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Mahala S, Gupta N, Singh S, Sharma AK, Bhuvanesh N, Joshi H. Designing Cobalt(II) Complex for Chemoselective Synthesis of 2-Aryl-3-Formyl Indoles from Amino Alcohols and Alcohols †. Chemistry 2024:e202401698. [PMID: 38899378 DOI: 10.1002/chem.202401698] [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: 04/30/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 06/21/2024]
Abstract
An air-stable, inexpensive, and isolable cobalt(II) complex (C1) of N-((1-methyl-1H-imidazol-2-yl)methyl)-2-(phenylselanyl)ethan amine (L1) was synthesized and characterized. The complex was used to catalyze a one-pot cascade reaction between 2-(2-aminophenyl)ethanols and benzyl alcohol derivatives. Interestingly, 2-aryl-3-formylindole derivatives were formed instead of N-alkylated or C-3 alkylated indoles. A broad substrate scope can be activated using this protocol with only 5.0 mol % catalyst loading to achieve up to 87 % yield of 2-aryl-3-formylindole derivatives. The mechanistic studies suggested that the reaction proceeds through tandem imine formation followed by cyclization.
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Affiliation(s)
- Suman Mahala
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Navya Gupta
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Sohan Singh
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Alpesh K Sharma
- Department of Chemistry, The University of Chicago, Chicago, IL, 60637, USA
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas, 77842-3012, USA
| | - Hemant Joshi
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
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2
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Shanker GS, Ghatak A, Binyamin S, Balilty R, Shimoni R, Liberman I, Hod I. Regulation of Catalyst Immediate Environment Enables Acidic Electrochemical Benzyl Alcohol Oxidation to Benzaldehyde. ACS Catal 2024; 14:5654-5661. [PMID: 38660611 PMCID: PMC11036388 DOI: 10.1021/acscatal.4c00476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/26/2024]
Abstract
Electrocatalytic alcohol oxidation in acid offers a promising alternative to the kinetically sluggish water oxidation reaction toward low-energy H2 generation. However, electrocatalysts driving active and selective acidic alcohol electrochemical transformation are still scarce. In this work, we demonstrate efficient alcohol-to-aldehyde conversion achieved by reticular chemistry-based modification of the catalyst's immediate environment. Specifically, coating a Bi-based electrocatalyst with a thin layer of metal-organic framework (MOF) substantially improves its performance toward benzyl alcohol electro-oxidation to benzaldehyde in a 0.1 M H2SO4 electrolyte. Detailed analysis reveals that the MOF adlayer influences catalysis by increasing the reactivity of surface hydroxides as well as weakening the catalyst-benzaldehyde binding strength. In turn, low-potential (0.65 V) cathodic H2 evolution was obtained through coupling it with anodic benzyl alcohol electro-oxidation. Consequently, the presented approach could be implemented in a wide range of electrocatalytic oxidation reactions for energy-conversion application.
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Affiliation(s)
- G. Shiva Shanker
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Arnab Ghatak
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Shahar Binyamin
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Rotem Balilty
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Ran Shimoni
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Itamar Liberman
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Idan Hod
- Department of Chemistry and
Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
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3
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Zhou MJ, Miao Y, Gu Y, Xie Y. Recent Advances in Reversible Liquid Organic Hydrogen Carrier Systems: From Hydrogen Carriers to Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311355. [PMID: 38374727 DOI: 10.1002/adma.202311355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/31/2024] [Indexed: 02/21/2024]
Abstract
Liquid organic hydrogen carriers (LOHCs) have gained significant attention for large-scale hydrogen storage due to their remarkable gravimetric hydrogen storage capacity (HSC) and compatibility with existing oil and gas transportation networks for long-distance transport. However, the practical application of reversible LOHC systems has been constrained by the intrinsic thermodynamic properties of hydrogen carriers and the performances of associated catalysts in the (de)hydrogenation cycles. To overcome these challenges, thermodynamically favored carriers, high-performance catalysts, and catalytic procedures need to be developed. Here, significant advances in recent years have been summarized, primarily centered on regular LOHC systems catalyzed by homogeneous and heterogeneous catalysts, including dehydrogenative aromatization of cycloalkanes to arenes and N-heterocyclics to N-heteroarenes, as well as reverse hydrogenation processes. Furthermore, with the development of metal complexes for dehydrogenative coupling, a new family of reversible LOHC systems based on alcohols is described that can release H2 under relatively mild conditions. Finally, views on the next steps and challenges in the field of LOHC technology are provided, emphasizing new resources for low-cost hydrogen carriers, high-performance catalysts, catalytic technologies, and application scenarios.
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Affiliation(s)
- Min-Jie Zhou
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yulong Miao
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yanwei Gu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
| | - Yinjun Xie
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China
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4
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Kumar N, Sankar RV, Gunanathan C. Ruthenium-Catalyzed Self-Coupling of Secondary Alcohols. J Org Chem 2023. [PMID: 38039390 DOI: 10.1021/acs.joc.3c02029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Abstract
A simple catalytic method for self-coupling of secondary alcohols leading to the synthesis of β-branched ketones under mild conditions is reported. Well-defined ruthenium pincer complex catalyzed the reactions. Optimization studies revealed that sodium tert-butoxide is an appropriate base for this transformation. Functionalized aryl methanols, heteroaryl methanols, and linear and branched aliphatic secondary alcohols underwent facile catalytic self-coupling reactions. Mechanistic studies revealed that both catalyst and base are crucial to achieve dehydrogenation of secondary alcohols to ketones, their subsequent controlled aldol condensation, and further hydrogenation of α,β-unsaturated intermediates, leading to the selective formation of β-branched ketone products. Notably, the noninnocent PNP ligand which displays amine-amide metal-ligand cooperation operative in a catalyst played a key role in facilitating this catalytic self-coupling of secondary alcohols. Liberated molecular hydrogen and water are the only byproducts.
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Affiliation(s)
- Nitin Kumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Raman Vijaya Sankar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar 752050, India
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5
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Ghamari Kargar P, Bagherzade G. Advances in the greener synthesis of chromopyrimidine derivatives by a multicomponent tandem oxidation process. Sci Rep 2023; 13:19104. [PMID: 37925547 PMCID: PMC10625593 DOI: 10.1038/s41598-023-46004-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/26/2023] [Indexed: 11/06/2023] Open
Abstract
A hydrophilic cobalt/copper heterogeneous bimetallic catalyst named mTEG-CS-Co/Cu-Schiff-base/IL was successfully synthesized from chitosan polysaccharide. The new catalyst was investigated and confirmed using various techniques including FT-IR, FE-SEM, EDX-EDS, XRD, TEM, TGA, AFM, NMR and ICP. The catalyst exhibited powerful catalyst activity for the tandem one pot oxidative chromopyrimidine reaction from benzyl alcohols under mild conditions, utilizing air as a clean source in a green protocol. The catalyst was compatible with a wide range of benzyl alcohols, and aldehydes formed in situ, and bis-aldehydes synthesized were condensed with urea/4‑hydroxycumarin to provide favorable products in good yields for all derivatives (14 new derivatives). The presence of tri-ethylene glycol and imidazolium moieties with hydrophilic properties on the mTEG-CS-Co/Cu-Schiff-base/IL nanohybrid provides dispersion of the nanohybrid particles in water, leading to higher catalytic performance. Furthermore, the reaction exhibited several other notable features, including low catalyst loading, the ability to be recycled for up to 6 stages, high atom economy, a simple work procedure, short reaction time, utilization of an environmentally friendly nanohybrid, and the replacement of volatile and organic solvents with water solvent.
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Affiliation(s)
- Pouya Ghamari Kargar
- Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand, 97175-615, Iran
| | - Ghodsieh Bagherzade
- Department of Chemistry, Faculty of Sciences, University of Birjand, Birjand, 97175-615, Iran.
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6
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Saini P, Dolui P, Nair A, Verma A, Elias AJ. A Bench-stable 8-Aminoquinoline Derived Phosphine-free Manganese (I)-Catalyst for Environmentally Benign C(α)-Alkylation of Oxindoles with Secondary and Primary Alcohols. Chem Asian J 2023; 18:e202201148. [PMID: 36688923 DOI: 10.1002/asia.202201148] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/11/2023] [Accepted: 01/23/2023] [Indexed: 01/24/2023]
Abstract
Herein, we report a new air-stable phosphine-free 8-AQ (8-aminoquinoline) based Mn(I) carbonyl complex as the catalyst for the C(α)-alkylation of oxindoles with alcohols. The Mn complex [(8-AQ)Mn(CO)3 Br] works effectively as a catalyst for the α-alkylation of oxindoles by both secondary as well as primary alcohols. The procedure has been used for the synthesis of pharmaceutically important recently developed oxindoles such as 3-(4-methoxybenzyl)indolin-2-one, 3-(4-(dimethylamino)benzyl)indolin-2-one, 3-(4-(dimethylamino)phenyl)-5-fluoroindolin-2-one and 3-(benzo[d][1,3]dioxol-5-ylmethyl)indolin-2-one, which are found to be effective in preventing specific types of cell death in neurodegenerative disorders. Control experiments have been carried out to investigate the reaction mechanism and the crucial role of metal-ligand cooperation via -NH2 moiety during catalysis.
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Affiliation(s)
- Parul Saini
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Pritam Dolui
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Abhishek Nair
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Ashutosh Verma
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Anil J Elias
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
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7
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Sankar RV, Manikpuri D, Gunanathan C. Ruthenium-catalysed α-prenylation of ketones using prenol. Org Biomol Chem 2023; 21:273-278. [PMID: 36374234 DOI: 10.1039/d2ob01882a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Prenol and isoprenoids are common structural motifs in biological systems and possess diverse applications. An unprecedented direct catalytic prenylation of ketones using prenol is attained. This C-C bond formation reaction requires only a ruthenium pincer catalyst and a base, and H2O is the only byproduct.
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Affiliation(s)
- Raman Vijaya Sankar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar-752050, India.
| | - Deepsagar Manikpuri
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar-752050, India.
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), An OCC of Homi Bhabha National Institute, Bhubaneswar-752050, India.
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8
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Yadav V, Jagtap SG, Balaraman E, Mhaske SB. Nickel-Catalyzed Direct Synthesis of N-Substituted Indoles from Amino Alcohols and Alcohols. Org Lett 2022; 24:9054-9059. [DOI: 10.1021/acs.orglett.2c03617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Vinita Yadav
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sayali G. Jagtap
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
| | - Santosh B. Mhaske
- Division of Organic Chemistry, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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9
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González-Lainez M, Jiménez MV, Azpiroz R, Passarelli V, Modrego FJ, Pérez-Torrente JJ. N-Methylation of Amines with Methanol Catalyzed by Iridium(I) Complexes Bearing an N,O-Functionalized NHC Ligand. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miguel González-Lainez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | - M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | - Ramón Azpiroz
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | - F. Javier Modrego
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
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10
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An Efficient One-pot Synthesis of Certain Stereoselective Spiro[pyrazole-4,5′-isoxazoline]-5-one Derivatives: In vitro Evaluation of Antitumor Activities, Molecular Docking and In silico ADME Predictions. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-1408-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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11
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C-Heterogenized Re Nanoparticles as Effective Catalysts for the Reduction of 4-Nitrophenol and Oxidation of 1-Phenylethanol. Catalysts 2022. [DOI: 10.3390/catal12030285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Rhenium nanoparticles (Re NPs) supported on Norit (activated carbon—C) and graphene (G) were prepared by a solvothermal method under microwave irradiation (MW). The synthesised heterogeneous catalysts were characterised and tested as reduction and oxidation catalysts, highlighting their dual catalytic behaviour. In the first case, they were used, for the first time, to reduce 4-nitrophenol, in aqueous medium, under MW irradiation. Re catalysts were easily recovered by centrifugation and recycled up to six times without significant activity loss. However, the same Re catalysts in MW-assisted oxidation of 1-phenylethanol with no added solvent experienced a significant loss of activity when recycled. The higher activity of the rhenium nanoparticles supported on graphene (Re/G) catalyst in both reactions was assigned to the higher dispersion and smaller particle size of Re NPs when graphene is the support.
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12
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Chahkamali FO, Sobhani S, Sansano JM. A novel base-metal multifunctional catalyst for the synthesis of 2-amino-3-cyano-4H-chromenes by a multicomponent tandem oxidation process. Sci Rep 2022; 12:2867. [PMID: 35190576 PMCID: PMC8861043 DOI: 10.1038/s41598-022-06759-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/01/2022] [Indexed: 12/24/2022] Open
Abstract
A novel base-metal multifunctional nanomagnetic catalyst is prepared by the immobilization of tungstate anions onto γ-Fe2O3 supported with imidazolium moieties. The (γ-Fe2O3-Im-Py)2WO4 was fully characterized using FT-IR, XPS, TEM, FESEM, ICP, TGA, VSM and XRD and used as a multifunctional heterogeneous catalyst for the synthesis of 2-amino-3-cyano-4H-chromenes via a multicomponent tandem oxidation process starting from alcohols under solvent-free conditions. During this process, tungstate catalyzes the oxidation of a wide range of alcohols in the presence of TBHP as a clean source. The in-situ formed aldehydes are condensed with malononitrile and β-dicarbonyl compounds/naphthols/4-hydroxycumarin through promotion by pyridine and imidazolium moieties of the catalyst. By this method, a variety of 2-amino-3-cyano-4H-chromenes are generated in good to high yields from alcohols as inexpensive and easily available starting materials. The catalyst is recovered easily by the aid of an external magnetic field and reused in five successive runs with insignificant decreasing activity.
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13
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Yadav V, Sivakumar G, Gupta V, Balaraman E. Recent Advances in Liquid Organic Hydrogen Carriers: An Alcohol-Based Hydrogen Economy. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03283] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vinita Yadav
- Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Pune, Maharashtra 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ganesan Sivakumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
| | - Virendrakumar Gupta
- Polymer Synthesis & Catalysis, Reliance Research & Development Centre, Reliance Industries Limited, Ghansoli, Navi Mumbai 400701, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati 517507, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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14
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Yadav V, Balaraman E, Mhaske SB. Phosphine‐Free Manganese(II)‐Catalyst Enables Acceptorless Dehydrogenative Coupling of Alcohols with Indoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100621] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Vinita Yadav
- Division of Organic Chemistry CSIR-National Chemical Laboratory (CSIR-NCL) Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Ekambaram Balaraman
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Tirupati Tirupati 517507 India
| | - Santosh B. Mhaske
- Division of Organic Chemistry CSIR-National Chemical Laboratory (CSIR-NCL) Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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15
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Pandia BK, Gunanathan C. Manganese(I) Catalyzed α-Alkenylation of Amides Using Alcohols with Liberation of Hydrogen and Water. J Org Chem 2021; 86:9994-10005. [PMID: 34254806 DOI: 10.1021/acs.joc.1c00685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein, unprecedented manganese-catalyzed direct α-alkenylation of amides using alcohols is reported. Aryl amides are reacted with diverse primary alcohols, which provided the α,β-unsaturated amides in moderate to good yields with excellent selectivity. Mechanistic studies indicate that Mn(I) catalyst oxidizes the alcohols to their corresponding aldehydes and also plays an important role in efficient C═C bond formation through aldol condensation. This selective olefination is facilitated by metal-ligand cooperation by the aromatization-dearomatization process operating in the catalytic system. Biorenewable alcohols are used as alkenylation reagents for the challenging α-alkenylation of amides with the highly abundant base metal manganese as a catalyst, which results in water and dihydrogen as the only byproduct, making this catalytic transformation attractive, sustainable, and environmentally benign.
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Affiliation(s)
- Biplab Keshari Pandia
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute, Bhubaneswar-752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, Homi Bhabha National Institute, Bhubaneswar-752050, India
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16
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Panigrahi A, Sharanappa Sherikar M, Ramaiah Prabhu K. ZnBr
2
Mediated C−N Bond Formation using Cinnamyl Alcohol and 2‐Amino Pyridines. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ahwan Panigrahi
- Department of Organic Chemistry Indian Institute of Science 560 012 Bangalore Karnataka India
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17
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Bhattacharyya D, Sarmah BK, Nandi S, Srivastava HK, Das A. Selective Catalytic Synthesis of α-Alkylated Ketones and β-Disubstituted Ketones via Acceptorless Dehydrogenative Cross-Coupling of Alcohols. Org Lett 2021; 23:869-875. [DOI: 10.1021/acs.orglett.0c04098] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Dipanjan Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Bikash Kumar Sarmah
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Sekhar Nandi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Hemant Kumar Srivastava
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research Guwahati, Guwahati 781101, Assam, India
| | - Animesh Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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18
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Shahriari M, Sedigh MA, Mahdavian Y, Mahdigholizad S, Pirhayati M, Karmakar B, Veisi H. In situ supported Pd NPs on biodegradable chitosan/agarose modified magnetic nanoparticles as an effective catalyst for the ultrasound assisted oxidation of alcohols and activities against human breast cancer. Int J Biol Macromol 2021; 172:55-65. [PMID: 33444653 DOI: 10.1016/j.ijbiomac.2021.01.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/30/2020] [Accepted: 01/06/2021] [Indexed: 02/07/2023]
Abstract
In this content, a green approach for the ultrasound promoted in situ immobilization of Pd NPs over biodegradable chitosan/agarose modified ferrite NP (Fe3O4@CS-Agarose/Pd) is developed. The structural and physicochemical features of the material were estimated using advanced analytical techniques like FT-IR, ICP-OES, FESEM, EDS, XRD, TEM and VSM. The magnetic material was catalytically explored in the oxidation of alcohols under ultrasonic waves. Sonication had a significant role in enhancing the catalytic performance in the alcohol's oxidation as compared to conventional heating. The heterogeneous nanocatalyst was efficiently recycled up to 10 times with nominal loss in catalytic activity. Towards the biological applications, the Fe3O4@CS-Agarose/Pd nanocomposite showed high antioxidant activities against DPPH free radicals, comparable to standard butylated hydroxytoluene (BHT). In addition, it exhibited excellent cytotoxicity in terms of % cell viability against breast adenocarcinoma (MCF7), breast carcinoma (Hs 578Bst), infiltrating ductal cell carcinoma (Hs 319.T), and metastatic carcinoma (MDA-MB-453) cell lines. The best anti-breast cancer potential of the nanocomposite was observed in Hs 319.T cell line.
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Affiliation(s)
- Marjan Shahriari
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Alihosseini Sedigh
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Yasamin Mahdavian
- Department of Applied Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Mozhgan Pirhayati
- Department of Applied Chemistry, Faculty of Science, Malayer University, Malayer, Iran
| | | | - Hojat Veisi
- Department of Chemistry, Payame Noor University, Tehran, Iran.
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19
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Wu YL, Yang RR, Yang GP, Yan YT, Su XL, He XH, Song YY, Ma ZS, Wang YY. A new porous Co( ii)-metal–organic framework for high sorption selectivity and affinity to CO 2 and efficient catalytic oxidation of benzyl alcohols to benzaldehydes. CrystEngComm 2021. [DOI: 10.1039/d1ce00250c] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new porous Co(ii)-MOF I has been prepared. Gas sorption and catalytic experiments show that the guest-free sample I′ shows the high capacity and selectivity to CO2 over CH4 and catalytically oxidize benzyl alcohols efficiently into benzaldehydes.
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Affiliation(s)
- Yun-Long Wu
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
| | - Rong-Rong Yang
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Guo-Ping Yang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- Shaanxi Key Laboratory of Physico-Inorganic Chemistry
- College of Chemistry & Materials Science, and
- School of Chemical Engineering
- Northwest University
| | - Yang-Tian Yan
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Xiao-Lei Su
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Xin-Hai He
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Yan-Yan Song
- School of Materials Science & Engineering
- Xi'an Polytechnic University
- Xi'an 710048
- P. R. China
| | - Zheng-Sheng Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- Shaanxi Key Laboratory of Physico-Inorganic Chemistry
- College of Chemistry & Materials Science, and
- School of Chemical Engineering
- Northwest University
| | - Yao-Yu Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- Shaanxi Key Laboratory of Physico-Inorganic Chemistry
- College of Chemistry & Materials Science, and
- School of Chemical Engineering
- Northwest University
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20
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Frija LM, Fernandes AL, Cristiano MLS, Pombeiro AJ. Solvent-free oxidation of benzyl alcohols catalysed by a tetrazole-saccharinate Zn(II) complex under microwave radiation: The role of the ligand and the reaction mechanism. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128831] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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21
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Thiyagarajan S, Vijaya Sankar R, Gunanathan C. Ruthenium-Catalyzed α-Alkylation of Ketones Using Secondary Alcohols to β-Disubstituted Ketones. Org Lett 2020; 22:7879-7884. [PMID: 33001653 DOI: 10.1021/acs.orglett.0c02787] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An assortment of aromatic ketones was successfully functionalized with a variety of unactivated secondary alcohols that serve as alkylating agents, providing β-disubstituted ketone products in good to excellent yields. Remarkably, challenging substrates such as simple acetophenone derivatives are effectively alkylated under this ruthenium catalysis. The substituted cyclohexanol compounds displayed product-induced diastereoselectivity. Mechanistic studies indicate the involvement of the hydrogen-borrowing pathway in these alkylation reactions. Notably, this selective and catalytic C-C bond-forming reaction requires only a minimal load of catalyst and base and produces H2O as the only byproduct, making this protocol attractive and environmentally benign.
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Affiliation(s)
- Subramanian Thiyagarajan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, India
| | - Raman Vijaya Sankar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, India
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22
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Atomically precise palladium nanocluster catalyzed tandem oxidation processes of alcohols and phosphorous ylides: Facile access to α,β-unsaturated esters. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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23
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Phillips AMF, Pombeiro AJL. Electrochemical asymmetric synthesis of biologically active substances. Org Biomol Chem 2020; 18:7026-7055. [PMID: 32909570 DOI: 10.1039/d0ob01425g] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Electrically driven oxidation and reduction reactions are well-established methods for synthesis even in the chemical industry, but asymmetric versions are still few. The mild conditions used, atom efficiency and low cost make these reactions a very attractive alternative to other methods of synthesis. Very fine tuning can be achieved based on minute changes in potentials, allowing only one functional group in a molecule to react in the presence of several others, which is ideal for applications in total synthesis. In this review, the literature in the field of asymmetric synthesis of biologically active substances over the last 10 years is surveyed.
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Affiliation(s)
- Ana Maria Faisca Phillips
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001, Lisboa, Portugal.
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24
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Thiyagarajan S, Gunanathan C. Direct Catalytic Symmetrical, Unsymmetrical N,N-Dialkylation and Cyclization of Acylhydrazides Using Alcohols. Org Lett 2020; 22:6617-6622. [PMID: 32806177 DOI: 10.1021/acs.orglett.0c02369] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, direct N,N-dialkylation of acylhydrazides using alcohols is reported. This catalytic protocol provides one-pot synthesis of both symmetrical and unsymmetrical N,N-disubstituted acylhydrazides using an assortment of primary and secondary alcohols with remarkable selectivity and excellent yields. Interestingly, the use of diols resulted in intermolecular cyclization of acylhydrazides, and such products are privileged structures in biologically active compounds. Water is the only byproduct, which makes this catalytic protocol sustainable and environmentally benign.
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Affiliation(s)
- Subramanian Thiyagarajan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, India
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25
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Chakraborty P, Garg N, Manoury E, Poli R, Sundararaju B. C-Alkylation of Various Carbonucleophiles with Secondary Alcohols under CoIII-Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01728] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Priyanka Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
| | - Nidhi Garg
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
| | - Eric Manoury
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077 Toulouse Cedex 4, France
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077 Toulouse Cedex 4, France
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016 Kanpur, Uttar Pradesh, India
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26
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Kaźmierczak K, Pinel C, Loridant S, Besson M, Michel C, Perret N. Supported Cobalt Catalysts for Acceptorless Alcohol Dehydrogenation. Chempluschem 2020; 85:1315-1324. [PMID: 32567812 DOI: 10.1002/cplu.202000359] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/29/2020] [Indexed: 11/07/2022]
Abstract
The acceptor-less dehydrogenation of 2-octanol was tested over cobalt supported on Al2 O3 , C, ZnO, ZrO2 and various TiO2 substrates. The catalysts were characterized by ICP, XRD and TGA-H2 . For Co/TiO2 P25, the effects of passivation, aging (storage at room temperature), and in situ activation under H2 were investigated. The catalysts must be tested shortly after synthesis in order to prevent deactivation. Cobalt supported on TiO2 P25 was the most active and 69 % yield of 2-octanone was obtained, using decane as a solvent. Selectivities for 2-octanone were observed in the range of 90 % to 99.9 %. Small amounts of C16 compounds were also formed due to aldol condensation/dehydration reactions. The catalysts exhibited higher conversion in the dehydrogenation of secondary alcohols (65-69 %), in comparison to primary alcohols (2-10 %). The dehydrogenation of 1,2-octanediol led to 1-hydroxy-2-octanone, with a selectivity of 90 % and 69 % for Co/TiO2 P25 and Co/TiO2 P90, respectively.
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Affiliation(s)
- Kamila Kaźmierczak
- IRCELYON, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, 69626, Villeurbanne, France
- Laboratoire de Chimie, Univ Lyon, ENS de Lyon CNRS, Université Claude Bernard Lyon 1, 46 Allée d'Italie, 69342, Lyon, France
| | - Catherine Pinel
- IRCELYON, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, 69626, Villeurbanne, France
| | - Stéphane Loridant
- IRCELYON, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, 69626, Villeurbanne, France
| | - Michèle Besson
- IRCELYON, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, 69626, Villeurbanne, France
| | - Carine Michel
- Laboratoire de Chimie, Univ Lyon, ENS de Lyon CNRS, Université Claude Bernard Lyon 1, 46 Allée d'Italie, 69342, Lyon, France
| | - Noémie Perret
- IRCELYON, Univ Lyon, Université Claude Bernard Lyon 1, CNRS, 69626, Villeurbanne, France
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27
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Synthesis, Structures, Electrochemistry, and Catalytic Activity towards Cyclohexanol Oxidation of Mono-, Di-, and Polynuclear Iron(III) Complexes with 3-Amino-2-Pyrazinecarboxylate. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10082692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The synthesis and characterization of a set of iron(III) complexes, viz. the mononuclear [Fe(L)3] (1) and [NHEt3][Fe(L)2(Cl)2] (2), the dinuclear methoxido-bridged [Fe(L)2(μ-OMe)]2.DMF.1.5MeOH (3), and the heteronuclear Fe(III)/Na(I) two-dimensional coordination polymer [Fe(N3)(μ-L)2(μ-O)1/2(Na)(μ-H2O)1/2]n (4), are reported. Reactions of 3-amino-2-pyrazinecarboxylic acid (HL) with iron(III) chloride under different reaction conditions were studied, and the obtained compounds were characterized by elemental analysis, Fourier Transform Infrared (FT-IR) spectroscopy, and X-ray single-crystal diffraction. Compound 1 is a neutral mononuclear complex, whereas 2 is mono-anionic with its charge being neutralized by triethylammonium cation. Compounds 3 and 4 display a di-methoxido-bridged dinuclear complex and a two-dimensional heterometallic Fe(III)/Na(I) polynuclear coordination polymer, respectively. Compounds 3 and 4 are the first examples of methoxido- and oxido-bridged iron(III) complexes, respectively, with 3-amino-2-pyrazinecarboxylate ligands. The electrochemical study of these compounds reveals a facile single-electron reversible Fe(III)-to-Fe(II) reduction at a positive potential of 0.08V vs. saturated calomel electrode (SCE), which is in line with their ability to act as efficient oxidants and heterogeneous catalysts for the solvent-free microwave-assisted peroxidative oxidation (with tert-butyl hydroperoxide) of cyclohexanol to cyclohexanone (almost quantitative yields after 1 h). Moreover, the catalysts are easily recovered and reused for five consecutive cycles, maintaining a high activity and selectivity.
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28
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Soliman MMA, Kopylovich MN, Alegria ECBA, Ribeiro APC, M. Ferraria A, M. Botelho do Rego A, Correia LMM, Saraiva MS, Pombeiro AJL. Ultrasound and Radiation-Induced Catalytic Oxidation of 1-Phenylethanol to Acetophenone with Iron-Containing Particulate Catalysts. Molecules 2020; 25:molecules25030740. [PMID: 32046303 PMCID: PMC7038031 DOI: 10.3390/molecules25030740] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/05/2020] [Accepted: 02/06/2020] [Indexed: 11/26/2022] Open
Abstract
Iron-containing particulate catalysts of 0.1–1 µm size were prepared by wet and ball-milling procedures from common salts and characterized by FTIR, TGA, UV-Vis, PXRD, FEG-SEM, and XPS analyses. It was found that when the wet method was used, semi-spherical magnetic nanoparticles were formed, whereas the mechanochemical method resulted in the formation of nonmagnetic microscale needles and rectangles. Catalytic activity of the prepared materials in the oxidation of 1-phenylethanol to acetophenone was assessed under conventional heating, microwave (MW) irradiation, ultrasound (US), and oscillating magnetic field of high frequency (induction heating). In general, the catalysts obtained by wet methods exhibit lower activities, whereas the materials prepared by ball milling afford better acetophenone yields (up to 83%). A significant increase in yield (up to 4 times) was observed under the induction heating if compared to conventional heating. The study demonstrated that MW, US irradiations, and induction heating may have great potential as alternative ways to activate the catalytic system for alcohol oxidation. The possibility of the synthesized material to be magnetically recoverable has been also verified.
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Affiliation(s)
- Mohamed M. A. Soliman
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
| | - Maximilian N. Kopylovich
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Elisabete C. B. A. Alegria
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Área Departamental de Engenharia Química, ISEL, Instituto Politécnico de Lisboa, 1959-007 Lisboa, Portugal;
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Ana P. C. Ribeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
- Correspondence: (M.N.K.); (E.C.B.A.A.); (A.P.C.R.); Tel.: +351-218-317-163 (E.C.B.A.A.)
| | - Ana M. Ferraria
- BSIRG, IBB-Institute for Bioengineering and Biosciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (A.M.F.); (A.M.B.d.R.)
| | - Ana M. Botelho do Rego
- BSIRG, IBB-Institute for Bioengineering and Biosciences, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (A.M.F.); (A.M.B.d.R.)
| | - Luís M. M. Correia
- Área Departamental de Engenharia Química, ISEL, Instituto Politécnico de Lisboa, 1959-007 Lisboa, Portugal;
| | - Marta S. Saraiva
- Centro de Química e Bioquímica, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal;
- BioISI-Biosystems & Integrative Sciences Institute, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1049-001 Lisboa, Portugal
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; (M.M.A.S.); (A.J.L.P.)
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29
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Yadav V, Landge VG, Subaramanian M, Balaraman E. Manganese-Catalyzed α-Olefination of Nitriles with Secondary Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02811] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vinita Yadav
- Organic Chemistry Division, CSIR—National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune − 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad − 201002, India
| | - Vinod G. Landge
- Organic Chemistry Division, CSIR—National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune − 411008, India
| | - Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
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30
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Chakraborty P, Gangwar MK, Emayavaramban B, Manoury E, Poli R, Sundararaju B. α-Alkylation of Ketones with Secondary Alcohols Catalyzed by Well-Defined Cp*Co III -Complexes. CHEMSUSCHEM 2019; 12:3463-3467. [PMID: 31240858 DOI: 10.1002/cssc.201900990] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/10/2019] [Indexed: 05/20/2023]
Abstract
Although α-alkylation of ketones with primary alcohols by transition-metal catalysis is well-known, the same process with secondary alcohols is arduous and complicated by self-condensation. Herein a well-defined, high-valence cobalt(III)-catalyst was applied for successful α-alkylation of ketones with secondary alcohols. A wide-variety of secondary alcohols, which include cyclic, acyclic, symmetrical, and unsymmetrical compounds, was employed as alkylating agents to produce β-alkyl aryl ketones.
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Affiliation(s)
- Priyanka Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
| | - Manoj Kumar Gangwar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
| | - Balakumar Emayavaramban
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
| | - Eric Manoury
- Fine CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077, Toulouse Cedex 4, France
| | - Rinaldo Poli
- Fine CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, F-31077, Toulouse Cedex 4, France
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
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31
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Gawali S, Pandia BK, Pal S, Gunanathan C. Manganese(I)-Catalyzed Cross-Coupling of Ketones and Secondary Alcohols with Primary Alcohols. ACS OMEGA 2019; 4:10741-10754. [PMID: 31460172 PMCID: PMC6648503 DOI: 10.1021/acsomega.9b01246] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/06/2019] [Indexed: 05/09/2023]
Abstract
Catalytic cross-coupling of ketones and secondary alcohols with primary alcohols is reported. An abundant manganese-based pincer catalyst catalyzes the reactions. Low loading of catalyst (2 mol %) and catalytic use of a mild base (5-10 mol %) are sufficient for efficient cross-coupling. Various aryl and heteroaryl ketones are catalytically cross-coupled with primary alcohols to provide the selective α-alkylated products. Challenging α-ethylation of ketones is also attained using ethanol as an alkylating reagent. Further, direct use of secondary alcohols in the reaction results in in situ oxidation to provide the ketone intermediates, which undergo selective α-alkylation. The reaction proceeds via the borrowing hydrogen pathway. The catalyst oxidizes the primary alcohols to aldehydes, which undergo subsequent aldol condensation with ketones, promoted by catalytic amount of Cs2CO3, to provide the α,β-unsaturated ketone intermediates. The hydrogen liberated from oxidation of alcohols is used for hydrogenation of α,β-unsaturated ketone intermediates. Notably either water or water and dihydrogen are the only byproducts in these environmentally benign catalytic processes. Mechanistic studies allowed inferring all of the intermediates involved. Dearomatization-aromatization metal-ligand cooperation in the catalyst facilitates the facile O-H bond activation of both primary and secondary alcohols, and the resultant manganese alkoxide complexes produce corresponding carbonyl compounds, perhaps via β-hydride elimination. The manganese(I) hydride intermediate plays dual role as it hydrogenates α,β-unsaturated ketones and liberates molecular hydrogen to regenerate the catalytically active dearomatized intermediate. Metal-ligand cooperation allows all of the manganese intermediates to exist in same oxidation state (+1) and plays an important role in these catalytic cross-coupling reactions.
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32
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Direct electrochemical oxidation of alcohols with hydrogen evolution in continuous-flow reactor. Nat Commun 2019; 10:2796. [PMID: 31243290 PMCID: PMC6594969 DOI: 10.1038/s41467-019-10928-0] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 06/06/2019] [Indexed: 01/10/2023] Open
Abstract
Alcohol oxidation reactions are widely used for the preparation of aldehydes and ketones. The electrolysis of alcohols to carbonyl compounds have been underutilized owing to low efficiency. Herein, we report an electrochemical oxidation of various alcohols in a continuous-flow reactor without external oxidants, base or mediators. The robust electrochemical oxidation is performed for a variety of alcohols with good functional group tolerance, high efficiency and atom economy, whereas mechanistic studies support the benzylic radical intermediate formation and hydrogen evolution. The electrochemical oxidation proves viable on diols with excellent levels of selectivity for the benzylic position.
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33
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Bao H, Zhou B, Jin H, Liu Y. Copper-catalyzed three-component reaction of N-heteroaryl aldehydes, nitriles, and water. Org Biomol Chem 2019; 17:5021-5028. [PMID: 31044206 DOI: 10.1039/c9ob00599d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
An efficient and straightforward method for the synthesis of N-heteroaroyl imides has been successfully developed involving a copper-catalyzed radical-triggered three-component reaction of N-heteroaryl aldehydes, nitriles, and water. Mechanistic studies indicate that the reaction may undergo a radical-triggered Ritter-type reaction in which water serves as the oxygen source for the formation of the C-O bond. The reaction has advantages such as a broad substrate scope for the N-heteroaryl aldehydes, atom economy, and simple operation.
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Affiliation(s)
- Hanyang Bao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Bingwei Zhou
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Hongwei Jin
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
| | - Yunkui Liu
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
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34
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Gawali SS, Pandia BK, Gunanathan C. Manganese(I)-Catalyzed α-Alkenylation of Ketones Using Primary Alcohols. Org Lett 2019; 21:3842-3847. [DOI: 10.1021/acs.orglett.9b01327] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Suhas Shahaji Gawali
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar-752050, India
| | - Biplab Keshari Pandia
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar-752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar-752050, India
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35
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Kishore J, Thiyagarajan S, Gunanathan C. Ruthenium(ii)-catalysed direct synthesis of ketazines using secondary alcohols. Chem Commun (Camb) 2019; 55:4542-4545. [PMID: 30924827 DOI: 10.1039/c9cc01383k] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct one-pot synthesis of ketazines from secondary alcohols and hydrazine hydrate catalyzed by a ruthenium pincer complex is reported, which proceeds through O-H bond activation of secondary alcohols via amine-amide metal-ligand cooperation in the catalyst. Remarkably, liberated molecular hydrogen and water are the only byproducts.
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Affiliation(s)
- Jugal Kishore
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, Khurda-752050, India.
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36
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Thiyagarajan S, Gunanathan C. Catalytic Cross-Coupling of Secondary Alcohols. J Am Chem Soc 2019; 141:3822-3827. [DOI: 10.1021/jacs.9b00025] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Subramanian Thiyagarajan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar-752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar-752050, India
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37
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Ferretti F, Ribeiro APC, Alegria ECBA, Ferraria AM, Kopylovich MN, Guedes da Silva MFC, Marchetti F, Pombeiro AJL. Synergistic catalytic action of vanadia–titania composites towards the microwave-assisted benzoin oxidation. Dalton Trans 2019; 48:3198-3203. [DOI: 10.1039/c8dt04274h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Application of synergistic effects is among the main ways to boost chemical efficiency.
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Affiliation(s)
- Francesco Ferretti
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | - Ana P. C. Ribeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | | | - Ana M. Ferraria
- CQFM-Centro de Química-Física Molecular and IN and IBB-Institute for Bioengineering and Biosciences
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
- Universidade de Lisboa
| | - Maximilian N. Kopylovich
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
| | | | - Fabio Marchetti
- School of Science and Technology
- Chemistry Section
- University of Camerino
- 62032 Camerino
- Italy
| | - Armando J. L. Pombeiro
- Centro de Química Estrutural
- Complexo I
- Instituto Superior Técnico
- Av. Rovisco Pais 1
- 1049-001 Lisboa
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38
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Tomer SO, Soni HP. Fe 3O 4@ l-Proline/Pd nanocomposite for one-pot tandem catalytic synthesis of (±)-warfarin from benzyl alcohol: synergistic action of organocatalyst and transition metal catalyst. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01497g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot synthesis of (±)-warfarin from scratch! The reported catalytic nanocomposite can carry out 3-way catalysis, namely, oxidation, aldol condensation and Michael addition, in a tandem fashion in PEG-400 and water as 'green' reaction media.
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Affiliation(s)
- Sanjiv O. Tomer
- Department of Chemistry
- Faculty of Science
- The Maharaja Sayajirao University of Baroda
- Vadodara-390 002
- India
| | - Hemant P. Soni
- Department of Chemistry
- Faculty of Science
- The Maharaja Sayajirao University of Baroda
- Vadodara-390 002
- India
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39
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Vernekar D, Ratha S, Rode C, Jagadeesan D. Efficient bifunctional reactivity of K-doped CrO(OH) nanosheets: exploiting the combined role of Cr(iii) and surface –OH groups in tandem catalysis. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02345j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Layered K-α-CrO(OH) nanosheets as a non-noble metal based tandem catalyst for sequential oxidation and coupling/condensation reactions.
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Affiliation(s)
- Dnyanesh Vernekar
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research (ACSIR)
| | - Satyajit Ratha
- School of Basic Sciences
- Indian Institute of Technology
- Bhubaneswar
- India
| | - Chandrashekhar Rode
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research (ACSIR)
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40
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Davies T, Taylor SH, Graham AE. Nanoporous Aluminosilicate-Catalyzed Telescoped Acetalization-Direct Aldol Reactions of Acetals with 1,3-Dicarbonyl Compounds. ACS OMEGA 2018; 3:15482-15491. [PMID: 31458204 PMCID: PMC6644119 DOI: 10.1021/acsomega.8b02047] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/01/2018] [Indexed: 05/11/2023]
Abstract
Nanoporous aluminosilicate materials, synthesized by an evaporation-induced self-assembly process, catalyze the direct aldol reaction of acyclic acetals with a range of 1,3-dicarbonyl compounds to produce the corresponding aldol addition products in high yield, rather than the expected Knoevenagel elimination products. By carrying out the reaction in the presence of either dimethoxy propane or the corresponding orthoester, it is possible to capitalize on the ability of these aluminosilicate materials to catalyze the corresponding acetalization reaction leading to the development of novel telescoped, acetalization-direct aldol addition reaction protocols.
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Affiliation(s)
- Thomas
Edward Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Stuart Hamilton Taylor
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building,
Park Place, Cardiff CF10 3AT, U.K.
| | - Andrew Edward Graham
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, U.K.
- E-mail:
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41
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Wei D, Sadek O, Dorcet V, Roisnel T, Darcel C, Gras E, Clot E, Sortais JB. Selective mono N-methylation of anilines with methanol catalyzed by rhenium complexes: An experimental and theoretical study. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Development of efficient one-pot three-component assembly of trityl olmesartan medoxomil. Bioorg Med Chem 2018; 26:4348-4359. [PMID: 30006144 DOI: 10.1016/j.bmc.2018.06.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/22/2018] [Accepted: 06/26/2018] [Indexed: 01/26/2023]
Abstract
We have elaborated a one-pot three-component assembly of trityl olmesartan medoxomil starting from commercially available ethyl 4-(2-hydroxypropan-2-yl)-2-propyl-1H-imidazole-5-carboxylate, 5-(4'-(bromomethyl)-[1,1'-biphenyl]-2-yl)-1-trityl-1H-tetrazole and 4-(chloromethyl)-5-methyl-1,3-dioxol-2-one intermediates. The developed and optimized one-pot process provides 72-75% yield of trityl olmesartan medoxomil over three steps, which represents in average ca. 90% yield per synthetic step, on a 300 g scale. The process is conducted in simple fashion and provides highly pure trityl olmesartan medoxomil (up to 97.5% by HPLC), which can be easily converted to olmesartan medoxomil that fully complies with all ICH requirements. Furthermore, the described process significantly improves the primary process to trityl olmesartan medoxomil by drastic reduction of required unit operations and application of single reaction solvent through the reaction sequence. Moreover, the amount of used organic solvents was notably reduced. The developed process has provided solid bases for industrial production of trityl olmesartan medoxomil.
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43
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Siddaraju Y, Prabhu KR. Iodine-Catalyzed Chemoselective C–N Bond-Forming Reactions Using Benzylic or Cinnamyl Alcohols with Heterocyclic Thiols and Thiones. J Org Chem 2018; 83:11145-11153. [DOI: 10.1021/acs.joc.8b01745] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yogesh Siddaraju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, Karnataka, India
| | - Kandikere Ramaiah Prabhu
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560 012, Karnataka, India
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44
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Preger Y, Root TW, Stahl SS. Platinum-Based Heterogeneous Catalysts for Nitrile Synthesis via Aerobic Oxidative Coupling of Alcohols and Ammonia. ACS OMEGA 2018; 3:6091-6096. [PMID: 31458796 PMCID: PMC6644636 DOI: 10.1021/acsomega.8b00911] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/21/2018] [Indexed: 06/10/2023]
Abstract
Transition-metal-catalyzed aerobic oxidative coupling of alcohols and ammonia represents an attractive atom-economical synthetic route to prepare nitriles. Heterogeneous platinum catalysts have been widely used for aerobic alcohol oxidation to aldehydes and carboxylic acids but have not been applied to nitrile synthesis. In this work, we show that carbon-supported Pt catalysts are effective for this transformation. Unpromoted Pt is competent with benzylic substrates bearing either electron-donating or electron-withdrawing substituents. Use of both K2CO3 and Bi additives accelerates the rate of alcohol oxidation and affords high yields with challenging heterocyclic alcohols.
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Affiliation(s)
- Yuliya Preger
- Department
of Chemical and Biological Engineering, University of Wisconsin—Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Thatcher W. Root
- Department
of Chemical and Biological Engineering, University of Wisconsin—Madison, 1415 Engineering Drive, Madison, Wisconsin 53706, United States
| | - Shannon S. Stahl
- Department
of Chemistry, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
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45
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Targel T, Ramesh P, Portnoy M. Domino Two-Step Oxidation of β-Alkoxy Alcohols to Hemiacetal Esters: Linking a Stoichiometric Step to an Organocatalytic Step with a Common Organic Oxidant. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Tom Targel
- School of Chemistry; Tel Aviv University; 6997801 Tel Aviv Israel
| | - Palakuri Ramesh
- School of Chemistry; Tel Aviv University; 6997801 Tel Aviv Israel
| | - Moshe Portnoy
- School of Chemistry; Tel Aviv University; 6997801 Tel Aviv Israel
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46
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Cao XN, Wan XM, Yang FL, Li K, Hao XQ, Shao T, Zhu X, Song MP. NNN Pincer Ru(II)-Complex-Catalyzed α-Alkylation of Ketones with Alcohols. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00013] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Xiao-Niu Cao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xiao-Min Wan
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Fa-Liu Yang
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Ke Li
- Shandong Qiaochang Modern Agriculture Co., Ltd, No. 1181 Huanghe 12 Road, Binzhou, Shandong 256600, P. R. China
| | - Xin-Qi Hao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Tian Shao
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry and Molecular Engineering, School of Life Sciences, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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47
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Kumar GS, Singh D, Kumar M, Kapur M. Palladium-Catalyzed Aerobic Oxidative Coupling of Allylic Alcohols with Anilines in the Synthesis of Nitrogen Heterocycles. J Org Chem 2018. [DOI: 10.1021/acs.joc.8b00287] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Gangam Srikanth Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Diksha Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manish Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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48
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Affiliation(s)
- Ronghua Jin
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key, Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd Shanghai P.R. China
| | - Dongsong Zheng
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key, Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd Shanghai P.R. China
| | - Rui Liu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key, Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd Shanghai P.R. China
| | - Guohua Liu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key, Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd Shanghai P.R. China
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49
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Thiyagarajan S, Gunanathan C. Ruthenium-Catalyzed α-Olefination of Nitriles Using Secondary Alcohols. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04013] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Subramanian Thiyagarajan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar 752050, India
| | - Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar 752050, India
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50
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