101
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Darmandeh H, Löffler J, Tzouras NV, Dereli B, Scherpf T, Feichtner K, Vanden Broeck S, Van Hecke K, Saab M, Cazin CSJ, Cavallo L, Nolan SP, Gessner VH. Au⋅⋅⋅H−C Hydrogen Bonds as Design Principle in Gold(I) Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108581] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Heidar Darmandeh
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Julian Löffler
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Busra Dereli
- Physical Sciences & Engineering Division (PSE) KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Thorsten Scherpf
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Kai‐Stephan Feichtner
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Sofie Vanden Broeck
- 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
| | - Marina Saab
- 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
| | - Luigi Cavallo
- Physical Sciences & Engineering Division (PSE) KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology (KAUST) Thuwal 23955-6900 Saudi Arabia
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281, S-3 9000 Ghent Belgium
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry II Faculty of Chemistry and Biochemistry Ruhr-University Bochum Universitätsstraße 150 44801 Bochum Germany
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102
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Lin X, Liu X, Wang K, Li Q, Liu Y, Li C. Biomimetic approach to the catalytic enantioselective synthesis of tetracyclic isochroman. Nat Commun 2021; 12:4958. [PMID: 34400633 PMCID: PMC8368254 DOI: 10.1038/s41467-021-25198-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 07/22/2021] [Indexed: 11/25/2022] Open
Abstract
Polyketide oligomers containing the structure of tetracyclic isochroman comprise a large class of natural products with diverse activity. However, a general and stereoselective method towards the rapid construction of this structure remains challenging due to the inherent instability and complex stereochemistry of polyketide. By mimicking the biosynthetic pathway of this structurally diverse set of natural products, we herein develop an asymmetric hetero-Diels–Alder reaction of in-situ generated isochromene and ortho-quinonemethide. A broad range of tetracyclic isochroman frameworks are prepared in good yields and excellent stereoinduction (up to 95% ee) from readily available α-propargyl benzyl alcohols and 2-(hydroxylmethyl) phenols under mild conditions. This direct enantioselective cascade reaction is achieved by a Au(I)/chiral Sc(III) bimetallic catalytic system. Experimental studies indicate that the key hetero-Diels-Alder reaction involves a stepwise pathway, and the steric hindrance between in-situ generated isochromene and t-Bu group of Sc(III)/N,N’-dioxide complex is responsible for the enantioselectivity in the hetero-Diels–Alder reaction step. General and stereoselective synthesis of tetracyclic isochroman-containing polyketide oligomers is challenging. Here, the authors report on an Au(I)/chiral Sc(III) bimetallic catalyst for a biomimetic asymmetric hetero-Diels–Alder reaction for in-situ generation of isochromene and ortho-quinonemethide.
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Affiliation(s)
- Xiangfeng Lin
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Xianghui Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Kai Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Qian Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yan Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
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103
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Ang PL, Nguyen VH, Yip JHK. A dynamic tetranuclear gold(i)-cyclophane - gold(i)-centred chirality and fluxionality arising from an intramolecular shift of Au-S bonds. Dalton Trans 2021; 50:11422-11428. [PMID: 34346461 DOI: 10.1039/d1dt01984h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tetranuclear gold(i) complex [Au4(μ-PAnP)2(μ-L)2] (PAnP = 9,10-bis(diphenylphosphino)anthracene and L = benzene-1,2-dithiolate) has been synthesized and characterised by multinuclear NMR and X-ray crystallography. The molecule has a cyclophane-like structure which can be considered to be composed of two [Au2(μ-PAnP)(μ-L)] units held together by Au-S bonds and aurophilic interactions (Au-Au = 3.0712(2) Å). L acts as a chelating and bridging ligand with one of its S atoms bonded to two Au ions as sulfonium ions and there are two Au2S2 cores on each side of the cyclophane. A sulfur atom in each Au2S2 core is a chiral sulfonium ion, being bonded to two chemically distinct Au ions. Two Au ions are bonded to four atoms (2S, P and Au) in an asymmetric environment, making them a rare example of gold(i)-centred chirality. The two Au2S2 cores have RAu, RS and SAu, SS configurations, and the chiralities of the sulfonium ion and the gold ion are correlated. Variable-temperature NMR spectroscopy showed that the metallacyclophane undergoes rapid exchange in solution. A bond shift mechanism involving simultaneous cleavage and formation of Au-S bonds is proposed for the exchange.
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Affiliation(s)
- Pau Lin Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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104
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Simultaneous construction of axial and planar chirality by gold/TY-Phos-catalyzed asymmetric hydroarylation. Nat Commun 2021; 12:4609. [PMID: 34326337 PMCID: PMC8322429 DOI: 10.1038/s41467-021-24678-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/30/2021] [Indexed: 11/24/2022] Open
Abstract
The simultaneous construction of two different chiralities via a simple operation poses considerable challenge. Herein a cationic gold-catalyzed asymmetric hydroarylation of ortho-alkynylaryl ferrocenes derivatives is developed, which enable the simultaneous construction of axial and planar chirality. The here identified TY-Phos derived gold complex is responsible for the high yield, good diastereoselectivity (>20:1 dr), high enantioselectivities (up to 99% ee) and mild conditions. The catalyst system also shows potential application in the synthesis of chiral biaryl compounds. The cause of high enantioselectivity of this hydroarylation is investigated with density functional theory caculation. The simultaneous construction of two different types of chiralities is challenging. Here, the authors report a cationic gold-catalyzed asymmetric hydroarylation of ortho-alkynylaryl ferrocene derivatives, which enabled the simultaneous construction of axial and planar chirality.
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105
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Abstract
In this contribution, we provide an overview of the main avenues that have emerged in gold coordination chemistry during the last years. The unique properties of gold have motivated research in gold chemistry, and especially regarding the properties and applications of gold compounds in catalysis, medicine, and materials chemistry. The advances in the synthesis and knowledge of gold coordination compounds have been possible with the design of novel ligands becoming relevant motifs that have allowed the preparation of elusive complexes in this area of research. Strong donor ligands with easily modulable electronic and steric properties, such as stable singlet carbenes or cyclometalated ligands, have been decisive in the stabilization of gold(0) species, gold fluoride complexes, gold hydrides, unprecedented π complexes, or cluster derivatives. These new ligands have been important not only from the fundamental structure and bonding studies but also for the synthesis of sophisticated catalysts to improve activity and selectivity of organic transformations. Moreover, they have enabled the facile oxidative addition from gold(I) to gold(III) and the design of a plethora of complexes with specific properties.
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Affiliation(s)
- Raquel P Herrera
- Laboratorio de Organocatálisis Asimétrica Departamento de Química Orgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
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106
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Collado A, Nelson DJ, Nolan SP. Optimizing Catalyst and Reaction Conditions in Gold(I) Catalysis-Ligand Development. Chem Rev 2021; 121:8559-8612. [PMID: 34259505 DOI: 10.1021/acs.chemrev.0c01320] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review considers phosphine and N-heterocyclic carbene complexes of gold(I) that are used as (pre)catalysts for a range of reactions in organic synthesis. These are divided according to the structure of the ligand, with the narrative focusing on studies that offer a quantitative comparison between the ligands and readily available or widely used existing systems.
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Affiliation(s)
- Alba Collado
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente, 7, 28049 Madrid, Spain
| | - David J Nelson
- WestCHEM Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent, Belgium
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107
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Jia T, Fan S, Li F, Ye X, Zhang W, Song Z, Shi X. Achieving Aliphatic Amine Addition to Arylalkynes via the Lewis Acid Assisted Triazole-Gold (TA-Au) Catalyst System. Org Lett 2021; 23:6019-6023. [PMID: 34279959 DOI: 10.1021/acs.orglett.1c02098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Transition metal catalyzed intermolecular hydroamination of the arylalkynes with aliphatic amine is generally problematic due to the good coordination between amine and metal cation. With the combination of 1,2,3-triazole coordinated gold(I) catalyst (TA-Au) and Zn(OTf)2 cocatalyst, this challenging transformation was achieved with good to excellent yields and regioselectivity. Compared to previously reported methods, this approach offered an alternative catalyst system to achieve this fundamental chemical transformation with high efficiency and practical conditions.
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Affiliation(s)
- Teng Jia
- State key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012 China
| | - Shengyu Fan
- State key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012 China
| | - Fengmian Li
- State key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012 China
| | - Xiaohan Ye
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Wenke Zhang
- State key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012 China
| | - Zhiguang Song
- State key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, Jilin 130012 China
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
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108
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Cera G, Giovanardi G, Secchi A, Arduini A. Merging Molecular Recognition and Gold(I) Catalysis with Triphoscalix[6]arene Ligands. Chemistry 2021; 27:10261-10266. [PMID: 34002908 DOI: 10.1002/chem.202101323] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Indexed: 12/17/2022]
Abstract
We report the synthesis and characterization of novel triphosphine calix[6]arene ligands. These supramolecular wheels, with recognition features governed by the hydrogen-bonding domain, were employed to synthesize multitasking trinuclear gold(I) complexes as a new platform for the synthesis of interwoven (pseudo)rotaxane species. In parallel, the multivalent, metal-bonded upper rim displayed catalytic features promoting highly selective gold-catalyzed cycloisomerization reactions of 1,6-enynes.
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Affiliation(s)
- Gianpiero Cera
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Gabriele Giovanardi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Andrea Secchi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
| | - Arturo Arduini
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy
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109
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Bao M, Xie X, Hu W, Xu X. Gold‐Catalyzed Carbocyclization/C=N Bond Formation Cascade of Alkyne‐Tethered Diazo Compounds with Benzo[
c
]isoxazoles for the Assembly of 4‐Iminonaphthalenones and Indenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100602] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ming Bao
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 China
| | - Xiongda Xie
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 China
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 China
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110
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Baars J, Grimm I, Blunk D, Neudörfl J, Schmalz H. Enantioselektive Totalsynthese und Strukturrevision von Dysiherbol A. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Julian Baars
- University of Cologne Department of Chemistry Greinstraße 4 50939 Köln Deutschland
| | - Isabelle Grimm
- University of Cologne Department of Chemistry Greinstraße 4 50939 Köln Deutschland
| | - Dirk Blunk
- University of Cologne Department of Chemistry Greinstraße 4 50939 Köln Deutschland
| | - Jörg‐Martin Neudörfl
- University of Cologne Department of Chemistry Greinstraße 4 50939 Köln Deutschland
| | - Hans‐Günther Schmalz
- University of Cologne Department of Chemistry Greinstraße 4 50939 Köln Deutschland
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111
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Jouhannet R, Dagorne S, Blanc A, de Frémont P. Chiral Gold(III) Complexes: Synthesis, Structure, and Potential Applications. Chemistry 2021; 27:9218-9240. [PMID: 33780060 DOI: 10.1002/chem.202100415] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Indexed: 11/10/2022]
Abstract
Since the beginning of the 2000's, homogeneous gold catalysis has emerged as a powerful tool to promote the cyclization of unsaturated substrates with excellent regioselectivity allowing the synthesis of elaborated organic scaffolds. An important goal to achieve in gold catalysis is the possibility to induce enantioselective transformations by the assistance of chiral complexes. Unfortunately, the linear geometry of coordination for gold usually encountered in complexes at the +1 oxidation states renders this goal very challenging. In consequence, the interest toward the synthesis of chiral gold(III) complexes is steadily growing. Indeed, the square planar geometry of the gold(III) cation appears more suitable to promote chiral induction. Beside catalysis, gold(III) complexes have also shown promising potential in the field of pharmacology. Herein, syntheses and applications of well-defined gold(III) complexes reported over the last fifteen years are summarized.
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Affiliation(s)
- Rémi Jouhannet
- Equipe de Synthèse, Réactivité et Catalyse Organométalliques, UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081, Strasbourg, France
| | - Samuel Dagorne
- Equipe de Synthèse, Réactivité et Catalyse Organométalliques, UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081, Strasbourg, France
| | - Aurélien Blanc
- Laboratoire de Synthèse, Réactivité Organique et Catalyse, UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081, Strasbourg, France
| | - Pierre de Frémont
- Equipe de Synthèse, Réactivité et Catalyse Organométalliques, UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081, Strasbourg, France
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112
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Baars J, Grimm I, Blunk D, Neudörfl J, Schmalz H. Enantioselective Total Synthesis and Structural Revision of Dysiherbol A. Angew Chem Int Ed Engl 2021; 60:14915-14920. [PMID: 33978302 PMCID: PMC8251742 DOI: 10.1002/anie.202105733] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Indexed: 12/25/2022]
Abstract
A 12-step total synthesis of the natural product dysiherbol A, a strongly anti-inflammatory and anti-tumor avarane meroterpene isolated from the marine sponge Dysidea sp., was elaborated. As key steps, the synthesis features an enantioselective Cu-catalyzed 1,4-addition/enolate-trapping opening move, an Au-catalyzed double cyclization to build up the tetracyclic core-carbon skeleton, and a late installation of the C5-bridgehead methyl group via proton-induced cyclopropane opening associated with spontaneous cyclic ether formation. The obtained pentacyclic compound (corresponding to an anhydride of the originally suggested structure for dysiherbol A) showed identical spectroscopic data as the natural product, but an opposite molecular rotation. CD-spectroscopic measurements finally confirmed that both the constitution and the absolute configuration of the originally proposed structure of (+)-dysiherbol A need to be revised.
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Affiliation(s)
- Julian Baars
- University of CologneDepartment of ChemistryGreinstrasse 450939CologneGermany
| | - Isabelle Grimm
- University of CologneDepartment of ChemistryGreinstrasse 450939CologneGermany
| | - Dirk Blunk
- University of CologneDepartment of ChemistryGreinstrasse 450939CologneGermany
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113
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Zhu XQ, Hong P, Zheng YX, Zhen YY, Hong FL, Lu X, Ye LW. Copper-catalyzed asymmetric cyclization of alkenyl diynes: method development and new mechanistic insights. Chem Sci 2021; 12:9466-9474. [PMID: 34349921 PMCID: PMC8278876 DOI: 10.1039/d1sc02773e] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/11/2021] [Indexed: 12/30/2022] Open
Abstract
Metal carbenes have proven to be one of the most important and useful intermediates in organic synthesis, but catalytic asymmetric reactions involving metal carbenes are still scarce and remain a challenge. Particularly, the mechanistic pathway and chiral induction model in these asymmetric transformations are far from clear. Described herein is a copper-catalyzed asymmetric cyclization of alkenyl diynes involving a vinylic C(sp2)–H functionalization, which constitutes the first asymmetric vinylic C(sp2)–H functionalization through cyclopentannulation. Significantly, based on extensive mechanistic studies including control experiments and theoretical calculations, a revised mechanism involving a novel type of endocyclic copper carbene via remote-stereocontrol is proposed, thus providing new mechanistic insight into the copper-catalyzed asymmetric diyne cyclization and representing a new chiral control pattern in asymmetric catalysis based on remote-stereocontrol and vinyl cations. This method enables the practical and atom-economical construction of an array of valuable chiral polycyclic-pyrroles in high yields and enantioselectivities. A copper-catalyzed asymmetric cyclization of alkenyl diynes involving a vinylic C(sp2)–H functionalization is reported, enabling the construction of various valuable chiral polycyclic-pyrroles in high yields and enantioselectivities.![]()
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Affiliation(s)
- Xin-Qi Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Pan Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Yan-Xin Zheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Ying-Ying Zhen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Feng-Lin Hong
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Long-Wu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China .,State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences Shanghai 200032 China
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114
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Harris RJ, Nakafuku K, Duncan AN, Carden RG, Timmerman JC, Widenhoefer RA. Kinetics and Mechanism of the Gold-Catalyzed Hydroamination of 1,1-Dimethylallene with N-Methylaniline. Chemistry 2021; 27:10377-10386. [PMID: 33951230 DOI: 10.1002/chem.202100741] [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: 02/28/2021] [Indexed: 12/17/2022]
Abstract
The mechanism of the intermolecular hydroamination of 3-methylbuta-1,2-diene (1) with N-methylaniline (2) catalyzed by (IPr)AuOTf has been studied by employing a combination of kinetic analysis, deuterium labelling studies, and in situ spectral analysis of catalytically active mixtures. The results of these and additional experiments are consistent with a mechanism for hydroamination involving reversible, endergonic displacement of N-methylaniline from [(IPr)Au(NHMePh)]+ (4) by allene to form the cationic gold π-C1,C2-allene complex [(IPr)Au(η2 -H2 C=C=CMe2 )]+ (I), which is in rapid, endergonic equilibrium with the regioisomeric π-C2,C3-allene complex [(IPr)Au(η2 -Me2 C=C=CH2 )]+ (I'). Rapid and reversible outer-sphere addition of 2 to the terminal allene carbon atom of I' to form gold vinyl complex (IPr)Au[C(=CH2 )CMe2 NMePh] (II) is superimposed on the slower addition of 2 to the terminal allene carbon atom of I to form gold vinyl complex (IPr)Au[C(=CMe2 )CH2 NMePh] (III). Selective protodeauration of III releases N-methyl-N-(3-methylbut-2-en-1-yl)aniline (3 a) with regeneration of 4. At high conversion, gold vinyl complex II is competitively trapped by an (IPr)Au+ fragment to form the cationic bis(gold) vinyl complex {[(IPr)Au]2 [C(=CH2 )CMe2 NMePh]}+ (6).
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Affiliation(s)
- Robert J Harris
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
| | - Kohki Nakafuku
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
| | - Alethea N Duncan
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
| | - Robert G Carden
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
| | - Jacob C Timmerman
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
| | - Ross A Widenhoefer
- Department of Chemistry, Duke University, French Family Science Center, Durham, NC 27708-0346, USA
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115
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Dhote PS, Halnor SV, Ramana CV. Gold-Catalysed Nitroalkyne Cycloisomerization - Synthetic Utility. CHEM REC 2021; 21:3546-3558. [PMID: 34075681 DOI: 10.1002/tcr.202100111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/09/2021] [Accepted: 05/11/2021] [Indexed: 02/02/2023]
Abstract
The gold-catalysed intramolecular redox cyclization of o-alkynylnitrobenzens documented by Professors Naoki Asao and Yoshinori Yamamoto is an important discovery that has opened two complementary research domains. Advancing this cyclization with other metals as well as developing new methods around the products that result from this reaction is one aspect that has seen growing interest. On the other hand, the idea of generating α-oxo gold carbenes via oxygen transfer to alkynes has established another important aspect in gold-catalysis. In this account, we will be dealing with the first aspect, which revolves around the internal redox cyclization of nitroalkynes (trivially called as nitroalkyne cycloisomerization), focusing mainly on the gold-complexes and the synthetic methods developed around it from our group and from other groups, and also providing the details of similar transformations documented with other metals so that the complementary reactivity/diversity of these transformations could be appreciated.
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Affiliation(s)
- Pawan S Dhote
- Organic Chemistry Division, CSIR- National Chemical Laboratory, Dr.Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Swapnil V Halnor
- Organic Chemistry Division, CSIR- National Chemical Laboratory, Dr.Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Chepuri V Ramana
- Organic Chemistry Division, CSIR- National Chemical Laboratory, Dr.Homi Bhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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116
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Milcendeau P, Zhang Z, Glinsky-Olivier N, van Elslande E, Guinchard X. Au(I)-Catalyzed Pictet-Spengler Reactions All around the Indole Ring. J Org Chem 2021; 86:6406-6422. [PMID: 33887914 DOI: 10.1021/acs.joc.1c00270] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Au(I) complexes catalyze iso-Pictet-Spengler reactions. Ethylamine or methylamine chains were introduced at C2, C4, or the nitrogen atom of the indole ring, and the corresponding substrates were reacted in the presence of aldehydes and catalytic amounts of Au(I) complexes, leading to a variety of polycyclic scaffolds. Selectivity could be achieved in the course of a double iso-Pictet-Spengler reaction involving two successive aldehydes, leading to highly complex molecules.
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Affiliation(s)
- Pierre Milcendeau
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Zhenhao Zhang
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France.,LCM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France
| | - Nicolas Glinsky-Olivier
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Elsa van Elslande
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Xavier Guinchard
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
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117
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Zhang S, Tang A, Xie R, Zhao Z, Yao J, Miao M. Gold Catalysis Enabling Furan-Fused Cyclobutenes as a Platform toward Cross Cycloadditions. Org Lett 2021; 23:3701-3705. [PMID: 33904750 DOI: 10.1021/acs.orglett.1c01079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The inherently strained furan-fused cyclobutenes, in situ generated via cycloisomerizations of allenyl ketones bearing cyclopropyl moiety under gold catalysis, have been utilized as reactive building blocks toward cross cycloadditions. The [4 + 2] and [3 + 2] annulations of these species with benzo[c]isoxazoles and N-iminoquinazolinium ylides furnish various three-dimensional cyclobutane-bridged polyheterocycles in good yields. A wide range of typically electron-deficient 1,3-dienes, heterodienes, and 1,3-dipoles can trap furan-fused cyclobutenes to afford several polycyclic architectures.
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Affiliation(s)
- Shouzhi Zhang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Aijie Tang
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Ruyu Xie
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Zhiqiang Zhao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
| | - Jinzhong Yao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, People's Republic of China
| | - Maozhong Miao
- Department of Chemistry, Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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118
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6-Enynes with Gold(I)-Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021; 60:9339-9344. [PMID: 33576560 PMCID: PMC8251978 DOI: 10.1002/anie.202017035] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 12/16/2022]
Abstract
Chiral gold(I)-cavitand complexes have been developed for the enantioselective alkoxycyclization of 1,6-enynes. This enantioselective cyclization has been applied for the first total synthesis of carbazole alkaloid (+)-mafaicheenamine C and its enantiomer, establishing its configuration as R. The cavity effect was also evaluated in the cycloisomerization of dienynes. A combination of experiments and theoretical studies demonstrates that the cavity of the gold(I) complexes forces the enynes to adopt constrained conformations, which results in the high observed regio- and stereoselectivities.
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Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
- Departament de Química Analítica i Química OrgànicaUniversitat Rovira i VirgiliC/ Marcel⋅lí Domingo s/n43007TarragonaSpain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and TechnologyAv. Països Catalans 1643007TarragonaSpain
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119
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Martín‐Torres I, Ogalla G, Yang J, Rinaldi A, Echavarren AM. Enantioselective Alkoxycyclization of 1,6‐Enynes with Gold(I)‐Cavitands: Total Synthesis of Mafaicheenamine C. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Inmaculada Martín‐Torres
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Gala Ogalla
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili C/ Marcel⋅lí Domingo s/n 43007 Tarragona Spain
| | - Jin‐Ming Yang
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonia Rinaldi
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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120
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Makoś MZ, Freindorf M, Tao Y, Kraka E. Theoretical Insights into [NHC]Au(I) Catalyzed Hydroalkoxylation of Allenes: A Unified Reaction Valley Approach Study. J Org Chem 2021; 86:5714-5726. [PMID: 33780251 DOI: 10.1021/acs.joc.1c00208] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydroxylation is an effective approach for the synthesis of carbon-oxygen bonds and allylic ethers. The [NHC]Au(I) catalyzed intermolecular hydroalkoxylation of allene was studied at the DFT and Coupled Cluster level of theory. Using the Unified Reaction Valley Approach (URVA), we carry out a comprehensive mechanistic analysis of [NHC]Au(I)-catalyzed and noncatalyzed reactions. The URVA study of several possible reaction pathways reveal that the [NHC]Au(I) catalyst enables the hydroalkoxylation reaction to occur via a two step mechanism based upon the Au ability to switch between π- and σ-complexation. The first step of the mechanism involves the formation of a CO bond after the transition state with no energy penalty. Following the CO bond breakage, the OH bond breaks and CH bond forms during the second step of the mechanism, as the catalyst transforms into the more stable π-Au complex. The URVA results were complemented with local vibrational mode analysis to provide measures of intrinsic bond strength for Au(I)-allene interactions of all stationary points, and NBO analysis was applied in order to observe charge transfer events along the reaction pathway. Overall, the π-Au C═C interactions of the products are stronger than those of the reactants adding to their exothermicity. Our work on the hydroxylation of allene provides new insights for the design of effective reaction pathways to produce allylic ethers and also unravels new strategies to form C-O bonds by activation of C═C bonds.
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Affiliation(s)
- Małgorzata Z Makoś
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, United States
| | - Marek Freindorf
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, United States
| | - Yunwen Tao
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, United States
| | - Elfi Kraka
- Computational and Theoretical Chemistry Group (CATCO), Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, Texas 75275-0314, United States
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121
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Milcendeau P, Gandon V, Guinchard X. Gold‐Catalyzed Carboamination of Allenes by Tertiary Amines Proceeding with Benzylic Group Migration. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Pierre Milcendeau
- Université Paris-Saclay, CNRS Institut de Chimie des Substances Naturelles, UPR 2301 91198 Gif-sur-Yvette France
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182 Université Paris-Saclay Bâtiment 420 91405 Orsay cedex France
- Laboratoire de Chimie Moléculaire (LCM) CNRS UMR 9168 Ecole Polytechnique Institut Polytechnique de Paris route de Saclay 91128 Palaiseau cedex France
| | - Xavier Guinchard
- Université Paris-Saclay, CNRS Institut de Chimie des Substances Naturelles, UPR 2301 91198 Gif-sur-Yvette France
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122
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Pedrazzani R, An J, Monari M, Bandini M. New Chiral BINOL‐Based Phosphates for Enantioselective [Au(I)]‐Catalyzed Dearomatization of β‐Naphthols with Allenamides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100166] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Riccardo Pedrazzani
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Juzeng An
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Magda Monari
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Marco Bandini
- Dipartimento di Chimica “Giacomo Ciamician” Alma Mater Studiorum – Università di Bologna Via Selmi 2 40126 Bologna Italy
- Consorzio C.I.N.M.P.I.S. Via Selmi 2 40126 Bologna Italy
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123
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Qi LJ, Shi CY, Chen PF, Li L, Fang G, Qian PC, Deng C, Zhou JM, Ye LW. Gold-Catalyzed 1,1-Carboalkoxylation of Oxetane-Ynamides via Exocyclic Metal Carbenes: Divergent and Atom-Economical Synthesis of Tricyclic N-Heterocycles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00461] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lin-Jun Qi
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Chong-Yang Shi
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Peng-Fei Chen
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long Li
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Gang Fang
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Peng-Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Chao Deng
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Jin-Mei Zhou
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Long-Wu Ye
- Key Laboratory for Chemical Biology of Fujian Province, State Key Laboratory of Physical Chemistry of Solid Surfaces, 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
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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124
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Jiang JJ, Wong MK. Recent Advances in the Development of Chiral Gold Complexes for Catalytic Asymmetric Catalysis. Chem Asian J 2021; 16:364-377. [PMID: 33386691 DOI: 10.1002/asia.202001375] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/29/2020] [Indexed: 12/12/2022]
Abstract
Asymmetric gold catalysis has been rapidly developed in the past ten years. Breakthroughs have been made by rational design and meticulous selection of chiral ligands. This review summarizes newly developed gold-catalyzed enantioselective organic transformations and recent progress in ligand design (since 2016), organized according to different types of chiral ligands, including bisphosphine ligands, monophosphine ligands, phosphite-derived ligands, and N-heterocyclic carbene ligands for asymmetric gold(I) catalysis as well as heterocyclic carbene ligands and oxazoline ligands for asymmetric gold(III) catalysis.
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Affiliation(s)
- Jia-Jun Jiang
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Man-Kin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
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125
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Chen C, Cheng W, Wang J, Chao T, Cheng M, Liu R. Gold‐Catalyzed [3+2]‐Annulations of α‐Aryl Diazoketones with the Tetrasubstituted Alkenes of Cyclopentadienes: High Stereoselectivity and Enantioselectivity. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012611] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Wei‐Min Cheng
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Jian‐Kai Wang
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Tzu‐Hsuan Chao
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Mu‐Jeng Cheng
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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126
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Rinaldi A, Langé V, Scarpi D, Occhiato EG. Synthesis of (±)‐
epi
‐Jungianol by the Gold(I)‐Catalyzed Propargyl Claisen Rearrangement/Hydroarylation Cascade Reaction of Propargyl Vinyl Ethers. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Antonia Rinaldi
- Dipartimento di Chimica “U. Schiff” Università degli Studi di Firenze Via della Lastruccia 13 50019 Sesto Fiorentino (FI) Italy
| | - Vittoria Langé
- Dipartimento di Chimica “U. Schiff” Università degli Studi di Firenze Via della Lastruccia 13 50019 Sesto Fiorentino (FI) Italy
| | - Dina Scarpi
- Dipartimento di Chimica “U. Schiff” Università degli Studi di Firenze Via della Lastruccia 13 50019 Sesto Fiorentino (FI) Italy
| | - Ernesto G. Occhiato
- Dipartimento di Chimica “U. Schiff” Università degli Studi di Firenze Via della Lastruccia 13 50019 Sesto Fiorentino (FI) Italy
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127
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Reiersølmoen AC, Solvi TN, Fiksdahl A. Au(III) complexes with tetradentate-cyclam-based ligands. Beilstein J Org Chem 2021; 17:186-192. [PMID: 33564328 PMCID: PMC7849238 DOI: 10.3762/bjoc.17.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/23/2020] [Indexed: 12/26/2022] Open
Abstract
Chiral cyclam (1,4,8,11-tetraazacyclotetradecane) derivatives were synthesized stepwise from chiral mono-Boc-1,2-diamines and (dialkyl)malonyl dichloride via open diamide-bis(N-Boc-amino) intermediates (65-91%). Deprotection and ring closure with a second malonyl unit afforded the cyclam tetraamide precursors (80-95%). The new protocol allowed the preparation of the target cyclam derivatives (53-59%) by a final optimized hydride reduction. Both the open tetraamine intermediates and the cyclam derivatives successfully coordinated with AuCl3 to give moderate to excellent yields (50-96%) of the corresponding novel tetra-coordinated N,N,N,N-Au(III) complexes with alternating five- and six-membered chelate rings. The testing of the catalytic ability of the cyclam-based N,N,N,N-Au(III) complexes demonstrated high catalytic activity of some complexes in selected test reactions (full conversion in 1-24 h, 62-97% product yields).
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Affiliation(s)
- Ann Christin Reiersølmoen
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway
| | - Thomas N Solvi
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway
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128
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Foster D, Gao P, Zhang Z, Sipos G, Sobolev AN, Nealon G, Falivene L, Cavallo L, Dorta R. Design, scope and mechanism of highly active and selective chiral NHC-iridium catalysts for the intramolecular hydroamination of a variety of unactivated aminoalkenes. Chem Sci 2021; 12:3751-3767. [PMID: 34163649 PMCID: PMC8179506 DOI: 10.1039/d0sc05884j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/04/2021] [Indexed: 01/28/2023] Open
Abstract
Chiral, cationic NHC-iridium complexes are introduced as catalysts for the intramolecular hydroamination reaction of unactivated aminoalkenes. The catalysts show high activity in the construction of a range of 5- and 6-membered N-heterocycles, which are accessed in excellent optical purity, with various functional groups being tolerated with this system. A major deactivation pathway is presented and eliminated by using alternative reaction conditions. A detailed experimental and computational study on the reaction mechanism is performed providing valuable insights into the mode of action of the catalytic system and pointing to future modifications to be made for this catalytic platform.
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Affiliation(s)
- Daven Foster
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Pengchao Gao
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Ziyun Zhang
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Gellért Sipos
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
| | - Alexandre N Sobolev
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia 35 Stirling Highway 6009 Perth WA Australia
| | - Gareth Nealon
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia 35 Stirling Highway 6009 Perth WA Australia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Chemical and Life Sciences and Engineering, Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Reto Dorta
- Department of Chemistry, School of Molecular Sciences, University of Western Australia M310, 35 Stirling Highway 6009 Perth WA Australia
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129
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Wu J, Noonikara-Poyil A, Muñoz-Castro A, Dias HVR. Gold(I) ethylene complexes supported by electron-rich scorpionates. Chem Commun (Camb) 2021; 57:978-981. [PMID: 33433552 DOI: 10.1039/d0cc07717h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ethylene complexes of gold(i) have been stabilized by electron-rich, κ2-bound tris(pyrazolyl)borate ligands. Large up-field shifts of olefinic carbon NMR resonances and relatively long C[double bond, length as m-dash]C distances of gold bound ethylene are indicative of significant Au(i) → ethylene π-backbonding relative to the analog supported by a weakly donating ligand, consistent with the computational data.
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Affiliation(s)
- Jiang Wu
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - Anurag Noonikara-Poyil
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares, Facultad de Ingeniería, Universidad Autonoma de Chile, El Llano Subercaseaux 2801, Santiago, Chile
| | - H V Rasika Dias
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019, USA.
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130
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Ito T, Harada S, Homma H, Takenaka H, Hirose S, Nemoto T. Asymmetric Intramolecular Dearomatization of Nonactivated Arenes with Ynamides for Rapid Assembly of Fused Ring System under Silver Catalysis. J Am Chem Soc 2021; 143:604-611. [PMID: 33382259 DOI: 10.1021/jacs.0c10682] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Arene dearomatization is a straightforward method for converting an aromatic feedstock into functionalized carbocycles. Enantioselective dearomatizations of chemically inert arenes, however, are quite limited and underexplored relative to those of phenols and indoles. We developed a method for diazo-free generation of silver-carbene species from an ynamide and applied it to the dearomatization of nonactivated arenes. Transiently generated norcaradiene could be trapped by intermolecular [4 + 2] cycloaddition, synthesizing polycycles with five consecutive stereogenic centers. This protocol constitutes the first highly enantioselective reaction based on the diazo-free generation of silver-carbene species. Mechanistic investigations revealed a dearomatization followed by two different classes of pericyclic reactions, as well as the origin of the chemo- and enantioselectivity.
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Affiliation(s)
- Tsubasa Ito
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shingo Harada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Haruka Homma
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Hiroki Takenaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Shumpei Hirose
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Tetsuhiro Nemoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8675, Japan.,Molecular Chirality Research Center, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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131
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Nanko M, Inaba Y, Sekine K, Mikami K. Mono‐Gold(I)‐Catalyzed Enantioselective Intermolecular Reaction of Ynones with Styrenes: Tandem
Diels–Alder
and Ene Sequence. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Masaki Nanko
- Department of Applied Chemistry, Graduate School of Science and Engineering Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
| | - Yuya Inaba
- Department of Applied Chemistry, Graduate School of Science and Engineering Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
| | - Keisuke Sekine
- Department of Applied Chemistry, Graduate School of Science and Engineering Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
| | - Koichi Mikami
- Department of Applied Chemistry, Graduate School of Science and Engineering Tokyo Institute of Technology 2-12-1 Ookayama Meguro Tokyo 152-8552 Japan
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132
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Chen C, Cheng W, Wang J, Chao T, Cheng M, Liu R. Gold‐Catalyzed [3+2]‐Annulations of α‐Aryl Diazoketones with the Tetrasubstituted Alkenes of Cyclopentadienes: High Stereoselectivity and Enantioselectivity. Angew Chem Int Ed Engl 2021; 60:4479-4484. [DOI: 10.1002/anie.202012611] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/18/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Ching‐Nung Chen
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Wei‐Min Cheng
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Jian‐Kai Wang
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
| | - Tzu‐Hsuan Chao
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Mu‐Jeng Cheng
- Department of Chemistry National Cheng Kung University East District Tainan City Taiwan, ROC
| | - Rai‐Shung Liu
- Frontier Research Center for Matter Science and Technology and Department of Chemistry National Tsing-Hua University Hsinchu Taiwan, ROC
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133
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Cao Z, Scalabre A, Nlate S, Buffière S, Oda R, Pouget E, Bibal B. Silica-Supported Phosphine-Gold Complexes as an Efficient Catalytic System for a Dearomative Spirocyclization. Chemistry 2021; 27:427-433. [PMID: 33064331 DOI: 10.1002/chem.202004251] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 10/08/2020] [Indexed: 11/07/2022]
Abstract
The combination of metal catalyst and inorganic silica frameworks provides a greener approach to recyclable catalysis. In this study, three phosphine-gold chloride complexes have been successfully covalently grafted onto chiral silica nanohelices. The resulting 3D ensembles showed chiroptical properties that allowed the monitoring of the supported ligands. The heterogeneous gold chloride catalysts in cooperation with silver triflate exhibited high reactivity in various reactions, especially in the spirocyclization of aryl alkynoate esters, for which a catalytic loading of 0.05 mol % could be employed. The heterogeneous catalysts could be easily recovered and recycled seven or eight times without any loss of efficiency. By adding more silver triflate, 25 cycles with full conversion were achieved owing to a complex catalytic system based on silica and metallic species.
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Affiliation(s)
- Zhen Cao
- Institut des Sciences Moléculaires, UMR CNRS 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France
| | - Antoine Scalabre
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Sylvain Nlate
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Sonia Buffière
- Institut de Chimie de la Matière Condensée de Bordeaux, UMR CNRS 5026, Université de Bordeaux, 87 avenue du docteur Schweitzer, 33608, Pessac, France
| | - Reiko Oda
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Emilie Pouget
- Chimie et Biologie des Membranes et des Nanoobjets, UMR CNRS 5248, Université de Bordeaux, 2 rue Roger Escarpit, 33607, Pessac, France
| | - Brigitte Bibal
- Institut des Sciences Moléculaires, UMR CNRS 5255, Université de Bordeaux, 351 cours de la Libération, 33405, Talence, France
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134
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Nemoto T, Harada S, Ikeda M, Nakayama H, Kanda A. Synthetic Studies on Didymeline Using Spirocyclization of Phenols with Diazo Functionality. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)65] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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135
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Ueda H, Yamamoto R, Yamaguchi M, Tokuyama H. Synthesis of substituted anilines via a gold-catalyzed three-component reaction. Org Biomol Chem 2021; 19:765-769. [DOI: 10.1039/d0ob02018d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A three-component reaction for the synthesis of substituted anilines by a gold(i)-catalyzed domino reaction was developed.
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Affiliation(s)
- Hirofumi Ueda
- Graduate School of Pharmaceutical Sciences
- Tohoku University Aoba 6-3
- Sendai
- Japan
| | - Ryota Yamamoto
- Graduate School of Pharmaceutical Sciences
- Tohoku University Aoba 6-3
- Sendai
- Japan
| | - Minami Yamaguchi
- Graduate School of Pharmaceutical Sciences
- Tohoku University Aoba 6-3
- Sendai
- Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical Sciences
- Tohoku University Aoba 6-3
- Sendai
- Japan
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136
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Abstract
This review summarizes the recent achievements of dinuclear gold-catalyzed redox coupling, asymmetric catalysis and photocatalysis. The dinuclear gold catalysts show a better catalytic performance than the mononuclear gold catalysts in certain cases.
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Affiliation(s)
- Wenliang Wang
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Cheng-Long Ji
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Kai Liu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Chuan-Gang Zhao
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
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137
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Zhao Q, Peng C, Wang YT, Zhan G, Han B. Recent progress on the construction of axial chirality through transition-metal-catalyzed benzannulation. Org Chem Front 2021. [DOI: 10.1039/d1qo00307k] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Useful chiral biaryls have been constructed through rhodium and gold complex-catalyzed asymmetric benzannulation strategies.
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Affiliation(s)
- Qian Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources
- Hospital of Chengdu University of Traditional Chinese Medicine
- School of Basic Medical Sciences
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources
- Hospital of Chengdu University of Traditional Chinese Medicine
- School of Basic Medical Sciences
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Yu-Ting Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources
- Hospital of Chengdu University of Traditional Chinese Medicine
- School of Basic Medical Sciences
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Gu Zhan
- State Key Laboratory of Southwestern Chinese Medicine Resources
- Hospital of Chengdu University of Traditional Chinese Medicine
- School of Basic Medical Sciences
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources
- Hospital of Chengdu University of Traditional Chinese Medicine
- School of Basic Medical Sciences
- Chengdu University of Traditional Chinese Medicine
- Chengdu 611137
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138
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Redero P, Hartung T, Zhang J, Nicholls LDM, Zichen G, Simon M, Golz C, Alcarazo M. Enantioselective Synthesis of 1-Aryl Benzo[5]helicenes Using BINOL-Derived Cationic Phosphonites as Ancillary Ligands. Angew Chem Int Ed Engl 2020; 59:23527-23531. [PMID: 32896999 PMCID: PMC7756570 DOI: 10.1002/anie.202010021] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/05/2020] [Indexed: 11/21/2022]
Abstract
The synthesis of unprecedented BINOL-derived cationic phosphonites is described. Through the use of these phosphanes as ancillary ligands in AuI catalysis, a highly regio- and enantioselective assembly of appropriately designed alkynes into 1-(aryl)benzo[5]carbohelicenes is achieved. The modular synthesis of these ligands and the enhanced reactivity that they impart to AuI -centers after coordination have been found to be the key features that allow an optimization of the reaction conditions until the desired benzo[5]helicenes are obtained with high yield and enantioselectivity.
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Affiliation(s)
- Pablo Redero
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Thierry Hartung
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Jianwei Zhang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Leo D. M. Nicholls
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Guo Zichen
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Martin Simon
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Christopher Golz
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammannstr. 237077-GöttingenGermany
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139
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Li J, Xu Y, Hu X, Zhu S, Liu L. Easy Access to 2,4-Disubstituted Cyclopentenones by a Gold(III)-Catalyzed A3-Coupling/Cyclization Cascade. Org Lett 2020; 22:9478-9483. [PMID: 33237782 DOI: 10.1021/acs.orglett.0c03451] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient and convenient synthesis of 2,4-disubstituted cyclopentenones has been achieved through a Au(III)-catalyzed isomerization-A3-coupling/cyclization cascade. A possible mechanism involving an initial Au(III)-catalyzed isomerization, A3-type coupling, and cyclization via an enol intermediate is postulated.
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Affiliation(s)
- Jian Li
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Yue Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Xiwen Hu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Shangrong Zhu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
| | - Li Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Pharmacy, Changzhou University, Changzhou, 213164, China
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140
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Zanella G, Petrović M, Scarpi D, Occhiato EG, Gómez-Bengoa E. Pentannulation of N-heterocycles by a tandem gold-catalyzed [3,3]-rearrangement/Nazarov reaction of propargyl ester derivatives: a computational study on the crucial role of the nitrogen atom. Beilstein J Org Chem 2020; 16:3059-3068. [PMID: 33414853 PMCID: PMC7753109 DOI: 10.3762/bjoc.16.255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 11/30/2020] [Indexed: 12/24/2022] Open
Abstract
The tandem gold(I)-catalyzed rearrangement/Nazarov reaction of enynyl acetates in which the double bond is embedded in a piperidine ring was computationally and experimentally studied. The theoretical calculations predict that the position of the propargylic acetate substituent has a great impact on the reactivity. In contrast to our previous successful cyclization of the 2-substituted substrates, where the nitrogen favors the formation of the cyclized final product, the substitution at position 3 was computed to have a deleterious effect on the electronic properties of the molecules, increasing the activation barriers of the Nazarov reaction. The sluggish reactivity of 3-substituted piperidines predicted by the calculations was further confirmed by the results obtained with some designed substrates.
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Affiliation(s)
- Giovanna Zanella
- Departamento de Química Orgánica I, University of the Basque Country, UPV-EHU, Manuel Lardizabal 3, 20018 Donostia, San Sebastián, Basque Country, Spain
| | - Martina Petrović
- Dipartimento di Chimica “U. Schiff”, Università degli Studi di Firenze, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Dina Scarpi
- Dipartimento di Chimica “U. Schiff”, Università degli Studi di Firenze, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Ernesto G Occhiato
- Dipartimento di Chimica “U. Schiff”, Università degli Studi di Firenze, Via della Lastruccia 13, 50019 Sesto Fiorentino, Florence, Italy
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, University of the Basque Country, UPV-EHU, Manuel Lardizabal 3, 20018 Donostia, San Sebastián, Basque Country, Spain
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141
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Gicquiaud J, Abadie B, Dhara K, Berlande M, Hermange P, Sotiropoulos JM, Toullec PY. Brønsted Acid-Catalyzed Enantioselective Cycloisomerization of Arylalkynes. Chemistry 2020; 26:16266-16271. [PMID: 32975325 DOI: 10.1002/chem.202003783] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/21/2020] [Indexed: 01/09/2023]
Abstract
The first example of an enantioselective carbocyclization of an alkyne-containing substrate catalyzed by chiral Brønsted acids was achieved. The use of the 2-hydroxynaphthyl substituent on the alkyne as a directing group constituted the key parameter enabling both efficient regioselective protonation of the carbon-carbon triple bond and chiral induction. The key cationic intermediate could be depicted either as a cationic vinylidene ortho-quinone methide or a stabilized vinyl cation. Atropoisomeric phenanthrenes derivatives were produced in high yields and good enantioselectivities under mild, metal-free reaction conditions in the presence of chiral N-triflylphosphoramide catalysts. The carbenic nature of the cationic intermediate was also exploited to describe an example of alkyne/alkane cycloisomerization.
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Affiliation(s)
- Julien Gicquiaud
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
| | - Baptiste Abadie
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
| | - Kalyan Dhara
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
| | - Murielle Berlande
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
| | - Philippe Hermange
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
| | - Jean-Marc Sotiropoulos
- CNRS/UNIV PAU & PAYS ADOUR, Institut des Sciences Analytiques et de Physico-Chimie pour, l'Environnement et les Matériaux (IPREM, UMR 5254), Hélioparc, 2 avenue du Président Angot, 64053, Pau Cedex 09, France
| | - Patrick Y Toullec
- CNRS, Bordeaux INP, ISM, UMR 5255, University of Bordeaux, 33400, Talence, France
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142
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Kim H, Jang J, Shin S. Gold-Catalyzed Asymmetric Thioallylation of Propiolates via Charge-Induced Thio-Claisen Rearrangement. J Am Chem Soc 2020; 142:20788-20795. [PMID: 33206513 DOI: 10.1021/jacs.0c09783] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A gold(I)-catalyzed enantioselective thioallylation of propiolates with allyl sulfides is described. The key mechanistic element is a sulfonium-induced Claisen rearrangement which helps minimize the allyl dissociation and render higher enantioselectivity. This protocol features remarkable scope of the allyl moiety, allowing enantiocontrolled synthesis of all-carbon quaternary centers, and exhibits exceptional functional group compatibility with many Lewis bases and π-bonds. This intermolecular variant of Claisen rearrangement forges both C-S and C-C bonds concomitantly, providing efficient access to interesting optically active organosulfur compounds which can be transformed further through the vinyl sulfide as a functional handle. The rate of the reaction was zeroth order with respect to allyl sulfides, which suggested a reversible inhibition, providing a resting state for the catalyst. The Hammett plot displayed a correlation with σp values, suggesting a turnover-limiting sigmatropic rearrangement where decreased electron-density on sulfur accelerated the rearrangement.
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Affiliation(s)
- Hanbyul Kim
- Department of Chemistry, Research Institute of Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea
| | - Jiwon Jang
- Department of Chemistry, Research Institute of Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea
| | - Seunghoon Shin
- Department of Chemistry, Research Institute of Natural Sciences and Center for New Directions in Organic Synthesis (CNOS), Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea
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143
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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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144
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Luo J, Chen GS, Chen SJ, Yu JS, Li ZD, Liu YL. Exploiting Remarkable Reactivities of Ynamides: Opportunities in Designing Catalytic Enantioselective Reactions. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04180] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jian Luo
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Guo-Shu Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Shu-Jie Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Zhao-Dong Li
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University Wushan Street five road No. 483, Guangzhou 510642, China
| | - Yun-Lin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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145
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Abstract
Three- and four-membered rings, widespread motifs in nature and medicinal chemistry, have fascinated chemists ever since their discovery. However, due to energetic considerations, small rings are often difficult to assemble. In this regard, homogeneous gold catalysis has emerged as a powerful tool to construct these highly strained carbocycles. This review aims to provide a comprehensive summary of all the major advances and discoveries made in the gold-catalyzed synthesis of cyclopropanes, cyclopropenes, cyclobutanes, cyclobutenes, and their corresponding heterocyclic or heterosubstituted analogs.
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Affiliation(s)
- Mauro Mato
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Allegra Franchino
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Cristina Garcı A-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Analı́tica i Quı́mica Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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146
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Redero P, Hartung T, Zhang J, Nicholls LDM, Zichen G, Simon M, Golz C, Alcarazo M. Enantioselective Synthesis of 1‐Aryl Benzo[5]helicenes Using BINOL‐Derived Cationic Phosphonites as Ancillary Ligands. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010021] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Pablo Redero
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Thierry Hartung
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Jianwei Zhang
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Leo D. M. Nicholls
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Guo Zichen
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Martin Simon
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Christopher Golz
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
| | - Manuel Alcarazo
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstr. 2 37077- Göttingen Germany
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147
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Zhu X, Xu G, Chamoreau L, Zhang Y, Mouriès‐Mansuy V, Fensterbank L, Bistri‐Aslanoff O, Roland S, Sollogoub M. Permethylated NHC‐Capped α‐ and β‐Cyclodextrins (ICyD
Me
) Regioselective and Enantioselective Gold‐Catalysis in Pure Water. Chemistry 2020; 26:15901-15909. [DOI: 10.1002/chem.202001990] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/29/2020] [Indexed: 01/21/2023]
Affiliation(s)
- Xiaolei Zhu
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Guangcan Xu
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Lise‐Marie Chamoreau
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Yongmin Zhang
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Virginie Mouriès‐Mansuy
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Louis Fensterbank
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Olivia Bistri‐Aslanoff
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Sylvain Roland
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
| | - Matthieu Sollogoub
- Sorbonne Université CNRS Institut Parisien de Chimie Moléculaire (IPCM) UMR 8232 4, place Jussieu 75005 Paris France
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148
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Li Y, Higaki T, Du X, Jin R. Chirality and Surface Bonding Correlation in Atomically Precise Metal Nanoclusters. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905488. [PMID: 32181554 DOI: 10.1002/adma.201905488] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/16/2019] [Indexed: 05/24/2023]
Abstract
Chirality is ubiquitous in nature and occurs at all length scales. The development of applications for chiral nanostructures is rising rapidly. With the recent achievements of atomically precise nanochemistry, total structures of ligand-protected Au and other metal nanoclusters (NCs) are successfully obtained, and the origins of chirality are discovered to be associated with different parts of the cluster, including the surface ligands (e.g., swirl patterns), the organic-inorganic interface (e.g., helical stripes), and the kernel. Herein, a unified picture of metal-ligand surface bonding-induced chirality for the nanoclusters is proposed. The different bonding modes of M-X (where M = metal and X = the binding atom of ligand) lead to different surface structures on nanoclusters, which in turn give rise to various characteristic features of chirality. A comparison of Au-thiolate NCs with Au-phosphine ones further reveals the important roles of surface bonding. Compared to the Au-thiolate NCs, the Ag/Cu/Cd-thiolate systems exhibit different coordination modes between the metal and the thiolate. Other than thiolate and phosphine ligands, alkynyls are also briefly discussed. Several methods of obtaining chiroptically active nanoclusters are introduced, such as enantioseparation by high-performance liquid chromatography and enantioselective synthesis. Future perspectives on chiral NCs are also proposed.
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Affiliation(s)
- Yingwei Li
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Tatsuya Higaki
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Xiangsha Du
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Rongchao Jin
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
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149
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Ghanbari M, Ahmadi S. From Furan–Yne Systems to para-Benzoquinone Derivatives: Gold-Catalyzed Cyclization and Oxidation, and Further Reduction by Sodium Dithionate. SYNTHESIS-STUTTGART 2020. [DOI: 10.1055/s-0040-1707371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractA series of furan–yne systems were transformed into the corresponding para-benzoquinone derivatives by gold(ΙΙΙ) catalyst. The two-step procedure consisted of a phenol synthesis and subsequent oxidation with iodobenzene diacetate. The reactions can be carried out in a one-pot procedure with the same precatalyst. The para-benzoquinone could simply be converted into the corresponding hydroquinones by reduction with sodium dithionate. This protocol features high efficiency, mild conditions, and wide substrate scopes.
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Affiliation(s)
- Mohammad Ghanbari
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan
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150
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Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
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