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Cavaca LS, Santos TMP, Ravasco JMJM, Gomes RFA, Afonso CAM. High-Pressure Promoted Nazarov-like Electrocyclization Enables Access to trans-4,5-Diamino-cyclopent-2-enones Bearing Electron-Poor Anilines. J Org Chem 2024; 89:6677-6683. [PMID: 38692583 PMCID: PMC11110005 DOI: 10.1021/acs.joc.3c01040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 11/01/2023] [Accepted: 11/13/2023] [Indexed: 05/03/2024]
Abstract
Unlike secondary alkyl amines and electron-rich anilines, secondary electron-poor anilines are challenging amine sources to explore the chemical space of Lewis acid-catalyzed condensation-based transformations with furfural. In this work, we report the efficient synthesis of trans-4,5-diamino cyclopentenones (DCP) using a high-pressure promoted Nazarov-like electrocyclization of Stenhouse salts arising from the Sc(III)-catalyzed condensation of furfural with secondary electron-poor anilines. The reaction enables access to otherwise difficult-to-access DCP and compatibility with a large scope of alkyl and aryl secondary amines. A 2- to 18-fold increase in yields for electron-poor anilines was highlighted using this approach in the synthesis of a pharmacologically active compound.
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Affiliation(s)
- Lídia
A. S. Cavaca
- Research Institute for Medicines (iMed.ULisboa),
Faculty of Farmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Tiago M. P. Santos
- Research Institute for Medicines (iMed.ULisboa),
Faculty of Farmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Joao M. J. M. Ravasco
- Research Institute for Medicines (iMed.ULisboa),
Faculty of Farmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Rafael F. A. Gomes
- Research Institute for Medicines (iMed.ULisboa),
Faculty of Farmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisbon, Portugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa),
Faculty of Farmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisbon, Portugal
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2
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Kumar PV, Madhumitha G. Clay based heterogeneous catalysts for carbon-nitrogen bond formation: a review. RSC Adv 2024; 14:4810-4834. [PMID: 38318622 PMCID: PMC10840681 DOI: 10.1039/d3ra06358e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/10/2024] [Indexed: 02/07/2024] Open
Abstract
Clay and modified clay-based catalysts are widely used in organic transformation. Owing to the interlayer ions and good ion exchange capacity of clay, replacement with another ion and incorporation of different nanomaterials can be done. Due to these significant properties of clay, it can be utilized in the synthesis of various organic compounds. Carbon-nitrogen bonded compounds possess diverse applications in different fields. These compounds are prepared using different solid acid heterogeneous catalysts. This review presents a detailed discussion on clay used for the carbon-nitrogen bond formation reaction, such as the Biginelli reaction and A3 and KA2 coupling reactions. Additionally, other C-N bond formation reactions using various clay-based catalysts such as bentonite, montmorillonite, hydrotalcite and halloysite clay with various metals, metal oxides, Kegging type heteropoly acid and various nanomaterial incorporated clay heterogeneous catalysts are discussed.
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Affiliation(s)
- P Vinoth Kumar
- Chemistry of Heterocycles & Natural Product Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore Tamilnadu India
| | - G Madhumitha
- Chemistry of Heterocycles & Natural Product Research Laboratory, Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology Vellore Tamilnadu India
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3
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Rambabu G, Kiran YBR, Tarakeswar Y, Khalivulla SI, Barbosa LCA, Vijayakumar V. Montmorillonite K10 Clay Catalyzed Synthesis of Novel β-Aminocarbonyl Compounds and Their Biological Evaluation. Chem Biodivers 2022; 19:e202200669. [PMID: 36098278 DOI: 10.1002/cbdv.202200669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022]
Abstract
An efficient and reusable green catalyst for the synthesis of β-aminocarbonyl compounds has been developed. In this new and greener approach, β-aminocarbonyl compounds (1a-1r) were obtained by Montmorillonite K10 clay catalyzed reaction of aryl amines, aliphatic/aromatic aldehydes and β-ketoesters. Molecular docking investigations were performed for all compounds (1a-1r) with the proteins PDB ID: 1JIJ and 1KZN for S. aureus and E. coli, respectively. For all compounds good to strong interactions with the active sites were observed. The biological activities of β-aminocarbonyl compounds were further assessed for their antibacterial and antioxidant activities. The results confirmed that β-aminocarbonyl compounds could be further developed into new drugs with potent antibacterial and antioxidant activities.
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Affiliation(s)
- Gottimukkala Rambabu
- Applied Chemistry Research Lab, Department of Chemistry, Sree Vidyanikethan Engineering College, Tirupati, India.,Center for Organic and Medicinal Chemistry, VIT University, Vellore, India
| | - Yarragudi Bathal Reddy Kiran
- Applied Chemistry Research Lab, Department of Chemistry, Sree Vidyanikethan Engineering College, Tirupati, India
| | - Yadamari Tarakeswar
- Applied Chemistry Research Lab, Department of Chemistry, Sree Vidyanikethan Engineering College, Tirupati, India
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A. Gomes RF, Ravasco JMJM, Andrade KHS, Coelho JAS, Moreira R, Oliveira R, Nogueira F, Afonso CAM. Tandem Thio-Michael Addition/Remote Lactone Activation of 5-Hydroxymethylfurfural-Derived δ-Lactone-Fused Cyclopentenones. CHEMSUSCHEM 2022; 15:e202102204. [PMID: 35040553 PMCID: PMC9401029 DOI: 10.1002/cssc.202102204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/02/2021] [Indexed: 06/14/2023]
Abstract
The creation of structurally diverse chemical entities from fairly simple biorefinery products remains a challenge. In this work 5-hydroxymethylfurfural (HMF) was identified as a key synthon for preparing highly complex cyclopentenones (CP) via tandem 1,4-addition/elimination/remote lactone activation to external O- and N-nucleophiles in δ-lactone-fused-CPs hotspots. This scaffold was also reactive enough to be incorporated into model cysteine-peptides in low concentrations, paving the way to a potential translation generating complexity in the synthesis of small peptides. The new enones also exhibited activity against intraerythrocytic Plasmodium falciparum (IC50 =1.32 μm).
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Affiliation(s)
- Rafael F. A. Gomes
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Joao M. J. M. Ravasco
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Késsia H. S. Andrade
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Jaime A. S. Coelho
- Centro de Química Estrutural, Institute of Molecular SciencesFaculdade de CiênciasUniversidade de LisboaCampo Grande1749-016LisboaPortugal
| | - Rui Moreira
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Rafael Oliveira
- Global Health and Tropical MedicineGHTMInstituto de Higiene e Medicina TropicalIHMTUniversidade NOVA de LisboaUNLRua da Junqueira, 101349-008LisboaPortugal
- Institute of Tropical Medicine and International HealthCharité – Charité-Universitätsmedizin BerlinAugustenburger Platz 1 (Campus Adress: Südring 2–3)13353BerlinGermany
| | - Fátima Nogueira
- Global Health and Tropical MedicineGHTMInstituto de Higiene e Medicina TropicalIHMTUniversidade NOVA de LisboaUNLRua da Junqueira, 101349-008LisboaPortugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
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The Highly Efficient Synthesis of 1,2-Disubstituted Benzimidazoles Using Microwave Irradiation. Molecules 2022; 27:molecules27051751. [PMID: 35268852 PMCID: PMC8911685 DOI: 10.3390/molecules27051751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/17/2022] [Accepted: 03/05/2022] [Indexed: 11/17/2022] Open
Abstract
The benzimidazole ring of the heterocyclic pharmacophores is one of the most widespread and studied systems in nature. The benzimidazole derivative synthesis study is a crucial point for the development of a clinically available benzimidazole-based drug. Here, we report a simple microwave assisted method for the synthesis of 1,2-disubstituted benzimidazoles. The combination of the molar ratio of N-phenyl-o-phenylenediamine:benzaldehyde (1:1) using microwave irradiation and only 1% mol of Er(OTf)3 provides an efficient and environmental mild access to a diversity of benzimidazoles under solvent-free conditions. The proposed method allows for the obtainment of the desired products in a short time and with very high selectivity.
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Angajala G, Aruna V, Pavan P, Reddy PG. Ultrasound promoted montmorillonite K-10 catalyzed synthesis, characterization, molecular modelling, SAR and hypoglycemic studies of new rhodanine bejeweled acridine analogues. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Gomes RFA, Isca VMS, Andrade K, Rijo P, Afonso CAM. Functionalized Cyclopentenones and an Oxime Ether as Antimicrobial Agents. ChemMedChem 2021; 16:2781-2785. [PMID: 34115919 PMCID: PMC8518054 DOI: 10.1002/cmdc.202100369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Indexed: 11/24/2022]
Abstract
Several naturally occurring cyclopentenones, such as palmenones and nigrosporiones, exhibit antimicrobial activity. Herein we describe the antimicrobial activity of cyclopentenones and derivatives that can be easily accessed from biomass derivatives furfural and 5-hydroxymethylfurfural. Upon screening a range of functionalized trans-diamino-cyclopentenones (DCPs) and δ-lactone-fused cyclopentenones (LCPs), an oxime ether derivative of DCP was identified that exhibited remarkable antimicrobial activity against Gram-positive bacteria, including resistant strains such as methicillin-resistant S. aureus (MRSA) and vancomycin-resistant E. faecalis (VRE) strains.
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Affiliation(s)
- Rafael F. A. Gomes
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Vera M. S. Isca
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
- Universidade LusófonaCBIOS – Universidade Lusófona's Research Center for Biosciences & Health TechnologiesCampo Grande 3761749-024LisboaPortugal
| | - Késsia Andrade
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
| | - Patrícia Rijo
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
- Universidade LusófonaCBIOS – Universidade Lusófona's Research Center for Biosciences & Health TechnologiesCampo Grande 3761749-024LisboaPortugal
| | - Carlos A. M. Afonso
- Research Institute for Medicines (iMed.ULisboa)Faculty of PharmacyUniversidade de LisboaAv. Prof. Gama Pinto1649-003LisboaPortugal
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Organic Reactions Using Clay and Clay-Supported Catalysts: A Survey of Recent Literature. CATALYSIS SURVEYS FROM ASIA 2021. [DOI: 10.1007/s10563-021-09333-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Zhao W, Ding H, Zhu J, Liu X, Xu Q, Yin D. Esterification of levulinic acid into n-butyl levulinate catalyzed by sulfonic acid-functionalized lignin-montmorillonite complex. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2020. [DOI: 10.1016/j.jobab.2020.10.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Montmorillonite K10: An Efficient Organo-Heterogeneous Catalyst for Synthesis of Benzimidazole Derivatives. Catalysts 2020. [DOI: 10.3390/catal10080845] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of toxic solvents, high energy consumption, the production of waste and the application of traditional processes that do not follow the principles of green chemistry are problems for the pharmaceutical industry. The organic synthesis of chemical structures that represent the starting point for obtaining active pharmacological compounds, such as benzimidazole derivatives, has become a focal point in chemistry. Benzimidazole derivatives have found very strong applications in medicine. Their synthesis is often based on methods that are not convenient and not very respectful of the environment. A simple montmorillonite K10 (MK10) catalyzed method for the synthesis of benzimidazole derivatives has been developed. The use of MK10 for heterogeneous catalysis provides various advantages: the reaction yields are decidedly high, the work-up procedures of the reaction are easy and suitable, there is an increase in selectivity and the possibility of recycling the catalyst without waste formation is demonstrated. The reactions were carried out in solvent-free conditions and in a short reaction time using inexpensive and environmentally friendly heterogeneous catalysis. It has been shown that the reaction process is applicable in the industrial field.
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11
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Synthesis of Furfuryl Alcohol from Furfural: A Comparison between Batch and Continuous Flow Reactors. ENERGIES 2020. [DOI: 10.3390/en13041002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Furfural is a platform molecule obtained from hemicellulose. Among the products that can be produced from furfural, furfuryl alcohol is one of the most extensively studied. It is synthesized at an industrial scale in the presence of CuCr catalyst, but this process suffers from an environmental negative impact. Here, we demonstrate that a non-noble metal catalyst (Co/SiO2) was active (100% conversion of furfural) and selective (100% selectivity to furfuryl alcohol) in the hydrogenation of furfural to furfuryl alcohol at 150 °C under 20 bar of hydrogen. This catalyst was recyclable up to 3 cycles, and then the activity decreased. Thus, a comparison between batch and continuous flow reactors shows that changing the reactor type helps to increase the stability of the catalyst and the space-time yield. This study shows that using a continuous flow reactor can be a solution to the catalyst suffering from a lack of stability in the batch process.
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12
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Highly Active CuFeAl-containing Catalysts for Selective Hydrogenation of Furfural to Furfuryl Alcohol. Catalysts 2019. [DOI: 10.3390/catal9100816] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
CuFe-containing catalysts with different copper oxide content were prepared by fusion of metal salts. The obtained catalyst showed high activity in the hydrogenation of furfural to furfuryl alcohol (FA) in the batch reactor in the presence of isopropanol as a solvent at a temperature of 100 °C and a hydrogen pressure of 6.0 MPa. The yield of FA and furfural conversion are 97% and 98%, respectively. In the solvent-free reaction in the flow-type reactor; the most active catalyst Cu20Fe66Al14 leads to the 96% formation of FA with 100% conversion of furfural at liquid hourly space velocity (LHSV) = 1 h−1; 160 °C and a hydrogen pressure of 5.0 MPa during 30 h. According to the X-ray diffraction (XRD) method, the active component of the spent and fresh Cu20Fe66Al14 catalyst is the same and is represented by metallic copper and Fe3O4-type spinel. Using different methods, the formation of active sites was investigated.
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New functionalized scaffolds from hydroxymethylfurfural and glucosyloxymethylfurfural by Morita–Baylis–Hillman reaction with cycloalkenones. CR CHIM 2019. [DOI: 10.1016/j.crci.2019.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Zhou Y, Yang M, Tong D, Yang H, Fang K. Eco-Friendly Ca-Montmorillonite Grafted by Non-Acidic Ionic Liquid Used as A Solid Acid Catalyst in Cellulose Hydrolysis to Reducing Sugars. Molecules 2019; 24:molecules24091832. [PMID: 31086032 PMCID: PMC6539098 DOI: 10.3390/molecules24091832] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 05/08/2019] [Accepted: 05/13/2019] [Indexed: 11/16/2022] Open
Abstract
An effective and friendly method was developed for the production of reducing sugars (RS) from the hydrolysis of cellulose over the solid catalyst of Ca-montmorillonite (Mt) grafted by non-acidic ionic liquid (Mt-IL) in water. The effect of mass ratio, water dosage, reaction temperature, and time were investigated in a batch reactor. Raw Mt showed only a 7.9% total reducing sugars (TRS) yield for the catalytic hydrolysis of cellulose in water. As the Mt was grafted by -SO3H and IL, the TRS yield greatly increased under the same reaction conditions. The highest TRS yield of 35.7% was obtained on the catalyst of Mt grafted by non-acidic IL at 200 °C with the mass ratio of catalyst to cellulose of 0.2 for 120 min. The high TRS yield for Mt-IL should be attributed to the synergistic effect of the dissolution of cellulose by IL and the exposed metal ions on the layer with water. Although the yield of TRS on Mt-IL decreased gradually with recycling runs, the decrease after the first run was not very serious compared to the fresh catalyst. This work provides a promising strategy for efficient cellulose hydrolysis into fine chemicals by Mt with non-acidic IL.
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Affiliation(s)
- Yang Zhou
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Miao Yang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Dongshen Tong
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Haiyan Yang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
| | - Kai Fang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, Discipline of Industrial Catalysis, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
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