1
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Rahman M, Gao P, Zhao Q, Lalancette R, Szostak R, Szostak M. [Au(Np #)Cl]: Highly Reactive and Broadly Applicable Au(I)─NHC Catalysts for Alkyne π-Activation Reactions. Catal Sci Technol 2023; 13:5131-5139. [PMID: 38464950 PMCID: PMC10923537 DOI: 10.1039/d3cy00717k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Cationic Au(I)─NHC (NHC = N-heterocyclic carbene) complexes have become an important class of catalysts for alkyne π-activation reactions in organic synthesis. In particular, these complexes are characterized by high stability of catalytic species engendered by strong σ-donation and metal backbonding. Herein, we report the synthesis and characterization of well-defined [Au(NHC)Cl] complexes featuring recently discovered IPr# family of ligands that hinge upon modular peralkylation of aniline. These ligands have been commercialized in collaboration with MilliporeSigma (IPr#: 915653; Np#: 915912; BIAN-IPr#: 916420). Evaluation of the [Au(NHC)Cl] complexes in a series of Au(I)─NHC-catalyzed π-functionalizations of alkynes, such as hydrocarboxylation, hydroamination and hydration, resulted in the identification of wingtip-flexible [Au(Np#)Cl] as a highly reactive and broadly applicable catalyst with the re-activity outperforming the classical [Au(IPr)Cl] and [Au(IPr*)Cl] complexes. The utility of this catalyst has been demonstrated in the direct late-stage derivatization of complex pharmaceuticals. Structural and computational studies were conducted to determine steric effects, frontier molecular orbitals and bond orders of this class of catalysts. Considering the attractive features of well-defined Au(I)─NHC complexes, we anticipate that this class of bulky and wingtip-flexible Au(I)─NHCs based on the modular peralkylated naphthylamine scaffold will find broad application in π-functionalization of alkynes in various areas of organic synthesis and catalysis.
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Affiliation(s)
- Mahbubur Rahman
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| | - Pengcheng Gao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| | - Qun Zhao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| | - Roger Lalancette
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, United States
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2
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Liu B, Lin Z, Cheng T, Cao T, Zhu S. Synthesis of E-Dienyl Esters Using Acetylene as C2 Synthon. Org Lett 2023; 25:3573-3577. [PMID: 37154605 DOI: 10.1021/acs.orglett.3c01209] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The stereoselective synthesis of dienyl esters with high atom- and step-economy has been largely unexplored. Herein, we report an efficient approach for the synthesis of E-dienyl esters via rhodium catalysis using carboxylic acid and acetylene as C2 synthon through the cascade of cyclometalation and C-O coupling. This protocol features mild conditions, excellent functional group tolerance, and exclusive E-stereoselectivity and utility in the late-stage modification of pharmaceuticals and natural products.
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Affiliation(s)
- Boxiang Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zhicong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Tairan Cheng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Tongxiang Cao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Shifa Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
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3
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Liu Y, Han C, Shi H, Mackenroth AV, Zhang L, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Regio- and Stereoselective α-Acyloxy-β-Alkynylation of Ynol Ethers. J Org Chem 2023. [PMID: 36799936 DOI: 10.1021/acs.joc.2c02597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Enol esters and conjugated enynes are valuable structural motifs for synthetic chemistry and material sciences. Herein, the synthesis of tetra-substituted enol ester 2-iodobenzoate derivatives was achieved in good yields at room temperature through a gold-catalyzed acyloxyalkynylation of sensitive ynol ethers with ethynylbenziodoxolones (EBXs), the latter acting as bifunctional reactants. The conversion is highly regioselective with a broad substrate scope. Mechanistically, an Au(III) species is the key intermediate of an Au(I)/Au(III) redox cycle. The reaction is synthetically useful and can easily be scaled up to gram scale.
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Affiliation(s)
- Yaowen Liu
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Chunyu Han
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hongwei Shi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Alexandra V Mackenroth
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Linghua Zhang
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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4
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Ibni Hashim I, Tzouras NV, Janssens W, Scattolin T, Bourda L, Bhandary S, Van Hecke K, Nolan SP, Cazin CSJ. Synthesis of Carbene‐Metal‐Amido (CMA) Complexes and Their Use as Precatalysts for the Activator‐Free, Gold‐Catalyzed Addition of Carboxylic Acids to Alkynes. Chemistry 2022; 28:e202201224. [DOI: 10.1002/chem.202201224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Ishfaq Ibni Hashim
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Wim Janssens
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Thomas Scattolin
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Via Marzolo 1 35131 Padova Italy
| | - Laurens Bourda
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Subhrajyoti Bhandary
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
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5
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Ibni Hashim I, Tzouras NV, Ma X, Bourda L, Van Hecke K, Nolan SP, Cazin CSJ. Improved synthetic routes to N-heterocyclic carbene-metal-diketonato complexes of gold and copper. Dalton Trans 2022; 51:13246-13254. [PMID: 35979743 DOI: 10.1039/d2dt02276a] [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
In our search for simple synthetic routes to N-heterocyclic carbene (NHC)-metal complexes and their derivatives, we herein report an operationally simple, expedient and scalable method to obtain the widely used NHC-metal-diketonates. The reported complexes are synthesized for the first time under mild, aerobic conditions and in excellent yields in a sustainable manner. The protocol is general with regards to the anionic co-ligand and the ancillary carbene ligands. The spectroscopic and crystallographic characterization of the complexes reveal a bidentate binding mode of the diketonate ligand to copper while the gold-congener is C-bound. Finally, the reported Au complex was shown to be an efficient pre-catalyst for the hydrocarboxylation of alkynes.
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Affiliation(s)
- Ishfaq Ibni Hashim
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Xinyuan Ma
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Laurens Bourda
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Kristof Van Hecke
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
| | - Catherine S J Cazin
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000, Ghent, Belgium.
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6
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Rawat VK, Higashida K, Sawamura M. Construction of Heterobimetallic Catalytic Scaffold with a Carbene-Bipyridine Ligand: Gold–Zinc Two-Metal Catalysis for Intermolecular Addition of O-Nucleophiles to Nonactivated Alkynes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vishal Kumar Rawat
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Kosuke Higashida
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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7
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Corpas J, Arpa EM, Lapierre R, Corral I, Mauleón P, Arrayás RG, Carretero JC. Interplay between the Directing Group and Multifunctional Acetate Ligand in Pd-Catalyzed anti-Acetoxylation of Unsymmetrical Dialkyl-Substituted Alkynes. ACS Catal 2022; 12:6596-6605. [PMID: 35692253 PMCID: PMC9173690 DOI: 10.1021/acscatal.2c00710] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/07/2022] [Indexed: 12/31/2022]
Abstract
![]()
The cooperative action
of the acetate ligand, the 2-pyridyl sulfonyl
(SO2Py) directing group on the alkyne substrate, and the
palladium catalyst has been shown to be crucial for controlling reactivity,
regioselectivity, and stereoselectivity in the acetoxylation of unsymmetrical
internal alkynes under mild reaction conditions. The corresponding
alkenyl acetates were obtained in good yields with complete levels
of β-regioselectivity and anti-acetoxypalladation
stereocontrol. Experimental and computational analyses provide insight
into the reasons behind this delicate interplay between the ligand,
directing group, and the metal in the reaction mechanism. In fact,
these studies unveil the multiple important roles of the acetate ligand
in the coordination sphere at the Pd center: (i) it brings the acetic
acid reagent into close proximity to the metal to allow the simultaneous
activation of the alkyne and the acetic acid, (ii) it serves as an
inner-sphere base while enhancing the nucleophilicity of the acid,
and (iii) it acts as an intramolecular acid to facilitate protodemetalation
and regeneration of the catalyst. Further insight into the origin
of the observed regiocontrol is provided by the mapping of potential
energy profiles and distortion–interaction analysis.
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Affiliation(s)
- Javier Corpas
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - Enrique M. Arpa
- Division of Theoretical Chemistry, IFM, Linköping University, 581 83 Linköping, Sweden
| | - Romain Lapierre
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
| | - Inés Corral
- Departamento de Química, Facultad de Ciencias, UAM, Cantoblanco, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Pablo Mauleón
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Ramón Gómez Arrayás
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
| | - Juan C. Carretero
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), UAM, 28049 Madrid, Spain
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8
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Biswas S, Dewese KR, Raya B, RajanBabu TV. Catalytic Enantioselective Hydrovinylation of Trialkylsilyloxy and Acetoxy-1,3-Dienes: Cationic Co(I) Complexes for the Synthesis of Chiral Enolate Surrogates and Their Applications for Synthesis of Ketones and Cross-Coupling Reagents in High Enantiomeric Purity. ACS Catal 2022; 12:5094-5111. [DOI: 10.1021/acscatal.2c00546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Souvagya Biswas
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Kendra R. Dewese
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Balaram Raya
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T. V. RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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9
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Wang Q, Shi Y, Huang X, Wang Y, Jiao J, Tang Y, Li J, Xu S, Li Y. Ru(II)-Catalyzed Difunctional Pyridyloxy-Directed Regio- and Stereospecific Addition of Carboxylic Acids to Internal Alkynes. Org Lett 2021; 24:379-384. [PMID: 34935395 DOI: 10.1021/acs.orglett.1c04052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly efficient Ru(II)-catalyzed regio- and stereospecific hydro-oxycarbonylation of unsymmetrical internal alkynes bearing a difunctional 2-pyridyloxy directing group with carboxylic acids has been developed, which provides allylic (Z)-enol esters in good to excellent yields with a broad substrate scope under mild conditions. The difunctional directing group can be diversely derivatized, particularly undergoing allylic substitution with various nucleophiles to afford β-functionalized (Z)-enol esters without directing groups.
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Affiliation(s)
- Qin Wang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yan Shi
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Xiaoli Huang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yongzhuang Wang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jiao Jiao
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yuhai Tang
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Jing Li
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Silong Xu
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
| | - Yang Li
- Department of Material Chemistry, School of Chemistry, and Xi'an Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an 710049, P. R. China
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10
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Chintawar CC, Yadav AK, Kumar A, Sancheti SP, Patil NT. Divergent Gold Catalysis: Unlocking Molecular Diversity through Catalyst Control. Chem Rev 2021; 121:8478-8558. [PMID: 33555193 DOI: 10.1021/acs.chemrev.0c00903] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The catalyst-directed divergent synthesis, commonly termed as "divergent catalysis", has emerged as a promising technique as it allows chartering of structurally distinct products from common substrates simply by modulating the catalyst system. In this regard, gold complexes emerged as powerful catalysts as they offer unique reactivity profiles as compared to various other transition metal catalysts, primarily due to their salient electronic and geometrical features. Owing to the tunable soft π-acidic nature, gold catalysts not only evolved as superior contenders for catalyzing the reactions of alkynes, alkenes, and allenes but also, more intriguingly, have been found to provide divergent reaction pathways over other π-acid catalysts such as Ag, Pt, Pd, Rh, Cu, In, Sc, Hg, Zn, etc. The recent past has witnessed a renaissance in such examples wherein, by choosing gold catalysts over other transition metal catalysts or by fine-tuning the ligands, counteranions or oxidation states of the gold catalyst itself, a complete reactivity switch was observed. However, reviews documenting such examples are sporadic; as a result, most of the reports of this kind remained scattered in the literature, thereby hampering further development of this burgeoning field. By conceptualizing the idea of "Divergent Gold Catalysis (DGC)", this review aims to consolidate all such reports and provide a unified approach necessary to pave the way for further advancement of this exciting area. Based on the factors governing the divergence in product formation, an explicit classification of DGC has been provided. To gain a fundamental understanding of the divergence in observed reactivities and selectivities, the review is accompanied by mechanistic insights at appropriate places.
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Affiliation(s)
- Chetan C Chintawar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Amit K Yadav
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Anil Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Shashank P Sancheti
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Nitin T Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
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11
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Kumari C, Goswami A. A Facile Transition Metal‐Free Ionic Liquid [BMIM]OH Mediated Regio‐ and Stereoselective Hydrocarboxylation of Alkynylnitriles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Chandresh Kumari
- Department of Chemistry Indian Institute of Technology Ropar Nangal Road Rupnagar Punjab 140001 India
| | - Avijit Goswami
- Department of Chemistry Indian Institute of Technology Ropar Nangal Road Rupnagar Punjab 140001 India
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12
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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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13
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Abstract
An overview of the current state of mechanistic understanding of gold-catalyzed intermolecular alkyne hydrofunctionalization reactions is presented. Moving from the analysis of the main features of the by-now-generally accepted reaction mechanism, studies and evidences pointing out the mechanistic peculiarities of these reactions using different nucleophiles HNu that add to the alkyne triple bond are presented and discussed. The effects of the nature of the employed alkyne substrate and of the gold catalyst (employed ligands, counteranions, gold oxidation state), of additional additives and of the reaction conditions are also considered. Aim of this work is to provide the reader with a detailed mechanistic knowledge of this important reaction class, which will be invaluable for rapidly developing and optimizing synthetic protocols involving a gold-catalyzed alkyne hydrofunctionalization as a reaction step.
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14
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Gold-Catalyzed Addition of Carboxylic Acids to Alkynes and Allenes: Valuable Tools for Organic Synthesis. Catalysts 2020. [DOI: 10.3390/catal10101206] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In this contribution, the application of gold-based catalysts in the hydrofunctionalization reactions of alkynes and allenes with carboxylic acids is comprehensively reviewed. Both intra- and intermolecular processes, leading respectively to lactones and linear unsaturated esters, are covered. In addition, cascade transformations involving the initial cycloisomerization of an alkynoic acid are also discussed.
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15
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Abstract
The synthesis of two novel enol esters, namely hex-1-en-2-yl indole-2-carboxylate and hex-1-en-2-yl 1-(hex-1-en-2-yl)-indole-2-carboxylate, is presented. Both compounds were generated by addition of indole-2-carboxylic acid to 1-hexyne employing [RuCl2(η6-p-cymene)(PPh3)] and [AuCl(PPh3)]/AgPF6, respectively, as catalysts.
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16
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Liu G, Zhang X, Kuang G, Lu N, Fu Y, Peng Y, Xiao Q, Zhou Y. Phosphine-Free Ru-Catalyzed Regio- and Stereoselective Addition of Benzoic Acids to Trifluoromethylated Alkynes toward Facile Access to Trifluoromethyl Group-Substituted ( E)-Enol Esters. ACS OMEGA 2020; 5:4158-4166. [PMID: 32149245 PMCID: PMC7057715 DOI: 10.1021/acsomega.9b03936] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 11/25/2019] [Indexed: 06/10/2023]
Abstract
A combination of ruthenium catalyst with silver salt and copper salt was proved to be a highly efficient protocol for the direct addition reaction of benzoic acids with unsymmetrical trifluoromethylated internal alkynes. Diverse trifluoromethyl group-substituted (E)-enol esters were readily obtained for a broad substrate scope in moderate to good yields with excellent regio- and stereoselectivities under mild reaction conditions.
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Affiliation(s)
- Guangyuan Liu
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Xingxing Zhang
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Guanghua Kuang
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Naihao Lu
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Yang Fu
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Yiyuan Peng
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
| | - Qiang Xiao
- Jiangxi
Key Laboratory of Functional Organic Molecules, Jiangxi Science and Technology Normal University, No. 605 Fenglin Road, Nanchang 330013, China
| | - Yirong Zhou
- Key
Laboratory of Functional Small Organic Molecule, Ministry of Education,
College of Chemistry and Chemical Engineering, Jiangxi Normal University, No. 99 Ziyang Road, Nanchang 330022, China
- Hubei
Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation,
School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, No. 13 Hangkong Road, Wuhan 430030, China
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17
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Affiliation(s)
- Chenxi Yang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Xia Sheng
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Ling Zhang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Jiang Yu
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Dayun Huang
- Department of ChemistryLishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
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18
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Gold(I) Complexes with Ferrocenylphosphino Sulfonate Ligands: Synthesis and Application in the Catalytic Addition of Carboxylic Acids to Internal Alkynes in Water. Catalysts 2019. [DOI: 10.3390/catal9110955] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The synthesis and characterization of novel gold(I) complexes containing hydrophilic ferrocenylphosphino sulfonate ligands, i.e., compounds [AuCl{(η5-C5H3PR2(SO3iPr))Fe(η5-C5H5)}] (R = Ph (2a), p-Tol (2b), Cy (2c)), are presented, including a single-crystal X-ray diffraction study on 2a. Complexes 2a–c were checked as catalysts for the intermolecular addition of carboxylic acids to nonactivated internal alkynes using water as a green reaction medium. The best results in terms of activity were obtained with 2a in combination with AgOAc, which was able to promote the selective anti addition of a variety of aromatic, aliphatic, and α,β-unsaturated carboxylic acids to both symmetrical and unsymmetrical internal alkynes at 60 °C, employing metal loadings of only 2 mol %.
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19
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Zimin DP, Dar'in DV, Eliseeva AA, Novikov AS, Rassadin VA, Kukushkin VY. Gold-Catalyzed Functionalization of Semicarbazides with Terminal Alkynes to Achieve Substituted Semicarbazones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901108] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dmitry P. Zimin
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Dmitry V. Dar'in
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Anastasiya A. Eliseeva
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Alexander S. Novikov
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Valentin A. Rassadin
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
| | - Vadim Yu. Kukushkin
- Institute of Chemistry; Saint Petersburg State University; Universitetskaya Nab. 7/9 199034 Saint Petersburg Russian Federation
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20
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Praveen C. Carbophilic activation of π-systems via gold coordination: Towards regioselective access of intermolecular addition products. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901090] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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22
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Tang Y, Benaissa I, Huynh M, Vendier L, Lugan N, Bastin S, Belmont P, César V, Michelet V. An Original L‐shape, Tunable N‐Heterocyclic Carbene Platform for Efficient Gold(I) Catalysis. Angew Chem Int Ed Engl 2019; 58:7977-7981. [DOI: 10.1002/anie.201901090] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Yue Tang
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
| | - Idir Benaissa
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Mathieu Huynh
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Laure Vendier
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Noël Lugan
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Stéphanie Bastin
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Philippe Belmont
- Université Paris Descartes Faculté de Pharmacie de Paris UMR CNRS 8038 CiTCoM 4 avenue de l'Observatoire 75006 Paris France
| | - Vincent César
- LCC-CNRS Université de Toulouse CNRS 205 route de Narbonne 31077 Toulouse Cedex 4 France
| | - Véronique Michelet
- PSL Research University Chimie ParisTech—CNRS Institut de Recherche de Chimie Paris 75005 Paris France
- University Côte d'Azur Institut de Chimie de Nice, UMR 7272 CNRS Parc Valrose Faculté des Sciences 06100 Nice France
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23
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Samanta S, Mondal S, Hajra A. A convergent synthesis of vinyloxyimidazopyridine via Cu(i)-catalyzed three-component coupling. Org Biomol Chem 2019; 16:1088-1092. [PMID: 29243758 DOI: 10.1039/c7ob02883k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The synthesis of vinyloxyimidazopyridine with complete regio- and stereoselectivity has been achieved by the Cu(i)-catalyzed three-component coupling of 2-aminopyridine, 2-oxoaldehyde and alkyne. This protocol is operationally very simple and has much potential for the synthesis of heteroarylated vinyl ethers from basic chemicals. Steroidal imidazopyridinyl vinyl ether was obtained successfully from ethynylestradiol.
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Affiliation(s)
- Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235 West Bengal, India.
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24
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Dillon CC, Keophimphone B, Sanchez M, Kaur P, Muchalski H. Synthesis of 2-substituted benzo[b]thiophenes via gold(i)-NHC-catalyzed cyclization of 2-alkynyl thioanisoles. Org Biomol Chem 2018; 16:9279-9284. [PMID: 30484460 DOI: 10.1039/c8ob02196a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Benzo[b]thiophene heterocycles are important components of many important small molecule pharmaceuticals and drug candidates as well as organic semiconducting materials. Many methods have been developed for the construction of a benzo[b]thiophene core via cyclization reaction of alkynes. Although few catalytic reactions were disclosed, most methods rely on stoichiometric activation of alkynes. Here we report an efficient method for the synthesis of 2-substituted benzo[b]thiophenes from 2-alkynyl thioanisoles catalyzed by a gold(i)-IPr hydroxide that is applicable to a wide range of substrates with diverse electronic and steric properties. Additionally, we demonstrate experimentally that the acid additive and its conjugate base are essential to catalyst turnover.
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Affiliation(s)
- Christopher C Dillon
- California State University Fresno, 2555 E San Ramon Ave M/S SB70, Fresno, CA 93740, USA.
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25
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Chen JF, Li C. Enol Ester Synthesis via Cobalt-Catalyzed Regio- and Stereoselective Addition of Carboxylic Acids to Alkynes. Org Lett 2018; 20:6719-6724. [DOI: 10.1021/acs.orglett.8b02824] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jia-Feng Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Changkun Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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26
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Vil’ VA, Gomes GDP, Ekimova MV, Lyssenko KA, Syroeshkin MA, Nikishin GI, Alabugin IV, Terent’ev AO. Five Roads That Converge at the Cyclic Peroxy-Criegee Intermediates: BF3-Catalyzed Synthesis of β-Hydroperoxy-β-peroxylactones. J Org Chem 2018; 83:13427-13445. [DOI: 10.1021/acs.joc.8b02218] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vera A. Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp, 119991 Moscow, Russian Federation
| | - Gabriel dos Passos Gomes
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee 32309, United States
| | - Maria V. Ekimova
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp, 119991 Moscow, Russian Federation
- D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, Moscow 125047, Russian Federation
| | - Konstantin A. Lyssenko
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, Moscow 119991 Russian Federation
| | - Mikhail A. Syroeshkin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp, 119991 Moscow, Russian Federation
| | - Gennady I. Nikishin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp, 119991 Moscow, Russian Federation
| | - Igor V. Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee 32309, United States
| | - Alexander O. Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp, 119991 Moscow, Russian Federation
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27
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Steemers L, Wijsman L, van Maarseveen JH. Regio‐ and Stereoselective Chan‐Lam‐Evans Enol Esterification of Carboxylic Acids with Alkenylboroxines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800914] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Luuk Steemers
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
| | - Linda Wijsman
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
| | - Jan H. van Maarseveen
- Van't Hoff Institute for Molecular SciencesUniversity of Amsterdam Science Park 904 1098XH Amsterdam The Netherlands
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28
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Kikui N, Hinoue T, Usuki Y, Satoh T. Synthesis of Enol Esters through Silver-catalyzed or -mediated Hydroacyloxylation of Internal Alkynes. CHEM LETT 2018. [DOI: 10.1246/cl.170986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nanae Kikui
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tomoaki Hinoue
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Yoshinosuke Usuki
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Tetsuya Satoh
- Department of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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29
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Zhang SL, Wan HX, Deng ZQ. A computational study on the mechanism of ynamide-mediated amide bond formation from carboxylic acids and amines. Org Biomol Chem 2017; 15:6367-6374. [PMID: 28717802 DOI: 10.1039/c7ob01378g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports a computational study elucidating the reaction mechanism for ynamide-mediated amide bond formation from carboxylic acids and amines. The mechanisms have been studied in detail for ynamide hydrocarboxylation and the subsequent aminolysis of the resulting adduct by an amine. Ynamide hydrocarboxylation is kinetically favorable and thermodynamically irreversible, resulting in the formation of a key low-lying intermediate CP1 featuring geminal vinylic acyloxy and sulfonamide groups. The aminolysis of CP1 by the amine is proposed to be catalyzed by the carboxylic acid itself that imparts favourable bifunctional effects. In the proposed key transition state TSaminolysis-acid-iso2, the amine undergoes direct nucleophilic substitution at the acyl of CP1 to replace the enolate group in a concerted way, which is promoted by secondary hydrogen bonding of carboxylic acid with both the amine and CP1. These secondary interactions are suggested to increase the nucleophilicity of the amine and to activate the Cacyl-O bond to be cleaved, thereby stabilizing the aminolysis transition state. The concerted aminolysis mechanism is competitive with the classic stepwise nucleophilic acyl substitution mechanism that features sequential amine addition to acyl/intramolecular proton transfer/C-O bond cleavage and a key tetrahedral intermediate. Based on the mechanistic model, the carboxylic acid substrate effect and studies of more acidic CF3SO3H as the catalyst are in good agreement with the experimental observations, lending further support for the mechanistic model. The bifunctional catalytic effect of the carboxylic acid substrate may widely play a role in related amide bond-forming reactions and peptide formation chemistry.
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Affiliation(s)
- Song-Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
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30
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León F, González-Liste PJ, García-Garrido SE, Arribas I, Rubio M, Cadierno V, Pizzano A. Broad Scope Synthesis of Ester Precursors of Nonfunctionalized Chiral Alcohols Based on the Asymmetric Hydrogenation of α,β-Dialkyl-, α,β-Diaryl-, and α-Alkyl-β-aryl-vinyl Esters. J Org Chem 2017; 82:5852-5867. [DOI: 10.1021/acs.joc.7b00710] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Félix León
- Instituto
de Investigaciones Químicas (IIQ) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC, Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Pedro J. González-Liste
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Sergio E. García-Garrido
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Inmaculada Arribas
- Instituto
de Investigaciones Químicas (IIQ) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC, Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Miguel Rubio
- Instituto
de Investigaciones Químicas (IIQ) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC, Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Victorio Cadierno
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Antonio Pizzano
- Instituto
de Investigaciones Químicas (IIQ) and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC, Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
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31
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González-Liste PJ, Francos J, García-Garrido SE, Cadierno V. Gold-Catalyzed Regio- and Stereoselective Addition of Carboxylic Acids to Iodoalkynes: Access to (Z)-β-Iodoenol Esters and 1,4-Disubstituted (Z)-Enynyl Esters. J Org Chem 2017; 82:1507-1516. [DOI: 10.1021/acs.joc.6b02712] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Pedro J. González-Liste
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Javier Francos
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Sergio E. García-Garrido
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos
Organometálicos y Catálisis (Unidad Asociada al CSIC),
Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
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32
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González-Liste PJ, García-Garrido SE, Cadierno V. Gold(i)-catalyzed addition of carboxylic acids to internal alkynes in aqueous medium. Org Biomol Chem 2017; 15:1670-1679. [DOI: 10.1039/c6ob02800d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A broad scope catalytic system for the intermolecular addition of carboxylic acids to internal alkynes, in water under mild conditions, has been developed.
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Affiliation(s)
- Pedro J. González-Liste
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- IUQOEM
- Universidad de Oviedo
| | - Sergio E. García-Garrido
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- IUQOEM
- Universidad de Oviedo
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC)
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- IUQOEM
- Universidad de Oviedo
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33
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Foarta F, Landis CR. Condensation Oligomers with Sequence Control but without Coupling Reagents and Protecting Groups via Asymmetric Hydroformylation and Hydroacyloxylation. J Org Chem 2016; 81:11250-11255. [DOI: 10.1021/acs.joc.6b02210] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Floriana Foarta
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Clark R. Landis
- Department
of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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34
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Krause T, Baader S, Erb B, Gooßen LJ. Atom-economic catalytic amide synthesis from amines and carboxylic acids activated in situ with acetylenes. Nat Commun 2016; 7:11732. [PMID: 27282773 PMCID: PMC4906407 DOI: 10.1038/ncomms11732] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 04/25/2016] [Indexed: 12/14/2022] Open
Abstract
Amide bond-forming reactions are of tremendous significance in synthetic chemistry. Methodological research has, in the past, focused on efficiency and selectivity, and these have reached impressive levels. However, the unacceptable amounts of waste produced have led the ACS GCI Roundtable to label 'amide bond formation avoiding poor atom economy' as the most pressing target for sustainable synthetic method development. In response to this acute demand, we herein disclose an efficient one-pot amide coupling protocol that is based on simple alkynes as coupling reagents: in the presence of a dichloro[(2,6,10-dodecatriene)-1,12-diyl]ruthenium catalyst, carboxylate salts of primary or secondary amines react with acetylene or ethoxyacetylene to vinyl ester intermediates, which undergo aminolysis to give the corresponding amides along only with volatile acetaldehyde or ethyl acetate, respectively. The new amide synthesis is broadly applicable to the synthesis of structurally diverse amides, including dipeptides.
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Affiliation(s)
- Thilo Krause
- FB Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin Schrödinger Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Sabrina Baader
- FB Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin Schrödinger Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Benjamin Erb
- FB Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin Schrödinger Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Lukas J Gooßen
- FB Chemie-Organische Chemie, Technische Universität Kaiserslautern, Erwin Schrödinger Strasse Geb. 54, 67663 Kaiserslautern, Germany
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35
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González-Liste PJ, León F, Arribas I, Rubio M, García-Garrido SE, Cadierno V, Pizzano A. Highly Stereoselective Synthesis and Hydrogenation of (Z)-1-Alkyl-2-arylvinyl Acetates: a Wide Scope Procedure for the Preparation of Chiral Homobenzylic Esters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00282] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pedro J. González-Liste
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Félix León
- Instituto
de Investigaciones Químicas and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Inmaculada Arribas
- Instituto
de Investigaciones Químicas and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Miguel Rubio
- Instituto
de Investigaciones Químicas and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
| | - Sergio E. García-Garrido
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio
de Compuestos Organometálicos y Catálisis (Unidad Asociada
al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA),
Departamento de Química Orgánica e Inorgánica,
Instituto Universitario de Química Organometálica “Enrique
Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Antonio Pizzano
- Instituto
de Investigaciones Químicas and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, 41092 Sevilla, Spain
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36
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Jeschke J, Engelhardt TB, Lang H. Ruthenium-Catalyzed Hydrocarboxylation of Internal Alkynes. European J Org Chem 2016. [DOI: 10.1002/ejoc.201501583] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Jeschke J, Gäbler C, Lang H. Regioselective Formation of Enol Esters from the Ruthenium-Catalyzed Markovnikov Addition of Carboxylic Acids to Alkynes. J Org Chem 2016; 81:476-84. [DOI: 10.1021/acs.joc.5b02293] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Janine Jeschke
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
| | - Christian Gäbler
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
| | - Heinrich Lang
- Technische Universität Chemnitz, Faculty of Natural Sciences, Institute
of Chemistry, Inorganic Chemistry, 09107 Chemnitz, Germany
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38
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Zeng X, Liu S, Xu B. Stable yet reactive cationic gold catalysts with carbon based counterions. RSC Adv 2016. [DOI: 10.1039/c6ra19064b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Widely applicable cationic gold catalysts with a carbon based counterion.
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Affiliation(s)
- Xiaojun Zeng
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Shiwen Liu
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
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39
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Casavant BJ, Khoder ZM, Berhane IA, Chemler SR. Copper(II)-Promoted Cyclization/Difunctionalization of Allenols and Allenylsulfonamides: Synthesis of Heterocycle-Functionalized Vinyl Carboxylate Esters. Org Lett 2015; 17:5958-61. [PMID: 26624861 DOI: 10.1021/acs.orglett.5b02833] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A unique method to affect intramolecular aminooxygenation and dioxygenation of allenols and allenylsulfonamides is described. These operationally simple reactions occur under neutral or basic conditions where copper(II) carboxylates serve as reaction promoter, oxidant, and carboxylate source. Moderate to high yields of heterocycle-functionalized vinyl carboxylate esters are formed with moderate to high levels of diastereoselectivity. Such vinyl carboxylate esters could serve as precursors to α-amino and α-oxy ketones and derivatives thereof.
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Affiliation(s)
- Barbara J Casavant
- Department of Chemistry, Natural Science Complex, The State University of New York at Buffalo , Buffalo, New York 14260, United States
| | - Zainab M Khoder
- Department of Chemistry, Natural Science Complex, The State University of New York at Buffalo , Buffalo, New York 14260, United States
| | - Ilyas A Berhane
- Department of Chemistry, Natural Science Complex, The State University of New York at Buffalo , Buffalo, New York 14260, United States
| | - Sherry R Chemler
- Department of Chemistry, Natural Science Complex, The State University of New York at Buffalo , Buffalo, New York 14260, United States
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40
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Dupuy S, Gasperini D, Nolan SP. Highly Efficient Gold(I)-Catalyzed Regio- and Stereoselective Hydrocarboxylation of Internal Alkynes. ACS Catal 2015; 5:6918-6921. [PMID: 29291135 PMCID: PMC5745071 DOI: 10.1021/acscatal.5b02090] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/09/2015] [Indexed: 11/29/2022]
Abstract
![]()
We report the highly efficient gold-catalyzed
hydrocarboxylation
of internal alkynes that operates under solvent- and silver-free conditions.
This new, simple, and eco-friendly protocol allows for the synthesis
of a wide variety of functionalized aryl and alkyl enol esters in
high yields, with Z-stereospecificity and good regioselectivities
and without the requirement for purification by chromatography. This
process represents an expedient, operationally simple method for the
synthesis of enol esters.
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Affiliation(s)
- Stéphanie Dupuy
- EaStCHEM
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, U.K
| | - Danila Gasperini
- EaStCHEM
School of Chemistry, University of St. Andrews, North Haugh, St. Andrews, Fife KY16 9ST, U.K
| | - Steven P. Nolan
- Chemistry
Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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41
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Nagamoto M, Nishimura T. Iridium-catalyzed asymmetric cyclization of alkenoic acids leading to γ-lactones. Chem Commun (Camb) 2015. [PMID: 26216621 DOI: 10.1039/c5cc05393e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric cyclization of alkenoic acids was realized by the use of an iridium/chiral bisphosphine catalyst, giving high yields of the corresponding γ-lactones with good enantioselectivity.
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Affiliation(s)
- Midori Nagamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
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42
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Scully SS, Zheng SL, Wagner BK, Schreiber SL. Synthesis of oxazocenones via gold(I)-catalyzed 8-endo-dig hydroalkoxylation of alkynamides. Org Lett 2015; 17:418-21. [PMID: 25569027 PMCID: PMC4323038 DOI: 10.1021/ol503273v] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Several benzoxazocenones have been found to exhibit novel cellular activities. In the present study, we report a gold(I)-catalyzed 8-endo-dig hydroalkoxylation reaction of alkynamides to access analogous oxazocenone scaffolds. This methodology provided an advanced intermediate, which was elaborated to a des-benzo analog of a bioactive benzoxazocenone.
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Affiliation(s)
- Stephen S Scully
- Center for the Science of Therapeutics, Broad Institute , 415 Main Street, Cambridge, Massachusetts 02142, United States
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43
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Goodwin JA, Aponick A. Regioselectivity in the Au-catalyzed hydration and hydroalkoxylation of alkynes. Chem Commun (Camb) 2015; 51:8730-41. [DOI: 10.1039/c5cc00120j] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The issue of regioselectivity in the Au-catalyzed hydration and hydroalkoxylation of alkynes is a perpetual challenge that essentially remains an unsolved problem with respect to general solutions.
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Affiliation(s)
- Justin A. Goodwin
- Department of Chemistry
- Center for Heterocyclic Compounds
- University of Florida
- Gainesville
- USA
| | - Aaron Aponick
- Department of Chemistry
- Center for Heterocyclic Compounds
- University of Florida
- Gainesville
- USA
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44
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Handa S, Subramanium SS, Ruch AA, Tanski JM, Slaughter LM. Ligand- and Brønsted acid/base-switchable reaction pathways in gold(i)-catalyzed cycloisomerizations of allenoic acids. Org Biomol Chem 2015; 13:3936-49. [DOI: 10.1039/c4ob02640c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Competing gold-catalyzed cycloisomerizations of γ-allenoic acids are optimized through ligand and Brønsted acid/base effects, affording three distinct classes of lactones.
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Affiliation(s)
- Sachin Handa
- Department of Chemistry
- Oklahoma State University
- Stillwater
- USA
| | | | - Aaron A. Ruch
- Department of Chemistry
- Oklahoma State University
- Stillwater
- USA
- Department of Chemistry
| | | | - LeGrande M. Slaughter
- Department of Chemistry
- Oklahoma State University
- Stillwater
- USA
- Department of Chemistry
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45
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Kleman P, González-Liste PJ, García-Garrido SE, Cadierno V, Pizzano A. Asymmetric Hydrogenation of 1-Alkyl and 1-Aryl Vinyl Benzoates: A Broad Scope Procedure for the Highly Enantioselective Synthesis of 1-Substituted Ethyl Benzoates. ACS Catal 2014. [DOI: 10.1021/cs501402z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Patryk Kleman
- Instituto de Investigaciones Químicas (IIQ) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
| | - Pedro J. González-Liste
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Sergio E. García-Garrido
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO−CINQA), Departamento de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica “Enrique Moles”, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Antonio Pizzano
- Instituto de Investigaciones Químicas (IIQ) and Centro de Innovación en Química Avanzada (ORFEO−CINQA), CSIC and Universidad de Sevilla, Américo Vespucio 49, 41092 Sevilla, Spain
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46
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Yin J, Bai Y, Mao M, Zhu G. Silver-catalyzed regio- and stereoselective addition of carboxylic acids to ynol ethers. J Org Chem 2014; 79:9179-85. [PMID: 25188878 DOI: 10.1021/jo501615a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A silver-catalyzed trans addition of carboxylic acids to ynol ethers is described. The reaction has a broad scope with respect to carboxylic acids and ynol ethers, delivering (Z)-α-alkoxy enol esters in good yields with excellent regio- and stereoselectivity. Meaningfully, the Ni-catalyzed selective coupling of alkenyl C-OPiv bonds of (Z)-α-alkoxy enol esters with boronic acids enables a convenient route to the access of (E)-enol ethers. As such, the two-step procedure, consisted of a hydrocarboxylation and a subsequent Suzuki-Miyaura coupling, offers a formal trans hydroarylation of ynol ethers, thus providing a good complementary method to our previous report.
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Affiliation(s)
- Jing Yin
- Department of Chemistry, Zhejiang Normal University , 688 Yingbin Road, Jinhua 321004, China
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47
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Han J, Shimizu N, Lu Z, Amii H, Hammond GB, Xu B. Efficient generation and increased reactivity in cationic gold via Brønsted acid or Lewis acid assisted activation of an imidogold precatalyst. Org Lett 2014; 16:3500-3. [PMID: 24956218 PMCID: PMC4084832 DOI: 10.1021/ol501443m] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 12/22/2022]
Abstract
Brønsted or Lewis acid assisted activation of an imidogold precatalyst (L-Au-Pht, Pht = phthalimide) offers a superior way to generate cationic gold compared with the commonly used silver-based system. It is also broadly applicable for most common gold-catalyzed reactions. For reactions that require milder conditions, milder acids can be used for optimized efficiency.
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Affiliation(s)
- Junbin Han
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Naoto Shimizu
- Department
of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Gunma 376-8515, Japan
| | - Zhichao Lu
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Hideki Amii
- Department
of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, Gunma 376-8515, Japan
| | - Gerald B. Hammond
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Bo Xu
- Department
of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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48
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Wang Y, Wang Z, Li Y, Wu G, Cao Z, Zhang L. A general ligand design for gold catalysis allowing ligand-directed anti-nucleophilic attack of alkynes. Nat Commun 2014; 5:3470. [PMID: 24704803 PMCID: PMC4119785 DOI: 10.1038/ncomms4470] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 02/19/2014] [Indexed: 01/07/2023] Open
Abstract
Most homogenous gold catalyses demand ≥0.5 mol % catalyst loading. Due to the high cost of gold, these reactions are unlikely to be applicable in medium or large scale applications. Here we disclose a novel ligand design based on the privileged biphenyl-2-phosphine framework that offers a potentially general approach to dramatically lowering catalyst loading. In this design, an amide group at the 3’ position of the ligand framework directs and promotes nucleophilic attack at the ligand gold complex-activated alkyne, which is unprecedented in homogeneous gold catalysis considering the spatial challenge of using ligand to reach antiapproaching nucleophile in a linear P-Au-alkyne centroid structure. With such a ligand, the gold(I) complex becomes highly efficient in catalyzing acid addition to alkynes, with a turnover number up to 99,000. Density functional theory calculations support the role of the amide moiety in directing the attack of carboxylic acid via hydrogen bonding.
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Affiliation(s)
- Yanzhao Wang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Zhixun Wang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Yuxue Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Ling Ling Road 345, Shanghai 200032, China
| | - Gongde Wu
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Zheng Cao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, USA
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49
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Xi Y, Dong B, McClain EJ, Wang Q, Gregg TL, Akhmedov NG, Petersen JL, Shi X. Gold-Catalyzed Intermolecular CS Bond Formation: Efficient Synthesis of α-Substituted Vinyl Sulfones. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310142] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Xi Y, Dong B, McClain EJ, Wang Q, Gregg TL, Akhmedov NG, Petersen JL, Shi X. Gold-catalyzed intermolecular C-S bond formation: efficient synthesis of α-substituted vinyl sulfones. Angew Chem Int Ed Engl 2014; 53:4657-61. [PMID: 24692330 DOI: 10.1002/anie.201310142] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 02/05/2014] [Indexed: 11/11/2022]
Abstract
A general method for the synthesis of α-substituted vinyl sulfones makes use of a combination of a triazole gold complex and gallium triflate. This efficient CS bond formation between simple terminal alkynes and sulfinic acids provides access to various α-substituted vinyl sulfones.
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Affiliation(s)
- Yumeng Xi
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506 (USA) http://community.wvu.edu/∼xs007/
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