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In Melting Points We Trust: A Review on the Misguiding Characterization of Multicomponent Reactions Adducts and Intermediates. Molecules 2022; 27:molecules27217552. [DOI: 10.3390/molecules27217552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/25/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022] Open
Abstract
We discuss herein the problems associated with using melting points to characterize multicomponent reactions’ (MCRs) products and intermediates. Although surprising, it is not rare to find articles in which these MCRs final adducts (or their intermediates) are characterized solely by comparing melting points with those available from other reports. A brief survey among specialized articles highlights serious and obvious problems with this practice since, for instance, cases are found in which as many as 25 quite contrasting melting points have been attributed to the very same MCR adduct. Indeed, it seems logical to assume that the inherent non-confirmatory nature of melting points could be vastly misleading as a protocol for structural confirmation, but still many publications (also in the Q1 and Q2 quartiles) insist on using it. This procedure contradicts best practices in organic synthesis, and articles fraught with limitations and misleading conclusions have been published in the MCRs field. The drawbacks inherent to this practice are indeed serious and have misguided MCRs advances. We therefore suggest some precautions aimed at avoiding future confusions.
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Tantray A, Rode N, Terdale S. Synthesis, Molecular docking, and in silico ADME Studies of Dihydropyrimidine Derivatives using Tetrabutylphosphonium Methanesulphonate Ionic Liquid as a catalyst Under Solvent Free Conditions. CAN J CHEM 2022. [DOI: 10.1139/cjc-2022-0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
This paper describes the synthesis and characterization of tetrabutylphosphonium methanesulphonate ionic liquid and its use for the first time as a catalyst in multicomponent reaction for one-pot synthesis of Dihydropyrimidine derivatives from various aromatic aldehydes, methyl or ethyl acetoacetate and urea or thio-urea under the solvent-free conditions at 120 oC. About twenty-one different dihydropyrimidine derivatives have been synthesized in excellent yields. The advantage of this method is a solvent-free condition, the requirement of a small amount of catalyst, shorter reaction time, easy workup procedure and non-involvement of any hazardous organic solvent and toxic catalyst. This catalyst was easily prepared and showed excellent level of reusability. Also the molecular docking study was performed to evaluate interactions between the active compounds with Leishmania Pteridine reductase 1(PTR1). Further the theoretical evaluation of ADME properties in silico was investigated for their oral bioavailability to predict the safer efficacy of the synthesized compounds.
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Affiliation(s)
- Aafaq Tantray
- Savitribai Phule Pune University, 29638, Chemistry, Pune, India
| | - Nitin Rode
- Savitribai Phule Pune University, 29638, Chemistry, Pune, India
| | - Santosh Terdale
- Savitribai Phule Pune University, 29638, Department of Chemistry, Pune, Maharashtra, India, 411007
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Dhameliya TM, Nagar PR, Bhakhar KA, Jivani HR, Shah BJ, Patel KM, Patel VS, Soni AH, Joshi LP, Gajjar ND. Recent advancements in applications of ionic liquids in synthetic construction of heterocyclic scaffolds: A spotlight. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118329] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Zarenezhad E, Farjam M, Iraji A. Synthesis and biological activity of pyrimidines-containing hybrids: Focusing on pharmacological application. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129833] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Aher DS, Khillare KR, Chavan LD, Shankarwar SG. Tungsten-substituted molybdophosphoric acid impregnated with kaolin: effective catalysts for the synthesis of 3,4-dihydropyrimidin-2(1 H)-ones v ia biginelli reaction. RSC Adv 2021; 11:2783-2792. [PMID: 35424238 PMCID: PMC8693839 DOI: 10.1039/d0ra09811f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 01/04/2021] [Indexed: 11/21/2022] Open
Abstract
A series of highly reusable heterogeneous catalysts (10-25 wt% PMo7W5/kaolin), consisting of tungsten-substituted molybdophosphoric acid, H3PMo7W5O40·24H2O (PMo7W5) impregnated with acid treated kaolin clay was synthesized by the wetness impregnation method. The newly synthesized catalyst was fully characterized using inductively coupled plasma-atomic emission spectroscopy (ICP-AES), Fourier transform infrared (FT-IR), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) analysis and thermal analysis (TG-DTA). The synthesized materials were shown to be efficient in the synthesis of 3,4-dihydropyrimidin-2(1H)-ones via Biginelli reaction under solvent-free conditions. The obtained results indicate that 20% PMo7W5/kaolin catalyst showed remarkably enhanced catalytic activity compared to the bulk PMo7W5 catalyst, and also the (10 and 15%) PMo7W5 catalyst supported on kaolin clay.
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Affiliation(s)
- Dipak S Aher
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University Aurangabad 431 004 M.S. India
| | - Kiran R Khillare
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University Aurangabad 431 004 M.S. India
| | | | - Sunil G Shankarwar
- Department of Chemistry, Dr Babasaheb Ambedkar Marathwada University Aurangabad 431 004 M.S. India
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Santos MC, Uemi M, Gonçalves NS, Bizeto MA, Camilo FF. Niobium chloride in 1−n−butyl−3−methylimidazolium chloride ionic liquid as a catalyst for biginelli reaction. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128653] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Allahresani A, Sangani MM, Nasseri MA, Hemmat K. CoFe2O4@SiO2-NH2-CoII NPs: An effective magnetically recoverable catalyst for Biginelli reaction. INORG CHEM COMMUN 2020. [DOI: 10.1016/j.inoche.2020.107988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ehsani-Nasab Z, Ezabadi A. 1, 1'-Sulfinyldiethylammonium Bis (Hydrogen Sulfate) as a Recyclable Dicationic Ionic Liquid Catalyst for the Efficient Solvent-free Synthesis of 3, 4-Dihydropyrimidin-2(1H)-ones via Biginelli Reaction. Comb Chem High Throughput Screen 2020; 23:157-167. [PMID: 31985368 DOI: 10.2174/1386207323666200127113743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 12/05/2019] [Accepted: 12/31/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE A facile and efficient method for synthesis of 3, 4-dihydropyrimidin-2(1H)-ones via Biginelli reaction catalyzed by a novel dicationic Brönsted acidic ionic liquid, [(EtNH2)2SO][HSO4]2, has been successfully developed. MATERIALS AND METHODS 3, 4-Dihydropyrimidin-2(1H)-ones were synthesized through one-pot condensation of aromatic aldehydes, ethyl acetoacetate, and urea under solvent-free conditions using [(EtNH2)2SO][HSO4]2 as a novel catalyst. The progress of the reaction was monitored by thin-layer chromatography (ethyl acetate / n-hexane = 1 / 5). The products have been characterized by IR, 1H NMR, 13C NMR, and also by their melting points. RESULTS In this research, a library of dihydropyrimidinone derivatives was synthesized via Biginelli reaction under solvent-free conditions at 120oC using [(EtNH2)2SO][HSO4]2 as a catalyst. Various aromatic aldehydes, as well as heteroaromatic aldehydes, were employed, affording good to high yields of the corresponding products and illustrating the substrate generality of the present method. In addition, the prepared dicationic Brönsted acidic ionic liquid can be easily recovered and reused. CONCLUSION 1, 1'-Sulfinyldiethylammonium bis (hydrogen sulfate), as a novel dicationic ionic liquid, can act as a highly efficient catalyst for the synthesis of 3, 4-dihydropyrimidin-2(1H)-ones under solvent-free conditions.
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Affiliation(s)
- Zainab Ehsani-Nasab
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Ali Ezabadi
- Department of Chemistry, Faculty of Science, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Deepa, Yadav GD, Aalam MJ, Chaudhary P, Singh S. Synthesis of Dihydropyrimidinones (DHPMs) and Hexahydro Xanthene Catalyzed by 1,4-Diazabicyclo [2.2.2] Octane Triflate Under Solvent-Free Condition. Curr Org Synth 2020; 16:776-786. [PMID: 31984893 DOI: 10.2174/1570179415666181113154232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/05/2018] [Accepted: 10/09/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE DABCO salts were evaluated as catalysts for the Biginelli reaction between 4- methoxybenzaldehyde, urea and ethyl acetoacetate under solvent-free conditions. 1,4-Diazabicyclo [2.2.2] octane triflate was found to be a simple, inexpensive, highly efficient catalyst for Biginelli reaction for a variety aromatic aldehyde with urea and ethyl acetoacetate at 80°C afforded corresponding 3,4-dihydropyrimidinones in 50-99% yields after 30-120 minutes. 1,3-Cyclohexadione was used in place of ethyl acetoacetate in the absence of urea this methodology is giving hexahydro xanthene derivatives in good to excellent yields after 3-4 hours. METHODS DABCO salt 4 (5 mol%), 4-methoxybenzaldehyde (0.73 mmol) and urea (0.73 mmol) were stirred for 10 minutes at 80°C, then ethyl acetoacetate (1.5 equiv.) was added and reaction mixture was stirred at 80°C for specified time. The resulting solution was stirred continuously and progress of the reaction was followed by TLC. The crude reaction mixture was purified by flash column chromatography on silica gel (hexane/ethyl acetate (1:2)) to give pure desired product. RESULTS Reaction conditions of the Biginelli reaction were optimized using 4-methoxybenzaldehyde (0.73 mmol), urea (0.73 mmol), and ethyl acetoacetate (5 equiv.) as model substrates catalyzed by 1,4-Diazabicyclo [2.2.2] octane triflate (5 mol%) in a different solvents, screening of different catalysts and different temperatures. Neat condition was found to be the best for the Biginelli condensation and corresponding 3,4- dihydropyrimidinones was obtained in good to excellent yields. When the reaction was carried out with benzaldehyde derivatives and cyclohexane-1,3-dione in place of ethyl acetoacetate in the absence of urea, solely corresponding hexahydro xanthene derivatives were obtained in 61-91% yields. CONCLUSION In conclusion, we have applied salts of 1,4-Diaza-bicyclo [2.2.2] octane as catalysts in the Biginelli condensation and corresponding 3,4-dihydropyrimidinones were obtained in 50- 99% yields under solvent free conditions. This methodology is having advantages like simple work-up; low loading of catalyst and reaction was performed at moderate temperature under solvent-free conditions.
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Affiliation(s)
- Deepa
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Geeta D Yadav
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Mohd J Aalam
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Pooja Chaudhary
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Surendra Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
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Saikia S, Borah R. One‐Pot Sequential Synthesis of 2‐Amino‐4, 6‐Diaryl Pyrimidines Involving SO
3
H‐Functionalized Piperazinium‐Based Dicationic Ionic Liquids as Homogeneous Catalysts. ChemistrySelect 2019. [DOI: 10.1002/slct.201902060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Susmita Saikia
- Department of Chemical SciencesTezpur University Napaam- 784028, Tezpur India
| | - Ruli Borah
- Department of Chemical Sciences Tezpur University Napaam- 784028, Tezpur India
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A Green Approach for the Synthesis of Coconut Husk Ash –Twisted Graphene Nanocomposites: Novel Catalysts for Solvent‐Free Biginelli Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201803352] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Shumaila AMA, Al-Thulaia AAN. Mini-review on the synthesis of Biginelli analogs using greener heterogeneous catalysis: Recent strategies with the support or direct catalyzing of inorganic catalysts. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1536789] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Mekki S, Krabia L, Mohamed SMS, Saidi-Besbes S. Synthesis of 3,4-Dihydropyrimidin-2(1H)-one Derivatives Using Activated Montmorillonite as Catalyst. LETT ORG CHEM 2018. [DOI: 10.2174/1570178615666180627113617] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An efficient catalytic synthesis of 4-aryl-3,4-dihydropyrimidine-2(1H)-one derivatives using
copper (II), iron (III) and zinc (II) exchanged montmorillonite clays as a catalyst is described. The desired
products were obtained in good yields.
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Affiliation(s)
- Sofiane Mekki
- Laboratoire de Synthese Organique Appliquee LSOA, Universite d'Oran 1 Ahmed Benbella, Departement de Chimie, Bp 1524 El M'Naouer, Oran 31000, Algeria
| | - Lahcen Krabia
- Laboratoire de Synthese Organique Appliquee LSOA, Universite d'Oran 1 Ahmed Benbella, Departement de Chimie, Bp 1524 El M'Naouer, Oran 31000, Algeria
| | - Saleh Mahmoud Saleh Mohamed
- Laboratoire de Synthese Organique Appliquee LSOA, Universite d'Oran 1 Ahmed Benbella, Departement de Chimie, Bp 1524 El M'Naouer, Oran 31000, Algeria
| | - Salima Saidi-Besbes
- Laboratoire de Synthese Organique Appliquee LSOA, Universite d'Oran 1 Ahmed Benbella, Departement de Chimie, Bp 1524 El M'Naouer, Oran 31000, Algeria
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Lage-Estebanez I, Olmo LD, López R, García de la Vega JM. Molecular modeling and physicochemical properties of 1-alkyl-3-methylimidazolium-FeX 4 and -Fe 2 X 7 (X = Cl and Br) magnetic ionic liquids. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Bahekar SP, Sarode PB, Wadekar MP, Chandak HS. Simple and efficient synthesis of 3,4-dihydropyrimidin-2(1 H )-thiones utilizing l -proline nitrate as a proficient, recyclable and eco-friendly catalyst. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2015.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Attri P, Bhatia R, Gaur J, Arora B, Gupta A, Kumar N, Choi EH. Triethylammonium acetate ionic liquid assisted one-pot synthesis of dihydropyrimidinones and evaluation of their antioxidant and antibacterial activities. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2014.05.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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Punica granatum peel: an organocatalyst for green and rapid synthesis of 3,4-dihydropyrimidin-2 (1H)-ones/thiones under solvent-free condition. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2828-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bhatt JD, Chudasama CJ, Patel KD. Microwave Assisted Synthesis of Pyrimidines in Ionic Liquid and Their Potency as Non-Classical Malarial Antifolates. Arch Pharm (Weinheim) 2016; 349:791-800. [PMID: 27528517 DOI: 10.1002/ardp.201600148] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/21/2016] [Accepted: 07/29/2016] [Indexed: 11/07/2022]
Abstract
Synthesis of pyrazole-linked triazolo-pyrimidine hybrids was achieved by employing Biginelli-type reaction methodology in an ionic liquid (triethylammonium acetate) under microwave irradiation. This method proved to be highly efficient and the ionic liquid employed was found recyclable for up to five consecutive cycles. The synthesized molecules were further screened for their antimalarial efficacy screening out the active scaffolds J15, J18, J21, J24, J27, and J30. The active molecules were evaluated in an enzyme inhibition study against the active Plasmodium falciparum dihydrofolate reductase (Pf-DHFR), computationally as well as in vitro, demonstrating their potency as DHFR inhibitors. The active entities were also investigated for their oral bioavailability by predicting ADME properties in silico, indicating good bioavailability.
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Affiliation(s)
- Jaimin D Bhatt
- Chemistry Department, V. P. & R. P. T. P. Science College, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India
| | - Chaitanya J Chudasama
- Department of Biochemistry, Shree Alpesh N. Patel P. G. Institute, Sardar Patel University, Anand, Gujarat, India
| | - Kanuprasad D Patel
- Chemistry Department, V. P. & R. P. T. P. Science College, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India.
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Sattari M, Kamari A, Hashemi H, Mohammadi AH, Ramjugernath D. A group contribution model for prediction of the viscosity with temperature dependency for fluorine-containing ionic liquids. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.04.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hajjami M, Ghiasbeygi E. First catalyst- and solvent-free synthesis of 3,4-dihydropyrimidin-2(1H)-ones and -thiones. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428016030222] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Ionogels Based on Poly(methyl methacrylate) and Metal-Containing Ionic Liquids: Correlation between Structure and Mechanical and Electrical Properties. Int J Mol Sci 2016; 17:391. [PMID: 26999112 PMCID: PMC4813247 DOI: 10.3390/ijms17030391] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 03/07/2016] [Accepted: 03/09/2016] [Indexed: 11/17/2022] Open
Abstract
Ionogels (IGs) based on poly(methyl methacrylate) (PMMA) and the metal-containing ionic liquids (ILs) bis-1-butyl-3-methlimidazolium tetrachloridocuprate(II), tetrachloride cobaltate(II), and tetrachlorido manganate(II) have been synthesized and their mechanical and electrical properties have been correlated with their microstructure. Unlike many previous examples, the current IGs show a decreasing stability in stress-strain experiments on increasing IL fractions. The conductivities of the current IGs are lower than those observed in similar examples in the literature. Both effects are caused by a two-phase structure with micrometer-sized IL-rich domains homogeneously dispersed an IL-deficient continuous PMMA phase. This study demonstrates that the IL-polymer miscibility and the morphology of the IGs are key parameters to control the (macroscopic) properties of IGs.
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Muškinja J, Janković N, Ratković Z, Bogdanović G, Bugarčić Z. Vanillic aldehydes for the one-pot synthesis of novel 2-oxo-1,2,3,4-tetrahydropyrimidines. Mol Divers 2016; 20:591-604. [DOI: 10.1007/s11030-016-9658-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 01/12/2016] [Indexed: 11/28/2022]
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Puripat M, Ramozzi R, Hatanaka M, Parasuk W, Parasuk V, Morokuma K. The Biginelli Reaction Is a Urea-Catalyzed Organocatalytic Multicomponent Reaction. J Org Chem 2015; 80:6959-67. [DOI: 10.1021/acs.joc.5b00407] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Maneeporn Puripat
- Nanoscience
and Technology Program, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Fukui
Institute for Fundamental Chemistry (FIFC), Kyoto University, Kyoto 606-8103, Japan
| | - Romain Ramozzi
- Fukui
Institute for Fundamental Chemistry (FIFC), Kyoto University, Kyoto 606-8103, Japan
| | - Miho Hatanaka
- Fukui
Institute for Fundamental Chemistry (FIFC), Kyoto University, Kyoto 606-8103, Japan
| | - Waraporn Parasuk
- Department
of Chemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Vudhichai Parasuk
- Nanoscience
and Technology Program, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
- Department
of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Keiji Morokuma
- Fukui
Institute for Fundamental Chemistry (FIFC), Kyoto University, Kyoto 606-8103, Japan
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Synthesis of 3,4-dihydropyrimidin-2(1H)-one via one-pot Biginelli reaction under solvent-free conditions. MONATSHEFTE FUR CHEMIE 2015. [DOI: 10.1007/s00706-015-1505-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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25
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Elhamifar D, Nazari E. Preparation of Iron-Containing Schiff Base and Ionic Liquid Based Bifunctional Periodic Mesoporous Organosilica and Its Application in the Synthesis of 3,4-Dihydropyrimidinones. Chempluschem 2015; 80:820-826. [DOI: 10.1002/cplu.201402415] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Indexed: 11/09/2022]
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Martins MAP, Frizzo CP, Tier AZ, Moreira DN, Zanatta N, Bonacorso HG. Update 1 of: Ionic Liquids in Heterocyclic Synthesis. Chem Rev 2014; 114:PR1-70. [DOI: 10.1021/cr500106x] [Citation(s) in RCA: 95] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Marcos A. P. Martins
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Clarissa P. Frizzo
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Aniele Z. Tier
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Dayse N. Moreira
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Nilo Zanatta
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
| | - Helio G. Bonacorso
- Núcleo de Química
de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria-RS, Brazil
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Alvim HGO, Lima TB, de Oliveira AL, de Oliveira HCB, Silva FM, Gozzo FC, Souza RY, da Silva WA, Neto BAD. Facts, Presumptions, and Myths on the Solvent-Free and Catalyst-Free Biginelli Reaction. What is Catalysis for? J Org Chem 2014; 79:3383-97. [DOI: 10.1021/jo5001498] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Haline G. O. Alvim
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Tatiani B. Lima
- Institute
of Chemistry, University of Campinas (Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Aline L. de Oliveira
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Heibbe C. B. de Oliveira
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Fabricio M. Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Fabio C. Gozzo
- Institute
of Chemistry, University of Campinas (Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Roberto Y. Souza
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Wender A. da Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Brenno A. D. Neto
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
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29
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Estager J, Holbrey JD, Swadźba-Kwaśny M. Halometallate ionic liquids – revisited. Chem Soc Rev 2014; 43:847-86. [DOI: 10.1039/c3cs60310e] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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30
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Wang DS, Li GY, Peng YQ. Chloroferrate(III) Ionic Liquid as Recyclable Catalyst for the Acetylation of Alcohols and Phenols and for 1,1-Diacylation of Aldehydes. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.200900123] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Safaei Ghomi J, Teymuri R, Ziarati A. A green synthesis of 3,4-dihydropyrimidine-2(1H)-one/thione derivatives using nanosilica-supported tin(II) chloride as a heterogeneous nanocatalyst. MONATSHEFTE FUR CHEMIE 2013. [DOI: 10.1007/s00706-013-1068-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Wang YL, Luo J, Zhi HZ. Preparation of 3,4-dihydropyrimidones via Biginelli reaction in efficient and recyclable PEG1000-DAIL/toluene catalyst-medium combined thermoregulated biphasic system. Chem Res Chin Univ 2013. [DOI: 10.1007/s40242-013-3087-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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33
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Shaterian HR, Aghakhanizadeh M. BrØnsted Reusable Acidic Ionic Liquids Catalyzed Biginelli Reaction under Solvent-Free Conditions. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.710676] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Hamid Reza Shaterian
- a Department of Chemistry, Faculty of Sciences , University of Sistan and Baluchestan , Zahedan , Iran
| | - Morteza Aghakhanizadeh
- a Department of Chemistry, Faculty of Sciences , University of Sistan and Baluchestan , Zahedan , Iran
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34
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Ghorbani-Choghamarani A, Taghipour T, Azadi G. One-pot, Green and Efficient Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones or Thiones Catalyzed by Citric Acid. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201300118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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35
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Frade RFM, Simeonov S, Rosatella AA, Siopa F, Afonso CAM. Toxicological evaluation of magnetic ionic liquids in human cell lines. CHEMOSPHERE 2013; 92:100-105. [PMID: 23561571 DOI: 10.1016/j.chemosphere.2013.02.047] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 02/07/2013] [Accepted: 02/17/2013] [Indexed: 06/02/2023]
Abstract
Magnetic ionic liquids (MILs) are new solvents with an interesting broad of applications however their toxicity is still an open issue. In this paper we report the toxicity of [C(8)MIM] and [Choline-C(n)] based magnetic ionic liquids assessed in two human cell lines: normal skin fibroblasts (CRL-1502) and colorectal adenocarcinoma cells (CaCo-2), acquiring this last characteristics of human enterocytes after differentiation. The results showed that [CoCl(4)] and [MnCl(4)] are more prone to generate cytotoxicity.
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Affiliation(s)
- Raquel F M Frade
- iMed.UL, Faculdade de Farmácia da Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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36
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Alvim HGO, de Lima TB, de Oliveira HCB, Gozzo FC, de Macedo JL, Abdelnur PV, Silva WA, Neto BAD. Ionic Liquid Effect over the Biginelli Reaction under Homogeneous and Heterogeneous Catalysis. ACS Catal 2013. [DOI: 10.1021/cs400291t] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - Fabio C. Gozzo
- Institute of Chemistry, University of Campinas, Campinas, SP, Brazil
| | - Julio L. de Macedo
- Laboratory of Catalysis, Institute
of Chemistry, University of Brasília, P. O. Box 4478, CEP 70904970, Brasília, DF, Brasil
| | - Patricia V. Abdelnur
- Embrapa Agroenergia, PqEB s/no Avenida W3 Norte (final), Edifício Embrapa Agroenergia,
CEP: 70770-901, P. O. Box 40315
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37
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Gülten Ş. Magnesium Bromide and Magnesium Chloride Hexahydrate Catalyzed One-Pot Synthesis of DihydropyrimidinesviaBiginelli Reaction under Solvent-Free Conditions. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.980] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Şirin Gülten
- Department of Chemistry, Faculty of Arts and Sciences; Çanakkale Onsekiz Mart University; Çanakkale 17020; Turkey
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38
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One-Pot Synthesis of 3,4-Dihydro-2(H)-Pyrimidinones Catalyzed by Reusable Acidic Choline-Based Ionic Liquids. Catal Letters 2013. [DOI: 10.1007/s10562-013-0978-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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1-Methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium Chloride as a New and Green Ionic Liquid Catalyst for One-Pot Synthesis of Dihydropyrimidinones under Solvent-Free Condition. J CHEM-NY 2013. [DOI: 10.1155/2013/834656] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
An efficient and simple method for the preparation of 1-methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium chloride{(MSEI)Cl}as an acidic ionic liquid is described. One-pot multicomponent condensation of 1,3-dicarbonyl compounds, urea/thiourea and aldehydes at 80∘C affords the corresponding compounds in high yields and in short reaction times by using (MSEI)Cl.
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40
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Ramos LM, Ponce de Leon y Tobio AY, dos Santos MR, de Oliveira HCB, Gomes AF, Gozzo FC, de Oliveira AL, Neto BAD. Mechanistic studies on Lewis acid catalyzed Biginelli reactions in ionic liquids: evidence for the reactive intermediates and the role of the reagents. J Org Chem 2012; 77:10184-93. [PMID: 23101501 DOI: 10.1021/jo301806n] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This paper describes the use of common Lewis acids supported in imidazolium-based ionic liquids as the catalysts to promote the Biginelli reaction. The ionic liquid effect and the reaction mechanism are discussed on the basis of nuclear magnetic resonance (NMR), electrospray ionization mass spectrometry (ESI-MS), and theoretical calculations. Indeed, the results showed that the ionic medium plays a fundamental role in the synthesis of biologically active dihydropyrimidinones due to the stabilization of the charged intermediates proposed in the mechanism. When conducted in an ionic liquid as solvent, the reaction mechanism is more complex than in other Lewis acid catalyzed Biginelli reactions.
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Affiliation(s)
- Luciana M Ramos
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute, Campus Universitário Darcy Ribeiro, CEP 70904-970, P.O. Box 4478, Brasília DF, Brazil
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41
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Xia Y, Yan C, Li Z, Gao H, Sun H, Shen Q, Zhang Y. Synthesis, structure of iron(III)-containing imidazolium salts and their catalytic activity in the alkylation of aryl Grignard reagents. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5513-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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42
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Khabazzadeh H, Kermani ET, Jazinizadeh T. An efficient synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by molten [Et3NH][HSO4]. ARAB J CHEM 2012. [DOI: 10.1016/j.arabjc.2010.09.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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43
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A novel amino acid functionalized ionic liquid promoted one-pot solvent-free synthesis of 3,4-dihydropyrimidin-2-(1H)-thiones. RESEARCH ON CHEMICAL INTERMEDIATES 2012. [DOI: 10.1007/s11164-012-0689-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Fu Z, Shen T, Du Z, Qiao Z, Song Q. An Efficient One-Pot Synthesis of 3,4-Dihydropyrimidin-2-(1H)-Ones/Thiones Catalysed by 2-Thienylboronic Acid. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13318375421203] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A simple efficient one-pot three-component condensation for synthesis of 3,4-dihydropyrimidin-2-( 1H)-ones/thiones in good to excellent yields using 2-thienylboronic acid as a catalyst was described.
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Affiliation(s)
- Zhenfang Fu
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Tianhua Shen
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Zhiping Du
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Zhiguo Qiao
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Qingbao Song
- College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
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45
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MOGHADDAS M, DAVOODNIA A, HERAVI MM, TAVAKOLI-HOSEINI N. Sulfonated Carbon Catalyzed Biginelli Reaction for One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones and -thiones. CHINESE JOURNAL OF CATALYSIS 2012. [DOI: 10.1016/s1872-2067(11)60377-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Mohammadzadeh-Dehsorkh N, Davoodnia A, Tavakoli-Hoseini N, Moghaddas M. An Environmentally Benign One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones and -thiones Using Tetrabutylammonium Hexatungstate [TBA]2[W6O19] as a Recyclable Catalyst. ACTA ACUST UNITED AC 2011. [DOI: 10.1080/15533174.2011.591358] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
| | - Abolghasem Davoodnia
- a Department of Chemistry, Mashhad Branch , Islamic Azad University , Mashhad, Iran
| | | | - Maryam Moghaddas
- a Department of Chemistry, Mashhad Branch , Islamic Azad University , Mashhad, Iran
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47
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Yue C, Fang D, Liu L, Yi TF. Synthesis and application of task-specific ionic liquids used as catalysts and/or solvents in organic unit reactions. J Mol Liq 2011. [DOI: 10.1016/j.molliq.2011.09.001] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Joseph JK, Jain SL, Singhal S, Sain B. Efficient Synthesis of 3,4-Dihydropyrimidinones in 1-n-Butyl-3-methylimidazolium Tetrachloroindate (BMI·InCl4). Ind Eng Chem Res 2011. [DOI: 10.1021/ie200522t] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jomy K. Joseph
- Chemical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Dehradun-248005, India
| | - Suman L. Jain
- Chemical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Dehradun-248005, India
| | - Sweety Singhal
- Chemical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Dehradun-248005, India
| | - Bir Sain
- Chemical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Dehradun-248005, India
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49
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Hajipour AR, Seddighi M. Pyridinium-Based Brønsted Acidic Ionic Liquid as a Highly Efficient Catalyst for One-Pot Synthesis of Dihydropyrimidinones. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.523488] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Abdol R. Hajipour
- a Department of Pharmacology , University of Wisconsin, Medical School , Madison , Wisconsin , USA
- b Department of Chemistry , Isfahan University of Technology , Isfahan , Iran
| | - Mohadeseh Seddighi
- b Department of Chemistry , Isfahan University of Technology , Isfahan , Iran
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50
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Chiappe C, Rajamani S. Structural Effects on the Physico‐Chemical and Catalytic Properties of Acidic Ionic Liquids: An Overview. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100432] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Cinzia Chiappe
- Department of Chemistry and Industrial Chemistry, University of Pisa, via Bonanno 33, 56126 Pisa, Italy, Fax: +39‐050‐2219660
| | - Sunita Rajamani
- Department of Chemistry and Industrial Chemistry, University of Pisa, via Bonanno 33, 56126 Pisa, Italy, Fax: +39‐050‐2219660
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