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Bhatt N, Tyagi A, Purohit S, Kumar A. Click Chemistry for the Generation of Combination of Triazole Core and Thioether Donor Site in Organosulfur Ligands: Applications of Metal Complexes in Catalysis. Chem Asian J 2024; 19:e202400379. [PMID: 39276029 DOI: 10.1002/asia.202400379] [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: 04/04/2024] [Revised: 06/30/2024] [Indexed: 09/16/2024]
Abstract
During the last two decades, organosulfur compounds have been used in the field of transition metal catalysis. Some of such compounds are known for their ability to withstand their exposure to air and moisture. These compounds are very important ligands. They may be obtained using simple and smooth modular synthetic protocols which include nucleophilic substitution reactions. The development of click chemistry represents a new era of innovation. It is a lighthouse of reliable and efficient reactions. In recent past, click chemistry has also been applied for the synthesis of such organosulfur ligands specifically suited for the dynamic field of transition metal catalysis. In order to synthesize novel compounds containing sulfur and triazole ring, click chemistry is an advantageous methodology over other approaches. This article covers the general features and uses of this methodology for the development of catalytically active organosulfur compounds. The significant advances in the design of transition metal catalytic systems utilizing such ligands, their use in the catalysis of many chemical transformations are also covered in this article. Effort has also been made to present a comparative overview of the performances of such catalysts vis-à-vis the catalysts designed commonly used ligands. Catalytic performances have been discussed thoroughly in order to identify the impact of ligand architecture on efficacy of the catalyst. Effect of reaction conditions (such as time, temperature etc.) and mechanistic aspects have also been rationalized.
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Affiliation(s)
- Neeraj Bhatt
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India
| | - Anupma Tyagi
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India
| | - Suraj Purohit
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India
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2
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Ahmad MG, Balamurali MM, Chanda K. Click-derived multifunctional metal complexes for diverse applications. Chem Soc Rev 2023; 52:5051-5087. [PMID: 37431583 DOI: 10.1039/d3cs00343d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2023]
Abstract
The Click reaction that involves Cu(I)-catalyzed azide-alkyne cycloaddition (CuAAC) serves as the most potent and highly dependable tool for the development of many complex architectures. It has paved the way for the synthesis of numerous drug molecules with enhanced synthetic flexibility, reliability, specificity and modularity. It is all about bringing two different molecular entities together to achieve the required molecular properties. The utilization of Click chemistry has been well demonstrated in organic synthesis, particularly in reactions that involve biocompatible precursors. In pharmaceutical research, Click chemistry is extensively utilized for drug delivery applications. The exhibited bio-compatibility and dormancy towards other biological components under cellular environments makes Click chemistry an identified boon in bio-medical research. In this review, various click-derived transition metal complexes are discussed in terms of their applications and uniqueness. The scope of this chemistry towards other streams of applied sciences is also discussed.
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Affiliation(s)
- Md Gulzar Ahmad
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India.
| | - M M Balamurali
- Chemistry Division, School of Advanced Sciences, Vellore Institute of Technology, Chennai campus, Chennai 600127, Tamilnadu, India.
| | - Kaushik Chanda
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamilnadu, India.
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3
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Kaushal J, Singh S, Nautiyal D, Rao GK, Singh AK, Kumar A. Click chemistry in the synthesis of catalytically relevant organoselenium compounds: development and applications of catalysts for organic synthesis. NEW J CHEM 2022. [DOI: 10.1039/d2nj02364d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Use of click chemistry in synthesizing organoselenium compounds and the applications of metal complexes of such compounds as catalysts for various chemical transformations have been critically analyzed.
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Affiliation(s)
- Jolly Kaushal
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Siddhant Singh
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Divyanshu Nautiyal
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
| | - Gyandshwar Kumar Rao
- Department of Chemistry, Biochemistry and Forensic Science, Amity School of Applied Sciences, Amity University Haryana, Gurgaon, Haryana 122413, India
| | - Ajai K. Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi, India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences (SoPS), Doon University, Dehradun-248012, Uttarakhand, India
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4
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Joseph M, Swarts A, Mapolie S. Cationic half-sandwich ruthenium (II) complexes ligated by pyridyl-triazole ligands: Transfer hydrogenation and mechanistic studies. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Böth AD, Sauer MJ, Baratta W, Kühn FE. Abnormal NHC ruthenium catalysts: mechanistic investigations of their preparation and steric influence on catalytic performance. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01036d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Preparation of bis-aNHC Ru catalysts, identification of formation intermediates and application in transfer hydrogenation and Oppenauer-type oxidation, observing an inversion in activity appearing to be dependent on steric hindrance.
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Affiliation(s)
- Alexander D. Böth
- Molecular Catalysis, Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85748 Garching bei München, Germany
| | - Michael J. Sauer
- Molecular Catalysis, Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85748 Garching bei München, Germany
| | - Walter Baratta
- Dipartimento DI4A, Università di Udine, Via Cotonificio 108, 33100 Udine, Italy
| | - Fritz E. Kühn
- Molecular Catalysis, Department of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85748 Garching bei München, Germany
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6
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Rana BK, Roymahapatra G, Das HS, Giri S, Cardoso MH, Franco OL, Nakka KK, Santra MK, Bag PP, Bertolasi V, Dinda J. Pyridine and pyrimidine functionalized half-sandwich Ru(II)-N heterocyclic carbene complexes: Synthesis, structures, spectra, electrochemistry and biological studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Blanco CO, Llovera L, Herrera A, Dorta R, Agrifoglio G, Venuti D, Landaeta VR, Pastrán J. Ruthenium (II) complexes with C- and C-symmetric bis-(+)-camphopyrazole ligands and their evaluation in catalytic transfer hydrogenation of aldehydes. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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8
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Tong KKH, Hanif M, Movassaghi S, Sullivan MP, Lovett JH, Hummitzsch K, Söhnel T, Jamieson SMF, Bhargava SK, Harris HH, Hartinger CG. Triazolyl-Functionalized N-Heterocyclic Carbene Half-Sandwich Compounds: Coordination Mode, Reactivity and in vitro Anticancer Activity. ChemMedChem 2021; 16:3017-3026. [PMID: 34196118 DOI: 10.1002/cmdc.202100311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/16/2021] [Indexed: 12/17/2022]
Abstract
We report investigations on the anticancer activity of organometallic [MII/III (η6 -p-cymene/η5 -pentamethylcyclopentadienyl)] (M=Ru, Os, Rh, and Ir) complexes of N-heterocyclic carbenes (NHCs) substituted with a triazolyl moiety. Depending on the precursors, the NHC ligands displayed either mono- or bidentate coordination via the NHC carbon atom or as N,C-donors. The metal complexes were investigated for their stability in aqueous solution, with the interpretation supported by density functional theory calculations, and reactivity to biomolecules. In vitro cytotoxicity studies suggested that the nature of both the metal center and the lipophilicity of the ligand determine the biological properties of this class of compounds. The IrIII complex 5 d bearing a benzimidazole-derived ligand was the most cytotoxic with an IC50 value of 10 μM against NCI-H460 non-small cell lung carcinoma cells. Cell uptake and distribution studies using X-ray fluorescence microscopy revealed localization of 5 d in the cytoplasm of cancer cells.
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Affiliation(s)
- Kelvin K H Tong
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Maurice Wilkins Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Muhammad Hanif
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Maurice Wilkins Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Sanam Movassaghi
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Matthew P Sullivan
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Maurice Wilkins Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - James H Lovett
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Katja Hummitzsch
- Discipline of Obstetrics and Gynecology, The University of Adelaide, Robinson Research Institute, Adelaide, SA 5005, Australia
| | - Tilo Söhnel
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Stephen M F Jamieson
- Maurice Wilkins Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Suresh K Bhargava
- Centre for Advanced Materials and Industrial Chemistry, School of Science, RMIT University, Melbourne, Australia
| | - Hugh H Harris
- Department of Chemistry, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.,Maurice Wilkins Centre, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
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9
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Preformed molecular complexes of metals with organoselenium ligands: Syntheses and applications in catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213885] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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10
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Rana BK, Roymahapatra G, Das HS, Giri S, Cardoso MH, Franco OL, Kiran N, Santra MK, Bag PP, Bertolasi V, Dinda J. Pyridine and pyrimidine functionalized half-sandwich Ru(II)-N heterocyclic carbene complexes: Synthesis, structures, spectra, electrochemistry and biological studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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11
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Kumar R, Singh VV, Jain N, Singh AK. Fast Transfer Hydrogenation(TH) in Aerobic Condition and Oxidation of Alcohols with
N
‐Methylmorpholine‐
N
‐oxide Catalyzed by Ru(II) Ligated with Chalcogenated Pyridines and PPh
3. ChemistrySelect 2020. [DOI: 10.1002/slct.202002031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rajan Kumar
- Department of ChemistryIndian Institute of Technology Delhi New Delhi 110016 India
| | - Ved Vati Singh
- Department of ChemistryIndian Institute of Technology Delhi New Delhi 110016 India
| | - Nidhi Jain
- Department of ChemistryIndian Institute of Technology Delhi New Delhi 110016 India
| | - Ajai K. Singh
- Department of ChemistryIndian Institute of Technology Delhi New Delhi 110016 India
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12
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Oswal P, Arora A, Singh S, Nautiyal D, Kumar S, Rao GK, Kumar A. Organochalcogen ligands in catalysis of oxidation of alcohols and transfer hydrogenation. Dalton Trans 2020; 49:12503-12529. [PMID: 32804180 DOI: 10.1039/d0dt01201g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organochalcogen compounds have been used as the building blocks for the development of a variety of catalysts that have been studied comprehensively during the last two decades for several chemical transformations. Transfer hydrogenation (reduction of carbonyl compounds to alcohols) and oxidation of alcohols (conversion of alcohols to their respective ketones and aldehydes) are also among such chemical transformations. Some compilations are available in the literature on the development of catalysts, based on organochalcogen ligands, and their applications in Heck reaction, Suzuki reaction, and other related aspects. Some review articles have also been published on different aspects of oxidation of alcohols and transfer hydrogenation. However, no such article is available in the literature on the syntheses and use of organochalcogen ligated catalysts for these two reactions. In this perspective, a survey of developments pertaining to the synthetic aspects of such organochalcogen (S/Se/Te) based catalysts for the two reactions has been made. In addition to covering the syntheses of chalcogen ligands, their metal complexes and nanoparticles (NPs), emphasis has also been placed on the efficient conversion of different substrates during catalytic reactions, diversity in catalytic potential and mechanistic aspects of catalysis. It also includes the analysis of comparison (in terms of efficiency) between this unique class of catalysts and efficient catalysts without a chalcogen donor. The future scope of this area has also been highlighted.
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Affiliation(s)
- Preeti Oswal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Aayushi Arora
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Siddhant Singh
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Divyanshu Nautiyal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Sushil Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
| | - Gyandshwar Kumar Rao
- Department of Chemistry Biochemistry and Forensic Science, Amity School of Applied Sciences, Amity University Haryana, Gurgaon, Haryana 122413, India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, 248012, India.
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13
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Ratnam A, Kumari S, Kumar R, Singh U, Ghosh K. Selective oxidation of benzyl alcohol catalyzed by ruthenium (III) complexes derived from tridentate mer-ligands having phenolato donor. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.120986] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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14
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Radhakrishna L, Kunchur HS, Namdeo PK, Butcher RJ, Balakrishna MS. New 1,2,3-triazole based bis- and trisphosphine ligands: synthesis, transition metal chemistry and catalytic studies. Dalton Trans 2020; 49:3434-3449. [DOI: 10.1039/c9dt04302k] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This paper describes a novel synthetic methodology for the preparation of 1,2,3-triazole based phosphines and their transition metal chemistry and preliminary catalytic studies.
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Affiliation(s)
| | - Harish S. Kunchur
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Pavan K. Namdeo
- Phosphorus Laboratory
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
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15
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Dubey P, Gupta S, Singh AK. Complexes of Pd(II), η6-C6H6Ru(II), and η5-Cp*Rh(III) with Chalcogenated Schiff Bases of Anthracene-9-carbaldehyde and Base-Free Catalytic Transfer Hydrogenation of Aldehydes/Ketones and N-Alkylation of Amines. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00908] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pooja Dubey
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Sonu Gupta
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Ajai K. Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, New Delhi 110016, India
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16
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(η6-Benzene)Ru(II) half-sandwich complexes of pyrazolated chalcogenoethers for catalytic activation of aldehydes to amides transformation. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.09.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Jia WG, Ling S, Zhang HN, Sheng EH, Lee R. Half-Sandwich Ruthenium Phenolate–Oxazoline Complexes: Experimental and Theoretical Studies in Catalytic Transfer Hydrogenation of Nitroarene. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00721] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Wei-Guo Jia
- College
of Chemistry and Materials Science, Center for Nano Science and Technology,
The Key Laboratory of Functional Molecular Solids, Ministry of Education,
Anhui Laboratory of Molecular-Based Materials (State Key Laboratory
Cultivation Base), Anhui Normal University, Wuhu, 241000, China
| | - Shuo Ling
- College
of Chemistry and Materials Science, Center for Nano Science and Technology,
The Key Laboratory of Functional Molecular Solids, Ministry of Education,
Anhui Laboratory of Molecular-Based Materials (State Key Laboratory
Cultivation Base), Anhui Normal University, Wuhu, 241000, China
| | - Hai-Ning Zhang
- College
of Chemistry and Materials Science, Center for Nano Science and Technology,
The Key Laboratory of Functional Molecular Solids, Ministry of Education,
Anhui Laboratory of Molecular-Based Materials (State Key Laboratory
Cultivation Base), Anhui Normal University, Wuhu, 241000, China
| | - En-Hong Sheng
- College
of Chemistry and Materials Science, Center for Nano Science and Technology,
The Key Laboratory of Functional Molecular Solids, Ministry of Education,
Anhui Laboratory of Molecular-Based Materials (State Key Laboratory
Cultivation Base), Anhui Normal University, Wuhu, 241000, China
| | - Richmond Lee
- Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372
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18
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Bhaskar R, Joshi H, Sharma AK, Singh AK. Reusable Catalyst for Transfer Hydrogenation of Aldehydes and Ketones Designed by Anchoring Palladium as Nanoparticles on Graphene Oxide Functionalized with Selenated Amine. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2223-2231. [PMID: 28048937 DOI: 10.1021/acsami.6b10457] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The treatment of graphene oxide with ClCH2COOH, thionyl chloride, and 2-(phenylselenyl)ethylamine successively has resulted in functionalization of its surface with selenated ethylamine molecules which may act as chelating (Se, N) ligands. The graphene oxide grafted with (Se, N) donor sites (GO-Se) on treatment with Na2PdCl4 and NaOH gave GO-Se anchored with Pd(0) nanoparticles (NPs) (GO-Se-Pd). The X-ray diffraction (powder), FT-IR, XPS, Raman spectroscopy, thermogravimetric analysis (TGA), and electron microscopic techniques (SEM and HR-TEM) authenticated the formation of GO-Se-Pd. The distribution of Pd(0) NPs of size ∼1-3 nm on GO-Se was found nearly uniform. The transfer hydrogenation of carbonyl compounds (aldehydes/ketones) with 2-propanol was catalyzed with GO-Se-Pd. The catalyst equivalent to 0.25 mol % of Pd was sufficient to convert aldehydes and ketones to alcohols in good yield (nearly quantitative for some substrates) and found somewhat more efficient for aldehydes than ketones. The reusability of GO-Se-Pd studied for transfer hydrogenation of 4-anisaldehyde to the corresponding alcohol can be understood by ∼96% conversion even in the sixth catalytic run. Flame AAS analysis of GO-Se-Pd revealed negligible leaching of Pd even after the sixth catalytic reaction cycle. Hot filtration experiments suggested the heterogeneous nature of the catalyst.
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Affiliation(s)
- Renu Bhaskar
- Department of Chemistry, Indian Institute of Technology, Delhi , New Delhi - 110016, India
| | - Hemant Joshi
- Department of Chemistry, Indian Institute of Technology, Delhi , New Delhi - 110016, India
| | - Alpesh K Sharma
- Department of Chemistry, Indian Institute of Technology, Delhi , New Delhi - 110016, India
| | - Ajai K Singh
- Department of Chemistry, Indian Institute of Technology, Delhi , New Delhi - 110016, India
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19
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Viji M, Tyagi N, Naithani N, Ramaiah D. Aryl appended neutral and cationic half-sandwich ruthenium(ii)–NHC complexes: synthesis, characterisation and catalytic applications. NEW J CHEM 2017. [DOI: 10.1039/c7nj02822a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aryl appended half-sandwich Ru(ii)–NHC complexes were synthesised and their use as selective catalysts for transfer hydrogenation of aromatic ketones was demonstrated.
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Affiliation(s)
- Mambattakkara Viji
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum 695 019
- India
| | - Nidhi Tyagi
- Photosciences and Photonics
- Chemical Sciences and Technology Division
- CSIR-National Institute for Interdisciplinary Science and Technology
- Trivandrum 695 019
- India
| | - Neeraj Naithani
- Analytical and Spectroscopy Division
- Vikram Sarabhai Space Centre
- Trivandrum 695 022
- India
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20
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Wisener JC, Patton KT, Agbo JK, Mebi CA. Phenylthiolate-diironhexacarbonyl complexes: a comparative conceptual DFT and electrochemical study. TRANSIT METAL CHEM 2016. [DOI: 10.1007/s11243-016-0028-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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Kumar S, Saleem F, Singh AK. ‘Click’ generated 1,2,3-triazole based organosulfur/selenium ligands and their Pd(ii) and Ru(ii) complexes: their synthesis, structure and catalytic applications. Dalton Trans 2016; 45:11445-58. [DOI: 10.1039/c6dt01406b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sonogashira and Suzuki–Miyaura coupling were catalyzed with Pd(ii) complexes (0.001–2 mol%), and transfer hydrogenation (in water–glycerol) was catalyzed with Ru(ii) complexes (≤0.4 mol%).
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Affiliation(s)
- Satyendra Kumar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Fariha Saleem
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi-110016
- India
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