1
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Tanpure S, Mulik A, Rajmane M, Lawande S. Novel ionic liquid dihydrogen 4,4′-trimethylenedipiperidine phosphate-catalyzed greener and efficient synthesis of dihydro pyrano [2,3-c] pyrazole. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04904-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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2
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Kikhavani T, Moradi P, Mashari‐Karir M, Naji J. A new copper Schiff‐base complex of 3,4‐diaminobenzophenone stabilized on magnetic MCM‐41 as a homoselective and reusable catalyst in the synthesis of tetrazoles and pyranopyrazoles. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tavan Kikhavani
- Department of Chemical Engineering, Faculty of Engineering Ilam University Ilam Iran
| | - Parisa Moradi
- Department of Chemistry, Faculty of Science Ilam University Ilam Iran
| | | | - Jalil Naji
- Department of Physics, Faculty of science Ilam University Ilam Iran
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3
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Hamidinasab M, Ahadi N, Bodaghifard MA, Brahmachari G. Sustainable and Bio-Based Catalysts for Multicomponent Organic Synthesis: An Overview. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2097278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Najmieh Ahadi
- Institute of Nanosciences &Nanotechnology, Arak University, Arak, Iran
| | - Mohammad Ali Bodaghifard
- Institute of Nanosciences &Nanotechnology, Arak University, Arak, Iran
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis Department of Chemistry, Visva-Bharati University, Santiniketan, West Bengal, India
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4
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Kiyani H, Daroughezadeh Z. Efficient and Aqoues Synthesis of 3,4-Disubstituted Isoxazol-5(4H)-one Derivatives Using Piperazine under Green Conditions. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Neto BAD, Rocha RO, Rodrigues MO. Catalytic Approaches to Multicomponent Reactions: A Critical Review and Perspectives on the Roles of Catalysis. Molecules 2021; 27:132. [PMID: 35011363 PMCID: PMC8746711 DOI: 10.3390/molecules27010132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 01/17/2023] Open
Abstract
In this review, we comprehensively describe catalyzed multicomponent reactions (MCRs) and the multiple roles of catalysis combined with key parameters to perform these transformations. Besides improving yields and shortening reaction times, catalysis is vital to achieving greener protocols and to furthering the MCR field of research. Considering that MCRs typically have two or more possible reaction pathways to explain the transformation, catalysis is essential for selecting a reaction route and avoiding byproduct formation. Key parameters, such as temperature, catalyst amounts and reagent quantities, were analyzed. Solvent effects, which are likely the most neglected topic in MCRs, as well as their combined roles with catalysis, are critically discussed. Stereocontrolled MCRs, rarely observed without the presence of a catalytic system, are also presented and discussed in this review. Perspectives on the use of catalytic systems for improved and greener MCRs are finally presented.
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Affiliation(s)
- Brenno A. D. Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Rafael O. Rocha
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
| | - Marcelo O. Rodrigues
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy Ribeiro, Brasilia 70910-900, Brazil; (R.O.R.); (M.O.R.)
- School of Physics and Astronomy, Nottingham University, Nottingham NG72RD, UK
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6
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Gulati S, Singh R, Sangwan S. Fruit juice mediated multicomponent reaction for the synthesis of substituted isoxazoles and their in vitro bio-evaluation. Sci Rep 2021; 11:23563. [PMID: 34876634 PMCID: PMC8651685 DOI: 10.1038/s41598-021-03057-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
A simple, efficient and eco-friendly procedure for the synthesis of isoxazole derivatives (4a-4h) using one-pot three-component reaction between substituted aldehydes (1a), methyl acetoacetate (2a) and hydroxylamine hydrochloride (3a) has been achieved in presence of Cocos nucifera L. juice, Solanum lycopersicum L. juice and Citrus limetta juice respectively. The homogeneity of synthesized compounds was confirmed by melting point and thin layer chromatography. The synthesized compounds were characterized by using 1H NMR, FTIR and CHN analyses and evaluated for in vitro herbicidal activity against Raphanus sativus L. (Radish seeds). The compounds (4a-4h) were also screened for their fungicidal activity against Rhizoctonia solani and Colletotrichum gloeosporioides. Antibacterial activity was also tested against Erwinia carotovora and Xanthomonas citri. From bio-evaluation data, it was found that compound 4b was most active against Raphanus sativus L. (root) and Raphanus sativus L. (shoot) respectively. Compound 4b was also found most active against both the fungus viz. R. solani and C. gloeosporioides showing maximum percentage growth inhibition i.e. 90.00 against R. solani and 82.45 against C. gloeosporioides at 2000 µg/mL concentration. Compound 4 h has shown maximum inhibition zone i.e. 3.00-9.60 mm against Erwinia carotovora at 2000 µg/mL concentration. Maximum Xanthomonas citri growth was also inhibited by compound 4 h showing inhibition zone 1.00-5.00 mm at highest concentration.
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Affiliation(s)
- Susheel Gulati
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125004, India.
| | - Rajvir Singh
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125004, India
| | - Suman Sangwan
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125004, India
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7
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Aleaba G, Khedmatgozar Asadi S, Daneshvar N, Shirini F. Introduction of [2,2'-Bipyridine]-1,1'-Diium Perchlorate as a Novel and Highly Efficient Dicationic Brönsted Acidic Organic Salt for the Synthesis of 3-Methyl-4-Arylmethylene Isoxazole-5(4 H)-One Derivatives in Water. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.2005641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Gilda Aleaba
- Department of Chemistry, College of Science, University of Guilan, Rasht, Iran
| | | | | | - Farhad Shirini
- Department of Chemistry, College of Science, University of Guilan, Rasht, Iran
- Department of Chemistry, University of Guilan, Rasht, Iran
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8
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Patil BM, Shinde SK, Jagdale AA, Jadhav SD, Patil SS. Fruit Extract of Averrhoa bilimbi: A Green Neoteric Micellar Medium for Isoxazole and Biginelli-Like Synthesis. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04539-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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9
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Gutiérrez-Gamboa G, Mengyuan W, Moreno-Simunovic Y, Sun X, Fang Y. Potential opportunities of thinned clusters in viticulture: a mini review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:4435-4443. [PMID: 33611788 DOI: 10.1002/jsfa.11170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 02/05/2021] [Accepted: 02/20/2021] [Indexed: 06/12/2023]
Abstract
Crop thinning is a common practice performed in the vineyard consisting of whole clusters or individual fruits being removed after flowering is attained. Current studies have reported that unripe grape products as verjuice and sour grape sauce contain high content of bioactive compounds such as polyphenols, sugars, organic acids, nitrogenous compounds and sterols. This mini-review overviewed the bioactive components obtained from thinned unripe grapes such as phenolic compounds, sugars, organic acids, minerals, nitrogen compounds and sterols, and their use as antibrowning and whitening agents, natural catalysts, food preservative and food additive. In addition, their beneficial effects for human health also were reviewed, as well as the practices to maximize the extraction of antioxidant compounds. Therefore, revalorizing the waste from this management practice in viticulture can increase the vineyard sustainability and farmers' economic profits. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Gastón Gutiérrez-Gamboa
- Facultad de Ciencias Agrarias, Universidad de Talca, Talca, Chile
- College of Enology, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Shaanxi Engineering Research Center for Viti-Viniculture, Heyang Viti-viniculture Station, Northwest A&F University, Yangling, China
| | - Wei Mengyuan
- College of Enology, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Shaanxi Engineering Research Center for Viti-Viniculture, Heyang Viti-viniculture Station, Northwest A&F University, Yangling, China
| | | | - XiangYu Sun
- College of Enology, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Shaanxi Engineering Research Center for Viti-Viniculture, Heyang Viti-viniculture Station, Northwest A&F University, Yangling, China
| | - Yulin Fang
- College of Enology, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Shaanxi Engineering Research Center for Viti-Viniculture, Heyang Viti-viniculture Station, Northwest A&F University, Yangling, China
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10
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Patil UP, Patil SS. Natural Feedstock in Catalysis: A Sustainable Route Towards Organic Transformations. Top Curr Chem (Cham) 2021; 379:36. [PMID: 34389903 DOI: 10.1007/s41061-021-00346-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 07/21/2021] [Indexed: 10/20/2022]
Abstract
Catalysts are the jewel in the crown of the chemical industry, accelerating reaction kinetics and augmenting the efficiency of desired reaction paths. Natural feedstock is a renewable resource capable of providing valuable functional products; in addition, it confers an opportunity to create catalysts. As an alternative to stoichiometric reagents, and as a part of a sustainable approach, the implications of using natural feedstocks as a source of new catalysts has attracted considerable interest. Natural feedstock-derived catalysts can promote chemical transformations more efficiently. Recent reports have highlighted the significant role of these biogenic, cost-effective, innocuous, biodegradable materials as catalysts in many biologically and pharmacologically important protocols. This review outlines the decisive organic transformations for which feedstock-derived catalysts have been employed effectively and successfully, along with their economic and environmental benefits over traditional catalytic systems.
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Affiliation(s)
- U P Patil
- Department of Chemistry, Arts, Commerce and Science College (Affiliated to Shivaji University, Kolhapur), Palus, Sangli, Maharastra, 416310, India.
| | - Suresh S Patil
- Synthetic Research Laboratory, PG Department of Chemistry, PDVP College (Affiliated to Shivaji University, Kolhapur), Tasgaon, Sangli, Maharastra, 416312, India
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11
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Gadkari YU, Hatvate NT, Telvekar VN. Concentrated solar radiation-assisted one-pot/multicomponent synthesis of pyranopyrazole derivatives under neat condition. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04530-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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12
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Sharma YB, Hirlekar BU, Bharitkar YP, Hazra A. Lemon Juice: A Versatile Reusable Biocatalyst for the Synthesis of Bioactive Organic Compounds as well as Numerous Nanoparticles Based Catalytic System. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210317151732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Green chemistry is an essential part of the organic synthesis chemistry and plays a
principal role in saving the environment from harmful and toxic catalysts. Fruit juice catalyzed
chemistry is a vital part of green chemistry in which lemon juice plays a potential role
in various organic transformations. This review article summarizes (from 2011-2020) the
application and importance of lemon juice in synthetic organic transformation as well as synthesis
of various type of nanoparticles and catalysts. This review article can help the researchers
to develop the route for the synthesis of various scaffolds, small molecules, nanoparticles
and catalysts under economical and environment friendly condition.
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Affiliation(s)
- Yogesh Brijwashi Sharma
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata - 700 054, India
| | - Bhakti Umesh Hirlekar
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata - 700 054, India
| | - Yogesh P. Bharitkar
- CSIR-Indian Institute of Integrative Medicine (IIIM), Branch Laboratory, Sanat Nagar, Srinagar-190005 (J&K), India
| | - Abhijit Hazra
- National Institute of Pharmaceutical Education and Research (NIPER), Chunilal Bhawan, 168, Maniktala Main Road, Kolkata - 700 054, India
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13
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Reihani N, Kiyani H. Three-component Synthesis of 4-Arylidene-3-alkylisoxazol-5(4H)-ones in the Presence of Potassium 2,5-dioxoimidazolidin-1-ide. CURR ORG CHEM 2021. [DOI: 10.2174/1385272825666210212120517] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An efficient synthesis of 4-arylidene-3-alkylisoxazole-5(4H)-ones has been implemented
via the three-component cyclocondensation of aryl(heteroaryl)aldehydes with hydroxylamine
hydrochloride and β-ketoesters. The potassium 2,5-dioxoimidazolidin-1-ide has
been introduced as the new organocatalyst to facilitate this heterocyclization. In the current
process, three starting materials, including substituted benzaldehydes/heterocyclic aromatic
aldehydes, hydroxylamine hydrochloride, and ethyl acetoacetate/propyl acetoacetate/butyryl
acetoacetate have been successfully used to synthesize the number of substituted isoxazole-
5(4H)-ones in good to high yields in ethylene glycol as a green reaction medium at 80 ºC. The
low catalyst loading is also a main advantage over some reported catalysts.
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Affiliation(s)
- Neda Reihani
- School of Chemistry, Damghan University, Damghan,Iran
| | - Hamzeh Kiyani
- School of Chemistry, Damghan University, Damghan,Iran
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14
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Oliveira GHC, Ramos LM, de Paiva RKC, Passos STA, Simões MM, Machado F, Correa JR, Neto BAD. Synthetic enzyme-catalyzed multicomponent reaction for Isoxazol-5(4 H)-one Syntheses, their properties and biological application; why should one study mechanisms? Org Biomol Chem 2021; 19:1514-1531. [PMID: 33332518 DOI: 10.1039/d0ob02114h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this work, we describe the application of a synthetic enzyme (synzyme) as the catalyst to promote the multicomponent synthesis of isoxazol-5(4H)-one derivatives. The catalytic system could be used up to 15 times without any notable loss of its activity. Some derivatives showed fluorescence and their photophysical data were evaluated. The mechanism of the reaction was, for the first time, investigated and, among the three reaction pathway possibilities, only one was operating under the developed conditions. ESI-MS(/MS) allowed for both the simultaneous monitoring of the multicomponent reaction (MCR) and the proposition of a kinetic model to explain the transformation. The kinetic model pointed firmly to only one reaction pathway and helped to discard the other two possibilities. The antimicrobial abilities of all synthesized derivatives against Gram-positive and Gram-negative strains were also evaluated. The abilities of functional chromophores (fluorescent compounds) as live cell-imaging probes were verified and one of the multicomponent adducts could stain early endosomes selectively in bioimaging experiments.
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Affiliation(s)
- Gabriela H C Oliveira
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Luciana M Ramos
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Raíssa K C de Paiva
- Laboratório de Química Medicinal e Síntese Orgânica (LaQuiMeSO), Câmpus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, CP 459, Anápolis-GO, Brazil.
| | - Saulo T A Passos
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil.
| | - Marina M Simões
- Laboratório de Microscopia e Microanálise, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Fabricio Machado
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil. and School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
| | - José R Correa
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil. and Laboratório de Microscopia e Microanálise, Departamento de Biologia Celular, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, DF, Brazil
| | - Brenno A D Neto
- Laboratory of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitario Darcy Ribeiro, Brasília, Distrito Federal 70904-900, Brazil.
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15
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Kiyani H, Faramarzi Z. Organocatalyzed Three-Component Synthesis of Isoxazol-5(4H)-ones under Aqueous Conditions. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Kulkarni P. An efficient solvent-free synthesis of 3,4-disubstituted isoxazole-5(4H)-ones using microwave irradiation. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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17
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Mehravar M, Mirjalili BBF, Babaei E, Bamoniri A. Preparation and Application of Nano-AlPO4/Ti (IV) as a New and Recyclable Catalyst for the Four-Component Synthesis of Dihydropyrano[2,3-c]Pyrazoles. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1856149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Maryam Mehravar
- Department of Chemistry, College of Science, Yazd University, Yazd, Iran
| | | | - Elaheh Babaei
- Department of Chemistry, College of Science, Yazd University, Yazd, Iran
| | - Abdolhamid Bamoniri
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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18
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Wang Y, Du DM. Highly Diastereo- and Enantioselective Synthesis of Isoxazolone-Spirooxindoles via Squaramide-Catalyzed Cascade Michael/Michael Addition Reactions. J Org Chem 2020; 85:15325-15336. [PMID: 33141592 DOI: 10.1021/acs.joc.0c02150] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A highly enantioselective [3+2] annulation of 3-((2-oxoindolin-3-yl)oxy)acrylates with isoxazol-5(4H)-ones has been accomplished by squaramide-catalyzed cascade Michael/Michael addition reactions under mild conditions. The corresponding isoxazolone-spirooxindoles with four continuous stereocenters were obtained in moderate to high yields with excellent stereoselectivities (up to >20:1 dr, 97% ee). The synthetic practicality of this methodology was illustrated by performing the reaction on a gram scale with the same efficiency and stereoselectivity. Meanwhile, the isoxazol-5(4H)-one ring could be opened by the reaction with iron powder and ammonium chloride, and the corresponding acyl derivative can be obtained with a maintained yield and stereoselectivity.
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Affiliation(s)
- Yu Wang
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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Affiliation(s)
- Sana Sikandar
- Department of Chemistry Government College University Faisalabad Faisalabad Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry Government College University Faisalabad Faisalabad Pakistan
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20
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Chowhan B, Gupta M, Sharma N. Fabrication and characterization of adenine‐grafted carbon‐modified amorphous ZnO with enhanced catalytic activity. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.6013] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Bushra Chowhan
- Department of Chemistry University of Jammu Jammu 180006 India
| | - Monika Gupta
- Department of Chemistry University of Jammu Jammu 180006 India
| | - Neha Sharma
- Department of Chemistry University of Jammu Jammu 180006 India
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21
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Nasrollahzadeh M, Shafiei N, Nezafat Z, Sadat Soheili Bidgoli N, Soleimani F, Varma RS. Valorisation of Fruits, their Juices and Residues into Valuable (Nano)materials for Applications in Chemical Catalysis and Environment. CHEM REC 2020; 20:1338-1393. [PMID: 32990405 DOI: 10.1002/tcr.202000078] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/01/2020] [Indexed: 12/16/2022]
Abstract
One of the most abundant wastes from all around the world is nutrient resources. Among them, fruits, their extracts, and residues comprise a major portion, which contain many valuable components that get lost during disposal or become burden on the shrinking landfills. These concerns are addressed by seeking sustainable processing methods that would have a minimal environmental impact. The crops contain renewable chemicals which are useful for catalysis, wastewater treatment, or preparation of nanomaterials; there has been an upsurge for the industrial applications of (nano)materials as their environmental and catalytic appliances is a fascinating subject to design cheaper and safer catalytic systems. Due to the excellent chemical properties of the fruit extracts, they have garnered attention as cost-effective catalysts and support materials. This review focuses on the preparation of (nano)materials and their catalytic and environmental applications and highlights the potential appliances and industrial benefits derived from these low-cost renewable and sustainable greener sources thus essentially converting waste into wealth.
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Affiliation(s)
| | - Nasrin Shafiei
- Department of Chemistry, Faculty of Science, University of Qom, Qom, 37185-359, Iran
| | - Zahra Nezafat
- Department of Chemistry, Faculty of Science, University of Qom, Qom, 37185-359, Iran
| | | | - Fahimeh Soleimani
- Department of Chemistry, Faculty of Science, University of Qom, Qom, 37185-359, Iran
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
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22
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Damghani FK, Kiyani H, Pourmousavi SA. Green Three-component Synthesis of Merocyanin Dyes Based on 4- Arylideneisoxazol-5(4H)-ones. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107666200122093906] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A one-pot three-component reaction promoted by choline chloride: zinc(II) chloride deepeutectic
solvent (ChCl-ZnCl2 DES) in an aqueous medium for the synthesis of several merocyanin
dyes based on isoxazol-5(4H)-ones is presented. This three-component approach is efficient, clean,
experimentally simple, convenient, safe, and environmentally friendly. This reaction was performed at
room temperature without using energy sources such as heat, microwave and ultrasound waves. Nonuse
of toxic solvents, available materials, one-vessel, no wasted reagents, simple preparation, and recyclability
of DES are other important points of this method that is significant from the perspective of
green chemistry.
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Affiliation(s)
| | - Hamzeh Kiyani
- School of Chemistry, Damghan University, Damghan, Iran
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Gulati S, Singh R, Sindhu J, Sangwan S. Eco-friendly Preparations of Heterocycles Using Fruit Juices as Catalysts: A Review. ORG PREP PROCED INT 2020. [DOI: 10.1080/00304948.2020.1773158] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Susheel Gulati
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
| | - Rajvir Singh
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
| | - Jayant Sindhu
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
| | - Suman Sangwan
- Department of Chemistry, Chaudhary Charan Singh Haryana Agricultural University, Hisar, India
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25
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Saadati-Moshtaghin HR, Maleki B, Tayebee R, Kahrobaei S, Abbasinohoji F. 6-methylguanamine-Supported CoFe 2O 4: An Efficient Catalyst for One-Pot Three-Component Synthesis of Isoxazol-5(4 H)-One Derivatives. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1754865] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Behrooz Maleki
- Department of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Reza Tayebee
- Department of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, Iran
| | - Sepideh Kahrobaei
- Department of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, Iran
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26
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Babaee S, Zarei M, Sepehrmansourie H, Zolfigol MA, Rostamnia S. Synthesis of Metal-Organic Frameworks MIL-101(Cr)-NH 2 Containing Phosphorous Acid Functional Groups: Application for the Synthesis of N-Amino-2-pyridone and Pyrano [2,3- c]pyrazole Derivatives via a Cooperative Vinylogous Anomeric-Based Oxidation. ACS OMEGA 2020; 5:6240-6249. [PMID: 32258858 PMCID: PMC7114146 DOI: 10.1021/acsomega.9b02133] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 03/05/2020] [Indexed: 05/24/2023]
Abstract
In the current paper, we successfully developed and used metal-organic frameworks (MOFs) based on MIL-101(Cr)-NH2 with phosphorus acid functional groups MIL-101(Cr)-N(CH2PO3H2)2. The synthesized metal-organic frameworks (MOFs) as a multi-functional heterogeneous and nanoporous catalyst were used for the synthesis of N-amino-2-pyridone and pyrano [2,3-c]pyrazole derivatives via reaction of ethyl cyanoacetate or ethyl acetoacetate, hydrazine hydrate, malononitrile, and various aldehydes. The final step of the reaction mechanism was preceded by a cooperative vinylogous anomeric-based oxidation. Recycle and reusability of the described catalyst MIL-101(Cr)-N(CH2PO3H2)2 were also investigated.
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Affiliation(s)
- Saeed Babaee
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamedan, Iran
| | - Mahmoud Zarei
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamedan, Iran
| | - Hassan Sepehrmansourie
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamedan, Iran
| | - Mohammad Ali Zolfigol
- Department
of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, P.O. Box 6517838683, Hamedan, Iran
| | - Sadegh Rostamnia
- Organic
and Nano Group (ONG), Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55181-83111, Maragheh, Iran
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27
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Hosseini Mohtasham N, Gholizadeh M. Nano silica extracted from horsetail plant as a natural silica support for the synthesis of H3PW12O40 immobilized on aminated magnetic nanoparticles (Fe3O4@SiO2-EP-NH-HPA): a novel and efficient heterogeneous nanocatalyst for the green one-pot synthesis of pyrano[2,3-c]pyrazole derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04133-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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28
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Bhavsar ZA, Acharya PT, Jethava DJ, Patel HD. Recent advances in development of anthelmintic agents: Synthesis and biological screening. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2019.1695276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zeel A. Bhavsar
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Prachi T. Acharya
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Divya J. Jethava
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Hitesh D. Patel
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
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29
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Redouane MA, Khiri-Meribout N, Benzerka S, Debache A. [DMImd-DMP]: A highly efficient and reusable catalyst for the synthesis of 4H-benzo[b]pyran derivatives. HETEROCYCL COMMUN 2019. [DOI: 10.1515/hc-2019-0025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractA series of substituted 4H-pyrans derivatives were synthesized by a one-pot, multi-component reaction of aromatic aldehydes, malononitrile, and pyrazolone derivatives or active methylene carbonyl compounds such as dimedone, in the presence of 1,3-dimethyl imidazolium dimethyl phosphate [DMImd-DMP] as a catalyst in aqueous ethanol. Recyclability of the catalyst, high yields, simple product isolation and high atom economy are the noteworthy aspects of this protocol.
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Affiliation(s)
- Mohamed Abdenour Redouane
- Laboratory of Synthesis of Molecules with Biological Interest, Mentouri-Constantine 1 University, 25000Constantine, Algeria
| | - Naima Khiri-Meribout
- Laboratory of Synthesis of Molecules with Biological Interest, Mentouri-Constantine 1 University, 25000Constantine, Algeria
| | - Saida Benzerka
- Laboratory of Synthesis of Molecules with Biological Interest, Mentouri-Constantine 1 University, 25000Constantine, Algeria
| | - Abdelmadjid Debache
- Laboratory of Synthesis of Molecules with Biological Interest, Mentouri-Constantine 1 University, 25000Constantine, Algeria
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30
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Facile and expedient synthesis of α,β-unsaturated isoxazol-5(4H)-ones under mild conditions. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03999-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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31
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Versatile catalysis of “natural extract”: oxidation of sulfides and alcohols and ipso-hydroxylation of arylboronic acids. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01707-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Valiey E, Dekamin MG, Alirezvani Z. Melamine-modified chitosan materials: An efficient and recyclable bifunctional organocatalyst for green synthesis of densely functionalized bioactive dihydropyrano[2,3-c]pyrazole and benzylpyrazolyl coumarin derivatives. Int J Biol Macromol 2019; 129:407-421. [DOI: 10.1016/j.ijbiomac.2019.01.027] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 12/28/2018] [Accepted: 01/05/2019] [Indexed: 01/06/2023]
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33
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Mosallanezhad A, Kiyani H. Green Synthesis of 3-Substituted-4-arylmethylideneisoxazol-5(4H)-one Derivatives Catalyzed by Salicylic Acid. CURRENT ORGANOCATALYSIS 2019. [DOI: 10.2174/2213337206666190214161332] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
4-Arylmethylideneisoxazol-5(4H)-ones are a class of organic compounds
with a variety of applications in the agriculture, filter dyes, photonic devices, and pharmaceutical industries.
They are also used as synthetic precursors for the synthesis of other organic compounds. As
a result, efforts are being made to search new and available catalyst and green methods toward their
synthesis.
Objective:
The aim of this work is to investigate the catalytic activity of salicylic acid as an inexpensive,
easy to handle, and safe catalyst to synthesis of some derivatives of isoxazole-5(4H)-ones in
water medium.
Methods:
To aqueous solution of equal amounts of aryl/heteroaryl aldehydes, β-ketoesters, and hydroxylamine
hydrochloride; salicylic acid (15 mol%) was added and the reaction mixture was stirred
at room temperature for a specified periods. The precipitated product was filtered and washed with
water to obtain 3-substituted-4-arylmethylideneisoxazol-5(4H)-ones. The reaction conditions were
also optimized and extended to synthesis other isoxazol-5(4H)-ones.
Results:
The salicylic acid is found to possess acceptable catalytic activity for the promotion of
three-component cyclocondensation of aryl/heteroaryl aldehydes, β-ketoesters, and hydroxylamine
hydrochloride. The three-component reaction led to construction of 3-substituted-4-arylmethylideneisoxazol-
5(4H)-ones in good to high isolated reaction yields.
Conclusion:
The efficient and environmental friendliness procedure for the synthesis of isoxazol-
5(4H)-ones is introduced. The reaction also carried out smoothly in water as a cost-effective, simple,
green, and non-toxic solvent at room temperature without using heating, microwave, and ultrasound
sources.
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Affiliation(s)
| | - Hamzeh Kiyani
- School of Chemistry, Damghan University, Damghan, Iran
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34
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Alpha-Casein: an efficient, green, novel, and eco-friendly catalyst for one-pot multi-component synthesis of bis (pyrazol-5-ols), dihydro-pyrano[2,3-c]pyrazoles and spiropyranopyrazoles in an environmentally benign manner. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01641-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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35
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Safari N, Shirini F, Tajik H. Verjuice as a green and bio-degradable solvent/catalyst for facile and eco-friendly synthesis of 5-arylmethylenepyrimidine-2,4,6-trione, pyrano[2,3-d]pyrimidinone and pyrimido[4,5-d]pyrimidinone derivatives. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-018-1565-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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36
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Reddy GM, Garcia JR, Reddy VH, Kumari AK, Zyryanov GV, Yuvaraja G. An efficient and green approach: One pot, multi component, reusable catalyzed synthesis of pyranopyrazoles and investigation of biological assays. JOURNAL OF SAUDI CHEMICAL SOCIETY 2019. [DOI: 10.1016/j.jscs.2018.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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37
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Salehi N, Mirjalili BBF. Green Synthesis of Pyrano[2,3-c]pyrazoles and Spiro[indoline-3,4′-pyrano[2,3-c]pyrazoles] Using Nano-silica Supported 1,4-Diazabicyclo[2.2.2]octane as a Novel Catalyst. ORG PREP PROCED INT 2019. [DOI: 10.1080/00304948.2018.1537748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Naeimeh Salehi
- Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Iran
| | - Bi Bi Fatemeh Mirjalili
- Department of Chemistry, College of Science, Yazd University, P.O. Box 89195-741, Yazd, Iran
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38
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Facile, capable, atom-economical one-pot multicomponent strategy for the direct regioselective synthesis of novel isoxazolo[5,4-d]pyrimidines. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03757-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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39
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Konakanchi R, Nishtala VB, Kankala S, Kotha LR. Zn(ANA)2Cl2 complex as efficient catalyst for the synthesis of dihydropyrano[2,3-c]pyrazoles in aqueous medium via one-pot multicomponent reaction: a green approach. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1506034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Ramaiah Konakanchi
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | | | | | - Laxma Reddy Kotha
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
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40
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Konakanchi R, Gondru R, Nishtala VB, Kotha LR. NaF-catalyzed efficient one-pot synthesis of dihydropyrano[2,3-c]pyrazoles under ultrasonic irradiation via MCR approach. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1479758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ramaiah Konakanchi
- Department of Chemistry, National Institute of Technology, Warangal, Telangana State, India
| | - Ramesh Gondru
- Department of Chemistry, National Institute of Technology, Warangal, Telangana State, India
| | | | - Laxma Reddy Kotha
- Department of Chemistry, National Institute of Technology, Warangal, Telangana State, India
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41
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Sodium ascorbate as an expedient catalyst for green synthesis of polysubstituted 5-aminopyrazole-4-carbonitriles and 6-amino-1,4-dihydropyrano[2,3-c]pyrazole-5-carbonitriles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3260-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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42
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Fatahpour M, Noori Sadeh F, Hazeri N, Maghsoodlou MT, Hadavi MS, Mahnaei S. Ag/TiO 2 nano-thin films as robust heterogeneous catalyst for one-pot, multi-component synthesis of bis (pyrazol-5-ol) and dihydropyrano[2,3 -c ]pyrazole analogs. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2017.05.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Synergetic effects of naturally sourced metal oxides in organic synthesis: a greener approach for the synthesis of pyrano[2,3-c]pyrazoles and pyrazolyl-4H-chromenes. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3197-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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44
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Rimaz M, Khalafy J, Mousavi H, Bohlooli S, Khalili B. Two Different Green Catalytic Systems for One-Pot Regioselective and Chemoselective Synthesis of Some Pyrimido[4,5-d]Pyrimidinone Derivatives in Water. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2932] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mehdi Rimaz
- Department of Chemistry; Payame Noor University; PO Box 19395-3697 Tehran Iran
| | - Jabbar Khalafy
- Department of Organic Chemistry, Faculty of Chemistry; Urmia University; Urmia Iran
| | - Hossein Mousavi
- Department of Chemistry; Payame Noor University; PO Box 19395-3697 Tehran Iran
| | - Sanaz Bohlooli
- Department of Chemistry; Payame Noor University; PO Box 19395-3697 Tehran Iran
| | - Behzad Khalili
- Department of Chemistry, Faculty of Sciences; University of Guilan; PO Box 41335-1914 Rasht Iran
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45
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Aspirin: an efficient catalyst for synthesis of bis (pyrazol-5-ols), dihydropyrano[2,3-c]pyrazoles and spiropyranopyrazoles in an environmentally benign manner. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1133-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Pati Tripathi B, Mishra A, Rai P, Kumar Pandey Y, Srivastava M, Yadav S, Singh J, Singh J. A green and clean pathway: one pot, multicomponent, and visible light assisted synthesis of pyrano[2,3-c]pyrazoles under catalyst-free and solvent-free conditions. NEW J CHEM 2017. [DOI: 10.1039/c7nj01688c] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Visible light mediated, an eco-friendlier synthetic protocol for dihydropyrano[2,3-c]pyrazoles via catalyst-free and solvent-free conditions at room temperature.
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Affiliation(s)
- Bhartendu Pati Tripathi
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Anu Mishra
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Pratibha Rai
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Yogesh Kumar Pandey
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | | | - Snehlata Yadav
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Jaya Singh
- Department of Chemistry
- LRPG College
- Sahibabad
- India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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