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Wang Y, Xu N, Zhang Y, Zhang T, Zhang Z, Li XH, Wang XL. A Keggin-type polyoxometalate-based metal-organic complex as a highly efficient heterogeneous catalyst for the selective oxidation of alkylbenzenes. Dalton Trans 2022; 51:2331-2337. [PMID: 35043136 DOI: 10.1039/d1dt03823k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The direct oxidation of C-H bonds in organic materials into necessary oxygen-containing compounds under mild conditions has attracted increasing attention. A Keggin-type polyoxometalate-based metal-organic complex (MOC), [CuII4CuI(H2trz)4(C2O4)(H2O)4(H3PW11.18CuII0.82O40)]·8H2O (1) (H3trz = 1,2,4-triazole), was designed and synthesized under hydrothermal conditions, and was structurally characterized by single crystal X-ray diffraction, PXRD, IR spectroscopy, TGA, and XPS. Complex 1 is a 3D 4,6,8-connected architecture derived from [Cu5(H2trz)4(C2O4)2(H2O)2]n units and [PW11.18Cu0.82O40]6- anions, which can catalytically oxidize various types of alkylbenzenes. Gas chromatographic analysis showed that complex 1 as a heterogeneous catalyst could effectively catalyze the oxidation of diphenylmethane with 93% conversion and 99% selectivity within 6 h. In addition, the conversion for the catalytic oxidation of ethylbenzene was 96% with 99% selectivity. Compared with some reported catalysts, complex 1 exhibited a better catalytic effect and lower reaction time. Meanwhile, the catalytic oxidation of other benzyl derivatives with complex 1 was also investigated, which indicated that complex 1 possessed excellent catalytic performance.
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Affiliation(s)
- Yue Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Na Xu
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Yue Zhang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Tong Zhang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Zhong Zhang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Xiao-Hui Li
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
| | - Xiu-Li Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China.
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2
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Selvaraj M, Assiri MA, Rokhum SL, Manjunatha C, Appaturi JN, Murugesan S, Bhaumik A, Subrahmanyam C. Solvent-free benzylic oxidation of aromatics over Cu(II)-containing propylsalicylaldimine anchored on the surface of mesoporous silica catalysts. Dalton Trans 2021; 50:15118-15128. [PMID: 34612261 DOI: 10.1039/d1dt01760h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sustainable method was used to produce aromatic ketones by the solvent-free benzylic oxidation of aromatics over mesoporous Cu(II)-containing propylsalicylaldimine anchored on the surface of Santa Barbara Amorphous type material-15 (CPSA-SBA-15) catalysts. For comparison, mesoporous Cu(II)-containing propylsalicylaldimine anchored with Mobil Composition of Matter-41 (CPSA-MCM-41) was assessed for these reactions under similar reaction conditions. The washed CPSA-SBA-15(0.2) (W-CPSA-SBA-15(0.2)) catalyst was prepared using an easy chemical method for the complete removal of non-framework CuO nanoparticle species on the surface of pristine CPSA-SBA-15(0.2) (p-CPSA-SBA-15(0.2) prepared with 0.2 wt% of Cu, and its catalytic activity was evaluated with different reaction parameters, oxidants and solvents. In order to confirm the catalytic stability, the recyclability was assessed, and the performance of hot-filtration experiments was also evaluated. All the catalysts used for these catalytic reactions were characterized using many instrumental techniques to pinpoint the mesoporous nature and active sites of the catalysts. The proposed reaction mechanism has been well documented on the basis of catalytic results obtained for solvent-free oxidation of aromatics. Based on the catalytic results, we found that W-CPSA-SBA-15(0.2) is a very ecofriendly catalyst with exceptional catalytic activity.
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Affiliation(s)
- Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia.
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia.
| | | | - C Manjunatha
- Department of Chemistry, RV College of Engineering, Bengaluru, 560059, India.,Centre for Hydrogen and Green Technology Research, RV College of Engineering, Bengaluru, 560059, India
| | | | - Sepperumal Murugesan
- Department of Inorganic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, 625 021, Tamil Nadu, India
| | - Asim Bhaumik
- Indian Association for the Cultivation of Science, Jadavpur, Kolkata - 700 032, India
| | - Ch Subrahmanyam
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana, India
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3
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Yun L, Zhao J, Tang X, Ma C, Yu Z, Meng Q. Selective Oxidation of Benzylic sp3 C–H Bonds using Molecular Oxygen in a Continuous-Flow Microreactor. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Lei Yun
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - Jingnan Zhao
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - Xiaofei Tang
- Xi’an Modern Chemistry Research Institute, Xi’an, Shanxi 710065, P.R. China
| | - Cunfei Ma
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - Zongyi Yu
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
| | - QingWei Meng
- State Key Laboratory of Fine Chemicals, Department of Pharmaceutical Sciences, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, P.R. China
- Ningbo Institute of Dalian University of Technology, Ningbo 315016, P.R. China
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Mishra S, Sangma SW, Bal R, Dey RK. Preparation and characterization of a copper oxide nanoparticle-supported red-mud catalyst for liquid phase oxidation of ethyl benzene to acetophenone. NEW J CHEM 2021. [DOI: 10.1039/d1nj00888a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this study, liquid phase oxidation of ethyl benzene to acetophenone was widely investigated using a new recyclable supported catalyst of CuO nanoparticles impregnated over activated red-mud (CuO_AARM).
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Affiliation(s)
- Subhashree Mishra
- Department of Chemistry
- Central University of Jharkhand (CUJ)
- Ranchi – 835 205
- India
| | - Simon Watre Sangma
- Department of Chemistry
- Central University of Jharkhand (CUJ)
- Ranchi – 835 205
- India
| | - Rajaram Bal
- Catalytic Conversion & Processes Division
- CSIR-Indian Institute of Petroleum (IIP)
- Dehradun – 248005
- India
| | - Ratan Kumar Dey
- Department of Chemistry
- Central University of Jharkhand (CUJ)
- Ranchi – 835 205
- India
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Gupta SSR, Lakshmi Kantam M. Finely dispersed CuO on nitrogen-doped carbon hollow nanospheres for selective oxidation of sp 3 C–H bonds. NEW J CHEM 2021. [DOI: 10.1039/d1nj02406j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Selective oxidation of sp3 C–H bonds has been demonstrated using a novel nanocomposite, CuO/N-C-HNSs, as the catalyst.
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Affiliation(s)
- Shyam Sunder R. Gupta
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai – 400019, Maharashtra, India
| | - Mannepalli Lakshmi Kantam
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga (E), Mumbai – 400019, Maharashtra, India
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Marella RK, Madduluri VR, Lakkaboyana SK, Hanafiah MM, Yaaratha S. Hydrogen-free hydrogenation of nitrobenzene via direct coupling with cyclohexanol dehydrogenation over ordered mesoporous MgO/SBA-15 supported Cu nanoparticles. RSC Adv 2020; 10:38755-38766. [PMID: 35518448 PMCID: PMC9057357 DOI: 10.1039/d0ra06003h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/25/2020] [Indexed: 11/21/2022] Open
Abstract
Direct catalytic coupling of nitrobenzene hydrogenation and cyclohexanol dehydrogenation was studied in the gas phase over mesoporous MgO-SBA15 supported Cu nanoparticles. This approach avoids an external supply of H2 and utilizes the in situ liberated H2 from the dehydrogenation step of the first reactant for the hydrogenation reaction of the second reactant. A catalyst series consisting of four Cu/MgO-SBA15 mesoporous solids with varying Cu loadings (5-20 wt%) were prepared and systematically characterized by BET, ICP, XRD, TPR, TPD, FT-IR, SEM, XPS, and TEM. Among the series, the 15 wt% Cu catalyst exhibited the best performance with ≥82% conversion of nitrobenzene along with ≥89% cyclohexanol conversion. In addition, significantly higher yields of cyclohexanone (83%) and aniline (75%) could be achieved successfully over the same catalyst. Furthermore, the catalyst exhibited almost stable activity during 30 h time-on-stream with slow deactivation. The highly ordered mesoporous silica increases the metal-support interaction with smaller particles of Cu on the surface, and the synergism between acid-base sites is responsible for the improved catalytic activity.
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Affiliation(s)
- Ravi Kumar Marella
- Department of Chemistry (H & S), PACE Institute of Technology & Sciences Ongole 523001 Andhra Pradesh India
- Department of Chemical Engineering, University of Cape Town Rondebosch 7701 Western Cape South Africa
- Catalysis and Fine Chemicals Division, Indian Institute of Chemical Technology Hyderabad 500007 Telangana India
| | - Venkata Rao Madduluri
- Catalysis and Fine Chemicals Division, Indian Institute of Chemical Technology Hyderabad 500007 Telangana India
| | | | - Marlia M Hanafiah
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia
- Centre for Tropical Climate Change System, Institute of Climate Change, Universiti Kebangsaan Malaysia 43600 UKM Bangi Selangor Malaysia
| | - Sarala Yaaratha
- Department of Chemistry, Chaitanya Bharathi Institute of Technology Gandipet Hyderabad 500 075 India
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Arellano U, Wang J, Chen L, Asomoza M, Guzmán A, Solís S, Estrella A, Cipagauta S, Noreña L. Transition metal oxides dispersed on Ti-MCM-41 hybrid core-shell catalysts for the photocatalytic degradation of Congo red colorant. Catal Today 2020. [DOI: 10.1016/j.cattod.2018.05.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
Recalcitrant sulfur compounds are common impurities in crude oil. During combustion they produce SOx derivatives that are able to affect the atmospheric ozone layer, increasing the formation of acid rains, and reducing the life of the engine due to corrosion. In the last twenty years, many efforts have been devoted to develop conventional hydrodesulfurization (HDS) procedures, as well as alternative methods, such as selective adsorption, bio-desulfurization, oxidative desulfurization (ODS) under extractive conditions (ECODS), and others. Among them, the oxidative procedures have been usually accomplished by the use of toxic stoichiometric oxidants, namely potassium permanganate, sodium bromate and carboxylic and sulfonic peracids. As an alternative, increasing interest is devoted to selective and economical procedures based upon catalytic methods. Heterogeneous catalysis is of relevance in industrial ODS processes, since it reduces the leaching of active species and favors the recovery and reuse of the catalyst for successive transformations. The heterogenization of different types of high-valent metal transition-based organometallic complexes, able to promote the activation of stoichiometric benign oxidants like peroxides, can be achieved using various solid supports. Many successful cases have been frequently associated with the use of mesoporous silicas that have the advantage of easy surface modification by reaction with organosilanes, facilitating the immobilization of homogeneous catalysts. In this manuscript the application of SBA-15 as efficient support for different active metal species, able to promote the catalytic ODS of either model or real fuels is reviewed, highlighting its beneficial properties such as high surface area, narrow pore size distribution and tunable pore diameter dimensions. Related to this topic, the most relevant advances recently published, will be discussed and critically described.
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10
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A green methodology for the selective catalytic oxidation of styrene by magnetic metal-transition ferrite nanoparticles. CATAL COMMUN 2018. [DOI: 10.1016/j.catcom.2018.08.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Neeli CKP, Kannapu HPR, Kalevaru VN, Kamaraju SRR, Burri DR. An efficient and selective benzylic oxidation of tetralin to 1-tetralone on Cu(II) immobilized γ-Fe 2 O 3 @SBA-15 magnetic nanocatalyst in green water medium without base or additives. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.04.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Liu Y, Li L, Liu S, Xie C, Yu S. The selective hydrogenation of rosin to hydroabietic content using Pd/SBA-15 as catalysts. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2693-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Siva Sankar E, Mohan V, Suresh M, Saidulu G, David Raju B, Rama Rao K. Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst. CATAL COMMUN 2016. [DOI: 10.1016/j.catcom.2015.10.013] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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15
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Neeli CKP, Ganjala VSP, Vakati V, Rao KSR, Burri DR. V2O5/SBA-15 nanocatalysts for the selective synthesis of 2,3,5-trimethyl-1,4-benzoquinone at room temperature. NEW J CHEM 2016. [DOI: 10.1039/c5nj02399h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The molecular designed dispersion method yielded monodispersed nanoscale (4–7.5 nm sized) V2O5 dimeric species on SBA-15, which oxidized TMP into TMBQ with H2O2 under green conditions.
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Affiliation(s)
| | | | - Venkateswarlu Vakati
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
| | | | - David Raju Burri
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607
- India
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16
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Zarghani M, Akhlaghinia B. Fe3O4 magnetic nanoparticles (MNPs) as an efficient catalyst for selective oxidation of benzylic and allylic C–H bonds to carbonyl compounds with tert-butyl hydroperoxide. RSC Adv 2016. [DOI: 10.1039/c6ra04903f] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fe3O4 MNP as an eco-friendly catalyst was prepared, characterized and applied for oxidation of benzylic and allylic C–H bonds.
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Affiliation(s)
- Monireh Zarghani
- Department of Chemistry
- Faculty of Sciences
- Ferdowsi University of Mashhad
- Mashhad 9177948974
- Iran
| | - Batool Akhlaghinia
- Department of Chemistry
- Faculty of Sciences
- Ferdowsi University of Mashhad
- Mashhad 9177948974
- Iran
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17
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High-stable CuPd–Cu2O/Ti-powder catalyst for low-temperature gas-phase selective oxidation of alcohols. CATAL COMMUN 2015. [DOI: 10.1016/j.catcom.2015.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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18
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Hossain MM, Ali ME, Abd Hamid SB, Rahman MM. Catalytic Oxidation of Alkyl Benzene. ADVANCED MATERIALS RESEARCH 2015; 1109:248-252. [DOI: 10.4028/www.scientific.net/amr.1109.248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Oxidation of benzylic C-H bonds of alkyl benzene for the synthesis of corresponding carbonyl compounds is a very important reaction for both commercial manufacturing and basic research. This paper reviews various kinds of catalysts involved in the oxidation of alkyl aromatic and their activity in various conditions and probable mechanism of action where applicable. The rate of conversion of alkyl aromatic and per cent of the yield of the corresponding products for each catalyst has been included.
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Schiff Base Complex Coated Fe3O4 Nanoparticles: A Highly Recyclable Nanocatalyst for Selective Oxidation of Alkyl Aromatics. Catal Letters 2014. [DOI: 10.1007/s10562-014-1244-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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Neeli CKP, Ganji S, Ganjala VSP, Kamaraju SRR, Burri DR. Oxidative coupling of primary amines to imines under base-free and additive-free conditions over AuNPs/SBA-NH2 nanocatalyst. RSC Adv 2014. [DOI: 10.1039/c4ra00791c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Oxidative coupling of benzylamines to N-benzylbenzylimines under base- and additive-free conditions is achieved over AuNPs/SBA-NH2. Facile preparation, high activity, ease of separation and good reusability are the credentials of AuNPs/SBA-NH2 catalyst.
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Affiliation(s)
| | - Saidulu Ganji
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
| | | | | | - David Raju Burri
- Catalysis Laboratory
- Indian Institute of Chemical Technology
- Hyderabad-500607, India
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Narani A, Marella RK, Ramudu P, Rama Rao KS, Burri DR. Cu(ii) complex heterogenized on SBA-15: a highly efficient and additive-free solid catalyst for the homocoupling of alkynes. RSC Adv 2014. [DOI: 10.1039/c3ra44213f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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