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Khatal SB, Purkayastha SK, Guha AK, Tothadi S, Pratihar S. Enhancing Precatalyst Performance and Robustness through Aromaticity: Insights from Iridaheteroaromatics. J Org Chem 2024; 89:2480-2493. [PMID: 38308648 DOI: 10.1021/acs.joc.3c02504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2024]
Abstract
Despite the inherent stability-enhancing benefits of dπ-pπ conjugation-induced aromaticity, metallaaromatic catalysts remain underutilized in this context, despite their reactivity with organic functionalities in stoichiometric reactions. We present a strategy for synthesizing a diverse range of iridaheteroaromatics, (L^L)IrIII(Cp*)I, including iridapyridylidene-indole, iridapyridene-indole, and iridaimidazole, via in situ deprotonation/metalation reactions utilizing [Cp*IrCl2]2 and the respective ligands. These catalysts exhibit enhanced σ-donor and π-acceptor properties, intrinsic σ-π continuum attributes, and versatile binding sites, contributing to stability through enhanced dπ-pπ conjugation-induced aromaticity. Spectroscopic data, X-ray crystallographic data, and density functional theory calculations confirm their aromaticity. These iridaheteroaromatics exhibit formidable catalytic ability across a spectrum of transformations under industrially viable conditions, notably excelling in highly selective cross alkylation and β-alkylation of alcohols and an eco-friendly avenue for quinolone synthesis, achieving remarkably high turnover frequencies (TOFs). Additionally, this method extends to the self-condensation of bioalcohols like ethanol, n-butanol, and n-hexanol in water, replicating conditions frequently encountered in primary fermentation solutions. These iridaheteroaromatics exhibit strong catalytic activity with fast reaction rates, high TOFs, broad substrate compatibility, and remarkable selectivity, displaying their potential as robust catalysts in large-scale applications and emphasizing their practical significance beyond their structural and theoretical importance.
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Affiliation(s)
- Sandip Bapu Khatal
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials and Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India
| | | | - Ankur K Guha
- Advanced Computational Chemistry Centre, Cotton University, Panbazar, Guwahati, Assam 781001, India
| | - Srinu Tothadi
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Analytical and Environmental Sciences Division and Centralized Instrumentation Facility, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar 364002, India
| | - Sanjay Pratihar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Inorganic Materials and Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India
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2
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Çakır S, Kavukcu SB, Şahin O, Günnaz S, Türkmen H. N-Alkylation and N-Methylation of Amines with Alcohols Catalyzed by Nitrile-Substituted NHC-Ir(III) and NHC-Ru(II) Complexes. ACS OMEGA 2023; 8:5332-5348. [PMID: 36816636 PMCID: PMC9933218 DOI: 10.1021/acsomega.2c06341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
A series of nitrile-modified N-heterocyclic carbene (NHC) complexes of Ir(III) (2a-e) and Ru(II) (3a-d) have been prepared by transmetallation of [IrCp*Cl2]2 and [RuCl2(p-cymene)]2 forming an in situ NHC-Ag complex. The structures of all complexes were characterized by 1H NMR, 13C NMR, and Fourier transform infrared (FT-IR) spectroscopies. And the structures were clearly elucidated by performing X-ray diffraction studies on 2b, 3a, and 3c single crystals. The complexes of NHC-Ir(III) (2a-e) and NHC-Ru(II) (3a-d) were investigated in the N-alkylation reaction of aniline derivatives with benzyl alcohols to form N-benzyl amines and in the N-methylation reaction of aniline derivatives with methanol. Both reactions were performed in solvent-free media. The Ir(III) complexes (2a-e) were found to perform essentially better than similar Ru(II) complexes (3a-d) in the N-alkylation and N-methylation reactions. Among the Ir(III) complexes (2a-e), the best results were obtained with 2b. The catalytic mechanisms of both reactions were revealed by 1H NMR study. Formation of Ir-hydride species was observed for both reactions. This new report provides useful information to evaluate the activity of complexes and the differences in sensitivity between the NHCs.
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Affiliation(s)
- Sinem Çakır
- Department
of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Türkiye
| | - Serdar Batıkan Kavukcu
- Department
of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Türkiye
| | - Onur Şahin
- Department
of Occupat Health & Safety, Faculty of Health Sciences, Sinop University, Sinop 57000, Türkiye
| | - Salih Günnaz
- Department
of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Türkiye
| | - Hayati Türkmen
- Department
of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Türkiye
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3
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Borthakur I, Kumari S, Kundu S. Water as a solvent: transition metal catalyzed dehydrogenation of alcohols going green. Dalton Trans 2022; 51:11987-12020. [PMID: 35894592 DOI: 10.1039/d2dt01060g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long-established practice of using organic solvents in synthetic chemistry is currently becoming a major focus of environmental alarms as many of the chemical wastes are generated in the form of organic solvents. Recently, various alternative solvents have been recognized by the scientific community, including water, ionic liquids, supercritical fluids, glycerol, polyethylene glycol, etc. Among these alternatives, water is unquestionably an ideal solvent as it is abundant, cheap, non-toxic, and non-flammable. In the last few decades, a breakthrough has been achieved in the field of transition metal-catalyzed dehydrogenation of alcohols and the related chemistry for the sustainable synthesis of a wide range of valuable compounds. Although a large number of reports with new potential are published every year following this alcohol dehydrogenation strategy, the utilization of water as a solvent in alcohol dehydrogenation and related coupling reactions is yet to be highlighted properly. This review summarizes the advances in metal-catalyzed dehydrogenative functionalization of alcohols using water as a solvent.
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Affiliation(s)
- Ishani Borthakur
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh (U.P.), India.
| | - Saloni Kumari
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh (U.P.), India.
| | - Sabuj Kundu
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, Uttar Pradesh (U.P.), India.
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4
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Podyacheva E, Afanasyev OI, Vasilyev DV, Chusov D. Borrowing Hydrogen Amination Reactions: A Complex Analysis of Trends and Correlations of the Various Reaction Parameters. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01133] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Evgeniya Podyacheva
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
- National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russian Federation
| | - Oleg I. Afanasyev
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Dmitry V. Vasilyev
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Egerlandstr. 3, 91058 Erlangen, Germany
| | - Denis Chusov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
- National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russian Federation
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5
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Byrne JP, Delgado L, Paradisi F, Albrecht M. Carbohydrate‐functionalized triazolylidene iridium complexes: hydrogenation catalysis in water with asymmetric induction. ChemCatChem 2022; 14:e202200086. [PMID: 35910522 PMCID: PMC9310948 DOI: 10.1002/cctc.202200086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/23/2022] [Indexed: 12/02/2022]
Abstract
Two sets of carbohydrate‐NHC hybrid iridium complexes were synthesised in order to combine properties of carbohydrates and triazolylidene (trz) ligands in organometallic catalysis. One set features a direct trz linkage to the anomeric carbohydrate carbon, while the second set is comprised of an ethyl linker between the two functional units. Deprotection of the carbohydrate afforded hybrid complexes that efficiently catalyse the direct hydrogenation of ketones in water. The catalytic activity of the hybrid complexes was influenced by the pH of the aqueous medium and surpassed the activity of carbohydrate‐free or acetyl‐protected analogues (>90 % vs 13 % yield). While no enantiomeric induction was observed for the ethyl‐linked hybrids, a moderate enantiomeric excess (ee) was induced by the directly linked systems. Moreover, these carbohydrate‐trz hybrid complexes displayed mixed inhibitory activity towards a glycosidase from H. orenii that contain a glucose binding site.
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Affiliation(s)
- Joseph P Byrne
- Universität Bern: Universitat Bern Department of Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | - Lydia Delgado
- University of Nottingham University Park Campus: University of Nottingham School of Chemistry UNITED KINGDOM
| | - Francesca Paradisi
- Universität Bern: Universitat Bern Department of Chemistry, Biochemistry and Pharmaceutical Sciences SWITZERLAND
| | - Martin Albrecht
- Universität Bern: Universitat Bern Department of Chemistry, Biochemistry and Pharmaceutical Sciences Freiestrasse 3 3012 Bern SWITZERLAND
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Moutaoukil Z, Serrano-Díez E, Collado IG, Jiménez-Tenorio M, Botubol-Ares JM. N-Alkylation of organonitrogen compounds catalyzed by methylene-linked bis-NHC half-sandwich ruthenium complexes. Org Biomol Chem 2022; 20:831-839. [PMID: 35018948 DOI: 10.1039/d1ob02214h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
An efficient ruthenium-catalyzed N-alkylation of amines, amides and sulfonamides has been developed employing novel pentamethylcyclopentadienylruthenium(II) complexes bearing the methylene linked bis(NHC) ligand bis(3-methylimidazol-2-ylidene)methane. The acetonitrile complex 2 has proven particularly effective with a broad range of substrates with low catalyst loading (0.1-2.5 mol%) and high functional group tolerance under mild conditions. A total of 52 N-alkylated organonitrogen compounds including biologically relevant scaffolds were synthesized from (hetero)aromatic and aliphatic amines, amides and sulfonamides using alcohols or diols as alkylating agents in up to 99% isolated yield, even on gram-scale reactions. In the case of sulfonamides, it is the first example of N-alkylation employing a transition-metal complex bearing NHC ligands.
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Affiliation(s)
- Zakaria Moutaoukil
- University of Cadiz, Departamento de Química Orgánica-INBIO, Facultad de Ciencias, Torre Sur, 4° planta, 11510, Puerto Real, Cádiz.
| | - Emmanuel Serrano-Díez
- University of Cadiz, Departamento de Química Orgánica-INBIO, Facultad de Ciencias, Torre Sur, 4° planta, 11510, Puerto Real, Cádiz.
| | - Isidro G Collado
- University of Cadiz, Departamento de Química Orgánica-INBIO, Facultad de Ciencias, Torre Sur, 4° planta, 11510, Puerto Real, Cádiz.
| | - Manuel Jiménez-Tenorio
- University of Cadiz, Departamento de Ciencias de los Materiales e Ingeniería Metalúrgica y Química Inorgánica-INBIO, Facultad de Ciencias, Torre Norte, 1° planta, 11510, Puerto Real, Cádiz, Spain
| | - José Manuel Botubol-Ares
- University of Cadiz, Departamento de Química Orgánica-INBIO, Facultad de Ciencias, Torre Sur, 4° planta, 11510, Puerto Real, Cádiz.
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7
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Flores JC, Silbestri GF, de Jesús E. Water-soluble transition-metal complexes with hydrophilic N-heterocyclic carbene ligands for aqueous-phase applications. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Feng X, Huang M. Effect of the ancillary ligand in N-heterocyclic carbene iridium(III) catalyzed N-alkylation of amines with alcohols. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115289] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Huang M, Liu J, Li Y, Lan XB, Su P, Zhao C, Ke Z. Recent advances on N-heterocyclic carbene transition metal complexes for dehydrogenative catalysis using alcohols. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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10
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Ru(II)-NHC catalysed N-Alkylation of amines with alcohols under solvent-free conditions. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Guérin V, Legault CY. Synthesis of NHC-Iridium(III) Complexes Based on N-Iminoimidazolium Ylides and Their Use for the Amine Alkylation by Borrowing Hydrogen Catalysis. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00726] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Vincent Guérin
- University of Sherbrooke, Department of Chemistry, Centre in Green Chemistry and Catalysis,2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Claude Y. Legault
- University of Sherbrooke, Department of Chemistry, Centre in Green Chemistry and Catalysis,2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
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12
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Kobayashi M, Itoh S, Yoshimura K, Tsukamoto Y, Obora Y. Iridium Complex-Catalyzed C2-Extension of Primary Alcohols with Ethanol via a Hydrogen Autotransfer Reaction. J Org Chem 2020; 85:11952-11958. [PMID: 32786619 DOI: 10.1021/acs.joc.0c01540] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of a C2-extension of primary alcohols with ethanol as the C2 source and catalysis by [Cp*IrCl2]2 (where Cp* = pentamethylcyclopentadiene) is described. This new extension system was used for a range of benzylic alcohol substrates and for aliphatic alcohols with ethanol as an alkyl reagent to generate the corresponding C2-extended linear alcohols. Mechanistic studies of the reaction by means of intermediates and deuterium labeling experiments suggest the reaction is based on hydrogen autotransfer.
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Affiliation(s)
- Masaki Kobayashi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Satoshi Itoh
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Keisuke Yoshimura
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yuya Tsukamoto
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
| | - Yasushi Obora
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Osaka 564-8680, Japan
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13
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Omprakash Rathi J, Subray Shankarling G. Recent Advances in the Protection of Amine Functionality: A Review. ChemistrySelect 2020. [DOI: 10.1002/slct.202000764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jyoti Omprakash Rathi
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
| | - Ganapati Subray Shankarling
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
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14
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Nalikezhathu A, Cherepakhin V, Williams TJ. Ruthenium Catalyzed Tandem Pictet-Spengler Reaction. Org Lett 2020; 22:4979-4984. [PMID: 32558575 DOI: 10.1021/acs.orglett.0c01485] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report a pyridyl-phosphine ruthenium(II) catalyzed tandem alcohol amination/Pictet-Spengler reaction sequence to synthesize tetrahydro-β-carbolines from an alcohol and tryptamine. Our conditions use a Lewis acid cocatalyst, In(OTf)3, that is compatible with typically base catalyzed amination and an acid catalyzed Pictet-Spengler cyclization. This method proceeds well with benzylic alcohols, heterocyclic carbinols, and aliphatic alcohols. We also show how combining this reaction with a subsequent cycloamination enables a direct synthesis of tetracyclic alkaloids like harmicine.
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Affiliation(s)
- Anju Nalikezhathu
- Donald P. and Katherine B. Loker Hydrocarbon Institute and Department of Chemistry, University of Southern California, Los Angeles California 90089-1661, United States
| | - Valeriy Cherepakhin
- Donald P. and Katherine B. Loker Hydrocarbon Institute and Department of Chemistry, University of Southern California, Los Angeles California 90089-1661, United States
| | - Travis J Williams
- Donald P. and Katherine B. Loker Hydrocarbon Institute and Department of Chemistry, University of Southern California, Los Angeles California 90089-1661, United States
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15
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Yiğit B, Özge Karaca E, Yiğit M, Gürbüz N, Arslan H, Özdemir İ. Active ruthenium(II)-NHC complexes for alkylation of amines with alcohols using solvent-free conditions. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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16
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Maji M, Chakrabarti K, Panja D, Kundu S. Sustainable synthesis of N-heterocycles in water using alcohols following the double dehydrogenation strategy. J Catal 2019. [DOI: 10.1016/j.jcat.2019.03.028] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Zhao G, Hu D, Zhou S, Zhang J, Wang L. Supported CuNi Alloy Catalyzed N-Alkylation of Bioderived 2,5-Dihydroxymethylfuran With Aniline. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Guangyuan Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, P. R. China
| | - Danxin Hu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, P. R. China
| | - Shenghu Zhou
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P. R. China
| | - Jian Zhang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, P. R. China
| | - Lei Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo 315201, P. R. China
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18
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Bi-functional catalyst of porous N-doped carbon with bimetallic FeCu for solvent-free resultant imines and hydrogenation of nitroarenes. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.12.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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Marr AC, Morgan PJ, Saunders GC, Thomas HP. Conversion of haloform to carbonate by iridium N-heterocyclic carbene complexes and silver(i) oxide. Dalton Trans 2019; 48:1947-1949. [PMID: 30637429 DOI: 10.1039/c8dt04456b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The reaction between haloform, the complexes [Cp*IrCl2(κC-MeNC3H2NCH2Ar)] (Ar = C6H3F2-2,6, C6H3F-2-Cl-6, C6H3Me2-2,6) and silver(i) oxide proceeded by carbon-halogen bond fission to yield the carbonate complexes [Cp*Ir(κ2O-CO3)(κC-MeNC3H2NCH2Ar)].
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Affiliation(s)
- Andrew C Marr
- School of Chemistry and Chemical Engineering, Queen's University Belfast, David Keir Building, Belfast BT9 5AG, UK
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20
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Şahin N, Özdemir N, Gürbüz N, Özdemir İ. Novel N
-Alkylbenzimidazole-Ruthenium (II) complexes: Synthesis and catalytic activity of N-alkylating reaction under solvent-free medium. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4704] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Neslihan Şahin
- Department of Basic Education; University of Cumhuriyet Faculty of Education; 58140 Sivas Turkey
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
| | - Namık Özdemir
- Faculty of Education; University of Ondokuz Mayıs Department of Mathematics and Science Education; 55139 Samsun Turkey
| | - Nevin Gürbüz
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
| | - İsmail Özdemir
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
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21
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Rakers L, Schäfers F, Glorius F. In Water and under Mild Conditions: α‐Alkylation of Ketones with Alcohols by Phase‐Transfer‐Assisted Borrowing Hydrogen Catalysis. Chemistry 2018; 24:15529-15532. [DOI: 10.1002/chem.201804308] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Lena Rakers
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48419 Münster Germany
| | - Felix Schäfers
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48419 Münster Germany
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48419 Münster Germany
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22
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Chung H, Chung YK. Cobalt–Rhodium Heterobimetallic Nanoparticle-Catalyzed N-Alkylation of Amines with Alcohols to Secondary and Tertiary Amines. J Org Chem 2018; 83:8533-8542. [DOI: 10.1021/acs.joc.8b01109] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hyunho Chung
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Young Keun Chung
- Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 08826, Korea
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23
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Fujita KI, Furukawa S, Morishima N, Shimizu M, Yamaguchi R. N-Alkylation of Aqueous Ammonia with Alcohols Leading to Primary Amines Catalyzed by Water-Soluble N-Heterocyclic Carbene Complexes of Iridium. ChemCatChem 2018. [DOI: 10.1002/cctc.201702037] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ken-ichi Fujita
- Graduate School of Human and Environmental Studies; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
| | - Shohichi Furukawa
- Graduate School of Human and Environmental Studies; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
| | - Namino Morishima
- Graduate School of Human and Environmental Studies; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
| | - Mineyuki Shimizu
- Graduate School of Human and Environmental Studies; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
| | - Ryohei Yamaguchi
- Graduate School of Human and Environmental Studies; Kyoto University; Sakyo-ku Kyoto 606-8501 Japan
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