351
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Singh S, Saquib M, Singh SB, Singh M, Singh J. Catalyst free, multicomponent-tandem synthesis of spirooxindole-indazolones and spirooxindole-pyrazolines: a glycerol mediated green approach. RSC Adv 2015. [DOI: 10.1039/c5ra02794b] [Citation(s) in RCA: 21] [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 development of a versatile new one pot, catalyst free, multicomponent-tandem strategy for assembly of spirooxindole-indazolones and spirooxindole-pyrazolines is described.
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Affiliation(s)
- Swastika Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Mohammad Saquib
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | | | - Mandavi Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Jagdamba Singh
- Environmentally Benign Synthesis Lab
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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352
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Li M, Qiu B, Kong XJ, Wen LR. Synthesis of Passerini adducts from aldehydes and isocyanides under the auxiliary of water. Org Chem Front 2015. [DOI: 10.1039/c5qo00202h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
An efficient protocol for the synthesis of the Passerini adducts α-acyloxycarboxamides from aldehydes, isocyanides and water in a molecular ratio of 3 : 1 : 3 was described.
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Affiliation(s)
- Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Bin Qiu
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Xiang-Jing Kong
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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353
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Siddiqui IR, Rahila R, Rai P, Sagir H, Waseem MA. Molecular iodine catalysed domino cyclization in aqueous medium: a simple and efficient synthetic route to 1,4-dihydropyridazines. RSC Adv 2015. [DOI: 10.1039/c5ra05370f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient protocol has been developed for the synthesis of dihydropyridazines using molecular iodine as green catalyst.
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Affiliation(s)
- I. R. Siddiqui
- Laboratory of Green Synthesis
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Rahila Rahila
- Laboratory of Green Synthesis
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Pragati Rai
- Laboratory of Green Synthesis
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Hozeyfa Sagir
- Laboratory of Green Synthesis
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
| | - Malik A. Waseem
- Laboratory of Green Synthesis
- Department of Chemistry
- University of Allahabad
- Allahabad-211002
- India
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354
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Hou S, Xie C, Zhong H, Yu S. Mild water-promoted ruthenium nanoparticles as an efficient catalyst for the preparation of cis-rich pinane. RSC Adv 2015. [DOI: 10.1039/c5ra15283f] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ru nanoparticles were prepared using P123 micelles in water as a stabilizing agent. Microreactors were formed in the hydrogenation reaction system.
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Affiliation(s)
- Shengli Hou
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao
- China
| | - Congxia Xie
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao
- China
| | - Hua Zhong
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao
- China
| | - Shitao Yu
- College of Chemical Engineering
- Qingdao University of Science and Technology
- Qingdao
- China
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355
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Vinoth P, Prasad PSR, Vivekanand T, Maheswari CU, Nagarajan S, Menéndez JC, Sridharan V. Expedient, catalyst-free, three-component synthesis of fused tetrahydropyridines in water. RSC Adv 2015. [DOI: 10.1039/c5ra18804k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An expedient, three-component synthesis of oxazolo[3,2-a]pyridines and pyrido[2,1-b][1,3]oxazines was achieved under catalyst-free conditions in water.
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Affiliation(s)
- Perumal Vinoth
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - P. S. Ram Prasad
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Thavaraj Vivekanand
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - C. Uma Maheswari
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - Subbiah Nagarajan
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
| | - J. Carlos Menéndez
- Departamento de Química Orgánica y Farmacéutica
- Facultad de Farmacia
- Universidad Complutense
- 28040 Madrid
- Spain
| | - Vellaisamy Sridharan
- Organic Synthesis Group
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA University
- Thanjavur 613401
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356
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Feng X, Wang JJ, Xun Z, Zhang JJ, Huang ZB, Shi DQ. Highly selective synthesis of functionalized polyhydroisoquinoline derivatives via a three-component domino reaction. Chem Commun (Camb) 2015; 51:1528-31. [DOI: 10.1039/c4cc08900f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two series of novel functionalized polyhydroisoquinoline derivatives have been synthesized via the three-component domino reaction under microwave irradiation conditions.
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Affiliation(s)
- Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jian-Jun Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhan Xun
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Juan-Juan Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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357
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Gama FHS, de Souza ROMA, Garden SJ. An efficient green protocol for the preparation of acetoacetamides and application of the methodology to a one-pot synthesis of Biginelli dihydropyrimidines. Expansion of dihydropyrimidine topological chemical space. RSC Adv 2015. [DOI: 10.1039/c5ra14355a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one pot synthesis of Biginelli dihydropyrimidines. The novel use of the amino acids allows topological diversification of the chemical space.
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Affiliation(s)
- Fernando H. S. Gama
- Instituto de Química
- Universidade Federal do Rio de Janeiro
- Centro de Tecnologia
- 21949-909 Rio de Janeiro
- Brazil
| | - Rodrigo O. M. A. de Souza
- Instituto de Química
- Universidade Federal do Rio de Janeiro
- Centro de Tecnologia
- 21949-909 Rio de Janeiro
- Brazil
| | - Simon J. Garden
- Instituto de Química
- Universidade Federal do Rio de Janeiro
- Centro de Tecnologia
- 21949-909 Rio de Janeiro
- Brazil
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358
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Gao J, Lai J, Yuan G. Iodine-mediated synthesis of (E)-vinyl sulfones from sodium sulfinates and cinnamic acids in aqueous medium. RSC Adv 2015. [DOI: 10.1039/c5ra10896a] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
A green and highly efficient method for the synthesis of (E)-vinyl sulfones promoted by iodine in water has been developed, without transition metal catalysts and ligands.
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Affiliation(s)
- Jian Gao
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Junyi Lai
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
| | - Gaoqing Yuan
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou
- P. R. China
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359
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Yang K, Song Q. Styryl ether formation from benzyl alcohols under transition-metal-free basic DMSO conditions. Org Biomol Chem 2015; 13:2267-72. [DOI: 10.1039/c4ob02358g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A phenol-catalyzed aerobic oxidative styryl ether formation method was developed with benzyl alcohol under basic DMSO.
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Affiliation(s)
- Kai Yang
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- Huaqiao University
- Xiamen
- China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- Huaqiao University
- Xiamen
- China
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360
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Lu J, Ma EQ, Liu YH, Li YM, Mo LP, Zhang ZH. One-pot three-component synthesis of 1,2,3-triazoles using magnetic NiFe2O4–glutamate–Cu as an efficient heterogeneous catalyst in water. RSC Adv 2015. [DOI: 10.1039/c5ra09517d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A magnetic NiFe2O4 supported glutamate–copper catalyst is prepared and applied for the synthesis of a wide variety of 1,2,3-triazoles in water at room temperature.
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Affiliation(s)
- Jun Lu
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Er-Qian Ma
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Yu-Heng Liu
- The College of Preclinical Medicine
- Hebei Medical University
- Shijiazhuang 050017
- China
| | - Ya-Meng Li
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Li-Ping Mo
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
| | - Zhan-Hui Zhang
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- P. R. China
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361
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Nardi M, Cano NH, Costanzo P, Oliverio M, Sindona G, Procopio A. Aqueous MW eco-friendly protocol for amino group protection. RSC Adv 2015. [DOI: 10.1039/c4ra16683c] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper a new catalyst-free and on-water method for protection of amines and amino acids with di-tert-butyl dicarbonate, 9-fluorenylmethoxycarbonyl chloride, acetyl chloride and tosyl chloride is presented.
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Affiliation(s)
- M. Nardi
- Dipartimento di Chimica
- Università della Calabria Cubo 12C
- 87036-Arcavacata di Rende (CS)
- Italia
| | - N. Herrera Cano
- INFIQC
- Departamento de Química Orgánica
- Facultad de Ciencias Químicas
- Universidad Nacional de Córdoba
- Ciudad Universitaria
| | - P. Costanzo
- Dipartimento di Scienze della Salute
- Università Magna Graecia
- Italia
| | - M. Oliverio
- Dipartimento di Scienze della Salute
- Università Magna Graecia
- Italia
| | - G. Sindona
- Dipartimento di Chimica
- Università della Calabria Cubo 12C
- 87036-Arcavacata di Rende (CS)
- Italia
| | - A. Procopio
- Dipartimento di Scienze della Salute
- Università Magna Graecia
- Italia
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362
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Khan MN, Karamthulla S, Choudhury LH, Haque Faizi MS. Ultrasound assisted multicomponent reactions: a green method for the synthesis of highly functionalized selenopyridines using reusable polyethylene glycol as reaction medium. RSC Adv 2015. [DOI: 10.1039/c5ra02403j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple and benign one-pot protocol for the synthesis of 2-amino selenopyrindine derivatives 4 has been developed using ultrasound assisted multicomponent reactions of aldehydes, malononitrile and benzeneselenol in PEG-400.
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Affiliation(s)
- Md. Nasim Khan
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800 013
- India
| | - Shaik Karamthulla
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800 013
- India
| | - Lokman H. Choudhury
- Department of Chemistry
- Indian Institute of Technology Patna
- Patna-800 013
- India
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363
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Zhao XH, Li Q, Ma XM, Xiong Z, Quan FY, Xia YZ. Alginate fibers embedded with silver nanoparticles as efficient catalysts for reduction of 4-nitrophenol. RSC Adv 2015. [DOI: 10.1039/c5ra07821k] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Silver nanoparticles (AgNPs) have attracted much attention as promising catalysts in various electron transfer reactions due to their high catalytic efficiency.
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Affiliation(s)
- X. H. Zhao
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
| | - Q. Li
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
| | - X. M. Ma
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
| | - Z. Xiong
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
| | - F. Y. Quan
- College of Chemistry and Chemical Engineering
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
| | - Y. Z. Xia
- State Key Laboratory Cultivating Base for New Fiber Materials and Modern Textiles
- Qingdao University
- Qingdao 266071
- PR China
- Collaborative Innovation Center for Marine Biomass Fibers
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364
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Swamy P, Reddy MM, Naresh M, Kumar MA, Srujana K, Durgaiah C, Narender N. Very Important Publication: Hypoiodite-Catalyzed Regioselective Oxidation of Alkenes: An Expeditious Access to Aldehydes in Aqueous Micellar Media. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400986] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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365
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Brønsted acidic hydrogensulfate ionic liquid immobilized SBA-15: [MPIm][HSO4]@SBA-15 as an environmentally friendly, metal- and halogen-free recyclable catalyst for Knoevenagel–Michael-cyclization processes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.09.017] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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366
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More P, Patil A, Salunkhe R. Natural surfactant mediated phytosynthesis and solvatochromic fluorescence of 2-aminobenzamide derivatives. RSC Adv 2014. [DOI: 10.1039/c4ra09514f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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367
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Tu XJ, Fan W, Hao WJ, Jiang B, Tu SJ. Three-component bicyclization providing an expedient access to pyrano[2',3':5,6]pyrano[2,3-b]pyridines and its derivatives. ACS COMBINATORIAL SCIENCE 2014; 16:647-51. [PMID: 25229308 DOI: 10.1021/co500100c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A new three-component bicyclization for the efficient synthesis of a fused pyrano[2,3-b]pyridine library has been developed. The syntheses were achieved by reacting diverse C,O-containing nucleophiles, aldehydes, and 2-aminoprop-1-ene-1,1,3-tricarbonitrile under microwave irradiation, providing 50 examples of chemically and biomedically significant pyrano[2,3-b]pyridine analogues with the concomitant formation of two new rings and four σ bonds. This procedure features short reaction times, low-cost, and easily available starting materials, reliable scalability and mild reaction conditions, as well as operational simplicity.
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Affiliation(s)
- Xing-Jun Tu
- School of Chemistry and Chemical
Engineering, Key Laboratory of Green Synthetic Chemistry for Functional
Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Wei Fan
- School of Chemistry and Chemical
Engineering, Key Laboratory of Green Synthetic Chemistry for Functional
Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Wen-Juan Hao
- School of Chemistry and Chemical
Engineering, Key Laboratory of Green Synthetic Chemistry for Functional
Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Chemical
Engineering, Key Laboratory of Green Synthetic Chemistry for Functional
Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry and Chemical
Engineering, Key Laboratory of Green Synthetic Chemistry for Functional
Materials, Jiangsu Normal University, Xuzhou, 221116, P. R. China
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368
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Organocatalysis in aqueous micellar medium: a new protocol for the synthesis of [1,2,4]-triazolyl-thiazolidinones. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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369
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Song J, Moss J, Yang DC, Guan Z, He YH. Catalyst-free synthesis of trisubstituted tetrahydrothiophenes in water via a cascade sulfa-Michael/aldol (Henry) type reaction. RSC Adv 2014. [DOI: 10.1039/c4ra06273f] [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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370
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Li T, Ma X, Qi J, Sun F, Ma N. Ring Opening ofN-Sulfonyl Aziridines by Amines in Silica-Water. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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371
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Azizi N, Khajeh M, Alipour M. Rapid and Selective Oxidation of Alcohols in Deep Eutectic Solvent. Ind Eng Chem Res 2014. [DOI: 10.1021/ie502019z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Najmedin Azizi
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Meysam Khajeh
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Masoumeh Alipour
- Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
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372
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Microwave-Assisted Three-Component “Catalyst and Solvent-Free” Green Protocol: A Highly Efficient and Clean One-Pot Synthesis of Tetrahydrobenzo[b]pyrans. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/851924] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A green and highly efficient method has been developed for the one-pot synthesis of tetrahydrobenzo[b]pyrans via a three-component condensation of aldehydes, 1,3-cyclic diketones, and malononitrile under MW irradiation without using any catalyst and solvent. This transformation presumably occurs by a sequential Knoevenagel condensation, Michael addition, and intramolecular cyclization. Operational simplicity, solvent and catalyst-free conditions, the compatibility with various functional groups, nonchromatographic purification technique, and high yields are the notable advantages of this procedure.
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373
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Chavan PV, Pandit KS, Desai UV, Kulkarni MA, Wadgaonkar PP. Cellulose supported cuprous iodide nanoparticles (Cell-CuI NPs): a new heterogeneous and recyclable catalyst for the one pot synthesis of 1,4-disubstituted – 1,2,3-triazoles in water. RSC Adv 2014. [DOI: 10.1039/c4ra05080k] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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374
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Rastogi T, Leder C, Kümmerer K. Designing green derivatives of β-blocker Metoprolol: a tiered approach for green and sustainable pharmacy and chemistry. CHEMOSPHERE 2014; 111:493-499. [PMID: 24997957 DOI: 10.1016/j.chemosphere.2014.03.119] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/26/2014] [Accepted: 03/27/2014] [Indexed: 06/03/2023]
Abstract
The presences of micro-pollutants (active pharmaceutical ingredients, APIs) are increasingly seen as a challenge of the sustainable management of water resources worldwide due to ineffective effluent treatment and other measures for their input prevention. Therefore, novel approaches are needed like designing greener pharmaceuticals, i.e. better biodegradability in the environment. This study addresses a tiered approach of implementing green and sustainable chemistry principles for theoretically designing better biodegradable and pharmacologically improved pharmaceuticals. Photodegradation process coupled with LC-MS(n) analysis and in silico tools such as quantitative structure-activity relationships (QSAR) analysis and molecular docking proved to be a very significant approach for the preliminary stages of designing chemical structures that would fit into the "benign by design" concept in the direction of green and sustainable pharmacy. Metoprolol (MTL) was used as an example, which itself is not readily biodegradable under conditions found in sewage treatment and the aquatic environment. The study provides the theoretical design of new derivatives of MTL which might have the same or improved pharmacological activity and are more degradable in the environment than MTL. However, the in silico toxicity prediction by QSAR of those photo-TPs indicated few of them might be possibly mutagenic and require further testing. This novel approach of theoretically designing 'green' pharmaceuticals can be considered as a step forward towards the green and sustainable pharmacy field. However, more knowledge and further experience have to be collected on the full scope, opportunities and limitations of this approach.
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Affiliation(s)
- Tushar Rastogi
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
| | - Christoph Leder
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
| | - Klaus Kümmerer
- Sustainable Chemistry and Material Resources, Institute of Sustainable and Environmental Chemistry, Leuphana University Lüneburg, C13, DE-21335 Lüneburg, Germany.
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375
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Ma YL, Wang KM, Lin XR, Yan SJ, Lin J. Three-component cascade reaction synthesis of polycyclic 1,4-dihydropyridine derivatives in water. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.07.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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376
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Vidyacharan S, Sagar A, Chaitra NC, Sharada DS. A facile synthesis of 2H-indazoles under neat conditions and further transformation into aza-γ-carboline alkaloid analogues in a tandem one-pot fashion. RSC Adv 2014. [DOI: 10.1039/c4ra06838f] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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377
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Stavber G, Časar Z. CuIIand Cu0Catalyzed Mono Borylation of Unsaturated Hydrocarbons with B2pin2: Entering into the Water. ChemCatChem 2014. [DOI: 10.1002/cctc.201402176] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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378
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Bai L, Zhang X, Ma N. Water-Promoted Ring-Opening Reactions ofN-Substituted Saccharins and Phthalimides by Amines. CHINESE J CHEM 2014. [DOI: 10.1002/cjoc.201400253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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379
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Yu JS, Liu YL, Tang J, Wang X, Zhou J. Highly Efficient “On Water” Catalyst-Free Nucleophilic Addition Reactions Using Difluoroenoxysilanes: Dramatic Fluorine Effects. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404432] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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380
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Yu JS, Liu YL, Tang J, Wang X, Zhou J. Highly Efficient “On Water” Catalyst-Free Nucleophilic Addition Reactions Using Difluoroenoxysilanes: Dramatic Fluorine Effects. Angew Chem Int Ed Engl 2014; 53:9512-6. [DOI: 10.1002/anie.201404432] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 05/29/2014] [Indexed: 12/12/2022]
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381
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Zuo YJ, Qu J. How does aqueous solubility of organic reactant affect a water-promoted reaction? J Org Chem 2014; 79:6832-9. [PMID: 25000435 DOI: 10.1021/jo500733v] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
It was widely reported that under the "on water" condition, various water-promoted organic reactions can proceed with very high speed. Thus, it is considered that the aqueous solubility of reactant is not an important issue in these reactions. Three types of water-promoted organic reactions were investigated in the current study to distinguish whether the reaction rate of an aqueous reaction was affected by the aqueous solubilities of the reactants. The results showed that, for a Diels-Alder reaction which was fast under the neat conditions, the aqueous solubilities of reactants had little influence on the reaction. However, for the reactions which proceeded slowly under the neat conditions, such as [2σ+2σ+2π] cycloaddition reactions and epoxide aminolysis reactions, the reactants with good aqueous solubilities proceeded fast in water. Poorly aqueous soluble reactants reacted slowly or did not react under the "on water" condition, and an appropriate amount of organic cosolvent was needed to make the reaction become efficient. This evidence suggested that for these two types of reactions, the dissolution of the reactants in water was required.
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Affiliation(s)
- Yi-Jie Zuo
- State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
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382
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Dhakshinamoorthy A, Asiri AM, Garcia H. Catalysis by metal–organic frameworks in water. Chem Commun (Camb) 2014; 50:12800-14. [DOI: 10.1039/c4cc04387a] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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383
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Trujillo C, Sánchez-Sanz G, Karpavičienė I, Jahn U, Čikotienė I, Rulíšek L. Divergent Pathways and Competitive Mechanisms of Metathesis Reactions between 3-Arylprop-2-ynyl Esters and Aldehydes: An Experimental and Theoretical Study. Chemistry 2014; 20:10360-70. [DOI: 10.1002/chem.201402551] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/05/2022]
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384
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Mehrparvar S, Balalaie S, Rabbanizadeh M, Rominger F, Ghabraie E. Synthesis of functionalized chromones through sequential reactions in aqueous media. Org Biomol Chem 2014; 12:5757-65. [PMID: 24968923 DOI: 10.1039/c4ob00618f] [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]
Abstract
An efficient sequential four-component reaction of chromone carbaldehydes, Meldrum's acid, 4-hydroxyl coumarin or 6-methyl-4-hydroxyl-pyrone and primary alcohols is reported which leads to 5a-i in aqueous media. Replacing the primary alcohol with isopropyl alcohol and tert-butyl alcohol results in different products 10 and 11. The environmentally friendly features, good to high yields and easy work-up are advantages of this approach.
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Affiliation(s)
- Saber Mehrparvar
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P. O. Box 15875-4416, Tehran, Iran.
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385
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Jiang B, Ye Q, Fan W, Wang SL, Tu SJ, Li G. Four-component strategy for selective synthesis of azepino[5,4,3-cd]indoles and pyrazolo[3,4-b]pyridines. Chem Commun (Camb) 2014; 50:6108-11. [PMID: 24777181 PMCID: PMC4060249 DOI: 10.1039/c4cc00740a] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel four-component strategy for the selective synthesis of fused azepino[5,4,3-cd]indoles and pyrazolo [3,4-b]pyridines has been established. The bond-forming efficiency, accessibility of starting materials and substrate scope provide invaluable access to tetra-, and bis-heterocyclic scaffolds.
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Affiliation(s)
- Bo Jiang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Qin Ye
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Wei Fan
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Shu-Liang Wang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Shu-Jiang Tu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou, 211116, P. R. China
| | - Guigen Li
- Institute of Chemistry & Biomedical Sciences, Nanjing University, Nanjing 210093, P. R. China
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA;
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386
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Ultrasound-assisted rapid sustainable synthesis of substituted thiourea. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1238-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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387
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K’tir H, Amira A, Berredjem M, Aouf NE. A New, Efficient, and Catalyst-free Microwave-assisted Approach for Formation of O- tert-Butoxy Carbonates. CHEM LETT 2014. [DOI: 10.1246/cl.140075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hacène K’tir
- Laboratory of Applied Organic Chemistry (LAOC), Bioorganic Chemistry Group, Sciences Faculty, Chemistry Department, Badji Mokhtar-Annaba University
| | - Aïcha Amira
- Laboratory of Applied Organic Chemistry (LAOC), Bioorganic Chemistry Group, Sciences Faculty, Chemistry Department, Badji Mokhtar-Annaba University
| | - Malika Berredjem
- Laboratory of Applied Organic Chemistry (LAOC), Bioorganic Chemistry Group, Sciences Faculty, Chemistry Department, Badji Mokhtar-Annaba University
| | - Nour-Eddine Aouf
- Laboratory of Applied Organic Chemistry (LAOC), Bioorganic Chemistry Group, Sciences Faculty, Chemistry Department, Badji Mokhtar-Annaba University
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388
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Jiang B, Fan W, Sun MY, Ye Q, Wang SL, Tu SJ, Li G. Domino reaction of arylglyoxals with pyrazol-5-amines: selective access to pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles. J Org Chem 2014; 79:5258-68. [PMID: 24833111 PMCID: PMC4059248 DOI: 10.1021/jo500823z] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
New
multicomponent domino reactions of arylglyoxals with pyrazol-5-amines
have been established, providing selective access to unprecedented
pyrazolo-fused 1,7-naphthyridines, 1,3-diazocanes, and pyrroles (up
to 52 examples). The unreported dipyrazolo-fused 1,7-naphthyridines
were regioselectively synthesized through a special double [3 + 2
+ 1] heteroannulation accompanied by direct C–C formation between
two electrophilic sites of arylglyoxals. The unusual [3 + 3 + 1 +
1] cyclization resulted in 20 examples of novel dipyrazolo-fused 1,3-diazocanes,
whereas pyrrolo[2,3-c]pyrazoles were obtained in
good yields by varying arylglyoxals 1 and pyrazol-5-amines 2 in the ratio 1:2. Mechanisms of formation of these three
new types of heterocycles are also proposed.
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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 221116, People's Republic of China
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389
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Luan Y, Yu J, Zhang X, Schaus SE, Wang G. Diastereoselective three-component synthesis of β-amino carbonyl compounds using diazo compounds, boranes, and acyl imines under catalyst-free conditions. J Org Chem 2014; 79:4694-8. [PMID: 24787904 PMCID: PMC4033649 DOI: 10.1021/jo5003505] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Diazo
compounds, boranes, and acyl imines undergo a three-component
Mannich condensation reaction under catalyst-free conditions to give
the anti β-amino carbonyl compounds in high diastereoselectivity.
The reaction tolerates a variety of functional groups, and an asymmetric
variant was achieved using the (−)-phenylmenthol as chiral
auxiliary in good yield and selectivity. These β-amino carbonyl
compounds are valuable intermediates, which can be transformed to
many potential bioactive molecules.
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Affiliation(s)
- Yi Luan
- School of Materials Science and Engineering, University of Science and Technology Beijing , 30 Xueyuan Road, Haidian District, Beijing 100083, P. R. China
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390
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Oliverio M, Nardi M, Costanzo P, Cariati L, Cravotto G, Giofrè SV, Procopio A. Non-conventional methodologies in the synthesis of 1-indanones. Molecules 2014; 19:5599-610. [PMID: 24786845 PMCID: PMC6271961 DOI: 10.3390/molecules19055599] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 04/19/2014] [Accepted: 04/23/2014] [Indexed: 11/21/2022] Open
Abstract
1-Indanones have been successfully prepared by means of three different non-conventional techniques, namely microwaves, high-intensity ultrasound and a Q-tube™ reactor. A library of differently substituted 1-indanones has been prepared via one-pot intramolecular Friedel-Crafts acylation and their efficiency and “greenness” have been compared.
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Affiliation(s)
- Manuela Oliverio
- Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, Germaneto (CZ) 88100, Italy.
| | - Monica Nardi
- Dipartimento di Chimica, Università della Calabria, Cubo 12C, Arcavacata di Rende (CS) 87036, Italy.
| | - Paola Costanzo
- Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, Germaneto (CZ) 88100, Italy.
| | - Luca Cariati
- Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, Germaneto (CZ) 88100, Italy.
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria 9, Torino 10125, Italy.
| | - Salvatore Vincenzo Giofrè
- Dipartimento Scienza del Farmaco e Prodotti per la salute, Università di Messina, Via Santissima Annunziata, Messina 98168, Italy,.
| | - Antonio Procopio
- Dipartimento di Scienze della Salute, Università Magna Graecia, Viale Europa, Germaneto (CZ) 88100, Italy.
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391
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Gawande MB, Shelke SN, Zboril R, Varma RS. Microwave-assisted chemistry: synthetic applications for rapid assembly of nanomaterials and organics. Acc Chem Res 2014; 47:1338-48. [PMID: 24666323 DOI: 10.1021/ar400309b] [Citation(s) in RCA: 317] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The magic of microwave (MW) heating technique, termed the Bunsen burner of the 21st century, has emerged as a valuable alternative in the synthesis of organic compounds, polymers, inorganic materials, and nanomaterials. Important innovations in MW-assisted chemistry now enable chemists to prepare catalytic materials or nanomaterials and desired organic molecules, selectively, in almost quantitative yields and with greater precision than using conventional heating. By controlling the specific MW parameters (temperature, pressure, and ramping of temperature) and choice of solvents, researchers can now move into the next generation of advanced nanomaterial design and development. Microwave-assisted chemical reactions are now well-established practices in the laboratory setting although some controversy lingers as to how MW irradiation is able to enhance or influence the outcome of chemical reactions. Much of the discussion has focused on whether the observed effects can, in all instances, be rationalized by purely thermal Arrhenius-based phenomena (thermal microwave effects), that is, the importance of the rapid heating and high bulk reaction temperatures that are achievable using MW dielectric heating in sealed reaction vessels, or whether these observations can be explained by so-called "nonthermal" or "specific microwave" effects. In recent years, innovative and significant advances have occurred in MW hardware development to help delineate MW effects, especially the use of silicon carbide (SiC) reaction vessels and the accurate measurement of temperature using fiber optic (FO) temperature probes. SiC reactors appear to be good alternatives to MW transparent borosilicate glass, because of their high microwave absorptivity, and as such they serve as valuable tools to demystify the claimed magical MW effects. This enables one to evaluate the influence of the electromagnetic field on the specific chemical reactions, under truly identical conventional heating conditions, wherein temperature is measured accurately by fiber optic (FO) probe. This Account describes the current status of MW-assisted synthesis highlighting the introduction of various prototypes of equipment, classes of organic reactions pursued using nanomaterials, and the synthesis of unique and multifunctional nanomaterials; the ensuing nanomaterials possess zero-dimensional to three-dimensional shapes, such as spherical, hexagonal, nanoprisms, star shapes, and nanorods. The synthesis of well-defined nanomaterials and nanocatalysts is an integral part of nanotechnology and catalysis science, because it is imperative to control their size, shape, and compositional engineering for unique deployment in the field of nanocatalysis and organic synthesis. MW-assisted methods have been employed for the convenient and reproducible synthesis of well-defined noble and transition core-shell metallic nanoparticles with tunable shell thicknesses. Some of the distinctive attributes of MW-selective heating in the synthesis and applications of magnetic nanocatalysts in organic synthesis under benign reaction conditions are highlighted. Sustainable nanomaterials and their applications in benign media are an ideal blend for the development of greener methodologies in organic synthesis; MW heating provides superb value to the overall sustainable process development via process intensification including the flow systems.
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Affiliation(s)
- Manoj B. Gawande
- Regional Centre
of Advanced Technologies and Materials, Faculty of Science, Department
of Physical Chemistry, Palacky University, Slechtitelu 11, 783 71, Olomouc, Czech Republic
| | - Sharad N. Shelke
- Department of Chemistry, S.S.G.M. College, Kopargaon, Dist-Ahmednagar (MH) 423601, India
| | - Radek Zboril
- Regional Centre
of Advanced Technologies and Materials, Faculty of Science, Department
of Physical Chemistry, Palacky University, Slechtitelu 11, 783 71, Olomouc, Czech Republic
| | - Rajender S. Varma
- Sustainable Technology Division, National
Risk Management Research Laboratory, US Environmental Protection Agency, MS 443, 26 West Martin Luther King Drive, Cincinnati, Ohio 45268, United States
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392
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Alvim HGO, Lima TB, de Oliveira AL, de Oliveira HCB, Silva FM, Gozzo FC, Souza RY, da Silva WA, Neto BAD. Facts, Presumptions, and Myths on the Solvent-Free and Catalyst-Free Biginelli Reaction. What is Catalysis for? J Org Chem 2014; 79:3383-97. [DOI: 10.1021/jo5001498] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Haline G. O. Alvim
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Tatiani B. Lima
- Institute
of Chemistry, University of Campinas (Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Aline L. de Oliveira
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Heibbe C. B. de Oliveira
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Fabricio M. Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Fabio C. Gozzo
- Institute
of Chemistry, University of Campinas (Unicamp), Campinas, São Paulo 13083-970, Brazil
| | - Roberto Y. Souza
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Wender A. da Silva
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
| | - Brenno A. D. Neto
- Laboratory
of Medicinal and Technological Chemistry, University of Brasília, Chemistry Institute (IQ-UnB), Campus Universitário Darcy
Ribeiro, P.O.Box 4478, Brasília, Distrito Federal CEP 70904-970, Brazil
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393
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Nano-indium oxide: An efficient catalyst for one-pot synthesis of 2,3-dihydroquinazolin-4(1H)-ones with a greener prospect. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.01.032] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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394
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Chen G, Zhou Y, Long Z, Wang X, Li J, Wang J. Mesoporous polyoxometalate-based ionic hybrid as a triphasic catalyst for oxidation of benzyl alcohol with H(2)O(2) on water. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4438-4446. [PMID: 24601477 DOI: 10.1021/am5001757] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A self-assembled mesoporous polyoxometalate-based ionic hybrid catalyst [TMGHA]2.4H0.6PW was prepared by combination of alcohol amino-tethered guanidinium ionic liquid [TMGHA]Cl with Keggin phosphotungstic acid H3PW12O40 (PW). Nitrogen sorption experiment validated the formation of mesostructure with moderate BET surface area, and scanning and transmission electron microscopy (SEM and TEM) showed a fluffy coral-shaped morphology for the hybrid. The contact angle test displayed that the hybrid owned hydrophilic-hydrophobic balanced surface that exhibited well wettability for both water and organic substrate like benzyl alcohol. Therefore, the hybrid can efficiently catalyze the water-mediated triphasic oxidation of benzyl alcohol with H2O2. During the reaction, the triphase catalytic system showed a special "on water" effect mainly due to the suitable mesostructure and surface wettability, thus providing some clues for the preparation of green heterogeneous catalyst.
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Affiliation(s)
- Guojian Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing Tech University , Nanjing 210009, PR China
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395
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Sela T, Vigalok A. Organic Synthesis “on Water” vs “on Liquids”: A Comparative Analysis. Org Lett 2014; 16:1964-7. [DOI: 10.1021/ol500518n] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Tal Sela
- School of Chemistry, The
Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
| | - Arkadi Vigalok
- School of Chemistry, The
Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel
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396
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Paladhi S, Bhati M, Panda D, Dash J. Thiazolidinedione–Isatin Conjugates via an Uncatalyzed Diastereoselective Aldol Reaction on Water. J Org Chem 2014; 79:1473-80. [DOI: 10.1021/jo402515d] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sushovan Paladhi
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Department
of Chemical Science, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur, 741252, India
| | - Meeta Bhati
- Department
of Chemical Science, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur, 741252, India
| | - Deepanjan Panda
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Jyotirmayee Dash
- Department
of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
- Department
of Chemical Science, Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, Mohanpur, 741252, India
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397
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Wang Q, Deng Y, Shi F. NaF regulated aqueous phase synthesis of aromatic amides and imines catalyzed by Au/HT. Catal Sci Technol 2014. [DOI: 10.1039/c4cy00210e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Au/HT catalyst was found to be an efficient heterogeneous catalyst for the coupling reaction of aromatic alcohols and amines.
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Affiliation(s)
- Qianqian Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Center for Green Chemistry and Catalysis
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
| | - Youquan Deng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Center for Green Chemistry and Catalysis
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
| | - Feng Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Center for Green Chemistry and Catalysis
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
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398
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Kahandal SS, Kale SR, Gawande MB, Zboril R, Varma RS, Jayaram RV. Greener iodination of arenes using sulphated ceria–zirconia catalysts in polyethylene glycol. RSC Adv 2014. [DOI: 10.1039/c3ra46537c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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399
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Kahandal SS, Kale SR, Gawande MB, Jayaram RV. A mild route for one pot synthesis of 5,6-unsubstituted 1,4-dihydropyridines catalyzed by sulphated mixed metal oxides. Catal Sci Technol 2014. [DOI: 10.1039/c3cy00651d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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400
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Rajabi F, Luque R. An efficient renewable-derived surfactant for aqueous esterification reactions. RSC Adv 2014. [DOI: 10.1039/c3ra45757e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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