1
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Zhang X, Lu Y, Wang H, Chen M, Lin S, Huang X. Palladium-Catalyzed C2-Selective Direct Arylation of Benzo[ b]thiophene 1,1-Dioxides with Arylboronic Acids. ACS OMEGA 2024; 9:1738-1747. [PMID: 38222557 PMCID: PMC10785645 DOI: 10.1021/acsomega.3c08334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 01/16/2024]
Abstract
A novel oxidative cross-coupling of benzo[b]thiophene 1,1-dioxides with arylboronic acids was reported. The efficient reaction occurred at the C2-position via C-H activation, followed by Pd(II)-catalyzed arylation. Furthermore, a series of C2-arylated products with significant photoluminescence properties have been synthesized and characterized, which illustrates the potential applications of our method in the aggregation-induced emission field.
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Affiliation(s)
- Xinwei Zhang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Yaoyao Lu
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Hongzhen Wang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Mengting Chen
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Shuizhen Lin
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Xiaolei Huang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
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2
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Yu JW, Zhang CY, Chass GA, Zhang JX, Mu WH, Cao K. Pd-NHC catalysed regioselective activation of B(3,6)-H of o-carborane - a synergy between experiment and theory. Dalton Trans 2023; 52:10609-10620. [PMID: 37462420 DOI: 10.1039/d3dt01432k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Regioselective B-H activation of o-carboranes is an effective way for constructing o-carborane derivatives, which have broad applications in medicine, catalysis and the wider chemical industry. However, the mechanistic basis for the observed selectivities remains unresolved. Herein, a series of density functional theory (DFT) calculations were employed to characterise the palladium N-heterocyclic carbene (Pd-NHC) catalysed regioselective B(3,6)-diarylation of o-carboranes. Computational results at the IDSCRF(ether)-LC-ωPBE/BS1 and IDSCRF(ether)-LC-ωPBE/BS2 levels showed that the reaction undergoes a Pd(0) → Pd(II) → Pd(0) oxidation/reduction cycle, with the regioselective B(3)-H activation being the rate-determining step (RDS) for the full reaction profile. The computed RDS free energy barrier of 24.3 kcal mol-1 agrees well with the 82% yield of B(3,6)-diphenyl-o-carborane in ether solution at 298 K after 24 hours of reaction. The Ag2CO3 additive was shown to play a crucial role in lowering the RDS free energy barrier and facilitating the reaction. Natural charge population (NPA) and molecular surface electrostatic potential (ESP) analyses successfully predicted the experimentally observed regioselectivities, with electronic effects being revealed to be the dominant contributors to product selectivity. Steric hindrance was also shown to impact the reaction rate, as revealed by experimental and computational characterisation studies of substituents and ligand effects. Furthermore, computational predictions aligned with the experimental findings that NHC ligands outperform the phosphine ones for this particular reaction. Overall, the observed trends reported in this work are expected to assist in the rational optimisation of the efficiency and regioselectivity of this and related reactions.
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Affiliation(s)
- Jia-Wei Yu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, China.
| | - Cai-Yan Zhang
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Gregory A Chass
- School of Physical and Chemical Sciences, Queen Mary, University of London, London, E1 4NS, UK
- Department of Chemistry and Biological Chemistry, McMaster University, Hamilton, L8S 4L8, Canada
- Faculty of Land and Food Systems, The University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Jing-Xuan Zhang
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, China.
| | - Wei-Hua Mu
- Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650092, China.
| | - Ke Cao
- State Key Laboratory of Environment-friendly Energy Materials & School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
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3
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Pham SL, Kim T, McDonald FE. Stereospecific Cu(I)-Catalyzed C-O Cross-Coupling Synthesis of Acyclic 1,2-Di- and Trisubstituted Vinylic Ethers from Alcohols and Vinylic Halides. Org Lett 2023. [PMID: 37437300 PMCID: PMC10367064 DOI: 10.1021/acs.orglett.3c01849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
CuI and trans-N,N'-dimethylcyclohexyldiamine catalyze the single-step C-O bond cross-coupling between 1,2-di- and trisubstituted vinylic halides with functionalized alcohols, producing acyclic vinylic ethers. This stereospecific transformation selectively gives each of the (E)- and (Z)-vinylic ether products from the corresponding vinyl halide precursors. This method is compatible with carbohydrate-derived primary and secondary alcohols and several other functional groups. The conditions are mild enough to reliably generate vinylic allylic ethers without promoting Claisen rearrangements.
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Affiliation(s)
- San L Pham
- Department of Chemistry, Emory University, 1515 Dickey Drive NE, Atlanta, Georgia 30322, United States
| | - Taehee Kim
- Department of Chemistry, Emory University, 1515 Dickey Drive NE, Atlanta, Georgia 30322, United States
| | - Frank E McDonald
- Department of Chemistry, Emory University, 1515 Dickey Drive NE, Atlanta, Georgia 30322, United States
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4
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Tang C, Yang W, Zou Z, Liao F, Zeng C, Song K. Facile Synthesis Hyper-Crosslinked PdFe Bimetallic Polymer as Highly Active Catalyst for Ullmann Coupling Reaction of Chlorobenzene. Polymers (Basel) 2023; 15:2748. [PMID: 37376393 DOI: 10.3390/polym15122748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 06/01/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023] Open
Abstract
The synthesis of efficient and sustainable heterogeneous Pd-based catalysts has been an active field of research due to their crucial role in carbon-carbon coupling reactions. In this study, we developed a facile and eco-friendly in situ assembly technique to produce a PdFe bimetallic hyper-crosslinked polymer (HCP@Pd/Fe) to use as a highly active and durable catalyst in the Ullmann reaction. The HCP@Pd/Fe catalyst exhibits a hierarchical pore structure, high specific surface area, and uniform distribution of active sites, which promote catalytic activity and stability. Under mild conditions, the HCP@Pd/Fe catalyst is capable of efficiently catalyzing the Ullmann reaction of aryl chlorides in aqueous media. The exceptional catalytic performance of HCP@Pd/Fe is attributed to its robust absorption capability, high dispersion, and strong interaction between Fe and Pd, as confirmed by various material characterizations and control experiments. Furthermore, the coated structure of a hyper-crosslinked polymer enables easy recycling and reuse of the catalyst for at least 10 cycles without any significant loss of activity.
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Affiliation(s)
- Cheng Tang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
- Key Laboratory of Low-Cost Rural Environmental Treatment Technology, Sichuan University of Arts and Science, Education Department of Sichuan Province, Dazhou 635000, China
| | - Wenwen Yang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
| | - Zhijuan Zou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
| | - Fang Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
| | - Chunmei Zeng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
| | - Kunpeng Song
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road, Nanchong 637009, China
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5
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Yang B, Lu Y, Duan L, Ma X, Xia Y, Huang X. Palladium-Catalyzed C2-Selective Oxidative Olefination of Benzo[ b]thiophene 1,1-Dioxides with Styrenes and Acrylates. ACS OMEGA 2023; 8:10100-10110. [PMID: 36969423 PMCID: PMC10034782 DOI: 10.1021/acsomega.2c07427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Here, we disclose a novel Pd(II)-catalyzed oxidative Heck reaction of benzo[b]thiophene 1,1-dioxides with styrenes and acrylates. This transformation features broad functional group tolerance and high C2 selectivity. Furthermore, the photoluminescence properties of C-2 alkenylated products have been characterized, which illustrates the potential usefulness of our protocol in constructing π-conjugated fluorescent molecules.
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6
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Marcos-Ayuso G, Lledós A, Casares JA. Copper(I) activation of C-X bonds: bimolecular vs. unimolecular reaction mechanism. Chem Commun (Camb) 2022; 58:2718-2721. [PMID: 35113089 DOI: 10.1039/d1cc07027d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Experimental kinetic studies and DFT calculations show that the oxidative addition of aryl halides (Ar-X) to complexes [Cu(NHC)R] follow different paths depending on the nature of X. For X = Br a concerted addition leads to cis-[Cu(NHC)XRAr] from which the usual C-C coupled product Ar-R eliminates. However, for X = I trans-[Cu(NHC)IRAr] is formed instead, leading to the elimination of R-I in a metathesis reaction. This behaviour is accounted for by a change in the reaction mechanism for Ar-I, which involves two molecules of copper(I) complex, the second one stabilising the incipient iodide formed in the C-I breaking (oxidative addition) and C-I forming (reductive elimination) processes.
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Affiliation(s)
- Guillermo Marcos-Ayuso
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011-Valladolid, Spain.
| | - Agustí Lledós
- Departament de Química, Edifici C.n, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain.
| | - Juan A Casares
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47011-Valladolid, Spain.
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7
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Quivelli AF, Marinò M, Vitale P, García‐Álvarez J, Perna FM, Capriati V. Ligand-Free Copper-Catalyzed Ullmann-Type C-O Bond Formation in Non-Innocent Deep Eutectic Solvents under Aerobic Conditions. CHEMSUSCHEM 2022; 15:e202102211. [PMID: 34762333 PMCID: PMC9299726 DOI: 10.1002/cssc.202102211] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Indexed: 05/17/2023]
Abstract
An efficient and novel protocol was developed for a Cu-catalyzed Ullmann-type aryl alkyl ether synthesis by reacting various (hetero)aryl halides (Cl, Br, I) with alcohols as active components of environmentally benign choline chloride-based eutectic mixtures. Under optimized conditions, the reaction proceeded under mild conditions (80 °C) in air, in the absence of additional ligands, with a catalyst [CuI or CuII species] loading up to 5 mol% and K2 CO3 as the base, providing the desired aryloxy derivatives in up to 98 % yield. The potential application of the methodology was demonstrated in the valorization of cheap, easily available, and naturally occurring polyols (e. g., glycerol) for the synthesis of some pharmacologically active aryloxypropanediols (Guaiphenesin, Mephenesin, and Chlorphenesin) on a 2 g scale in 70-96 % yield. Catalyst, base, and deep eutectic solvent could easily and successfully be recycled up to seven times with an E-factor as low as 5.76.
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Affiliation(s)
- Andrea Francesca Quivelli
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Manuela Marinò
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Paola Vitale
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Joaquín García‐Álvarez
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Oviedo33071OviedoSpain
| | - Filippo M. Perna
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Vito Capriati
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
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8
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Pal A, Thakur A. One-pot synthesis of dimerized arenes and heteroarenes under mild conditions using Co( i) as an active catalyst. Org Biomol Chem 2022; 20:8977-8987. [DOI: 10.1039/d2ob01738e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A cheap and robust methodology for dimerization of arenes and heteroarenes with new Co(i) as an active catalyst at room temperature in a shorter time.
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Affiliation(s)
- Adwitiya Pal
- Department of Chemistry, Jadavpur University, Kolkata- 700032, India
| | - Arunabha Thakur
- Department of Chemistry, Jadavpur University, Kolkata- 700032, India
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9
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Kumaran S, Parthasarathy K. Rh(III)-Catalyzed Oxidative C-2 Coupling of N-Pyridinylindoles with Benzo[ b]thiophene 1,1-Dioxides via C-H Bond Activation. J Org Chem 2021; 86:7987-7999. [PMID: 34096307 DOI: 10.1021/acs.joc.1c00301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Rh(III)-catalyzed cross-dehydrogenative coupling of N-pyridinylindoles with benzo[b]thiophene 1,1-dioxides has been developed through directing-group-assisted C-H activation. This transformation constructs a new C-C bond from two inert C-H bonds in a one-pot reaction. The present reaction is compatible with various functional groups with respect to indoles and benzothiophene[b] 1,1-dioxides. Furthermore, the emission properties of synthesized compounds have been explored.
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Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
| | - Kanniyappan Parthasarathy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
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10
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Lozano C, Ramirez C, Sin N, Viart HF, Prusiner SB, Paras NA, Conrad J. Silver Benzoate Facilitates the Copper-Catalyzed C-N Coupling of Iodoazoles with Aromatic Nitrogen Heterocycles. ACS OMEGA 2021; 6:9804-9812. [PMID: 33869960 PMCID: PMC8047741 DOI: 10.1021/acsomega.1c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
In the literature, C-N coupling methods for the reaction of iodo-oxazole with 2-pyridinone were found to be low yielding. C-N coupling using silver benzoate additives with CuI catalysts and 4,7-dimethoxy-1,10-phenanthroline ligands has been developed to afford synthetically useful yields of the desired heterobicycle product. The reaction conditions are applied to the coupling of a range of iodo-heterocycles with 2-pyridinone. The coupling of a variety of NH-containing heterocycles with 4-iodo-oxazole is also demonstrated. The use of 2-, 4-, or 5-iodo-oxazole allows for the coupling of pyridinone to each oxazole position.
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Affiliation(s)
- Cedric Lozano
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
| | - Cristian Ramirez
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
| | - Ny Sin
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
- Department
of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco 94158, California, United States
| | - Hélène
M.-F. Viart
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
- Department
of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco 94158, California, United States
| | - Stanley B. Prusiner
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
- Department
of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco 94158, California, United States
- Department
of Biochemistry and Biophysics, University
of California San Francisco, San
Francisco, California 94158, United States
| | - Nick A. Paras
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
- Department
of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco 94158, California, United States
| | - Jay Conrad
- Institute
for Neurodegenerative Diseases, Weill Institute for Neurosciences, University of California San Francisco, San Francisco, California 94158, United States
- Department
of Neurology, Weill Institute for Neurosciences, University of California San Francisco, San Francisco 94158, California, United States
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11
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Roque JB, Sarpong R, Musaev DG. Key Mechanistic Features of the Silver(I)-Mediated Deconstructive Fluorination of Cyclic Amines: Multistate Reactivity versus Single-Electron Transfer. J Am Chem Soc 2021; 143:3889-3900. [DOI: 10.1021/jacs.0c13061] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jose B. Roque
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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12
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Mohammadparast F, Teja Addanki Tirumala R, Bhardwaj Ramakrishnan S, Dadgar AP, Andiappan M. Operando UV–Vis spectroscopy as potential in-line PAT system for size determination of functioning metal nanocatalysts. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115821] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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CuIBiOI is an efficient novel catalyst in Ullmann-type CN couplings with wide scope—A rare non-photocatalyic application. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Gurjar KK, Sharma RK. Synthetic and computational studies on CuI/ligand pair promoted activation of C(Aryl)-Cl bond in C-N coupling reactions. Heliyon 2020; 6:e03233. [PMID: 32055723 PMCID: PMC7005438 DOI: 10.1016/j.heliyon.2020.e03233] [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: 03/10/2019] [Revised: 11/26/2019] [Accepted: 01/13/2020] [Indexed: 11/23/2022] Open
Abstract
Cu/ligand-mediated coupling reactions have been widely investigated in the recent past. However, activation of cheaper aryl chlorides is still a great limitation of these reactions. During the course of present investigations efforts have been made to develop a normal and facile CuI/ligand pair protocol for arylation of phthalimide using aryl chlorides. The protocol has also been extended for arylation of amines. On the basis of experimental and theoretical results, a catalytic cycle has also been proposed and it has been established that these reactions follow oxidative addition-reductive elimination (OA-RE) pathway. These studies have indicated that tetracoordinated [Cu(L1)(L2)]+ complex is active catalytic species in these reactions.
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15
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Malavade V, Patil M, Patil M. Scope, Kinetics, and Mechanism of “On Water” Cu Catalysis in the C-N Cross-Coupling Reactions of Indole Derivatives. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901542] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Vrunda Malavade
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
| | - Manish Patil
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
| | - Mahendra Patil
- UM-DAE Centre for Excellence in Basic Sciences; University of Mumbai; Vidyanagari Campus, Kalina, Santacruz (East) Mumbai 400098 India
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16
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Paul S, Joy BP, Rajendran R, Gudimetla VB. Cost Efficient Synthesis of Diaryl Ethers Catalysed by CuI, Imidazolium Chloride and Cs
2
CO
3. ChemistrySelect 2019. [DOI: 10.1002/slct.201900473] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sudeep Paul
- Department of ChemistrySchool of Basic and Applied Sciences, CUTN Thiruvarur- 610 005 Tamil Nadu India
| | - Bony P. Joy
- Department of ChemistrySchool of Basic and Applied Sciences, CUTN Thiruvarur- 610 005 Tamil Nadu India
| | - Rajarajan Rajendran
- Department of ChemistrySchool of Basic and Applied Sciences, CUTN Thiruvarur- 610 005 Tamil Nadu India
| | - Vittal B. Gudimetla
- Department of ChemistrySchool of Basic and Applied Sciences, CUTN Thiruvarur- 610 005 Tamil Nadu India
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17
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Feng W, Wang T, Liu D, Wang X, Dang Y. Mechanism of the Palladium-Catalyzed C(sp3)–H Arylation of Aliphatic Amines: Unraveling the Crucial Role of Silver(I) Additives. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01412] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenhui Feng
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Tianyang Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
| | - Dongzhi Liu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xiaotai Wang
- Department of Chemistry, University of Colorado Denver, Campus Box 194, P.O. Box 173364, Denver, Colorado 80217-3364, United States
- Institute of Molecular Science, Shanxi University, Taiyuan, Shanxi 030006, China
| | - Yanfeng Dang
- Tianjin Key Laboratory of Molecular Optoelectronic Science, Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
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18
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Morarji DV, Gurjar KK. Theoretical and Experimental Studies: Cu(I)/Cu(II) Catalytic Cycle in CuI/Oxalamide-Promoted C–N Bond Formation. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00224] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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19
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Chen Z, Jiang Y, Zhang L, Guo Y, Ma D. Oxalic Diamides and tert-Butoxide: Two Types of Ligands Enabling Practical Access to Alkyl Aryl Ethers via Cu-Catalyzed Coupling Reaction. J Am Chem Soc 2019; 141:3541-3549. [PMID: 30688450 DOI: 10.1021/jacs.8b12142] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A robust and practical protocol for preparing alkyl aryl ethers has been developed, which relies on using two types of ligands to promote Cu-catalyzed alkoxylation of (hetero)aryl halides. The reaction scope is very general for a variety of coupling partners, particularly for challenging secondary alcohols and (hetero)aryl chlorides. In case of coupling with aryl chlorides and bromides, two oxalic diamides serve as the powerful ligands. The tert-butoxide is first demonstrated as a ligand for Cu-catalyzed coupling reaction, leading to alkoxylation of aryl iodides complete at room temperature. Additionally, a number of carbohydrate derivatives are applicable for this coupling reaction, affording the corresponding carbohydrate-aryl ethers in 29-98% yields.
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1425] [Impact Index Per Article: 237.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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