151
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Hajra S, Maity S, Roy S, Maity R, Samanta S. Brønsted Acid Promoted Regioselective C-3 Arylation and Heteroarylation of Spiro-epoxyoxindoles for the Construction of All Carbon Quaternary Centres: A Detailed Study. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801524] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Saumen Hajra
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Subrata Maity
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
- Department of Chemistry; Indian Institute of Technology Kharagpur; 721302 Kharagpur India
| | - Sayan Roy
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Ramkrishna Maity
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
| | - Srikrishna Samanta
- Sanjay Gandhi Post-Graduate Institute of Medical Sciences Campus; Centre of Biomedical Research; Raebareli Road, Lucknow 226014 India
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152
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Goodajdar BM, Akbari F, Davarpanah J. PEG‐DIL‐based MnCl42−: A novel phase transfer catalyst for nucleophilic substitution reactions of benzyl halides. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Farideh Akbari
- Department of ChemistryIslamic Azad University Omidiyeh Branch Omidiyeh Iran
| | - Jamal Davarpanah
- Chemistry Department, Production Technology Research Institute – ACECR Ahvaz Iran
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153
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Ahmed K, Saikia G, Begum P, Gogoi SR, Sharma M, Talukdar H, Islam NS. Selective and Green Sulfoxidation in Water using a New Chitosan Supported Mo(VI) Complex as Heterogeneous Catalyst. ChemistrySelect 2018. [DOI: 10.1002/slct.201803000] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kabirun Ahmed
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Gangutri Saikia
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Pakiza Begum
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Sandhya Rani Gogoi
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Mitu Sharma
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Hiya Talukdar
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
| | - Nashreen S. Islam
- Department of Chemical Sciences; Tezpur University Napaam; Tezpur- 784028, Assam India
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154
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Ruiz‐Castañeda M, Carrión MC, Santos L, Manzano BR, Espino G, Jalón FA. A Biphasic Medium Slows Down the Transfer Hydrogenation and Allows a Selective Catalytic Deuterium Labeling of Amines from Imines Mediated by a Ru−H/D+Exchange in D2O. ChemCatChem 2018. [DOI: 10.1002/cctc.201801343] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Margarita Ruiz‐Castañeda
- Facultad de Ciencias y Tecnologías Químicas-IRICAUniversity of Castilla-La Mancha Avda. C. J. Cela, 10 Ciudad Real 13071 Spain
| | - M. Carmen Carrión
- Facultad de Ciencias y Tecnologías Químicas-IRICAUniversity of Castilla-La Mancha Avda. C. J. Cela, 10 Ciudad Real 13071 Spain
| | - Lucía Santos
- Facultad de Ciencias y Tecnologías Químicas-IRICAUniversity of Castilla-La Mancha Avda. C. J. Cela, 10 Ciudad Real 13071 Spain
| | - Blanca R. Manzano
- Facultad de Ciencias y Tecnologías Químicas-IRICAUniversity of Castilla-La Mancha Avda. C. J. Cela, 10 Ciudad Real 13071 Spain
| | - Gustavo Espino
- Departamento de Química Facultad de CienciasUniversity of Burgos Plaza Misael Bañuelos s/n Burgos 09111 Spain
| | - Félix A. Jalón
- Facultad de Ciencias y Tecnologías Químicas-IRICAUniversity of Castilla-La Mancha Avda. C. J. Cela, 10 Ciudad Real 13071 Spain
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155
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Piano-stool Ru(II)-benzene complexes bearing D/L-alanine derived chiral aroylthiourea ligands for asymmetric transfer hydrogenation of ketones in water. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1566-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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156
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Cruz-Hernández C, Martínez-Martínez E, Hernández-González PE, Juaristi E. Synthesis of a New N-Diaminophosphoryl-N′-[(2S)-2-pyrrolidinylmethyl]thiourea as a Chiral Organocatalyst for the Stereoselective Michael Addition of Cyclohexanone to Nitrostyrenes and Chalcones - Application in Cascade Processes for the Synthesis of Polyc. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801339] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Carlos Cruz-Hernández
- Departamento de Química; Centro de Investigación y de Estudios Avanzados; Avenida IPN 2508 07360 Ciudad de México Mexico
| | - Eduardo Martínez-Martínez
- Departamento de Química; Centro de Investigación y de Estudios Avanzados; Avenida IPN 2508 07360 Ciudad de México Mexico
| | - Perla E. Hernández-González
- Departamento de Química; Centro de Investigación y de Estudios Avanzados; Avenida IPN 2508 07360 Ciudad de México Mexico
| | - Eusebio Juaristi
- Departamento de Química; Centro de Investigación y de Estudios Avanzados; Avenida IPN 2508 07360 Ciudad de México Mexico
- El Colegio Nacional; Luis González Obregón 23, Centro Histórico 06020 Ciudad de México Mexico
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157
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Patel ND, Sieber JD, Tcyrulnikov S, Simmons BJ, Rivalti D, Duvvuri K, Zhang Y, Gao DA, Fandrick KR, Haddad N, Lao KS, Mangunuru HPR, Biswas S, Qu B, Grinberg N, Pennino S, Lee H, Song JJ, Gupton BF, Garg NK, Kozlowski MC, Senanayake CH. Computationally Assisted Mechanistic Investigation and Development of Pd-Catalyzed Asymmetric Suzuki-Miyaura and Negishi Cross-Coupling Reactions for Tetra- ortho-Substituted Biaryl Synthesis. ACS Catal 2018; 8:10190-10209. [PMID: 30450265 DOI: 10.1021/acscatal.8b02509] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Metal-catalyzed cross-coupling reactions are extensively employed in both academia and industry for the synthesis of biaryl derivatives for applications to both medicine and material science. Application of these methods to prepare tetra-ortho-substituted biaryls leads to chiral atropisomeric products that introduces the opportunity to use catalyst-control to develop asymmetric cross-coupling procedures to access these important compounds. Asymmetric Pd-catalyzed Suzuki-Miyaura and Negishi cross-coupling reactions to form tetra-ortho-substituted biaryls were studied employing a collection of P-chiral dihydrobenzooxaphosphole (BOP) and dihydrobenzoazaphosphole (BAP) ligands. Enantioselectivities of up to 95:5 and 85:15 er were identified for the Suzuki-Miyaura and Negishi cross-coupling reactions, respectively. Unique ligands for the Suzuki-Miyaura reaction vs the Negishi reaction were identified. A computational study on these Suzuki-Miyaura and Negishi cross-coupling reactions enabled an understanding in the differences between the enantiodiscriminating events between these two cross-coupling reactions. These results support that enantioselectivity in the Negishi reaction results from the reductive elimination step, whereas all steps in the Suzuki-Miyaura catalytic cycle contribute to the overall enantioselection with transmetalation and reductive elimination providing the most contribution to the observed selectivities.
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Affiliation(s)
- Nitinchandra D. Patel
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Joshua D. Sieber
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemistry, Virginia Commonwealth University, 1001 West Main Street, Richmond, Virginia 23284-3028, United States
| | - Sergei Tcyrulnikov
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Bryan J. Simmons
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Daniel Rivalti
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Krishnaja Duvvuri
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Yongda Zhang
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Donghong A. Gao
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Keith R. Fandrick
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nizar Haddad
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Kendricks So Lao
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, United States
| | - Hari P. R. Mangunuru
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Soumik Biswas
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Bo Qu
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Nelu Grinberg
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Scott Pennino
- Material and Analytical Sciences, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Heewon Lee
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Jinhua J. Song
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - B. Frank Gupton
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, 601 Main Street, P.O. Box 843028, Richmond, Virginia 23284-3028, United States
| | - Neil K. Garg
- Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States
| | - Marisa C. Kozlowski
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Chris H. Senanayake
- Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc, 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
- Astatech BioPharmaceutical Corporation, 488 Kelin West Road, Wengjiang, Chendu, Sichuan 611130, People’s Republic of China
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158
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Liang W, Zhang T, Liu Y, Huang Y, Liu Z, Liu Y, Yang B, Zhou X, Zhang J. Polydimethylsiloxane Sponge-Supported Nanometer Gold: Highly Efficient Recyclable Catalyst for Cross-Dehydrogenative Coupling in Water. CHEMSUSCHEM 2018; 11:3586-3590. [PMID: 30125475 DOI: 10.1002/cssc.201801180] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 08/16/2018] [Indexed: 06/08/2023]
Abstract
Polydimethylsiloxane (PDMS, a stable hydrophobic polymer material) sponge-supported nanometer-sized gold can be used as a highly efficient recyclable catalyst for cross-dehydrogenative coupling of tertiary amines with various nucleophiles in water. This PDMS sponge nanometer gold catalyst can provide much better activity than the free nanometer gold in water. The reaction can be scaled up by using an easy-to-build continuous flow reactor. These results indicate the potential application of porous hydrophobic PDMS sponge material as a promising support for highly efficient recyclable catalysts in water.
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Affiliation(s)
- Weiwei Liang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Teng Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yufei Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yuxing Huang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhipeng Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yizhen Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Bo Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Junmin Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
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159
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Alderson JM, Corbin JR, Schomaker JM. Investigation of transition metal-catalyzed nitrene transfer reactions in water. Bioorg Med Chem 2018; 26:5270-5273. [PMID: 29681485 PMCID: PMC6657797 DOI: 10.1016/j.bmc.2018.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/27/2018] [Accepted: 04/01/2018] [Indexed: 11/15/2022]
Abstract
Transition metal-catalyzed nitrene transfer is a powerful method for incorporating new CN bonds into relatively unfunctionalized scaffolds. In this communication, we report the first examples of site- and chemoselective CH bond amination reactions in aqueous media. The unexpected ability to employ water as the solvent in these reactions is advantageous in that it eliminates toxic solvent use and enables reactions to be run at increased concentrations with lower oxidant loadings. Using water as the reaction medium has potential to expand the scope of nitrene transfer to encompass a variety of biomolecules and highly polar substrates, as well as enable pH control over the site-selectivity of CH bond amination.
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Affiliation(s)
- Juliet M Alderson
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706 USA
| | - Joshua R Corbin
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706 USA
| | - Jennifer M Schomaker
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706 USA.
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160
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Chakraborty A, Debnath S, Ghosh T, Maiti DK, Majumdar S. An efficient strategy for N-alkylation of benzimidazoles/imidazoles in SDS-aqueous basic medium and N-alkylation induced ring opening of benzimidazoles. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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161
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García-Álvarez J, Hevia E, Capriati V. The Future of Polar Organometallic Chemistry Written in Bio-Based Solvents and Water. Chemistry 2018; 24:14854-14863. [PMID: 29917274 DOI: 10.1002/chem.201802873] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 12/22/2022]
Abstract
There is a strong imperative to reduce the release of volatile organic compounds (VOCs) into the environment, and many efforts are currently being made to replace conventional hazardous VOCs in favour of safe, green and bio-renewable reaction media that are not based on crude petroleum. Recent ground-breaking studies from a few laboratories worldwide have shown that both Grignard and (functionalised) organolithium reagents, traditionally handled under strict exclusion of air and humidity and in anhydrous VOCs, can smoothly promote both nucleophilic additions to unsaturated substrates and nucleophilic substitutions in water and other bio-based solvents (glycerol, deep eutectic solvents), competitively with protonolysis, at room temperature and under air. The chemistry of polar organometallics in the above protic media is a complex phenomenon influenced by several factors, and understanding its foundational character is stimulating in the perspective of the development of a sustainable organometallic chemistry.
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Affiliation(s)
- Joaquín García-Álvarez
- Laboratorio de Compuestos Organometálicos y Catálisis, Departamento de Química Orgánica e Inorganica (IUQOEM), Instituto, Universitario de Química Organometálica "Enrique Moles", Facultad de Química, Universidad de Oviedo, 33071, Oviedo, Spain
| | - Eva Hevia
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, UK
| | - Vito Capriati
- Dipartimento di Farmacia-Scienze del Farmaco, Università di Bari "Aldo Moro", Consorzio C.I.N.M.P.I.S., Via E. Orabona, 4, 70125, Bari, Italy
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162
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry; Visva-Bharati (a Central University); Santiniketan-731 235 West Bengal India
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163
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Li F, Wang J, Pei W, Ma H, Li H, Cui M, Peng S, Wang S, Liu L. Catalytic alkenylation of γ-substituted butenolides with cyclic N -sulfonylated imines in water leading to α-arylidene butenolide derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.06.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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164
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Dehydrogenative Transformation of Alcoholic Substrates in Aqueous Media Catalyzed by an Iridium Complex Having a Functional Ligand with α-Hydroxypyridine and 4,5-Dihydro-1H-imidazol-2-yl Moieties. Catalysts 2018. [DOI: 10.3390/catal8080312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
A new catalytic system that employs water as an environmentally friendly solvent for the dehydrogenative oxidation of alcohols and lactonization of diols has been developed. In this catalytic system, a water-soluble dicationic iridium complex having a functional ligand that comprises α-hydroxypyridine and 4,5-dihydro-1H-imidazol-2-yl moieties exhibits high catalytic performance. For example, the catalytic dehydrogenative oxidation of 1-phenylethanol in the presence of 0.25 mol % of the iridium catalyst and base under reflux in water proceeded to give acetophenone in 92% yield. Additionally, under similar reaction conditions, the iridium-catalyzed dehydrogenative lactonization of 1,2-benzenedimethanol gave phthalide in 98% yield.
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165
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Dandia A, Sharma R, Indora A, Parewa V. Kosmotropes Perturbation and Ambiphilic Dual Activation: Responsible Features for the Construction of C-N Bond towards the Synthesis of Quinazolin-4(3H
)-ones in Water. ChemistrySelect 2018. [DOI: 10.1002/slct.201801224] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anshu Dandia
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Ruchi Sharma
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Aayushi Indora
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
| | - Vijay Parewa
- Centre of Advanced Studies; Department of Chemistry; University of Rajasthan, Jaipur; India
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166
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Biorenewable Deep Eutectic Solvent for Selective and Scalable Conversion of Furfural into Cyclopentenone Derivatives. Molecules 2018; 23:molecules23081891. [PMID: 30060584 PMCID: PMC6222497 DOI: 10.3390/molecules23081891] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/13/2018] [Accepted: 07/26/2018] [Indexed: 12/26/2022] Open
Abstract
The development of novel synthetic routes to produce bioactive compounds starting from renewable sources has become an important research area in organic and medicinal chemistry. Here, we present a low-cost procedure for the tunable and selective conversion of biomass-produced furfural to cyclopentenone derivatives using a mixture of choline chloride and urea as a biorenewable deep eutectic solvent (DES). The proposed medium is a nontoxic, biodegradable, and could be reused up to four times without any unfavorable effect on the reaction yield. The process is tunable, clean, cheap, simple and scalable and meets most of the criteria; therefore, it can be considered as an environmental sustainable process in a natural reaction medium.
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167
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Yang X, Yang W, Yao Y, Deng Y, Zuo X, Yang D. Water-Promoted Ir-Catalyzed Ring-Opening of Oxa(aza)benzonorbornadienes with Fluoroalkylamines. J Org Chem 2018; 83:10097-10106. [DOI: 10.1021/acs.joc.8b01396] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xin Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Wen Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yongqi Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Yingying Deng
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Xiongjun Zuo
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
| | - Dingqiao Yang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou 510006, People’s Republic of China
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168
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Tornquist BL, de Paula Bueno G, Manzano Willig JC, de Oliveira IM, Stefani HA, Rafique J, Saba S, Almeida Iglesias B, Botteselle GV, Manarin. F. Ytterbium (III) triflate/Sodium Dodecyl Sulfate: A Versatile Recyclable and Water‐Tolerant Catalyst for the Synthesis of Bis(indolyl)methanes (BIMs). ChemistrySelect 2018. [DOI: 10.1002/slct.201800673] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bruna Luisa Tornquist
- Centro de Engenharias e Ciências Exatas-CECEUniversidade Estadual do Oeste do Paraná, Toledo 85903-000 PR-Brazil
| | - Gabriel de Paula Bueno
- Centro de Engenharias e Ciências Exatas-CECEUniversidade Estadual do Oeste do Paraná, Toledo 85903-000 PR-Brazil
| | | | | | - Helio A. Stefani
- Departamento de FarmáciaFaculdade de Ciências FarmacêuticasUniversidade de São Paulo São Paulo 05508-000 SP-Brazil
| | - Jamal Rafique
- Departamento de QuímicaUniversidade Federal de Santa Catarina, Florianopolis 88040-900 SC-Brazil
| | - Sumbal Saba
- Departamento de QuímicaUniversidade Federal de Santa Catarina, Florianopolis 88040-900 SC-Brazil
| | - Bernardo Almeida Iglesias
- Departamento de QuímicaLaboratório de Bioinorgânica e Materiais PorfirínicosUniversidade Federal de Santa Maria Santa Maria 97105-900 RS-Brazil
| | - Giancarlo V. Botteselle
- Centro de Engenharias e Ciências Exatas-CECEUniversidade Estadual do Oeste do Paraná, Toledo 85903-000 PR-Brazil
| | - Flávia Manarin.
- Centro de Engenharias e Ciências Exatas-CECEUniversidade Estadual do Oeste do Paraná, Toledo 85903-000 PR-Brazil
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169
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Affiliation(s)
- Xianqiang Kong
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 People's Republic of China
| | - Long Lin
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 People's Republic of China
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; 2999 North Renmin Lu Shanghai 201620 People's Republic of China
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170
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Yan J, Sun R, Shi K, Li K, Yang L, Zhong G. N-Heterocyclic Carbene-Catalyzed Asymmetric Benzoin Reaction in Water. J Org Chem 2018; 83:7547-7552. [DOI: 10.1021/acs.joc.8b00481] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Yan
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Rong Sun
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kuangxi Shi
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kai Li
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Limin Yang
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Guofu Zhong
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
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171
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Briand GG, Decken A, Shannon WE, Trevors EE. Synthesis, structural characterization, and reactivity of (thiolato)bismuth complexes as potential water-tolerant Lewis acid catalysts. CAN J CHEM 2018. [DOI: 10.1139/cjc-2017-0640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
We have synthesized bismuth complexes incorporating polydentate mono- and di-thiolate ligands and examined their utility as water-tolerant Lewis acid catalysts. The reaction of Bi(OAc)3 or Bi(NO3)3·5H2O and the corresponding mono- or di-thiol(ate) yielded the compounds [(SNNS)Bi(OAc)] (4), [(SNNSPr)Bi(OAc)] (5), [(NNS2)Bi(OAc)] (6), [(ONS2)Bi(OAc)] (7), [(ONS2)Bi(NO3)] (8), and [(NNS)2Bi][NO3] (9) [H2(SNNS) = N,N′-dimethyl-N,N′-bis(2-mercaptoethyl)ethylenediamine; H2(SNNSPr) = N,N′-diethyl-N,N′-bis(2-mercaptoethyl)propanediamine; H2(NNS2) = N,N-diethyl-N′,N′-bis(2-mercaptoethyl)ethanediamine; H2(ONS2) = 2-methoxyethyl-bis(2-mercaptoethyl)amine; H(NNS) = N,N-diethyl-N′-(2-mercaptoethyl)ethanediamine]. The solid-state structures of 4–8 show similar distorted pentagonal pyramidal geometries at the bismuth centre with a thiolate sulfur atom in the axial site, whereas 8 shows second structural arrangement with a distorted trigonal bipyramidal geometry at bismuth. The cation of 9 shows two NNS-bonded ligands and a distorted octahedral geometry at bismuth. Two-dimensional NMR studies of 4–8 show geminal 1H coupling in –SCH2CH2N– groups and suggests strong dative Bi–N intramolecular interactions. Bi(NO3)3·5H2O and BiCl3 show high activity toward the esterification of stearic acid, Bi(NO3)3·5H2O, and 4–7 and 9 show high activity toward the transesterification of methyl stearate in butanol, and 7 shows moderate activity as a catalyst for the transesterification of glyceryl trioctanoate in methanol.
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Affiliation(s)
- Glen G. Briand
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Andreas Decken
- Department of Chemistry, University of New Brunswick, Fredericton, NB E3B 6E2, Canada
| | - Whitney E.M.M. Shannon
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Eric E. Trevors
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
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172
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Jagadale MB, Salunkhe RS, Rajmane MM, Dhanavade MJ, Sonawane KD, Rashinkar GS. Water-Mediated Synthesis of Anthelmintic Piperidinols and Their Molecular Docking Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201800375] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Megha B. Jagadale
- Department of Chemistry; Shivaji University; Kolhapur, 416004, M.S. India
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173
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Yun J, Zhi M, Shi W, Chu X, Shen Z, Loh T. Indium(III)‐Catalyzed Hydration and Hydroalkoxylation of α,β‐Unsaturated Ketones in Aqueous Media. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800301] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jin‐Jin Yun
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Man‐Ling Zhi
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Wen‐Xiao Shi
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Xue‐Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Zhi‐Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
| | - Teck‐Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced MaterialsNanjing Tech University Nanjing 211816 People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
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174
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Self-assembly of L-proline functional thermoresponsive double hydrophlic block copolymers for aldol reaction in water: the influence of POEGA block content. Colloid Polym Sci 2018. [DOI: 10.1007/s00396-018-4327-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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175
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Fukushima H, Ikegami D, Kuroda C, Kobayashi K. Synthesis of α-Methylene-γ-lactone Structure by Cyclization of ω-Formylallylsilane in Water. Chem Pharm Bull (Tokyo) 2018; 66:568-574. [DOI: 10.1248/cpb.c18-00077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | | | | | - Kenichi Kobayashi
- Graduate School of Pharmaceutical Sciences, Meiji Pharmaceutical University
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176
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Sedighipoor M, Kianfar AH, Mohammadnezhad G, Görls H, Plass W. Unsymmetrical palladium(II) N,N,O,O-Schiff base complexes: Efficient catalysts for Suzuki coupling reactions. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.02.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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177
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Calvo-Flores FG, Monteagudo-Arrebola MJ, Dobado JA, Isac-García J. Green and Bio-Based Solvents. Top Curr Chem (Cham) 2018; 376:18. [DOI: 10.1007/s41061-018-0191-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 03/06/2018] [Indexed: 01/13/2023]
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178
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179
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Brahmachari G, Begam S, Nurjamal K. Sulfamic Acid‐Catalyzed One‐Pot Synthesis of a New Series of Biologically Relevant Indole‐Uracil Molecular Hybrids in Water at Room Temperature. ChemistrySelect 2018. [DOI: 10.1002/slct.201800488] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Sanchari Begam
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
| | - Khondekar Nurjamal
- Laboratory of Natural Products & Organic Synthesis, Department of ChemistryVisva-Bharati (A Central University) Santiniketan- 731 235, West Bengal India
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180
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Wadhwa P, Kharbanda A, Bagchi S, Sharma A. Water-Mediated One-Pot Three-Component Reaction to Bifunctionalized Thiadiazoloquinazolinone-coumarin Hybrids: A Green Approach. ChemistrySelect 2018. [DOI: 10.1002/slct.201702908] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Preeti Wadhwa
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee- 247667 India
| | - Anupreet Kharbanda
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee- 247667 India
| | - Sourav Bagchi
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee- 247667 India
| | - Anuj Sharma
- Department of Chemistry; Indian Institute of Technology Roorkee; Roorkee- 247667 India
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181
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Synthesis and characterization of mesoporous Pd(II) organometal nanoplatelet catalyst for copper-free Sonogashira reaction in water. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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182
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Matloubi Moghaddam F, Moafi A. A facile and convenient synthesis of 3-alkylidene-oxindoles bearing tetrahydropyrazine scaffold under catalyst-free conditions. HETEROATOM CHEMISTRY 2018. [DOI: 10.1002/hc.21416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Firouz Matloubi Moghaddam
- Laboratory of Organic Synthesis and Natural Products; Department of Chemistry; Sharif University of Technology; Tehran Iran
| | - Atiyeh Moafi
- Laboratory of Organic Synthesis and Natural Products; Department of Chemistry; Sharif University of Technology; Tehran Iran
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183
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Sharma N, Sharma P, Bhagat S. Eco-friendly reactions in PEG-400: a highly efficient and green approach for stereoselective access to multisubstituted 3,4-dihydro-2(1 H)-quinazolines using 2-aminobenzylamines. RSC Adv 2018; 8:8721-8731. [PMID: 35539879 PMCID: PMC9078610 DOI: 10.1039/c7ra13487h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/20/2018] [Indexed: 12/05/2022] Open
Abstract
An efficient and stereoselective synthesis of novel 3,4-dihydro-2(1H)-quinazolines has been developed through cyclization reactions of 2-aminobenzylamines with α-oxoketene dithioacetals using PEG-400 as an inexpensive, easy to handle, non-toxic and recyclable reaction medium. The developed protocol is operationally simple and tolerates various substrates having different functionalities. This protocol features several attributes such as excellent yields, no work up, green reaction conditions, and being environmentally benign. The attractive feature of this new strategy is that all the reported final compounds have been isolated as single (E)-stereoisomeric forms, which was confirmed by 1HNMR and X-ray crystallographic studies.
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Affiliation(s)
- Nutan Sharma
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
| | - Pankaj Sharma
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
| | - Sunita Bhagat
- Organic Synthesis Research Laboratory, Department of Chemistry, A. R. S. D. College, University of Delhi New Delhi-110021 India
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184
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Wang X, Meng F, Zhang J, Xie J, Dai B. 2,6-Bis(2-methylhydrazine-1-carbonyl)pyridine 1-oxide as an Efficient Ligand for Copper-Catalyzed C–N Coupling Reaction in Water. Catal Letters 2018. [DOI: 10.1007/s10562-018-2321-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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185
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186
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Soares BM, Aguilar AM, Silva ER, Coutinho-Neto MD, Hamley IW, Reza M, Ruokolainen J, Alves WA. Chiral organocatalysts based on lipopeptide micelles for aldol reactions in water. Phys Chem Chem Phys 2018; 19:1181-1189. [PMID: 27942644 DOI: 10.1039/c6cp08135e] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A comprehensive study of the self-assembly in water of a lipopeptide consisting of a sequence of l-proline, l-arginine and l-tryptophan with a hydrocarbon chain has been performed. Fluorescence assays were used to determine the critical aggregation concentration. In situ small-angle X-ray scattering (SAXS) and molecular dynamics simulations showed the presence of spherical micelles with diameters around 6 nm. In agreement with these results, cryo-TEM images showed globular aggregates with diameters ranging from ≈4 nm up to ≈9 nm. Furthermore, the lipopeptide catalytic activity has been tested for the direct aldol reaction between cyclohexanone and p-nitrobenzaldehyde, and we have observed that the self-association of the organocatalyst played a critical role in the enhanced activity. Water affects the selectivity, and poor results are obtained under neat reaction conditions. The location of the catalytic groups at the lipopetide/water solvent interface also endowed unusual selectivity in the catalyzed aldol reactions. Under optimized reaction conditions, high yields (up to >99%), good enantioselectivity (ee up to 85%) and high diastereoselectivity (ds up to 92 : 8) were obtained.
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Affiliation(s)
- B M Soares
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - A M Aguilar
- Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972270, Brazil
| | - E R Silva
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo 04023-062, Brazil
| | - M D Coutinho-Neto
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
| | - I W Hamley
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - M Reza
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - J Ruokolainen
- Department of Applied Physics, Aalto University School of Science, P. O. Box 15100, FI-00076, Finland
| | - W A Alves
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil.
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187
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Jeong Y, Tonga GY, Duncan B, Yan B, Das R, Sahub C, Rotello VM. Solubilization of Hydrophobic Catalysts Using Nanoparticle Hosts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:10.1002/smll.201702198. [PMID: 29271047 PMCID: PMC5848072 DOI: 10.1002/smll.201702198] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/23/2017] [Indexed: 05/17/2023]
Abstract
A modular strategy for the solubilization and protection of hydrophobic transition metal catalysts using the hydrophobic pockets of water soluble gold nanoparticles is reported. Besides preserving original catalyst activity, this encapsulation strategy provides a protective environment for the hydrophobic catalyst and brings reusability. This system provides a versatile platform for the encapsulation of different hydrophobic transition metal catalysts, allowing a wide range of catalysis in water while uniting the advantages of homogeneous and heterogeneous catalysis in the same system.
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Affiliation(s)
- Youngdo Jeong
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Gulen Yesilbag Tonga
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Bradley Duncan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Bo Yan
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Riddha Das
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
| | - Chonticha Sahub
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA. Supramolecular Chemistry Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts Amherst, 710 North Pleasant Street, Amherst, MA 01003, USA
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188
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Jida M, Ballet S. An Efficient One-Pot Synthesis of Chiral N-Protected 3-Substituted (Diketo)piperazines via Ugi-4CR/De-Boc/Cyclization Process. ChemistrySelect 2018. [DOI: 10.1002/slct.201702943] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mouhamad Jida
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Chemistry and Bioengineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 B-1050 Brussels Belgium
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189
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Reddy GT, Kumar G, Reddy NCG. Water-Mediated One-pot Three-Component Synthesis of Hydrazinyl-Thiazoles Catalyzed by Copper Oxide Nanoparticles Dispersed on Titanium Dioxide Support: A Green Catalytic Process. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701063] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- G. Trivikram Reddy
- Department of Chemistry; School of Physical Sciences; Yogi Vemana University; Kadapa- 516 003 Andhra Pradesh India
| | - G. Kumar
- Department of Chemistry; School of Physical Sciences; Yogi Vemana University; Kadapa- 516 003 Andhra Pradesh India
| | - N. C. Gangi Reddy
- Department of Chemistry; School of Physical Sciences; Yogi Vemana University; Kadapa- 516 003 Andhra Pradesh India
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190
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Pashaei M, Mehdipour E. Silver nanoparticles supported on ionic-tagged magnetic hydroxyapatite as a highly efficient and reusable nanocatalyst for hydrogenation of nitroarenes in water. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mokhtar Pashaei
- Department of Chemistry, Faculty of Science; Lorestan University; Khoramabad Iran
| | - Ebrahim Mehdipour
- Department of Chemistry, Faculty of Science; Lorestan University; Khoramabad Iran
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191
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Mondal A, Naskar B, Goswami S, Prodhan C, Chaudhuri K, Mukhopadhyay C. I 2 catalyzed access of spiro[indoline-3,4'-pyridine] appended amine dyad: new ON-OFF chemosensors for Cu 2+ and imaging in living cells. Org Biomol Chem 2018; 16:302-315. [PMID: 29243763 DOI: 10.1039/c7ob02651j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An easy access to an amine-appended spiro[indoline-3,4'-pyridine] ON-OFF chemosensor by a one-pot four-component reaction using commercially available and an environmentally benign catalytic amount of molecular I2 (10 mol%) in aqueous ethanol at ambient temperature is described. The generated system could be utilized for the selective detection of Cu2+ as it demonstrated a colorimetric naked eye change along with an ON-OFF fluorescence response towards Cu2+ at physiological pH. The sensors exhibited high selectivity for Cu2+ over other common cations with detection limit in the range of 10-7 (M). Notably, this is the first report of a spiro[indoline-3,4'-pyridine] moiety acting as a sensor for Cu2+via a on-off fluorescence response. In addition, the probe system was successfully applied for imaging Cu2+ in human hepatocellular liver carcinoma cells (HepG2), demonstrating a new avenue for molecular imaging and biomedical applications.
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Affiliation(s)
- Animesh Mondal
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
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192
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Sharma M, Saikia G, Ahmed K, Gogoi SR, Puranik VG, Islam NS. Vanadium-based polyoxometalate complex as a new and efficient catalyst for phenol hydroxylation under mild conditions. NEW J CHEM 2018. [DOI: 10.1039/c7nj04433j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polyoxovanadate complex, synthesized under mild conditions, served as the catalyst for clean conversion of phenol to catechol and hydroquinone in water.
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Affiliation(s)
- Mitu Sharma
- Department of Chemical Sciences, Tezpur University
- Tezpur 784 028
- India
| | - Gangutri Saikia
- Department of Chemical Sciences, Tezpur University
- Tezpur 784 028
- India
| | - Kabirun Ahmed
- Department of Chemical Sciences, Tezpur University
- Tezpur 784 028
- India
| | | | - Vedavati G. Puranik
- Center for Material Characterisation, National Chemical Laboratory
- Pune 411008
- India
| | - Nashreen S. Islam
- Department of Chemical Sciences, Tezpur University
- Tezpur 784 028
- India
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193
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Huang Y, Liu Z, Gao G, Xiao Q, Martens W, Du A, Sarina S, Guo C, Zhu H. Visible light-driven selective hydrogenation of unsaturated aromatics in an aqueous solution by direct photocatalysis of Au nanoparticles. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02291c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Selective hydrogenation of various chemical bonds, such as CC, CC, CO, NO, and CN, is efficiently driven by visible light over a supported gold nanoparticle (AuNP) photocatalyst under mild reaction conditions.
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Affiliation(s)
- Yiming Huang
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Zhe Liu
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Guoping Gao
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Qi Xiao
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Wayde Martens
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Aijun Du
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Sarina Sarina
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
| | - Cheng Guo
- College of Science
- Nanjing University of Technology
- Nanjing
- China
| | - Huaiyong Zhu
- School of Chemistry, Physics and Mechanical
- Faculty of Science and Technology
- Queensland University of Technology
- Brisbane
- Australia
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194
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Bayón Castañón E, Kaposi M, Reich RM, Kühn FE. Water-soluble transition metal complexes of ruthenium(ii), osmium(ii), rhodium(iii) and iridium(iii) with chelating N-heterocyclic carbene ligands in hydrogenation and transfer hydrogenation catalysis. Dalton Trans 2018; 47:2318-2329. [DOI: 10.1039/c7dt04684g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The synthesis of novel Ru(ii), Os(ii), Rh(iii) and Ir(iii) mono-N-heterocyclic carbene (NHC) complexes and their application in hydrogenation catalysis is reported.
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Affiliation(s)
- Esther Bayón Castañón
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- Professorship of Molecular Catalysis
- 85747 Garching bei München
- Germany
| | - Marlene Kaposi
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- Professorship of Molecular Catalysis
- 85747 Garching bei München
- Germany
| | - Robert M. Reich
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- Professorship of Molecular Catalysis
- 85747 Garching bei München
- Germany
| | - Fritz E. Kühn
- Catalysis Research Center and Department of Chemistry
- Technische Universität München
- Professorship of Molecular Catalysis
- 85747 Garching bei München
- Germany
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195
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Singh G, Singh A, Satija P, Chowdhary K. The first report of the synthesis of organo-functionalized triethoxysilanes via a Knoevenagel condensation approach. NEW J CHEM 2018. [DOI: 10.1039/c8nj02168f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work involves the design of a new synthetic pathway for the preparation of organo-functionalized triethoxysilanes (OTES) via Knoevenagel condensation.
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Affiliation(s)
- Gurjaspreet Singh
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh
- India
| | - Akshpreet Singh
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh
- India
| | - Pinky Satija
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh
- India
| | - Kavita Chowdhary
- Department of Chemistry and Centre of Advanced Studies
- Panjab University
- Chandigarh
- India
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196
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Banothu R, Peraka S, Kodumuri S, Chevella D, Gajula KS, Amrutham V, Yennamaneni DR, Nama N. An aqueous medium-controlled stereospecific oxidative iodination of alkynes: efficient access to (E)-diiodoalkene derivatives. NEW J CHEM 2018. [DOI: 10.1039/c8nj03929a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and versatile approach for the stereospecific iodination of alkynes has been developed in aqueous media. Scale-up reactions (up to 5 g) established the proficiency of this protocol and highlight the feasibility of large scale reactions.
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Affiliation(s)
- Rammurthy Banothu
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Swamy Peraka
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Srujana Kodumuri
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Durgaiah Chevella
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Krishna Sai Gajula
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Vasu Amrutham
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Divya Rohini Yennamaneni
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
| | - Narender Nama
- Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- C&FC Division, CSIR-Indian Institute of Chemical Technology
- Hyderabad
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197
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Li G, Bao G, Zhu G, Li Y, Huang L, Sun W, Hong L, Wang R. Regio- and stereospecific Friedel–Crafts alkylation of indoles with spiro-epoxyoxindoles. Org Biomol Chem 2018; 16:3655-3661. [DOI: 10.1039/c8ob00861b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient strategy for the regio- and stereospecific Friedel–Crafts alkylation of indoles with spiro-epoxyoxindoles has been developed in the mixed solvents of HFIP/H2O (1 : 9) without the use of catalysts.
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Affiliation(s)
- Guofeng Li
- School of Life Sciences
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
| | - Guangjun Bao
- School of Life Sciences
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
| | - Gongming Zhu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Yiping Li
- School of Life Sciences
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
| | - Liwu Huang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Wangsheng Sun
- School of Life Sciences
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
| | - Liang Hong
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou
- P. R. China
| | - Rui Wang
- School of Life Sciences
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province
- School of Basic Medical Sciences
- Lanzhou University
- Lanzhou
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198
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Arafa WAA. Sustainable Catalytic Process with a High Eco-scale Score for the Synthesis of Novel Series of Bischalcones through Claisen-Schmidt Condensation. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.3063] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Wael A. A. Arafa
- Chemistry Department, College of Science; Aljouf University; P.O. Box 72341 Sakaka Aljouf Kingdom of Saudi Arabia
- Chemistry Department, Faculty of Science; Fayoum University; P.O. Box 63514 Fayoum City Egypt
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199
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Sadhukhan S, Baire B. Lewis Basicity of Water for a Selective Monodehalogenation of α,α-Dihalo Ketones to α-Halo Ketones and Mechanistic Study. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701233] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 India
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200
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Water-acetic acid mediated an efficient and eco-friendly protocol for the one-pot synthesis of bis-isoxazolyl amino dihydro-1 H -indol-4(5 H )-ones under mild reaction conditions. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.11.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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