401
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Meng LG, Li CT, Zhang JF, Xiao GY, Wang L. DMAP-promoted multicomponent reaction of cyanoacetylene, MBH carbonate and water: a facile access to functional quaternary carbon. RSC Adv 2014. [DOI: 10.1039/c3ra47105e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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402
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Li XT, Zhao AD, Mo LP, Zhang ZH. Meglumine catalyzed expeditious four-component domino protocol for synthesis of pyrazolopyranopyrimidines in aqueous medium. RSC Adv 2014. [DOI: 10.1039/c4ra08689a] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Meglumine has been found to be an efficient catalyst for the synthesis of structurally diverse tricyclic fused pyrazolopyranopyrimidines by one-pot, four-component reaction of ethyl acetoacetate, hydrazine hydrate, aromatic aldehydes and barbituric acid in water.
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Affiliation(s)
- Xiao-Tang Li
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Ai-Dong Zhao
- Testing and Analysis Center
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Li-Ping Mo
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry & Material Science
- Hebei Normal University
- Shijiazhuang 050024, P. R. China
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403
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Burange AS, Kale SR, Zboril R, Gawande MB, Jayaram RV. Magnetically retrievable MFe2O4 spinel (M = Mn, Co, Cu, Ni, Zn) catalysts for oxidation of benzylic alcohols to carbonyls. RSC Adv 2014. [DOI: 10.1039/c3ra45327h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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404
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Rezaeifard A, Farshid P, Jafarpour M, Moghaddam GK. Silica-coated magnetite nanoparticles stabilized simple Mn-tetraphenylporphyrin for aqueous phase catalytic oxidations with tert-butyl hydroperoxide. RSC Adv 2014. [DOI: 10.1039/c3ra47288d] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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405
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Karamthulla S, Pal S, Khan MN, Choudhury LH. “On-water” synthesis of novel trisubstituted 1,3-thiazolesviamicrowave-assisted catalyst-free domino reactions. RSC Adv 2014. [DOI: 10.1039/c4ra06239f] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A clean, efficient and catalyst-free multicomponent domino reaction of arylglyoxals, cyclic 1,3-dicarbonyls and thioamides in aqueous media under microwave conditions is reported.
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Affiliation(s)
- Shaik Karamthulla
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
| | - Suman Pal
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
| | - Md. Nasim Khan
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
| | - Lokman H. Choudhury
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800013, India
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406
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Wan JP, Lin Y, Hu K, Liu Y. Metal-free synthesis of 1,3,5-trisubstituted benzenes by the cyclotrimerization of enaminones or alkynes in water. RSC Adv 2014. [DOI: 10.1039/c4ra00475b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The trimeric cyclization reactions of enaminones proceed efficiently in water to provide C3 symmetric benzenes in the presence of lactic acid.
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Affiliation(s)
- Jie-Ping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P.R. China
- Key laboratory of functional small organic molecules
- ministry of education
| | - Yunfang Lin
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P.R. China
| | - Kaikai Hu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P.R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, P.R. China
- Key laboratory of functional small organic molecules
- ministry of education
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407
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Jiang B, Liang YB, Kong LF, Tu XJ, Hao WJ, Ye Q, Tu SJ. Highly diastereoselective synthesis of quinoline-2,5-diones and pyrazolo[3,4-b]pyridin-6(7H)-ones under microwave irradiation. RSC Adv 2014. [DOI: 10.1039/c4ra10096d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new and flexible three-component reaction has been established for the highly diastereoselective synthesis of bicyclic hexahydroquinoline-2,5-diones and pyrazolo[3,4-b]pyridin-6(7H)-ones.
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Affiliation(s)
- Bo Jiang
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
| | - Yan-Bo Liang
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
| | - Li-Fang Kong
- Department of Basic Teaching
- Air Force Logistic Academy
- Xuzhou, P. R. China
| | - Xing-Jun Tu
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
| | - Qin Ye
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical Engineering
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou, P. R. China
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408
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Pagadala R, Maddila S, Rana S, Jonnalagadda SB. Ce–Zr/SiO2: a versatile reusable heterogeneous catalyst for three-component synthesis and solvent free oxidation of benzyl alcohol. RSC Adv 2014. [DOI: 10.1039/c3ra47145d] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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409
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Zhu X, Yang D, Wei W, Jiang M, Li L, Zhu X, You J, Wang H. Magnetic copper ferrite nanoparticles/TEMPO catalyzed selective oxidation of activated alcohols to aldehydes under ligand- and base-free conditions in water. RSC Adv 2014. [DOI: 10.1039/c4ra14152k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel, effective and sustainable strategy for the synthesis of aldehydes under ligand and base free conditions has been developed using inexpensive, readily available, oxygen-stable and recyclable CuFe2O4 nanoparticles as the catalyst.
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Affiliation(s)
- Xiao Zhu
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Daoshan Yang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Wei Wei
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Min Jiang
- Key Laboratory of Bioorganic Phosphorus Chemistry
- Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084, People's Republic of China
| | - Lulu Li
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Xiangbing Zhu
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Jinmao You
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
| | - Hua Wang
- The Key Laboratory of Life-Organic Analysis
- Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165, China
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410
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Rajput JK, Kaur G. Synthesis and applications of CoFe2O4nanoparticles for multicomponent reactions. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00594a] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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411
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Gawande MB, Bonifácio VDB, Luque R, Branco PS, Varma RS. Solvent-free and catalysts-free chemistry: a benign pathway to sustainability. CHEMSUSCHEM 2014; 7:24-44. [PMID: 24357535 DOI: 10.1002/cssc.201300485] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
In the past decade, alternative benign organic methodologies have become an imperative part of organic syntheses and chemical reactions. The various new and innovative sustainable organic reactions and methodologies using no solvents or catalysts and employing alternative energy inputs such as microwaves, sonication, conventional and room temperature heating conditions, mechanochemical mixing, and high-speed ball milling are discussed in detail. Environmentally benign and pharmaceutically important reactions such as multicomponent, condensation, and Michael addition reactions; ring opening of epoxides; and oxidation and other significant organic reactions are discussed. An overview of benign reactions through solvent- and catalyst-free (SF-CF) chemistry and a critical perspective on emerging synergies between SF-CF organic reactions are discussed.
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Affiliation(s)
- Manoj B Gawande
- REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica (Portugal), Fax: (+351) 21-2948550; current address: Regional Centre of Advanced Technologies and Materials, Faculty of Science, Department of Physical Chemistry, Palacky University, 17. listopadu 12, 771 46 Olomouc (Czech Republic). ,
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412
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Al-Majid AM, Barakat A, AL-Najjar HJ, Mabkhot YN, Ghabbour HA, Fun HK. Tandem aldol-Michael reactions in aqueous diethylamine medium: a greener and efficient approach to bis-pyrimidine derivatives. Int J Mol Sci 2013; 14:23762-73. [PMID: 24317435 PMCID: PMC3876076 DOI: 10.3390/ijms141223762] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/12/2013] [Accepted: 11/18/2013] [Indexed: 11/16/2022] Open
Abstract
A simple protocol, involving the green synthesis for the construction of novel bis-pyrimidine derivatives, 3a–i and 4a–e are accomplished by the aqueous diethylamine media promoted tandem Aldol-Michael reaction between two molecules of barbituric acid derivatives 1a,b with various aldehydes. This efficient synthetic protocol using an economic and environmentally friendly reaction media with versatility and shorter reaction time provides bis-pyrimidine derivatives with high yields (88%–99%).
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Affiliation(s)
- Abdullah M. Al-Majid
- Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; E-Mails: (A.M.A.-M.); (H.J.A.-N.); (Y.N.M.)
| | - Assem Barakat
- Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; E-Mails: (A.M.A.-M.); (H.J.A.-N.); (Y.N.M.)
- Department of Chemistry, Faculty of Science, Alexandria University, P.O. Box 426-Ibrahimia, Alexandria 21321, Egypt
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +966-1467-5884; Fax: +966-1467-5992
| | - Hany J. AL-Najjar
- Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; E-Mails: (A.M.A.-M.); (H.J.A.-N.); (Y.N.M.)
| | - Yahia N. Mabkhot
- Department of Chemistry, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia; E-Mails: (A.M.A.-M.); (H.J.A.-N.); (Y.N.M.)
| | - Hazem A. Ghabbour
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; E-Mails: (H.A.G.); (H.-K.F.)
| | - Hoong-Kun Fun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; E-Mails: (H.A.G.); (H.-K.F.)
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413
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414
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Abstract
Mukaiyama aldol reactions in aqueous media have been surveyed. While the original Mukaiyama aldol reactions entailed stoichiometric use of Lewis acids in organic solvents under strictly anhydrous conditions, Mukaiyama aldol reactions in aqueous media are not only suitable for green sustainable chemistry but are found to produce singular phenomena. These findings led to the discovery of a series of water-compatible Lewis acids such as lanthanide triflates in 1991. Our understanding on these beneficial effects in the presence of water will be deepened through the brilliant examples collected in this review. 1 Introduction 2 Rate Enhancement by Water in the Mukaiyama Aldol Reaction 3 Lewis Acid Catalysis in Aqueous or Organic Solvents 3.1 Water-Compatible Lewis Acids 4 Lewis-Base Catalysis in Aqueous or Organic Solvents 5 The Mukaiyama Aldol Reactions in 100% Water 6 Asymmetric Catalysts in Aqueous Media and Water 7 Conclusions and Perspective.
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Affiliation(s)
- Taku Kitanosono
- Department of Chemistry, School of Science, The University of Tokyo Hongo, Bunkyo-ku, Tokyo, Japan, ; phone: (+81)-(0)3-5841-4790 e-mail:
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo Hongo, Bunkyo-ku, Tokyo, Japan, ; phone: (+81)-(0)3-5841-4790 e-mail:
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415
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Zanwar MR, Kavala V, Gawande SD, Kuo CW, Kuo TS, Chen ML, He CH, Yao CF. Synthesis of 3-Substituted 2-Aminonaphtho[2,3-b]furan-4,9-diones from 2-Hydroxy-1,4-Naphthoquinone and Nitroalkenes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300996] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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416
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Sustainable Utility of Magnetically Recyclable Nano-Catalysts in Water: Applications in Organic Synthesis. APPLIED SCIENCES-BASEL 2013. [DOI: 10.3390/app3040656] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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417
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Maharani S, Ranjith Kumar R. ‘On-water’ one-pot pseudo four-component domino protocol for the synthesis of novel benzo[a]cyclooctenes. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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418
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Banerjee S, Saha A. Free-ZnO nanoparticles: a mild, efficient and reusable catalyst for the one-pot multicomponent synthesis of tetrahydrobenzo[b]pyran and dihydropyrimidone derivatives. NEW J CHEM 2013. [DOI: 10.1039/c3nj00723e] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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419
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Kale SR, Kahandal SS, Burange AS, Gawande MB, Jayaram RV. A benign synthesis of 2-amino-4H-chromene in aqueous medium using hydrotalcite (HT) as a heterogeneous base catalyst. Catal Sci Technol 2013. [DOI: 10.1039/c3cy20856g] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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420
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Kale SR, Kahandal SS, Gawande MB, Jayaram RV. Magnetically recyclable γ-Fe2O3–HAP nanoparticles for the cycloaddition reaction of alkynes, halides and azides in aqueous media. RSC Adv 2013. [DOI: 10.1039/c3ra00038a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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