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Maurya MR, Nandi M, Kumar N, Avecilla F. Polymer Supported Nitrogen-Bridged Symmetrical Binuclear Dioxidomolybdenum(VI) Complexes and Their Homogeneous Analogues as Potential Catalysts for Efficient Synthesis of 2-Amino-3-Cyano-4H-Chromenes/Pyrans. Chemistry 2024; 30:e202400631. [PMID: 38491788 DOI: 10.1002/chem.202400631] [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: 02/16/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/18/2024]
Abstract
Reaction of 2-chloromethyl-1H-benzimidazole with known intermediates (i-iii), prepared from diaminoguanidine hydrochloride with salicylaldehyde, 5-bromosalicylaldehyde or 3,5-di-tert-butylsalicylaldehyde, in the presence of triethylamine (NEt3) led to the formation of benzimidazole appended new ligands, H4L1-H4L3 (I-III). The homogeneous nitrogen-bridged symmetrical binuclear complexes, [(MoVIO2)2(L1)(H2O)2] (1), [(MoVIO2)2(L2)(H2O)2] (2) and [(MoVIO2)2(L3)(MeOH)2] (3) have been isolated by reacting these ligands with [MoVIO2(acac)2] in a 1 : 2 molar ratio in refluxing methanol. Using 1 : 1 (ligand to Mo precursor) molar ratio under above reaction conditions resulted in the corresponding mononuclear complexes, [MoVIO2(H2L1)(MeOH)] (4), [MoVIO2(H2L2)(H2O)] (5) and [MoVIO2(H2L3)(MeOH)] (6). The binuclear heterogeneous compounds [(MoVIO2)2(L1)(DMF)2]@PS (PS-1), [(MoVIO2)2(L2)(DMF)2]@PS (PS-2) and [(MoVIO2)2(L3)(DMF)2]@PS (PS-3) have been obtained by immobilization of 1-3 onto chloromethylated polystyrene (PS) beads. All synthesized ligands, homogeneous as well as supported compounds have been characterized by elemental analyses and various spectroscopic methods. Single crystal X-ray diffraction study of complexes 1 and 3 confirms their nitrogen-bridged symmetrical binuclear structures while 4 is mononuclear. Heterogeneous compounds (PS-1-PS-3) have further been studied by microwave plasma atomic emission spectroscopy, X-ray photoelectron spectroscopy, and field emission scanning electron microscopy along with energy dispersive spectroscopy. These compounds (homogeneous and heterogeneous) were explored for catalytic applications to one-pot multicomponent reactions (MCRs) for efficient synthesis of biologically active 2-amino-3-cyano-4H-chromenes/pyrans (21 examples). Optimising various reaction parameters helped in achieving as high as 97 % yields of products. Though, only half equivalent of the binuclear complexes (1-3) was required compared to mononuclear analogues (4-6) to achieve comparable yields, heterogeneous catalysts have an added advantage due to their stability and recyclability. Suitable reaction mechanism has also been proposed based on isolated intermediates.
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Affiliation(s)
- Mannar R Maurya
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Monojit Nandi
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Naveen Kumar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Fernando Avecilla
- Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química y Biología (CICA), Departamento de Química, Facultade de Ciencias, Campus de A Coruna, 15071, A Coruna, , Spain
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Talukdar H, Sultana SY, Kalita A, Islam NS. Selective and Mild Oxidation of 5‐Hydroxymethylfurfural to 5‐Hydroxymethyl‐2‐furancarboxylic Acid over Organic Polymer‐Supported Peroxidoniobium(V) Catalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202202374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiya Talukdar
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
| | | | - Arnab Kalita
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
| | - Nashreen S. Islam
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
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Talukdar H, Gogoi SR, Saikia G, Sultana SY, Ahmed K, Islam NS. A sustainable approach towards solventless organic oxidations catalyzed by polymer immobilized Nb(V)-peroxido compounds with H2O2 as oxidant. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kargar H, Forootan P, Fallah-Mehrjardi M, Behjatmanesh-Ardakani R, Amiri Rudbari H, Shahzad Munawar K, Ashfaq M, Nawaz Tahir M. Novel oxovanadium and dioxomolybdenum complexes of tridentate ONO-donor Schiff base ligand: Synthesis, characterization, crystal structures, Hirshfeld surface analysis, DFT computational studies and catalytic activity for the selective oxidation of benzylic alcohols. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120414] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Kargar H, Moghimi A, Fallah-Mehrjardi M, Behjatmanesh-Ardakani R, Rudbari HA, Munawar KS. New oxovanadium and dioxomolybdenum complexes as catalysts for sulfoxidation: experimental and theoretical investigations of E and Z isomers of ONO tridentate Schiff base ligand. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1941020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Hadi Kargar
- Department of Chemical Engineering, Faculty of Engineering, Ardakan University, Ardakan, Iran
| | - Atefeh Moghimi
- Department of Chemistry, Payame Noor University Tehran, Iran
| | | | | | | | - Khurram Shahzad Munawar
- Department of Chemistry, University of Sargodha, Pakistan
- Department of Chemistry, University of Mianwali, Pakistan
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Das AK, Nandy S, Bhar S. Chemoselective and ligand‐free aerobic oxidation of benzylic alcohols to carbonyl compounds using alumina‐supported mesoporous nickel nanoparticle as an efficient recyclable heterogeneous catalyst. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Asit Kumar Das
- Department of Chemistry Krishnath College Berhampore India
| | - Sneha Nandy
- Department of Chemistry Jadavpur University Kolkata India
| | - Sanjay Bhar
- Department of Chemistry Jadavpur University Kolkata India
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Das SP, Boruah JJ. Selective and solventless oxidation of organic sulfides and alcohols using new supported molybdenum (VI) complex in microwave and conventional methods. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Siva Prasad Das
- Department of ChemistrySchool of Science, RK University Bhavnagar Highway Kasturbadham, Rajkot Gujarat 360020 India
| | - Jeena Jyoti Boruah
- Department of ChemistrySchool of Science, RK University Bhavnagar Highway Kasturbadham, Rajkot Gujarat 360020 India
- Department of ChemistryMoridhal College Moridhal, Dhemaji Assam 787057 India
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Adam MSS, Ahmed MSM, El‐Hady OM, Shaaban S. Bis‐dioxomolybdenum (VI) oxalyldihydrazone complexes: Synthesis, characterization, DFT studies, catalytic epoxidation potential, molecular modeling and biological evaluations. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5573] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mohamed Shaker S. Adam
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al‐Hofuf Al‐Ahsa 31982 Saudi Arabia
- Chemistry Department, Faculty of ScienceSohag University Sohag 82534 Egypt
| | - Mohamed S. Mohamed Ahmed
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al‐Hofuf Al‐Ahsa 31982 Saudi Arabia
- Chemistry Department, Faculty of ScienceCairo University Giza Egypt
| | - Omar M. El‐Hady
- Chemistry Department, Faculty of ScienceSohag University Sohag 82534 Egypt
| | - Saad Shaaban
- Department of Chemistry, College of ScienceKing Faisal University P.O. Box 380 Al‐Hofuf Al‐Ahsa 31982 Saudi Arabia
- Chemistry Department, Faculty of ScienceMansoura University Mansoura Egypt
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Hydrogen Peroxide as a Green Oxidant for the Selective Catalytic Oxidation of Benzylic and Heterocyclic Alcohols in Different Media: An Overview. CHEMISTRY 2020. [DOI: 10.3390/chemistry2010010] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Among a plethora of known and established oxidant in organic chemistry, hydrogen peroxide stands in a special position. It is commercially and inexpensively available, highly effective, selective, and more importantly it is compatible with current environmental concerns, dictated by principles of green chemistry. Several chemicals or their intermediates that are important in our daily life such as pharmaceuticals, flavors, fragrances, etc. are products of oxidation of alcohols. In this review, we introduce hydrogen peroxide as an effective, selective, green and privileged oxidant for the catalyzed oxidation of primary and secondary benzylic and heterocyclic alcohols to corresponding carbonyl compounds in different media such as aqueous media, under solvent-free conditions, various organic solvent, and dual-phase system.
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Abstract
Selective oxidation of benzyl alcohol to benzaldehyde was carried out with MoO2 nanoparticles (MoO2 NPs). MoO2 NPs were synthesized by two different approaches and characterized by several techniques. The synthesis was done by a hydrothermal procedure using ethylenediamine and either Fe2O3 or hydroquinone. In the latter case, an additional calcination step under N2 was performed to eliminate passivating agents at the surface of the nanoparticles. The synthesized nanocatalysts showed similar catalytic properties, being efficient catalysts in the oxidation of benzyl alcohol. High substrate conversion and product selectivity were achieved under all tested conditions. Studies were conducted using two different oxidants: tert-butyl hydroperoxide and hydrogen peroxide, in our continuous effort to obtain more efficient catalysts for more sustainable catalytic processes. When H2O2 was used as the oxidant, 94% yield was achieved with 100% selectivity for benzaldehyde, which was a very promising result to undergo other studies with this system. Moreover, to elucidate some aspects of the reaction mechanism, a study was conducted, and it was possible to conclude that the reaction undergoes, to some extent, through a radical mechanism with both oxidants.
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Maurya MR, Jangra N, Avecilla F, Ribeiro N, Correia I. Vanadium(V) and Molybdenum(VI) Complexes Containing ONO Tridentate Schiff Bases and Their Application as Catalysts for Oxidative Bromination of Phenols. ChemistrySelect 2019. [DOI: 10.1002/slct.201903678] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mannar R. Maurya
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247667 India
| | - Nancy Jangra
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247667 India
| | - Fernando Avecilla
- Grupo XenomarCentro de Investigacións Científicas Avanzadas (CICA)Departamento de Química, Facultade de CienciasUniversidade da CoruñaCampus de A Coruña 15071 A Coruña Spain
| | - Nádia Ribeiro
- Centro de Química EstruturalDepartamento de Engenharia QuímicaInstituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1,1049–001 Lisboa Portugal
| | - Isabel Correia
- Centro de Química EstruturalDepartamento de Engenharia QuímicaInstituto Superior TécnicoUniversidade de Lisboa Av. Rovisco Pais 1,1049–001 Lisboa Portugal
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