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Mahmoudi AE, Tachallait H, Moutaoukil Z, Arshad S, Karrouchi K, Benhida R, Bougrin K. Ultrasound‐Assisted Green Synthesis of 3,5‐Disubstituted Isoxazole Secondary Sulfonamides via One‐Pot Five‐Component Reaction using CaCl
2
/K
2
CO
3
as Pre‐Catalyst in Water. ChemistrySelect 2022. [DOI: 10.1002/slct.202203072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ayoub El Mahmoudi
- Equipe de Chimie des Plantes et de Synthèse Organique et Bioorganique URAC23 Faculty of Science B.P. 1014 Geophysics Natural Patrimony and Green Chemistry (GEOPAC) Research Center Mohammed V University in Rabat Morocco
| | - Hamza Tachallait
- Equipe de Chimie des Plantes et de Synthèse Organique et Bioorganique URAC23 Faculty of Science B.P. 1014 Geophysics Natural Patrimony and Green Chemistry (GEOPAC) Research Center Mohammed V University in Rabat Morocco
- Chemical & Biochemical Sciences Green-Process Engineering (CBS) Mohammed VI Polytechnic University Lot 660, Hay Moulay Rachid Benguerir Morocco
| | - Zakaria Moutaoukil
- Chemical & Biochemical Sciences Green-Process Engineering (CBS) Mohammed VI Polytechnic University Lot 660, Hay Moulay Rachid Benguerir Morocco
- Université Côte d'Azur CNRS Institut de Chimie de Nice UMR CNRS 7272 - 06108 Nice France
| | - Suhana Arshad
- X-ray Crystallography Unit School of Physics Universiti Sains Malaysia 11800 USM Penang Malaysia
| | - Khalid Karrouchi
- Laboratory of Analytical Chemistry and Bromatology Faculty of Medicine and Pharmacy Mohammed V University in Rabat Morocco
| | - Rachid Benhida
- Chemical & Biochemical Sciences Green-Process Engineering (CBS) Mohammed VI Polytechnic University Lot 660, Hay Moulay Rachid Benguerir Morocco
- Université Côte d'Azur CNRS Institut de Chimie de Nice UMR CNRS 7272 - 06108 Nice France
| | - Khalid Bougrin
- Equipe de Chimie des Plantes et de Synthèse Organique et Bioorganique URAC23 Faculty of Science B.P. 1014 Geophysics Natural Patrimony and Green Chemistry (GEOPAC) Research Center Mohammed V University in Rabat Morocco
- Chemical & Biochemical Sciences Green-Process Engineering (CBS) Mohammed VI Polytechnic University Lot 660, Hay Moulay Rachid Benguerir Morocco
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2
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Evaluation of pectin extractions and their application in the alkaline Maillard reaction. Sci Rep 2022; 12:19834. [PMID: 36400863 PMCID: PMC9674671 DOI: 10.1038/s41598-022-22002-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/07/2022] [Indexed: 11/19/2022] Open
Abstract
A 23 factorial design was used to evaluate the influence of temperature, catalyst and time and esterification degree (DE) of pectin obtained from mango, orange and tangerine peels as well as tamarind seeds by using the acid hydrolysis method. The study showed that a high temperature positively influenced the percentage of pectin yield for the four second generation biomasses. Nevertheless, the temperature showed a greater influence in the solubility and diffusion of the acid solvent in the tamarind seed matrix, resulting a pectin recovery 32.9%. Concerning the %DE, the most statistically significant value observed was dependent on the type of biomass studied. The %DE and the nature of the pectin are determining factors in the pectin's final use, in the present work the pectin extracted was used to produce furfural, a precursor of high value chemicals. The furfural production was achieved through alkaline hydrolysis and enhanced using the Maillard reaction, reaching a maximum concentration of 71.8 g/L which represents a 42.1% increase from the alkaline hydrolysis.
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Wang P, Li W, Han K, Guo Y, Zhao Y, Cao S. Application of pentacoordinated spirophosphorane as a new organocatalyst for the Michael addition reaction. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1946062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Peipei Wang
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - Wanjiao Li
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - Kehui Han
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - Yanchun Guo
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
| | - Yufen Zhao
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
- Institute of Drug Discovery Technology, Ningbo University, Ningbo, PR China
| | - Shuxia Cao
- College of Chemistry, Zhengzhou University, Zhengzhou, PR China
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Yu T, Ding Z, Nie W, Jiao J, Zhang H, Zhang Q, Xue C, Duan X, Yamada YMA, Li P. Recent Advances in Continuous-Flow Enantioselective Catalysis. Chemistry 2020; 26:5729-5747. [PMID: 31916323 DOI: 10.1002/chem.201905151] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/18/2019] [Indexed: 11/05/2022]
Abstract
The increased demand for more efficient, safe, and green production in fine chemical and pharmaceutical industry calls for the development of continuous-flow manufacturing, and for chiral chemicals in particular, enantioselective catalytic processes. In recent years, this emerging direction has received considerable attention and has seen rapid progress. In most cases, catalytic enantioselective flow processes using homogeneous, heterogeneous, or enzymatic catalysts have shown significant advantages over the conventional batch mode, such as shortened reaction times, lower catalysts loadings, and higher selectivities in addition to the normal merits of non-enantioselective flow operations. In this Minireview, the advancements, key strategies, methods, and technologies developed the last six years as well as remaining challenges are summarized.
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Affiliation(s)
- Tao Yu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Zhengwei Ding
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Wenzheng Nie
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Jiao Jiao
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Hailong Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, 710061, P. R. China
| | - Qian Zhang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, P. R. China
| | - Chao Xue
- State Key Laboratory for Efficient Development and, Utilization of Fluorine and Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, P. R. China
| | - Xinhua Duan
- Department of Chemistry, School of Science, Xi'an Jiaotong University, Xi'an, 710061, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yoichi M A Yamada
- RIKEN Center for Sustainable Resource Science, Wako, Saitama, 3510198, Japan
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.,Xian Key Laboratory of Sustainable Energy Materials Chemistry, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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Yamashita Y, Macor JA, Fushimi S, Tsubogo T, Kobayashi S. Chiral Calcium-Catalyzed Asymmetric Epoxidation Reactions Using Hydrogen Peroxide as the Terminal Oxidant. Chem Pharm Bull (Tokyo) 2018; 66:847-850. [PMID: 30175740 DOI: 10.1248/cpb.c18-00485] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Asymmetric epoxidation reactions of chalcone derivatives catalyzed by chiral calcium complexes using hydrogen peroxide were developed. The epoxidation reactions proceeded smoothly to afford the desired products in good yields with good enantioselectivities. This is the first example of chiral calcium-catalyzed asymmetric epoxidation reactions using hydrogen peroxide as the terminal oxidant.
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Affiliation(s)
| | | | - Seiya Fushimi
- Department of Chemistry, School of Science, The University of Tokyo
| | - Tetsu Tsubogo
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo.,Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo
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6
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Babu SA, Krishnan KK, Ujwaldev SM, Anilkumar G. Applications of Pybox Complexes in Asymmetric Catalysis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800094] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sheba Ann Babu
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills; Kottayam Kerala 686560 India
| | - K. Keerthi Krishnan
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills; Kottayam Kerala 686560 India
| | - S. M. Ujwaldev
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills; Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University, Priyadarsini Hills; Kottayam Kerala 686560 India
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7
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Microwave-induced calcium(II) chloride-catalyzed Paal–Knorr pyrrole synthesis: a safe, expeditious, and sustainable protocol. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3355-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kiely-Collins HJ, Sechi I, Brennan PE, McLaughlin MG. Mild, calcium catalysed Beckmann rearrangements. Chem Commun (Camb) 2018; 54:654-657. [DOI: 10.1039/c7cc09491d] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A mild calcium catalysed Beckmann rearrangement has been realised, which forgoes the more traditional harsh reactions conditions associated with the transformation.
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Affiliation(s)
- H. J. Kiely-Collins
- Structural Genomics Consortium & Target Discovery Institute, University of Oxford, NDM Research Building
- Oxford
- UK
| | - I. Sechi
- Structural Genomics Consortium & Target Discovery Institute, University of Oxford, NDM Research Building
- Oxford
- UK
| | - P. E. Brennan
- Structural Genomics Consortium & Target Discovery Institute, University of Oxford, NDM Research Building
- Oxford
- UK
- ARUK Oxford Drug Discovery Institute, University of Oxford Oxford
- UK
| | - M. G. McLaughlin
- Structural Genomics Consortium & Target Discovery Institute, University of Oxford, NDM Research Building
- Oxford
- UK
- Faculty of Science & Engineering, Division of Chemistry & Environmental Science, Manchester Metropolitan University
- Manchester
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Kobayashi S. Flow "Fine" Synthesis: High Yielding and Selective Organic Synthesis by Flow Methods. Chem Asian J 2016; 11:425-36. [PMID: 26337828 PMCID: PMC4770433 DOI: 10.1002/asia.201500916] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Indexed: 01/15/2023]
Abstract
The concept of flow "fine" synthesis, that is, high yielding and selective organic synthesis by flow methods, is described. Some examples of flow "fine" synthesis of natural products and APIs are discussed. Flow methods have several advantages over batch methods in terms of environmental compatibility, efficiency, and safety. However, synthesis by flow methods is more difficult than synthesis by batch methods. Indeed, it has been considered that synthesis by flow methods can be applicable for the production of simple gasses but that it is difficult to apply to the synthesis of complex molecules such as natural products and APIs. Therefore, organic synthesis of such complex molecules has been conducted by batch methods. On the other hand, syntheses and reactions that attain high yields and high selectivities by flow methods are increasingly reported. Flow methods are leading candidates for the next generation of manufacturing methods that can mitigate environmental concerns toward sustainable society.
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Affiliation(s)
- Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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Lippur K, Kaabel S, Järving I, Rissanen K, Kanger T. CaCl2, Bisoxazoline, and Malonate: A Protocol for an Asymmetric Michael Reaction. J Org Chem 2015; 80:6336-41. [PMID: 26035234 DOI: 10.1021/acs.joc.5b00769] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mild protocol for the asymmetric Michael addition of dimethyl malonate to various α,β-unsaturated carbonyl compounds was developed. The salient feature of this methodology is that a cheap and environmentally friendly Lewis acid, CaCl2, was used as a catalyst. An aminoindanol- and pyridine-derived ligand provided in the presence of CaCl2 Michael adducts in moderate to high enantioselectivities. The scope of the reaction was demonstrated.
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Affiliation(s)
- Kristin Lippur
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Sandra Kaabel
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia.,‡Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
| | - Ivar Järving
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
| | - Kari Rissanen
- ‡Department of Chemistry, Nanoscience Center, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
| | - Tõnis Kanger
- †Department of Chemistry, Tallinn University of Technology, Akadeemia tee 15, 12618 Tallinn, Estonia
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11
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Chiral Alkaline Earth Metal Complexes in Asymmetric Catalysis. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Abstract
This review illustrates the current strategies and potential of polymer-immobilized chiral catalysts for highly enantioselective asymmetric synthesis.
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Affiliation(s)
- Shinichi Itsuno
- Department of Environmental & Life Sciences
- Toyohashi University of Technology
- Toyohashi 441-8580, Japan
| | - Md. Mehadi Hassan
- Department of Environmental & Life Sciences
- Toyohashi University of Technology
- Toyohashi 441-8580, Japan
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