1
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Melder JJ, Witzel S, Terres S, de Bary P, Krohne L, Rudolph M, K Hashmi AS. Synthesis of 2,3-Dihydrobenzofurans via a Photochemical Gold-Mediated Atom Transfer Radical Addition Reaction. Org Lett 2024; 26:5664-5669. [PMID: 38941620 DOI: 10.1021/acs.orglett.4c01626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
A light-mediated cyclization reaction initiated by an atom transfer radical addition (ATRA) of haloalkanes onto alkenes was exploited for the synthesis of functionalized dihydrobenzofurans. Initial investigation indicated that the dimeric gold catalyst [Au2(μ-dppm)2Cl2] can effectively be used for intermolecular ATRA reactions. Further, the reactivity was applied in a cascade-like cyclization for the preparation of dihydrobenzofuran derivatives. With the presented photochemical approach, the functionalization can be achieved directly from ortho-allylphenols in yields of up to 96% under mild conditions.
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Affiliation(s)
- Julian J Melder
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Sina Witzel
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Sophia Terres
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Philippe de Bary
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lukas Krohne
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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2
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Melder JJ, Heldner ML, Kugler R, Ziegenhagen LA, Rominger F, Rudolph M, Hashmi ASK. Easy Access to Functionalized Indolines and Tetrahydroquinolines via a Photochemical Cascade Cyclization Reaction. J Am Chem Soc 2024; 146:14521-14527. [PMID: 38743878 DOI: 10.1021/jacs.4c00962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Herein, the development of a light-mediated synthesis of functionalized indolines and tetrahydroquinolines is reported. These structural motifs are considered as highly valuable targets, attributed to their widespread occurrence in pharmaceuticals and natural products. The gold-mediated approach offers a direct route to functionalized indolines in yields of up to 81% under mild photochemical conditions. Thereby, easily accessible Boc-protected N-aryl-allylamine and homoallylamine derivatives were reacted with sp3-hybridized haloalkanes in an intermolecular cascade cyclization reaction. A broad scope of substrates, including a variety of different substituents on the aromatic backbone as well as various haloalkanes, could be utilized. Indoline derivatives, which are functionalized in position 2, are also accessible by applying ortho-allylic anilines. Moreover, the synthetic appeal was demonstrated for a total synthesis of the anti-inflammatory agent AN669 in three reaction steps in an overall yield of 64%.
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Affiliation(s)
- Julian J Melder
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Maxi L Heldner
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Robin Kugler
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Levi A Ziegenhagen
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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3
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Wang K, Bao X. Computational Insights into the Photoinduced Dimeric Gold-Catalyzed Divergent Dechloroalkylation of gem-Dichloroalkanes with Alkenes. J Am Chem Soc 2024; 146:7679-7689. [PMID: 38448393 DOI: 10.1021/jacs.3c14352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The employment of dinuclear Au(I) catalysts in photomediated modern organic transformations has attracted significant attention over the past decade, which commonly demonstrates unique catalytic performance compared with the corresponding mononuclear gold complexes. Nevertheless, detailed mechanisms of dinuclear gold catalysis remain ambiguous, and further mechanistic understanding is highly desirable. Herein, computational studies were carried out to gain mechanistic insights into the photoinduced dinuclear gold-catalyzed divergent dechloroalkylation of gem-dichloroalkanes. Computational results suggest that a proton transfer from the additive, Hantzsch ester (HE), to the base, guanidine, could lead to an ionic pair complex, which is ready to undergo excitation under blue light irradiation to result in the corresponding triplet excited state. Then, the excited complex might undergo oxidative quenching with the dinuclear gold photocatalyst [AuI-AuI]2+, via a single-electron-transfer (SET) step to afford an unusual [Au1/2-Au1/2]+ dinuclear species. The corresponding mononuclear gold catalyst, [AuI]+, however, is not ready to enable the analogous step to give a [Au0] species, which might account for the unique characteristics of dinuclear gold catalysis. Subsequently, the formed [Au1/2-Au1/2]+ intermediate could trigger a Cl-atom transfer from dichloromethane in an inner-sphere manner to furnish a critical chloromethyl radical. Next, the resulting chloromethyl radical could attack the alkenyl moiety of substrates to generate the corresponding alkyl radicals. Then, three possible mechanistic pathways were explored to rationalize the substrate-dependent divergent transformations in this protocol. The main factors responsible for the diversified transformations were discussed.
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Affiliation(s)
- Kaifeng Wang
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
| | - Xiaoguang Bao
- Innovation Center for Chemical Sciences, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou, Jiangsu 215123, China
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4
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Muratov K, Zaripov E, Berezovski MV, Gagosz F. DFT-Enabled Development of Hemilabile (P ∧N) Ligands for Gold(I/III) RedOx Catalysis: Application to the Thiotosylation of Aryl Iodides. J Am Chem Soc 2024; 146:3660-3674. [PMID: 38315643 DOI: 10.1021/jacs.3c08943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Ligand-enabled oxidative addition of Csp2-X bonds to Au(I) centers has recently appeared as a valuable strategy for the development of catalytic RedOx processes. Several cross-coupling reactions that were previously considered difficult to achieve were reported lately, thus expanding the synthetic potential of gold(I) complexes beyond the traditional nucleophilic functionalization of π-systems. MeDalPhos has played an important role in this development and, despite several studies on alternative structures, remains, so far, the only general ligand for such process. We report herein the discovery and DFT-enabled structural optimization of a new family of hemilabile (P∧N) ligands that can promote the oxidative addition of aryl iodides to gold(I). These flexible ligands, which possess a common 2-methylamino heteroaromatic N-donor motif, are structurally and electronically tunable, beyond being easily accessible and affordable. The corresponding Au(I) complexes were shown to outperform the reactivity of (MeDalPhos)Au(I) in a series of alkoxy- and amidoarylations of alkenes. Their synthetic potential and comparatively higher reactivity were further highlighted in the thiotosylation of aryl iodides, a challenging unreported C-S cross-coupling reaction that could not be achieved under classical Pd(0/II) catalysis and that allows for general and divergent access to aryl sulfur derivatives.
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Affiliation(s)
- Karim Muratov
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Emil Zaripov
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Maxim V Berezovski
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Fabien Gagosz
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
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5
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Wei RJ, Xie M, Xia RQ, Chen J, Hu HJ, Ning GH, Li D. Gold(I)-Organic Frameworks as Catalysts for Carboxylation of Alkynes with CO 2. J Am Chem Soc 2023; 145:22720-22727. [PMID: 37791919 DOI: 10.1021/jacs.3c08262] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Construction of gold-based metal-organic frameworks (Au-MOFs) would bring the merits of gold chemistry into MOFs. However, it still remains challenging because gold cations are easily reduced to metallic gold under solvothermal conditions. Herein, we present the first example of Au-MOFs prepared from the networking of cyclic trinuclear gold(I) complexes by formal transimination reaction in a rapid (<15 min) and scalable (up to 1 g) fashion under ambient condition. The Au-MOFs feature uniform porosity, high crystallinity, and superior chemical stability toward base (i.e., 20 M NaOH). With open Au(I) sites in the skeleton, the Au-MOFs as heterogeneous catalysts delivered good performance and substrate tolerance for the carboxylation reactions of alkynes with CO2. This work demonstrates a facile approach to reticularly synthesize Au-MOFs by combining the coordination and dynamic covalent chemistry.
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Affiliation(s)
- Rong-Jia Wei
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Mo Xie
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Ri-Qin Xia
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Jun Chen
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Hua-Juan Hu
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Guo-Hong Ning
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
| | - Dan Li
- College of Chemistry and Materials Science, and Guangdong Provincial Key Laboratory of Functional Supramolecular Coordination Materials and Applications, Jinan University, Guangzhou 510632, China
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6
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Juliá F, Constantin T, Leonori D. Applications of Halogen-Atom Transfer (XAT) for the Generation of Carbon Radicals in Synthetic Photochemistry and Photocatalysis. Chem Rev 2021; 122:2292-2352. [PMID: 34882396 DOI: 10.1021/acs.chemrev.1c00558] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The halogen-atom transfer (XAT) is one of the most important and applied processes for the generation of carbon radicals in synthetic chemistry. In this review, we summarize and highlight the most important aspects associated with XAT and the impact it has had on photochemistry and photocatalysis. The organization of the material starts with the analysis of the most important mechanistic aspects and then follows a subdivision based on the nature of the reagents used in the halogen abstraction. This review aims to provide a general overview of the fundamental concepts and main agents involved in XAT processes with the objective of offering a tool to understand and facilitate the development of new synthetic radical strategies.
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Affiliation(s)
- Fabio Juliá
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Timothée Constantin
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Daniele Leonori
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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7
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Witzel S, Hoffmann M, Rudolph M, Rominger F, Dreuw A, Hashmi ASK. A Radical Chain: Mononuclear “Gold Only” Photocatalysis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Marvin Hoffmann
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) Heidelberg University Im Neuenheimer Feld 205A 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Andreas Dreuw
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) Heidelberg University Im Neuenheimer Feld 205A 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
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8
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Zhang XM, Li BS, Wang SH, Zhang K, Zhang FM, Tu YQ. Recent development and applications of semipinacol rearrangement reactions. Chem Sci 2021; 12:9262-9274. [PMID: 34349896 PMCID: PMC8314203 DOI: 10.1039/d1sc02386a] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/04/2021] [Indexed: 11/21/2022] Open
Abstract
As has been well-recognized, semipinacol rearrangement functions as an exceptionally useful methodology in the synthesis of β-functionalized ketones, creation of quaternary carbon centers, and construction of challenging carbocycles. Due to their versatile utilities in organic synthesis, development of novel rearrangement reactions has been a vibrant topic that continues to shape the research field. Recent breakthroughs in novel electrophiles, tandem processes, and enantioselective catalytic transformations further enrich the toolbox of this chemistry and spur the strategic applications of this methodology in natural product synthesis. These achievements will be discussed in this minireview.
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Affiliation(s)
- Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China
| | - Bao-Sheng Li
- School of Chemistry and Chemical Engineering, Chongqing University Chongqing 400030 P. R. China
| | - Shao-Hua Wang
- State Key Laboratory of Applied Organic Chemistry and School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China
| | - Kun Zhang
- School of Biotechnology and Health Sciences, Wuyi University Jiangmen Guangdong 529020 P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and School of Pharmacy, Lanzhou University Lanzhou 730000 P. R. China
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9
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Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - 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, Nanjing 210023, China
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10
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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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11
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Zidan M, McCallum T, Swann R, Barriault L. Formal Bromine Atom Transfer Radical Addition of Nonactivated Bromoalkanes Using Photoredox Gold Catalysis. Org Lett 2020; 22:8401-8406. [DOI: 10.1021/acs.orglett.0c03030] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Montserrat Zidan
- Centre for Catalysis, Research and Innovation, Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa, Ontario K1N 6N5, Canada
| | - Terry McCallum
- Centre for Catalysis, Research and Innovation, Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa, Ontario K1N 6N5, Canada
| | - Rowan Swann
- Centre for Catalysis, Research and Innovation, Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa, Ontario K1N 6N5, Canada
| | - Louis Barriault
- Centre for Catalysis, Research and Innovation, Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa, Ontario K1N 6N5, Canada
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12
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Crespi S, Fagnoni M. Generation of Alkyl Radicals: From the Tyranny of Tin to the Photon Democracy. Chem Rev 2020; 120:9790-9833. [PMID: 32786419 PMCID: PMC8009483 DOI: 10.1021/acs.chemrev.0c00278] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 01/09/2023]
Abstract
Alkyl radicals are key intermediates in organic synthesis. Their classic generation from alkyl halides has a severe drawback due to the employment of toxic tin hydrides to the point that "flight from the tyranny of tin" in radical processes was considered for a long time an unavoidable issue. This review summarizes the main alternative approaches for the generation of unstabilized alkyl radicals, using photons as traceless promoters. The recent development in photochemical and photocatalyzed processes enabled the discovery of a plethora of new alkyl radical precursors, opening the world of radical chemistry to a broader community, thus allowing a new era of photon democracy.
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Affiliation(s)
- Stefano Crespi
- Stratingh
Institute for Chemistry, Center for Systems
Chemistry University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Maurizio Fagnoni
- PhotoGreen
Lab, Department of Chemistry, V. Le Taramelli 10, 27100 Pavia, Italy
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13
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Zheng TL, Zhang Y, Gou AL, Cheng F, Liu SZ, Yu L, Cui MY, Xu XT, Zhang K, Wang SH. Au(I)-Catalyzed Cyclization/Semipinacol Rearrangement Reaction of Allenes to Construct Quaternary Carbon-Containing Scaffolds. Org Lett 2020; 22:7073-7077. [PMID: 32886523 DOI: 10.1021/acs.orglett.0c02262] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The development of methods toward the construction of quaternary carbon centers has been a hot topic in recent years. In this work, an Au(I)-catalyzed intramolecular cyclization/semipinacol rearrangement of allene-containing allylic silyl ether was developed to provide a direct strategy for the construction of multisubstituted cyclohexene-type compounds with a quaternary carbon center in moderate to good yields. In particular, this method provides an alternative synthetic strategy for the construction of a multisubstituted spirocyclo[4.5]decane skeleton and may be applied to the synthesis of related bioactive molecules and their derivatives, thus facilitating the corresponding functional studies.
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Affiliation(s)
- Tian-Lu Zheng
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ye Zhang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - A-Long Gou
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Fu Cheng
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Si-Zhan Liu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Lan Yu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Ming-Yue Cui
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
| | - Xue-Tao Xu
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, P.R. China
| | - Kun Zhang
- School of Biotechnology and Health Science, Wuyi University, Jiangmen 529020, P.R. China
| | - Shao-Hua Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P.R. China
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14
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Natho P, Allen LA, Parsons PJ. Recent advances in the ring expansion of cyclobutanols, oxetanols, and azetidinols. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151695] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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15
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Clément M, Abdellah I, Ray P, Martini C, Coppel Y, Remita H, Lampre I, Huc V. Synthesis and NMR study of trimethylphosphine gold(i)-appended calix[8]arenes as precursors of gold nanoparticles. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01475f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, the synthesis of gold(i)-calix[8]arene complexes from benzyloxycalix[8]arene is reported as well as their radiolytic reduction leading to gold nanoparticles.
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Affiliation(s)
- Marie Clément
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Univ Paris-Sud UMR 8182 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Ibrahim Abdellah
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Univ Paris-Sud UMR 8182 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Priyanka Ray
- Laboratoire de Chimie Physique
- Univ Paris-Sud UMR 8000 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Cyril Martini
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Univ Paris-Sud UMR 8182 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination
- UPR 8241 CNRS
- Université de Toulouse
- 31077 Toulouse Cedex 4
- France
| | - Hynd Remita
- Laboratoire de Chimie Physique
- Univ Paris-Sud UMR 8000 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Isabelle Lampre
- Laboratoire de Chimie Physique
- Univ Paris-Sud UMR 8000 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
| | - Vincent Huc
- Institut de Chimie Moléculaire et des Matériaux d'Orsay
- Univ Paris-Sud UMR 8182 CNRS
- Université Paris-Saclay
- 91405 Orsay cedex
- France
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16
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Ye S, Xiang T, Li X, Wu J. Metal-catalyzed radical-type transformation of unactivated alkyl halides with C–C bond formation under photoinduced conditions. Org Chem Front 2019. [DOI: 10.1039/c9qo00272c] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Recent advances in the metal-catalyzed radical-type transformation of unactivated alkyl halides with C–C bond formation under photoinduced conditions are summarized. Usually, a broad reaction scope is observed including tertiary, secondary, and primary alkyl halides, with good functional group compatibility.
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Affiliation(s)
- Shengqing Ye
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies
- Taizhou University
- Taizhou 318000
- China
| | - Tianyi Xiang
- College of Pharmacy
- Shenyang Pharmaceutical University
- Shenyang 110016
- China
| | - Xiaofang Li
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Jie Wu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies
- Taizhou University
- Taizhou 318000
- China
- Department of Chemistry
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17
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Witzel S, Sekine K, Rudolph M, Hashmi ASK. New transmetalation reagents for the gold-catalyzed visible light-enabled C(sp or sp 2)-C(sp 2) cross-coupling with aryldiazonium salts in the absence of a photosensitizer. Chem Commun (Camb) 2018; 54:13802-13804. [PMID: 30457609 DOI: 10.1039/c8cc08227h] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The scope of photosensitizer-free visible light-driven gold-catalyzed cross-coupling was evaluated by a wide variety of organoboron and organosilicon species using four equivalents of aryldiazonium salts and (4-CF3-C6H4)3PAuCl in MeOH. In addition, a C(sp or sp2)-C(sp2) cross-coupling of organotrimethylsilanes and aryldiazonium salts was investigated. The reactions can be conducted under very mild reaction conditions, with a reduced amount of aryldiazonium salt (1.2 equiv.) by using a catalytic amount of Ph3PAuNTf2 in MeCN under irradiation with blue LEDs at room temperature.
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Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
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18
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Zhao Y, Jin J, Chan PWH. Gold Catalyzed Photoredox C1‐Alkynylation of
N
‐Alkyl‐1,2,3,4‐tetrahydroisoquinolines by 1‐Bromoalkynes with UVA LED Light. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801289] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yichao Zhao
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
| | - Jianwen Jin
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
| | - Philip Wai Hong Chan
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
- Department of Chemistry University of Warwick Coventry CV4 7AL United Kingdom
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19
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Liu M, Huang H, Chen Y. Cyclic Iodine Reagents Enable Allylic Alcohols for Alkyl Boronate Addition/Rearrangement by Photoredox Catalysis. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201800461] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mingshang Liu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
- School of Physical Science and Technology, ShanghaiTech University; 100 Haike Road, Shanghai 201210 China
| | - Hanchu Huang
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
| | - Yiyun Chen
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences; 345 Lingling Road, Shanghai 200032 China
- School of Physical Science and Technology, ShanghaiTech University; 100 Haike Road, Shanghai 201210 China
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20
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Dong J, Ding T, Zhang S, Chen Z, Tu Y. A Facile Approach to Oximes and Ethers by a Tandem NO
+
‐Initiated Semipinacol Rearrangement and H‐Elimination. Angew Chem Int Ed Engl 2018; 57:13192-13196. [DOI: 10.1002/anie.201807861] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Jia‐Wei Dong
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Tongmei Ding
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Shu‐Yu Zhang
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Zhi‐Min Chen
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yong‐Qiang Tu
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
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21
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Dong J, Ding T, Zhang S, Chen Z, Tu Y. A Facile Approach to Oximes and Ethers by a Tandem NO
+
‐Initiated Semipinacol Rearrangement and H‐Elimination. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807861] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jia‐Wei Dong
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Tongmei Ding
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Shu‐Yu Zhang
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Zhi‐Min Chen
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yong‐Qiang Tu
- School of Chemistry and Chemical Engineering andShanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
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22
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Rohe S, McCallum T, Morris AO, Barriault L. Transformations of Isonitriles with Bromoalkanes Using Photoredox Gold Catalysis. J Org Chem 2018; 83:10015-10024. [PMID: 29979602 DOI: 10.1021/acs.joc.8b01380] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Isonitriles have excellent electronic compatibility to react with free radicals. Recently, photoredox catalysis has emerged as a powerful tool for the construction of C-C bonds with few protocols for alkylative heterocycle synthesis through isonitrile addition. Herein, we describe the photocatalytic generation of alkyl radicals from unactivated bromoalkanes as part of an efficient cross-coupling strategy for the diversification of isonitriles using a dimeric gold(I) photoredox catalyst, [Au2(dppm)2]Cl2.
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Affiliation(s)
- Samantha Rohe
- Centre for Catalysis, Research and Innovation Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Terry McCallum
- Centre for Catalysis, Research and Innovation Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Avery O Morris
- Centre for Catalysis, Research and Innovation Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Louis Barriault
- Centre for Catalysis, Research and Innovation Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie Curie , Ottawa , Ontario K1N 6N5 , Canada
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23
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Zidan M, Rohe S, McCallum T, Barriault L. Recent advances in mono and binuclear gold photoredox catalysis. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01765d] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this minireview, recent developments in the field of photoredox catalysis and the applications of mono and binuclear Au(i) complexes in organic transformations are discussed.
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Affiliation(s)
- M. Zidan
- Centre for Catalysis
- Research and Innovation Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- K1N 6N5 Canada
| | - S. Rohe
- Centre for Catalysis
- Research and Innovation Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- K1N 6N5 Canada
| | - T. McCallum
- Centre for Catalysis
- Research and Innovation Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- K1N 6N5 Canada
| | - L. Barriault
- Centre for Catalysis
- Research and Innovation Department of Chemistry and Biomolecular Sciences
- University of Ottawa
- Ottawa
- K1N 6N5 Canada
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24
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Chakrabarty I, Akram MO, Biswas S, Patil NT. Visible light mediated desilylative C(sp2)–C(sp2) cross-coupling reactions of arylsilanes with aryldiazonium salts under Au(i)/Au(iii) catalysis. Chem Commun (Camb) 2018; 54:7223-7226. [DOI: 10.1039/c8cc03925a] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Desilylative C(sp2)–C(sp2) cross-coupling reactions of arylsilanes with aryldiazonium salts under Au(i)/photoredox catalysis have been reported.
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Affiliation(s)
- Indradweep Chakrabarty
- Division of Organic Chemistry
- CSIR – National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune
- India
| | - Manjur O. Akram
- Division of Organic Chemistry
- CSIR – National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune
- India
| | - Suprakash Biswas
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhauri
- Bhopal
- India
| | - Nitin T. Patil
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhauri
- Bhopal
- India
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25
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Akram MO, Banerjee S, Saswade SS, Bedi V, Patil NT. Oxidant-free oxidative gold catalysis: the new paradigm in cross-coupling reactions. Chem Commun (Camb) 2018; 54:11069-11083. [DOI: 10.1039/c8cc05601c] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The construction of C–C and C–X (X = hetero atom) bonds is the core aspect for the assembly of molecules. This feature article critically presents an overview of all the redox neutral cross-coupling reactions enabled by gold catalysis, which we believe would stimulate further research activities in this promising area.
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Affiliation(s)
- Manjur O. Akram
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune 411 008
- India
| | - Somsuvra Banerjee
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune 411 008
- India
| | - Sagar S. Saswade
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Vaibhav Bedi
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Nitin T. Patil
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
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26
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Abdellah I, Poater A, Lohier JF, Gaumont AC. Au(i)-Catalyzed hydroarylation of alkenes with N,N-dialkylanilines: a dual gold catalysis concept. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01309h] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, we report the efficiency of the commercially available [(PPh3)AuCl] complex in combination with a set of potassium salts to catalyze the hydroarylation of a broad variety of alkenes using N,N-dialkylanilines, leading to full conversion and complete selectivity toward the Markovnikov products.
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Affiliation(s)
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química
- Universitat de Girona
- 17003 Girona
- Spain
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