describes the reaction of ynamides with metallanitrenes generated in the presence of an iodine(III) oxidant. N-(Boc)-Ynamides are converted to oxazolones via a cyclization reaction. The reaction is mediated by a catalytic dirhodium-bound nitrene species that first behaves as a Lewis acid. The oxazolones can be converted in a one pot manner to functionalized oxazolidinones following a regio- and stereoselective oxyamination reaction with the same nitrene reagent generated in stoichiometric amounts.
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Affiliation(s)
- Romain Rey-Rodriguez
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la terrasse, 91198 Gif-sur-Yvette, France
| | - Gwendal Grelier
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la terrasse, 91198 Gif-sur-Yvette, France
| | - Loïc Habert
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d'Orléans , rue de Chartres, 45100 Orléans, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la terrasse, 91198 Gif-sur-Yvette, France
| | - Benjamin Darses
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la terrasse, 91198 Gif-sur-Yvette, France
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d'Orléans , rue de Chartres, 45100 Orléans, France
| | - Philippe Dauban
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Université Paris-Sud, Université Paris-Saclay , Avenue de la terrasse, 91198 Gif-sur-Yvette, France
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33
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Mallick RK, Prabagar B, Sahoo AK. Regioselective Synthesis of 2,4,5-Trisubstituted Oxazoles and Ketene Aminals via Hydroamidation and Iodo-Imidation of Ynamides. J Org Chem 2017; 82:10583-10594. [DOI: 10.1021/acs.joc.7b02124] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - B. Prabagar
- 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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34
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Ieawsuwan W, Ruchirawat S. PIFA-BF 3·OEt 2 mediated intramolecular regioselective domino cyclization of ynamides: A novel method for the synthesis of tetrahydroisoquinoline-oxazol-2(3H)-ones. Bioorg Med Chem 2017; 25:2856-2867. [PMID: 28351608 DOI: 10.1016/j.bmc.2017.03.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/09/2017] [Accepted: 03/17/2017] [Indexed: 10/19/2022]
Abstract
The transition metal-free intramolecular regioselective domino cyclization of N-Boc protected ynamides has been developed to provide the corresponding tetrahydroisoquinoline-oxazo-2(3H)-ones in moderate to good yields.
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Affiliation(s)
- Winai Ieawsuwan
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand.
| | - Somsak Ruchirawat
- Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Chemical Biology Program, Chulabhorn Graduate Institute, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Ministry of Education, 54 Kamphaeng Phet 6 Road, Laksi, Bangkok 10210, Thailand
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35
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Li L, Chen XM, Wang ZS, Zhou B, Liu X, Lu X, Ye LW. Reversal of Regioselectivity in Catalytic Arene-Ynamide Cyclization: Direct Synthesis of Valuable Azepino[4,5-b]indoles and β-Carbolines and DFT Calculations. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01038] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Long Li
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiu-Mei Chen
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Theoretical and Computational Chemistry, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Ze-Shu Wang
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Bo Zhou
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Liu
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xin Lu
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Theoretical and Computational Chemistry, Department
of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Collaborative
Innovation Center of Chemistry for Energy Material, State Key Laboratory
of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key
Laboratory of Chemical Biology, Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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36
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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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37
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Sallio R, Corpet M, Habert L, Durandetti M, Gosmini C, Gillaizeau I. Cobalt-Catalyzed Carbozincation of Ynamides. J Org Chem 2017; 82:1254-1259. [DOI: 10.1021/acs.joc.6b02612] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Romain Sallio
- Institute
of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d’Orléans, rue de Chartres, 45100 Orléans, France
| | - Martin Corpet
- LCM,
CNRS, Ecole polytechnique, Université Paris Saclay, 91128 Palaiseau Cedex, France
| | - Loic Habert
- Institute
of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d’Orléans, rue de Chartres, 45100 Orléans, France
| | - Muriel Durandetti
- Normandie Univ, UNIROUEN, INSA Rouen, CNRS, COBRA
(UMR 6014), 76000 Rouen, France
| | - Corinne Gosmini
- LCM,
CNRS, Ecole polytechnique, Université Paris Saclay, 91128 Palaiseau Cedex, France
| | - Isabelle Gillaizeau
- Institute
of Organic and Analytical Chemistry, ICOA UMR 7311 CNRS, Université d’Orléans, rue de Chartres, 45100 Orléans, France
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38
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Hamel JD, Hayashi T, Cloutier M, Savoie PR, Thibeault O, Beaudoin M, Paquin JF. Highly regioselective gold-catalyzed formal hydration of propargylic gem-difluorides. Org Biomol Chem 2017; 15:9830-9836. [DOI: 10.1039/c7ob02406a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly regioselective gold-catalyzed formal hydration of propargylic gem-difluorides is presented.
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Affiliation(s)
- Jean-Denys Hamel
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
| | - Tatsuru Hayashi
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
| | - Mélissa Cloutier
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
| | - Paul R. Savoie
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
| | - Olivier Thibeault
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
| | - Meggan Beaudoin
- CCVC
- PROTEO
- Département de chimie
- 1045 avenue de la Médecine
- Université Laval
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39
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Tang L, Huang H, Xi Y, He G, Zhu H. Pd/Cu-Catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyloxazolones. Org Biomol Chem 2017; 15:2923-2930. [DOI: 10.1039/c7ob00381a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is the first Pd/Cu-catalyzed tandem head-to-tail dimerization/cycloisomerization of terminal ynamides for the synthesis of 5-vinyl-oxazolones.
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Affiliation(s)
- Luning Tang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hai Huang
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Yang Xi
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Guangke He
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
| | - Hongjun Zhu
- Department of Applied Chemistry
- College of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- People's Republic of China
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40
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Siva Kumari AL, Siva Reddy A, Swamy KCK. Transition Metal-Free Cascade Cyclization of Epoxy-Ynamides: To Go for 1,3-Oxazines or 1,4-Oxazines? Org Lett 2016; 18:5752-5755. [DOI: 10.1021/acs.orglett.6b03047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- A. Leela Siva Kumari
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
| | - K. C. Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad-500046, Telangana, India
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41
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Yu Y, Chen G, Zhu L, Liao Y, Wu Y, Huang X. Gold-Catalyzed β-Regioselective Formal [3 + 2] Cycloaddition of Ynamides with Pyrido[1,2-b]indazoles: Reaction Development and Mechanistic Insights. J Org Chem 2016; 81:8142-54. [PMID: 27569125 DOI: 10.1021/acs.joc.6b01948] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yinghua Yu
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian 350002, China
| | - Gui Chen
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian 350002, 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, Yangqiao West Road 155#, Fuzhou, Fujian 350002, China
| | - Yun Liao
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian 350002, China
- College
of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yufeng Wu
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155#, Fuzhou, Fujian 350002, China
- College
of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, 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, Yangqiao West Road 155#, Fuzhou, Fujian 350002, China
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42
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Savarimuthu SA, Thomas SA, Prakash DGL, Gandhi T. LiOtBu Promoted 5-Exo-dig Cyclization of Propargyl Alcohols and Isocyanates for the Synthesis of Multisubstituted 3H-Oxazol-2-ones and Oxazolidin-2-ones. ChemistrySelect 2016. [DOI: 10.1002/slct.201600363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- S. Antony Savarimuthu
- Department of Chemistry, S; t.Xavier's College (Autonomous); Tirunelveli Tamil Nadu- 627 002 India
| | - S. Augustine Thomas
- Department of Chemistry, S; t.Xavier's College (Autonomous); Tirunelveli Tamil Nadu- 627 002 India
| | - D. G. Leo Prakash
- Materials Research Centre; College of Engineering; Swansea University; Swansea SA2 8PP UK
| | - Thirumanavelan Gandhi
- Department of Chemistry; School of Advanced Sciences; VIT University; Vellore- 632 014 India
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43
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Sueda T, Okamoto N, Yanada R. Copper-Catalyzed Tandem Decyclization-Cyclization Reaction of N-Alkynyl-3-hydroxyisoindolin-1-ones Generated from N-Alkynyl Phthalimides: Selective Synthesis of ortho-(2-Oxazolyl)phenyl Ketones. J Org Chem 2016; 81:5745-51. [DOI: 10.1021/acs.joc.6b00888] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuya Sueda
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Noriko Okamoto
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
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44
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Heinrich CF, Fabre I, Miesch L. Silver-Catalyzed 7-exo-
dig Cyclization of Silylenolether-ynesulfonamides. Angew Chem Int Ed Engl 2016; 55:5170-4. [DOI: 10.1002/anie.201510708] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 02/05/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Clément F. Heinrich
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
| | - Indira Fabre
- Département de Chimie, Ecole Normale Supérieure-PSL Research University; Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR; 24, rue Lhomond 75005 Paris France
| | - Laurence Miesch
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
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45
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Heinrich CF, Fabre I, Miesch L. Silver-Catalyzed 7-exo-
dig Cyclization of Silylenolether-ynesulfonamides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510708] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Clément F. Heinrich
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
| | - Indira Fabre
- Département de Chimie, Ecole Normale Supérieure-PSL Research University; Sorbonne Universités-UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR; 24, rue Lhomond 75005 Paris France
| | - Laurence Miesch
- Laboratoire de Chimie Organique Synthétique; Institut de Chimie; 1, rue Blaise Pascal, BP296/R8 67008 Strasbourg France
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46
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Siva Reddy A, Siva Kumari AL, Saha S, Kumara Swamy KC. Palladium-Catalyzed Tandem-Cyclization of Functionalized Ynamides: An Approach to Benzosultams. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500854] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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47
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De Risi C, Pollini GP, Zanirato V. Recent Developments in General Methodologies for the Synthesis of α-Ketoamides. Chem Rev 2016; 116:3241-305. [DOI: 10.1021/acs.chemrev.5b00443] [Citation(s) in RCA: 130] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Carmela De Risi
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gian Piero Pollini
- Istituto Universitario
di Studi Superiori “IUSS−Ferrara 1391”, Via delle Scienze 41/b, 44121 Ferrara, Italy
| | - Vinicio Zanirato
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università degli Studi di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
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48
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Gillie AD, Jannapu Reddy R, Davies PW. Efficient and Flexible Synthesis of Highly Functionalised 4‐Aminooxazoles by a Gold‐Catalysed Intermolecular Formal [3+2] Dipolar Cycloaddition. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500905] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Andrew D. Gillie
- School of Chemistry, University of Birmingham, Birmingham, B15 2TT, U.K. Fax: (+44)‐(0)121‐414‐4403
| | - Raju Jannapu Reddy
- School of Chemistry, University of Birmingham, Birmingham, B15 2TT, U.K. Fax: (+44)‐(0)121‐414‐4403
| | - Paul W. Davies
- School of Chemistry, University of Birmingham, Birmingham, B15 2TT, U.K. Fax: (+44)‐(0)121‐414‐4403
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49
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Kurane R, Khanapure S, Kale D, Salunkhe R, Rashinkar G. An expedient synthesis of oxazolones using a cellulose supported ionic liquid phase catalyst. RSC Adv 2016. [DOI: 10.1039/c6ra03873e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel cellulose supported ionic liquid phase catalyst has been synthesized and effectively employed as a heterogeneous catalyst in the synthesis of oxazolones.
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Affiliation(s)
| | | | - Dolly Kale
- Department of Chemistry
- Shivaji University
- Kolhapur
- India
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50
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Luo G, Chen L. Gold-catalyzed stereoselective 1,4-conjugate addition of pyrazoles to propiolates and their hydrogenation to β-pyrazolyl acid esters. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.122] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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