1
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Askerova U, Abdullayev Y, Shikhaliyev N, Maharramov A, Nenajdenko VG, Autschbach J. Computational exploration of the copper(I)-catalyzed conversion of hydrazones to dihalogenated vinyldiazene derivatives. J Comput Chem 2024; 45:2098-2103. [PMID: 38760058 DOI: 10.1002/jcc.27433] [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: 01/08/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/19/2024]
Abstract
This computational study explores the copper (I) chloride catalyzed synthesis of (E)-1-(2,2-dichloro-1-phenylvinyl)-2-phenyldiazene (2Cl-VD) from readily available hydrazone derivative and carbon tetrachloride (CCl4). 2Cl-VD has been extensively utilized to synthesize variety of heterocyclic organic compounds in mild conditions. The present computational investigations primarily focus on understanding the role of copper (I) and N1,N1,N2,N2-tetramethylethane-1,2-diamine (TMEDA) in this reaction, TMEDA often being considered a proton scavenger by experimentalists. Considering TMEDA as a ligand significantly alters the energy barrier. In fact, it is only 8.3 kcal/mol higher compared to the ligand-free (LF) route for the removal of a chlorine atom to form the radical ·CCl3 but the following steps are almost barrierless. This intermediate then participates in attacking the electrophilic carbon in the hydrazone. Crucially, the study reveals that the overall potential energy surface is thermodynamically favorable, and the theoretical turnover frequency (TOF) value is higher in the case of Cu(I)-TMEDA complex catalyzed pathway.
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Affiliation(s)
- Ulviyya Askerova
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | - Yusif Abdullayev
- Department of Chemical Engineering, Baku Engineering University, Baku, Azerbaijan
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences, Baku, Azerbaijan
- Department of Chemistry, Sumgait State University, Sumgait, Azerbaijan
| | - Namiq Shikhaliyev
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | - Abel Maharramov
- Organic Chemistry Department, Baku State University, Baku, Azerbaijan
| | | | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York, USA
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2
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Abdullayev Y, Karimova N, Schenberg LA, Ducati LC, Autschbach J. Computational predictions on Brønsted acidic ionic liquid-catalyzed carbon dioxide conversion to five-membered heterocyclic carbonyl derivatives. Phys Chem Chem Phys 2023; 25:8624-8630. [PMID: 36891907 DOI: 10.1039/d2cp05877d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Experimentally conducted reactions between CO2 and various substrates (i.e., ethylenediamine (EDA), ethanolamine (ETA), ethylene glycol (EG), mercaptoethanol (ME), and ethylene dithiol (EDT)) are considered in a computational study. The reactions were previously conducted under harsh conditions utilizing toxic metal catalysts. We computationally utilize Brønsted acidic ionic liquid (IL) [Et2NH2]HSO4 as a catalyst aiming to investigate and propose 'greener' pathways for future experimental studies. Computations show that EDA is the best to fixate CO2 among the tested substrates: the nucleophilic EDA attack on CO2 is calculated to have a very small energy barrier to overcome (TS1EDA, ΔG‡ = 1.4 kcal mol-1) and form I1EDA (carbamic acid adduct). The formed intermediate is converted to cyclic urea (PEDA, imidazolidin-2-one) via ring closure and dehydration of the concerted transition state (TS2EDA, ΔG‡ = 32.8 kcal mol-1). Solvation model analysis demonstrates that nonpolar solvents (hexane, THF) are better for fixing CO2 with EDA. Attaching electron-donating and -withdrawing groups to EDA does not reduce the energy barriers. Modifying the IL via changing the anion part (HSO4-) central S atom with 6 A and 5 A group elements (Se, P, and As) shows that a Se-based IL can be utilized for the same purpose. Molecular dynamics (MD) simulations reveal that the IL ion pairs can hold substrates and CO2 molecules via noncovalent interactions to ease nucleophilic attack on CO2.
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Affiliation(s)
- Yusif Abdullayev
- Department of Chemical Engineering, Baku Engineering University, Hasan Aliyev str. 120, Baku, Absheron, AZ0101, Azerbaijan.
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences, Hojaly ave. 30, Baku, AZ1025, Azerbaijan
| | - Nazani Karimova
- Department of Chemical Engineering, Baku Engineering University, Hasan Aliyev str. 120, Baku, Absheron, AZ0101, Azerbaijan.
| | - Leonardo A Schenberg
- Department of Fundamental Chemistry Institute of Chemistry, University of São Paulo Av. Prof. Lineu Prestes, 748 05508-000, São Paulo, SP, Brazil
| | - Lucas C Ducati
- Department of Fundamental Chemistry Institute of Chemistry, University of São Paulo Av. Prof. Lineu Prestes, 748 05508-000, São Paulo, SP, Brazil
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY, 14260-3000, USA
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3
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Israfilova Z, Taslimi P, Gülçin İ, Abdullayev Y, Farzaliyev V, Karaman M, Sujayev A, Alwasel SH. Some Thiocyanate Containing Heterocyclic Compounds: Synthesis, Bioactivity and Molecular Docking Study. ChemistrySelect 2023. [DOI: 10.1002/slct.202203653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Zubeyda Israfilova
- Laboratory of Physiologically Active Organic Compounds Institute of Chemistry of Additives 1029 Baku Azerbaijan
| | - Parham Taslimi
- Department of Biotechnology Faculty of Science Bartin University 74100- Bartin Turkey
| | - İlhami Gülçin
- Department of Chemistry Faculty of Sciences Atatürk University 25240 -Erzurum Turkey
| | - Yusif Abdullayev
- Institute of Petrochemical Processes 1025 Baku Azerbaijan
- Baku Engineering University 0101- Baku Azerbaijan
| | - Vagif Farzaliyev
- Laboratory of Physiologically Active Organic Compounds Institute of Chemistry of Additives 1029 Baku Azerbaijan
| | - Muhammet Karaman
- Department of Molecular Biology and Genetics Faculty of Arts and Science Kilis 7 Aralık University 79000- Kilis Turkey
| | - Afsun Sujayev
- Laboratory of Physiologically Active Organic Compounds Institute of Chemistry of Additives 1029 Baku Azerbaijan
| | - Saleh H. Alwasel
- Department of Zoology College of Science King Saud University 11451- Riyadh Saudi Arabia
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Abdullayev Y, Javadova V, Valiyev I, Talybov A, Salmanov C, Autschbach J. Ionic Liquid-Mediated Urea Pyrolysis to Cyanuric Acid: Experimental Protocol and Mechanistic Insights. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02791] [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]
Affiliation(s)
- Yusif Abdullayev
- Department of Chemical Engineering, Baku Engineering University, Hasan Aliyev Str. 120, Baku, Absheron AZ0101, Azerbaijan
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences, Hojaly Ave. 30, Baku AZ1025, Azerbaijan
| | - Valentina Javadova
- Department of Chemical Engineering, Baku Engineering University, Hasan Aliyev Str. 120, Baku, Absheron AZ0101, Azerbaijan
| | - Isa Valiyev
- Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein Str. 2, D-57068 Siegen, Germany
| | - Avtandil Talybov
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences, Hojaly Ave. 30, Baku AZ1025, Azerbaijan
| | - Cavanshir Salmanov
- Department of Chemical Engineering, Baku Engineering University, Hasan Aliyev Str. 120, Baku, Absheron AZ0101, Azerbaijan
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, New York 14260-3000, United States
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5
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Shahraki M, Darijani M, Mahmoudi F, Gorgichi F. Effect of Hydroxyl Group of Catalyst on Formation of 2-Phenyl-Benzimidazole: A Theoretical Elucidation of Mechanism. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2117207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Mehdi Shahraki
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Mahdieh Darijani
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Fatemeh Mahmoudi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
| | - Faezeh Gorgichi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, Zahedan, Iran
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Choudhury S, Jena S, Sahoo DK, Shekh S, Kar RK, Dhakad A, Gowd KH, Biswal HS. Gram-Scale Synthesis of 1,8-Naphthyridines in Water: The Friedlander Reaction Revisited. ACS OMEGA 2021; 6:19304-19313. [PMID: 34337267 PMCID: PMC8320145 DOI: 10.1021/acsomega.1c02798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
The products of the Friedlander reaction, i.e., 1,8-naphthyridines, have far-reaching impacts in materials science, chemical biology, and medicine. The reported synthetic methodologies elegantly orchestrate the diverse synthetic routes of naphthyridines but require harsh reaction conditions, organic solvents, and expensive metal catalysts. Here, we introduce gram-scale synthesis of 1,8-naphthyridines in water using an inexpensive and biocompatible ionic liquid (IL) as a catalyst. This is the first-ever report on the synthesis of naphthyridines in water. This is a one-step reaction, and the product separation is relatively easy. The choline hydroxide (ChOH) is used as a metal-free, nontoxic, and water-soluble catalyst. In comparison to other catalysts reported in the literature, ChOH has the advantage of forming an additional hydrogen bond with the reactants, which is the vital step for the reaction to happen in water. Density functional theory (DFT) and noncovalent interaction (NCI) plot index analysis provide the plausible reaction mechanism for the catalytic cycle and confirm that hydrogen bonds with the IL catalyst are pivotal to facilitate the reaction. Molecular docking and molecular dynamics (MD) simulations are also performed to demonstrate the potentialities of the newly synthesized products as drugs. Through MD simulations, it was established that the tetrahydropyrido derivative of naphthyridine (10j) binds to the active sites of the ts3 human serotonin transporter (hSERT) (PDB ID: 6AWO) without perturbing the secondary structure, suggesting that 10j can be a potential preclinical drug candidate for hSERT inhibition and depression treatment.
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Affiliation(s)
- Shubhranshu
Shekhar Choudhury
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni,
Khurda, 752050 Bhubaneswar, India
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Subhrakant Jena
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni,
Khurda, 752050 Bhubaneswar, India
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Dipak Kumar Sahoo
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni,
Khurda, 752050 Bhubaneswar, India
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Shamasoddin Shekh
- Department
of Chemistry, Central University of Karnataka, Kalaburagi 585367, Karnataka, India
| | - Rajiv K. Kar
- Fritz
Haber Center for Molecular Dynamics, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 9190401, Israel
| | - Ambuj Dhakad
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni,
Khurda, 752050 Bhubaneswar, India
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - Konkallu Hanumae Gowd
- Department
of Chemistry, Central University of Karnataka, Kalaburagi 585367, Karnataka, India
| | - Himansu S. Biswal
- School
of Chemical Sciences, National Institute
of Science Education and Research (NISER), PO-Bhimpur-Padanpur, Via-Jatni,
Khurda, 752050 Bhubaneswar, India
- Homi
Bhabha National Institute, Training School Complex, Anushakti Nagar, Mumbai 400094, India
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7
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Cuesta Calvo PV, Rodrigues Batista P, Rodrigues de Oliveira Silva R, Converti A, Al Arni S, Solisio C, Ducati LC, Alves Palma MS. Flow Synthesis of 2‐[Methyl(pyridin‐2‐yl)amino]ethanol: An Experimental and Computational Study. Chem Eng Technol 2020. [DOI: 10.1002/ceat.202000423] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Paulo Victor Cuesta Calvo
- University of São Paulo School of Pharmaceutical Sciences Av. Prof. Lineu Prestes, 580 – Butantã 05508-000 São Paulo SP Brazil
| | - Patrick Rodrigues Batista
- University of São Paulo Institute of Chemistry Av. Prof. Lineu Prestes, 748 – Butantã 05508-000 São Paulo SP Brazil
| | | | - Attilio Converti
- University of Genoa, Pole of Chemical Engineering Department of Civil, Chemical and Environmental Engineering via Opera Pia 15 16145 Genoa Italy
| | - Saleh Al Arni
- University of Ha'il Department of Chemical Engineering College of Engineering P.O. Box 2440 81441 Ha'il Saudi Arabia
| | - Carlo Solisio
- University of Genoa, Pole of Chemical Engineering Department of Civil, Chemical and Environmental Engineering via Opera Pia 15 16145 Genoa Italy
| | - Lucas C. Ducati
- University of São Paulo Institute of Chemistry Av. Prof. Lineu Prestes, 748 – Butantã 05508-000 São Paulo SP Brazil
| | - Mauri Sergio Alves Palma
- University of São Paulo School of Pharmaceutical Sciences Av. Prof. Lineu Prestes, 580 – Butantã 05508-000 São Paulo SP Brazil
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8
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Hasanov EE, Rahimov RA, Abdullayev Y, Asadov ZH, Ahmadova GA, Isayeva AM, Yolcuyeva U, Zubkov FI, Autschbach J. Counterion-coupled gemini surfactants based on propoxylated hexamethylenediamine and fatty acids: Theory and application. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Soni J, Sethiya A, Sahiba N, Agarwal DK, Agarwal S. Contemporary Progress in the Synthetic Strategies of Imidazole and its Biological Activities. Curr Org Synth 2020; 16:1078-1104. [PMID: 31984918 DOI: 10.2174/1570179416666191007092548] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 08/16/2019] [Accepted: 08/30/2019] [Indexed: 12/14/2022]
Abstract
Heterocyclic compounds are pervasive in many areas of life and one of the heterocycles, imidazole is a unique heterocyclic five-membered aromatic compound having two sp2 hybridized nitrogen atoms. Its integral name is 1, 3 diazole and previously, it was known as glyoxalin. This moiety has achieved a considerable place among scientists in recent years by reason of its divergent synthetic strategies and uncommon biological and pharmacological activities, for example, anti-convulsant, anti-microbial, anti-cancer, anti-inflammatory, anti-tumor, anti-viral, anti-ulcer, analgesic, etc. Due to distinct therapeutic actions, it is still an engrossed area of research. Researchers currently are inventing new greener methods to synthesize its derivatives and to improve its pharmacological activities. The purpose of this review is to study the literature that can help researchers to explore this area, its prevailing program for synthesis in environmentally friendly conditions and biological profile throughout past decades.
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Affiliation(s)
- Jay Soni
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU, Udaipur 313001, India
| | - Ayushi Sethiya
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU, Udaipur 313001, India
| | - Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU, Udaipur 313001, India
| | | | - Shikha Agarwal
- Synthetic Organic Chemistry Laboratory Department of Chemistry, MLSU, Udaipur 313001, India
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10
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Hasanov EE, Rahimov RA, Abdullayev Y, Asadov ZH, Ahmadova GA, Isayeva AM, Ahmadbayova SF, Zubkov FI, Autschbach J. New class of cocogem surfactants based on hexamethylenediamine, propylene oxide, and long chain carboxylic acids: Theory and application. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.02.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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11
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Abdullayev Y, Mammadov A, Karimova N, Talybov A, Yolchuyeva U, Autschbach J. Construction of New Azo‐group Containing Polycyclic Imidazole Derivatives: Computational Mechanistic, Structural, and Fluorescence Studies. ChemistrySelect 2020. [DOI: 10.1002/slct.202000949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yusif Abdullayev
- Department of Chemical Engineering Baku Engineering University Hasan Aliyev str. 120, Baku Absheron AZ0101 Azerbaijan
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Ayaz Mammadov
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Nazani Karimova
- Department of Chemical Engineering Baku Engineering University Hasan Aliyev str. 120, Baku Absheron AZ0101 Azerbaijan
| | - Avtandil Talybov
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Ulviyya Yolchuyeva
- Institute of Petrochemical Processes, Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo New York 14260-3000 United States
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12
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Computational investigation of catalytic effects of CX 3COOH (X = F,Cl,H) on the three-component cyclocondensation reaction. J Mol Model 2019; 25:173. [PMID: 31129725 DOI: 10.1007/s00894-019-4059-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 04/30/2019] [Indexed: 01/19/2023]
Abstract
The mechanism of acetic acid (AA), trifluoroacetic acid (TFA), and trichloroacetic acid (TCA) catalyzed three-component cyclocondensation reaction to (4S,6S)-4,6-diphenyl-1,3,5-triazinane-2-thione was determined via density functional calculations. Based on the potential energy surface diagram, TCA was found to be a reasonable catalyst [energy span (δG) is 2 kcal mol-1 less than TFA and AA] for the reaction. An energetic span model implies that TFA and AA show the same catalytic performance. The impact of the presence of halogen atoms in TFA and TCA catalysts is quantified via energy barriers. Graphical Abstract Ranking catalytic efficiency of OTC triazinane-2-thione formation Graphical Abstract contains poor quality and small text inside the artwork. Please do not re-use the file that we have rejected or attempt to increase its resolution and re-save. It is originally poor, therefore, increasing the resolution will not solve the quality problem. We suggest that you provide us the original format. We prefer replacement figures containing vector/editable objects rather than embedded images. Preferred file formats are eps, ai, tiff and pdf.It is attached as tiff format.
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13
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Valiyev I, Abdullayev Y, Yagubova S, Baybekov S, Salmanov C, Autschbach J. Experimental and computational study of metal-free Brønsted acidic ionic liquid catalyzed benzylic C(sp3) H bond activation and C N, C C cross couplings. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.02.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rossi R, Angelici G, Casotti G, Manzini C, Lessi M. Catalytic Synthesis of 1,2,4,5‐Tetrasubstituted 1
H
‐Imidazole Derivatives: State of the Art. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801381] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Renzo Rossi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gaetano Angelici
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Gianluca Casotti
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Chiara Manzini
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Marco Lessi
- Dipartimento di Chimica e Chimica IndustrialeUniversity of Pisa via G. Moruzzi 13 56124 Pisa Italy
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Alinezhad H, Tajbakhsh M, Maleki B, Pourshaban Oushibi F. Acidic Ionic Liquid [H-NP]HSO4 Promoted One-Pot Synthesis of Dihydro-1H-Indeno[1,2-b]pyridines and Polysubstituted Imidazoles. Polycycl Aromat Compd 2019. [DOI: 10.1080/10406638.2018.1557707] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | | | - Behrooz Maleki
- Department of Chemistry, Hakim Sabzevari University, Sabzevar, Iran
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16
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Abdullayev Y, Abbasov V, Ducati LC, Talybov A, Autschbach J. Ionic Liquid Solvation versus Catalysis: Computational Insight from a Multisubstituted Imidazole Synthesis in [Et 2NH 2][HSO 4]. ChemistryOpen 2016; 5:460-469. [PMID: 27777839 PMCID: PMC5062012 DOI: 10.1002/open.201600066] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Indexed: 12/12/2022] Open
Abstract
The mechanisms of a tetrasubstituted imidazole [2‐(2,4,5‐triphenyl‐1 H‐imidazol‐1‐yl)ethan‐1‐ol] synthesis from benzil, benzaldehyde, ammonium acetate, and ethanolamine in [Et2NH2][HSO4] ionic liquid (IL) are studied computationally. The effects of the presence of the cationic and anionic components of the IL on transition states and intermediate structures, acting as a solvent versus as a catalyst, are determined. In IL‐free medium, carbonyl hydroxylation when using a nucleophile (ammonia) proceeds with a Gibbs free energy (ΔG≠) barrier of 49.4 kcal mol−1. Cationic and anionic hydrogen‐bond solute–solvent interactions with the IL decrease the barrier to 35.8 kcal mol−1. [Et2NH2][HSO4] incorporation in the reaction changes the nature of the transition states and decreases the energy barriers dramatically, creating a catalytic effect. For example, carbonyl hydroxylation proceeds via two transition states, first proton donation to the carbonyl (ΔG≠=9.2 kcal mol−1) from [Et2NH2]+, and then deprotonation of ammonia (ΔG≠=14.3) via Et2NH. Likewise, incorporation of the anion component [HSO4]− of the IL gives comparable activation energies along the same reaction route and the lowest transition state for the product formation step. We propose a dual catalytic IL effect for the mechanism of imidazole formation. The computations demonstrate a clear distinction between IL solvent effects on the reaction and IL catalysis.
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Affiliation(s)
- Yusif Abdullayev
- Department of Chemical Engineering Qafqaz University Hasan Aliyev Str. 120 Baku Absheron AZ0101 Azerbaijan; Institute of Petrochemical Processes Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Vagif Abbasov
- Institute of Petrochemical Processes Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Lucas C Ducati
- Department of Fundamental Chemistry Institute of Chemistry University of São Paulo Av. Prof. Lineu Prestes, 748 05508-000 São Paulo Brazil
| | - Avtandil Talybov
- Department of Chemical Engineering Qafqaz University Hasan Aliyev Str. 120 Baku Absheron AZ0101 Azerbaijan; Institute of Petrochemical Processes Azerbaijan National Academy of Sciences Baku AZ1025 Azerbaijan
| | - Jochen Autschbach
- Department of Chemistry University at Buffalo State University of New York Buffalo NY 14260-3000 USA
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