1
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Pranesh Kavin S, Ramesh R. Synthesis and structure of Pd(II) pincer complexes: catalytic application in β-alkylation of secondary alcohols involving sequential dehydrogenation of alcohols via the borrowing hydrogen approach. Dalton Trans 2023. [PMID: 37409425 DOI: 10.1039/d3dt01628e] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Herein, we report an efficient and sustainable approach for the selective synthesis of ketones by palladium pincer catalyzed β-alkylation of secondary alcohols with aromatic primary alcohols via the borrowing hydrogen (BH) approach for the first time. A set of new Pd(II) ONO pincer complexes was synthesized and characterised by elemental analysis and spectral techniques (FT-IR, NMR and HRMS). The solid-state molecular structure of one the complexes was corroborated by X-ray crystallography. A range of α-alkylated ketone derivatives (25 examples) was obtained in excellent yields up to 95% through sequential dehydrogenative coupling of secondary and primary alcohols with 0.5 mol% catalyst loading with a substoichiometric amount of the base. Control experiment studies were carried out for the coupling reactions which revealed that the reaction involves an aldehyde, a ketone and chalcone intermediates, and eventually established the borrowing hydrogen strategy. Gratifyingly, this protocol is simple and atom economical, with water/hydrogen as byproducts. In addition, large-scale synthesis also demonstrated the synthetic usefulness of the present protocol.
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Affiliation(s)
- Sekar Pranesh Kavin
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli - 620 024, Tamilnadu, India.
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli - 620 024, Tamilnadu, India.
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2
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Jayaram A, Govindan K, Kannan VR, Thavasianandam Seenivasan V, Chen NQ, Lin WY. Iodine-Promoted Oxidative Cyclization of Acylated and Alkylated Derivatives from Epoxides toward the Synthesis of Aza Heterocycles. J Org Chem 2023; 88:1749-1761. [PMID: 36649653 DOI: 10.1021/acs.joc.2c02802] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A new method for directly synthesizing acylated and alkylated quinazoline derivatives by the epoxide ring-opening reaction in the presence of I2/DMSO with 2-aminobenzamide is described herein. The developed mild protocol is efficient and displays a wide variety of functional group tolerance and substrate-controlled high selectivity, and the application of a continuous flow technique allows for faster reaction time and higher yields. Moreover, the robustness of the method is applicable in gram-scale synthesis.
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Affiliation(s)
- Alageswaran Jayaram
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Karthick Govindan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Vijaya Raghavan Kannan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | | | - Nian-Qi Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan, ROC.,Drug Development and Value Creation Research Centre, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, ROC
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3
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Wang M, Ren J, Xiao Q, Song A, Yu S, Wang R, Xing L. Photocatalytic One-Pot Synthesis of Quinazolinone Under Ambient Conditions. Catal Letters 2023. [DOI: 10.1007/s10562-022-04266-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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4
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Lin Hu Y, Rong Q, Chen C, Bing Liu X. Sustainable and efficient 2,3-dihydroquinazolin-4(1H)-ones production over heterogeneous and recyclable Al-MCM-41 supported dual imidazolium ionic liquids nanocomposites. JOURNAL OF SAUDI CHEMICAL SOCIETY 2023. [DOI: 10.1016/j.jscs.2022.101588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Jafarzadeh M, Sobhani SH, Gajewski K, Kianmehr E. Recent advances in C/ N-alkylation with alcohols through hydride transfer strategies. Org Biomol Chem 2022; 20:7713-7745. [PMID: 36169049 DOI: 10.1039/d2ob00706a] [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
This review highlights the most recent reports in three powerful and ever-growing fields of borrowing hydrogen, acceptorless dehydrogenative coupling, and base-mediated hydride transfer strategies; which pave the way for generating reactive intermediates via shuttling hydrogen (or hydride) between starting materials without any need for an external hydrogen source to easily construct more complex structures. There is a thorough focus on diversifying the utility of alcohols for C/N-alkylation leading to the synthesis of branched ketones, alcohols, amines, indols, and 6-membered nitrogen-containing heterocycles such as pyridines and pyrimidines, various transformations with the focus on C-C and C-N bond-forming reactions via metal-based catalysis or metal-free approaches in this context to give a global overview in this area.
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Affiliation(s)
- Mahdi Jafarzadeh
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran.
| | - Seyed Hasan Sobhani
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran.
| | | | - Ebrahim Kianmehr
- School of Chemistry, College of Science, University of Tehran, Tehran 1417614411, Iran.
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6
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Hao Z, Zhou X, Ma Z, Zhang C, Han Z, Lin J, Lu GL. Dehydrogenative Synthesis of Quinolines and Quinazolines via Ligand-Free Cobalt-Catalyzed Cyclization of 2-Aminoaryl Alcohols with Ketones or Nitriles. J Org Chem 2022; 87:12596-12607. [PMID: 36162131 DOI: 10.1021/acs.joc.2c00734] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a convenient and efficient protocol to synthesize quinolines and quinazolines in one pot under mild conditions. A variety of substituted quinolines were synthesized in good to excellent yields (up to 97% yield) from the dehydrogenative cyclizations of 2-aminoaryl alcohols and ketones catalyzed by readily available Co(OAc)2·4H2O. This cobalt catalytic system also showed high activity in the reactions of 2-aminobenzyl alcohols with nitriles, affording various quinazoline derivatives (up to 95% yield). The present protocol offers an environmentally benign approach for the synthesis of N-heterocycles by employing an earth-abundant cobalt salt under ligand-free conditions.
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Affiliation(s)
- Zhiqiang Hao
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Xiaoyu Zhou
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zongwen Ma
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Caicai Zhang
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Zhangang Han
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Jin Lin
- National Experimental Chemistry Teaching Center (Hebei Normal University), Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials Science, Hebei Normal University, Shijiazhuang 050024, People's Republic of China
| | - Guo-Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,Maurice Wilkins Centre, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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7
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Pérez-Fehrmann M, Kesternich V, Puelles A, Quezada V, Salazar F, Christen P, Castillo J, Cárcamo JG, Castro-Alvarez A, Nelson R. Synthesis, antitumor activity, 3D-QSAR and molecular docking studies of new iodinated 4-(3 H)-quinazolinones 3 N-substituted. RSC Adv 2022; 12:21340-21352. [PMID: 35975048 PMCID: PMC9344282 DOI: 10.1039/d2ra03684c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/19/2022] [Indexed: 01/09/2023] Open
Abstract
A novel series of 6-iodo-2-methylquinazolin-4-(3H)-one derivatives, 3a–n, were synthesized and evaluated for their in vitro cytotoxic activity. Compounds 3a, 3b, 3d, 3e, and 3h showed remarkable cytotoxic activity on specific human cancer cell lines when compared to the anti-cancer drug, paclitaxel. Compound 3a was found to be particularly effective on promyelocytic leukaemia HL60 and non-Hodgkin lymphoma U937, with IC50 values of 21 and 30 μM, respectively. Compound 3d showed significant activity against cervical cancer HeLa (IC50 = 10 μM). The compounds 3e and 3h were strongly active against glioblastoma multiform tumour T98G, with IC50 values of 12 and 22 μM, respectively. These five compounds showed an interesting cytotoxic activity on four human cancer cell types of high incidence. The molecular docking results reveal a good correlation between experimental activity and calculated binding affinity on dihydrofolate reductase (DHFR). Docking studies proved 3d as the most potent compound. In addition, the three-dimensional quantitative structure–activity relationship (3D-QSAR) analysis exhibited activities that may indicate the existence of electron-withdrawing and lipophilic groups at the para-position of the phenyl ring and hydrophobic interactions of the quinazolinic ring in the DHFR active site. New iodinated 4-(3H)-quinazolinones 3N-substituted with antitumor activity and 3D-QSAR and molecular docking studies as dihydrofolate reductase (DHFR) inhibitors.![]()
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Affiliation(s)
- Marcia Pérez-Fehrmann
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Víctor Kesternich
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Arturo Puelles
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Víctor Quezada
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Fernanda Salazar
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
| | - Philippe Christen
- School of Pharmaceutical Sciences University of Geneva 1211 Geneva 4 Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland University of Geneva 1211 Geneva 4 Switzerland
| | - Jonathan Castillo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja Valdivia Chile
| | - Juan Guillermo Cárcamo
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile Campus Isla Teja Valdivia Chile.,Centro FONDAP, Interdisciplinary Center for Aquaculture Research (INCAR) Chile
| | - Alejandro Castro-Alvarez
- Laboratorio de Bioproductos Farmacéuticos y Cosméticos, Centro de Excelencia en Medicina Traslacional, Facultad de Medicina, Universidad de La Frontera Av. Francisco Salazar 01145 Temuco 4780000 Chile.,Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile Casilla 40, Correo 33 Santiago Chile
| | - Ronald Nelson
- Departamento de Química, Facultad de Ciencias, Universidad Católica del Norte Av. Angamos 0610 Antofagasta 1270709 Chile
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8
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Hasanpour Galehban M, Zeynizadeh B, Mousavi H. Ni II NPs entrapped within a matrix of l-glutamic acid cross-linked chitosan supported on magnetic carboxylic acid-functionalized multi-walled carbon nanotube: a new and efficient multi-task catalytic system for the green one-pot synthesis of diverse heterocyclic frameworks. RSC Adv 2022; 12:16454-16478. [PMID: 35754864 PMCID: PMC9171750 DOI: 10.1039/d1ra08454b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 04/20/2022] [Indexed: 12/19/2022] Open
Abstract
In the present study, a new l-glutamic acid cross-linked chitosan supported on magnetic carboxylic acid-functionalized multi-walled carbon nanotube (Fe3O4/f-MWCNT-CS-Glu) nanocomposite was prepared through a convenient one-pot multi-component sequential strategy. Then, nickelII nanoparticles (NiII NPs) were entrapped within a matrix of the mentioned nanocomposite. Afterward, the structure of the as-prepared Fe3O4/f-MWCNT-CS-Glu/NiII nanosystem was elucidated by various techniques, including FT-IR, PXRD, SEM, TEM, SEM-based EDX and elemental mapping, ICP-OES, TGA/DTA, and VSM. In the next part of this research, the catalytic applications of the mentioned nickelII-containing magnetic nanocomposite were assessed upon green one-pot synthesis of diverse heterocyclic frameworks, including bis-coumarins (3a–n), 2-aryl(or heteroaryl)-2,3-dihydroquinazolin-4(1H)-ones (5a–r), 9-aryl-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-diones (7a–n), and 2-amino-4-aryl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitriles (9a–n). The good-to-excellent yields of the desired products, satisfactory reaction rates, use of water solvent or solvent-free reaction medium, acceptable turnover numbers (TONs) and turnover frequencies (TOFs), along with comfortable recoverability and satisfying reusability of the as-prepared nanocatalyst for at least eight successive runs, and also easy work-up and purification procedures are some of the advantages of the current synthetic protocols. In this research work, an Fe3O4/f-MWCNT-CS-Glu/NiII hybrid nanocomposite was synthesized, characterized, and used as a new and efficient multi-task catalytic system for the green one-pot synthesis of diverse heterocyclic frameworks.![]()
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Affiliation(s)
| | - Behzad Zeynizadeh
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University Urmia Iran
| | - Hossein Mousavi
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University Urmia Iran
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9
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Sundarraman B, Rengan R, Semeril D. NNO Pincer Ligand-Supported Palladium(II) Complexes: Direct Synthesis of Quinazolines via Acceptorless Double Dehydrogenative Coupling of Alcohols. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00062] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Balaji Sundarraman
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, 620 024 Tiruchirappalli, India
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, 620 024 Tiruchirappalli, India
| | - David Semeril
- Laboratoire de Chimie Inorganique et Catalyse, Institut de Chimie, Universite de Strasbourg, UMR 7177, CNRS, 67000 Strasbourg, France
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10
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Savarimuthu Selvan C, Rengan R, Małecki JG. Concise Access to Perimidines by Palladium (II) Complexes via Acceptorless Dehydrogenative Coupling of Alcohols. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6708] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Ramesh Rengan
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli India
| | - Jan Grzegorz Małecki
- Department of Crystallography Institute of Chemistry, University of Silesia Katowice Poland
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11
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Sardar B, Jamatia R, Samanta A, Srimani D. Ru Doped Hydrotalcite Catalyzed Borrowing Hydrogen-Mediated N-Alkylation of Benzamides, Sulfonamides, and Dehydrogenative Synthesis of Quinazolinones. J Org Chem 2022; 87:5556-5567. [PMID: 35442678 DOI: 10.1021/acs.joc.1c02913] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Ru doped hydrotalcite catalyzed N-alkylation of benzamides and sulfonamides with alcohols via borrowing hydrogen catalysis is illustrated. Various primary alcohols, including benzyl, heteroaryl, and aliphatic alcohols, were alkylated in good to excellent yields. To shed light on the mechanistic details, several control studies and deuterium labeling experiments were performed. Mechanistic studies underpin that the reaction is going via a borrowing hydrogen pathway rather than an SN1 type mechanism. The reaction can be easily scaled up without any detrimental effect on the yield. The catalyst is also capable of synthesizing quinazolinone directly from 2-aminobenzamide and alcohols. Successful recyclability and high reactivity highlight the practical applicability of the catalyst.
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Affiliation(s)
- Bitan Sardar
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
| | - Ramen Jamatia
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India.,Department of Chemistry, Rajiv Gandhi University, Rono Hills, Doimukh, Arunachal Pradesh 791112, India
| | - Arup Samanta
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology Guwahati, Assam, Guwahati Pin 781039, India
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12
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Anandaraj P, Ramesh R, Kamatchi TS. N^N^O hydrazone capped pincer type palladium complex catalysed construction of quinazolinones from alcohols. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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A peroxo‐Mo(VI)/Mo(VI)‐mediated redox synthesis of quinazolin‐4(3
H
)‐ones and their aggregation‐induced emission property and mechanism. J PHYS ORG CHEM 2022. [DOI: 10.1002/poc.4329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Mohammadi M, Ghorbani-Choghamarani A. Synthesis and characterization of novel hercynite@sulfuric acid and its catalytic applications in the synthesis of polyhydroquinolines and 2,3-dihydroquinazolin-4(1 H)-ones. RSC Adv 2022; 12:2770-2787. [PMID: 35425328 PMCID: PMC8979139 DOI: 10.1039/d1ra07381h] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 01/10/2022] [Indexed: 12/12/2022] Open
Abstract
Herein, we report the synthesis of hercynite@sulfuric acid as a novel nanomagnetic solid acid catalyst, containing the sulfuric acid catalytic sites on the surface of hercynite MNPs as the catalytic support. The as-synthesized nanocomposite was meticulously characterized using a wide range of physicochemical techniques; including, FT-IR, XRD, EDX, X-ray-mapping, SEM and VSM analysis. The catalytic activity of this nanomagnetic material was considered for the synthesis of the diversely substituted polyhydroquinolines and 2,3-dihydroquinazolin-4(1H)-ones under solvent free conditions and also cyclocondensation reactions in ethanol, respectively affording good to excellent yields. Moreover, it is worth mentioning that the heterogeneity of the catalyst was measured through its excellent reusability and hot-filtration test. Herein, we report the synthesis of hercynite@sulfuric acid as a novel nanomagnetic solid acid catalyst, containing the sulfuric acid catalytic sites on the surface of hercynite MNPs as the catalytic support.![]()
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Affiliation(s)
- Masoud Mohammadi
- Department of Chemistry, Faculty of Science, Ilam University P.O. Box 69315516 Ilam Iran
| | - Arash Ghorbani-Choghamarani
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan 6517838683 Iran +98 8138380709 +98 8138282807
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15
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Deng W, Qiu R, Zeng D, Yang T, Tang N, Xiang J, Yin SF, Kambe N. UV-Light-Induced Dehydrogenative N-Acylation of Amines with 2-Nitrobenzaldehydes To Give 2-Aminobenzamides. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1736-4388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractA simple, mild, green, and efficient method for the synthesis of 2-aminobenzamides is highly desirable. Herein, we report the development of an efficient, one-pot strategy starting from 2-aminobenzaldehydes and amines with acetic acid in ethyl acetate/acetone using irradiation with UV light for the synthesis of 2-aminobenzamides in high yields; 32 examples proceeded successfully by this photo-induced protocol in up to 92% yield. The reaction was also readily achieved on a gram scale. The utility of the 2-aminobenzamide building block in organic synthesis was shown by their use in the preparation of quinazolinone derivatives. The method was applied to amino acid derivatives as the amine component, which smoothly gave N-(2-aminobenzoyl)acetate derivatives at room temperature. Finally, a plausible mechanism is proposed.
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Affiliation(s)
- Wei Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Dishu Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Tianbao Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Niu Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Jiannan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University
| | - Nobuaki Kambe
- The Institute of Scientific and Industrial Research, Osaka University
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16
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Tamilthendral V, Balamurugan G, Ramesh R, Malecki JG. Ru(II)–NNO pincer‐type complexes catalysed E‐olefination of alkyl‐substituted quinolines/pyrazines utilizing primary alcohols. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Veerappan Tamilthendral
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Gunasekaran Balamurugan
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Jan Grzegorz Malecki
- Department of Crystallography, Institute of Chemistry University of Silesia Katowice Poland
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17
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Pal D, Mondal A, Srimani D. Well-defined manganese complex catalyzed dehydrogenative synthesis of quinazolin-4(3 H)-ones and 3,4-dihydro-2 H-1,2,4-benzothiadiazine 1,1-dioxides. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00260d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of N-heterocycles has been considered an emerging topic of chemical research due to its widespread usage in medicinal chemistry, materials science, and natural product synthesis.
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Affiliation(s)
- Debjyoti Pal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Avijit Mondal
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
| | - Dipankar Srimani
- Department of Chemistry, Indian Institute of Technology-Guwahati, Kamrup, Assam 781039, India
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