1
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Wang Q, Wu S, Zou J, Liang X, Mou C, Zheng P, Chi YR. NHC-catalyzed enantioselective access to β-cyano carboxylic esters via in situ substrate alternation and release. Nat Commun 2023; 14:4878. [PMID: 37573355 PMCID: PMC10423276 DOI: 10.1038/s41467-023-40645-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/04/2023] [Indexed: 08/14/2023] Open
Abstract
A carbene-catalyzed asymmetric access to chiral β-cyano carboxylic esters is disclosed. The reaction proceeds between β,β-disubstituted enals and aromatic thiols involving enantioselective protonation of enal β-carbon. Two main factors contribute to the success of this reaction. One involves in situ ultrafast addition of the aromatic thiol substrates to the carbon-carbon double bond of the enal substrate. This reaction converts almost all enal substrate to a Thiol-click Intermediate, significantly reducing aromatic thiol substrates concentration and suppressing the homo-coupling reaction of enals. Another factor is an in situ release of enal substrate from the Thiol-click Intermediate for the desired reaction to proceed effectively. The optically enriched β-cyano carboxylic esters from our method can be readily transformed to medicines that include γ-aminobutyric acids derivatives such as Rolipram. In addition to synthetic utilities, our control of reaction outcomes via in situ substrate modulation and release can likely inspire future reaction development.
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Affiliation(s)
- Qingyun Wang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Shuquan Wu
- Center for Industrial Catalysis and Cleaning Process Development, School of Chemical Engineering, Guizhou Minzu University, Guiyang, 550025, China
| | - Juan Zou
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Xuyang Liang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China
| | - Chengli Mou
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang, 550025, China
| | - Pengcheng Zheng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
| | - Yonggui Robin Chi
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang, 550025, China.
- School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore.
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2
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Rozsar D, Farley AJM, McLauchlan I, Shennan BDA, Yamazaki K, Dixon DJ. Bifunctional Iminophosphorane-Catalyzed Enantioselective Nitroalkane Addition to Unactivated α,β-Unsaturated Esters. Angew Chem Int Ed Engl 2023; 62:e202303391. [PMID: 36929179 PMCID: PMC10946890 DOI: 10.1002/anie.202303391] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/18/2023]
Abstract
Herein we describe the enantioselective intermolecular conjugate addition of nitroalkanes to unactivated α,β-unsaturated esters, catalyzed by a bifunctional iminophosphorane (BIMP) superbase. The transformation provides the most direct access to pharmaceutically relevant enantioenriched γ-nitroesters, utilizing feedstock chemicals, with unprecedented selectivity. The methodology exhibits a broad substrate scope, including β-(fluoro)alkyl, aryl and heteroaryl substituted electrophiles, and was successfully applied on a gram scale with reduced catalyst loading, and, additionally, catalyst recovery was carried out. The formal synthesis of a range of drug molecules, and an enantioselective synthesis of (S)-rolipram were achieved. Additionally, computational studies revealed key reaction intermediates and transition state structures, and provided rationale for high enantioselectivities, in good agreement with experimental results.
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Affiliation(s)
- Daniel Rozsar
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOX1 3TAOxfordUK
| | - Alistair J. M. Farley
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOX1 3TAOxfordUK
| | - Iain McLauchlan
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOX1 3TAOxfordUK
| | | | - Ken Yamazaki
- Division of Applied ChemistryOkayama University700-8530TsushimanakaOkayamaJapan
| | - Darren J. Dixon
- Department of ChemistryUniversity of OxfordChemistry Research LaboratoryOX1 3TAOxfordUK
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3
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Afanasyev OI, Kliuev FS, Tsygankov AA, Nelyubina YV, Gutsul E, Novikov VV, Chusov D. Fluoride Additive as a Simple Tool to Qualitatively Improve Performance of Nickel-Catalyzed Asymmetric Michael Addition of Malonates to Nitroolefins. J Org Chem 2022; 87:12182-12195. [PMID: 36069733 DOI: 10.1021/acs.joc.2c01339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nowadays, design of the new chiral ligands for organometallic catalysts is often based on the step-by-step increase in their complexity to improve efficiency. Herein we describe that simple in situ addition of the fluoride source to the asymmetric organometallic catalyst can improve not only activity but also enantioselectivity. Bromide-nickel diimine complexes were found to catalyze asymmetric Michael addition in low yields and ee, but activation with fluoride leads to a significant improvement in catalyst performance. The developed approach was applied to prepare several enantioenriched GABA analogues.
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Affiliation(s)
- Oleg I Afanasyev
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Fedor S Kliuev
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russian Federation
| | - Alexey A Tsygankov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,Bauman Moscow State Technical University, Baumanskaya Str., 5, 105005 Moscow, Russia
| | - Evgenii Gutsul
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation
| | - Valentin V Novikov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russian Federation
| | - Denis Chusov
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, Vavilova St. 28, Moscow 119991, Russian Federation.,National Research University Higher School of Economics, Miasnitskaya Str. 20, Moscow 101000, Russian Federation
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4
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Leyva–Pérez A, Bilanin C, Bacic M, Greco R. Acid and base water coexists in a micro–structured ionic liquid and catalyzes organic reactions in one–pot. ChemCatChem 2022. [DOI: 10.1002/cctc.202200557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Antonio Leyva–Pérez
- CSIC Instituto de Tecnologia Quimica Avda. de los Naranjos S/N 46022 Valencia SPAIN
| | - Cristina Bilanin
- Instituto de Tecnologia Quimica Instituto de Tecnologia Quimica SPAIN
| | - Matea Bacic
- Instituto de Tecnologia Quimica Instituto de Tecnologia Quimica SPAIN
| | - Rossella Greco
- Instituto de Tecnologia Quimica Instituto de Tecnologia Quimica SPAIN
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5
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Han J, Escorihuela J, Fustero S, Landa A, Soloshonok VA, Sorochinsky A. Asymmetric Michael Addition in Synthesis of β-Substituted GABA Derivatives. Molecules 2022; 27:molecules27123797. [PMID: 35744921 PMCID: PMC9231165 DOI: 10.3390/molecules27123797] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 11/29/2022] Open
Abstract
γ-Aminobutyric acid (GABA) represents one of the most prolific structural units widely used in the design of modern pharmaceuticals. For example, β-substituted GABA derivatives are found in numerous neurological drugs, such as baclofen, phenibut, tolibut, pregabalin, phenylpiracetam, brivaracetam, and rolipram, to mention just a few. In this review, we critically discuss the literature data reported on the preparation of substituted GABA derivatives using the Michael addition reaction as a key synthetic transformation. Special attention is paid to asymmetric methods featuring synthetically useful stereochemical outcomes and operational simplicity.
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Affiliation(s)
- Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
| | - Jorge Escorihuela
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain;
| | - Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, 46100 Burjassot, Spain;
- Correspondence: (S.F.); (A.S.)
| | - Aitor Landa
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain; (A.L.); (V.A.S.)
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain; (A.L.); (V.A.S.)
- IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
| | - Alexander Sorochinsky
- V.P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry, The National Academy of Sciences of Ukraine, 1 Murmanska Str., 02094 Kyiv, Ukraine
- Correspondence: (S.F.); (A.S.)
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6
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7
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Nagy BS, Llanes P, Pericas MA, Kappe CO, Ötvös SB. Enantioselective Flow Synthesis of Rolipram Enabled by a Telescoped Asymmetric Conjugate Addition-Oxidative Aldehyde Esterification Sequence Using in Situ-Generated Persulfuric Acid as Oxidant. Org Lett 2022; 24:1066-1071. [PMID: 35050638 PMCID: PMC8822492 DOI: 10.1021/acs.orglett.1c04300] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel approach is reported for the enantioselective flow synthesis of rolipram comprising a telescoped asymmetric conjugate addition-oxidative aldehyde esterification sequence followed by trichlorosilane-mediated nitro group reduction and concomitant lactamization. The telescoped process takes advantage of a polystyrene-supported chiral organocatalyst along with in situ-generated persulfuric acid as a robust and scalable oxidant for direct aldehyde esterification. This approach demonstrates significantly improved productivity compared with earlier methodologies while ensuring environmentally benign metal-free conditions.
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Affiliation(s)
- Bence S Nagy
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
| | - Patricia Llanes
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain
| | - Miquel A Pericas
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain.,Departament de Química Inorgànica i Orgànica, Universitat de Barcelona (UB), E-08028 Barcelona, Spain
| | - C Oliver Kappe
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria.,Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
| | - Sándor B Ötvös
- Institute of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria.,Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
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8
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Han B, He XH, Liu YQ, He G, Peng C, Li JL. Asymmetric organocatalysis: an enabling technology for medicinal chemistry. Chem Soc Rev 2021; 50:1522-1586. [PMID: 33496291 DOI: 10.1039/d0cs00196a] [Citation(s) in RCA: 150] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The efficacy and synthetic versatility of asymmetric organocatalysis have contributed enormously to the field of organic synthesis since the early 2000s. As asymmetric organocatalytic methods mature, they have extended beyond the academia and undergone scale-up for the production of chiral drugs, natural products, and enantiomerically enriched bioactive molecules. This review provides a comprehensive overview of the applications of asymmetric organocatalysis in medicinal chemistry. A general picture of asymmetric organocatalytic strategies in medicinal chemistry is firstly presented, and the specific applications of these strategies in pharmaceutical synthesis are systematically described, with a focus on the preparation of antiviral, anticancer, neuroprotective, cardiovascular, antibacterial, and antiparasitic agents, as well as several miscellaneous bioactive agents. The review concludes with a discussion of the challenges, limitations and future prospects for organocatalytic asymmetric synthesis of medicinally valuable compounds.
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Affiliation(s)
- Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Xiang-Hong He
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yan-Qing Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Gu He
- State Key Laboratory of Biotherapy and Cancer Centre, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Jun-Long Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China. and Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, China.
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9
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Garnes-Portolés F, Rivero-Crespo MÁ, Leyva-Pérez A. Nanoceria as a recyclable catalyst/support for the cyanosilylation of ketones and alcohol oxidation in cascade. J Catal 2020. [DOI: 10.1016/j.jcat.2020.09.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Ötvös SB, Llanes P, Pericàs MA, Kappe CO. Telescoped Continuous Flow Synthesis of Optically Active γ-Nitrobutyric Acids as Key Intermediates of Baclofen, Phenibut, and Fluorophenibut. Org Lett 2020; 22:8122-8126. [PMID: 33026815 PMCID: PMC7573919 DOI: 10.1021/acs.orglett.0c03100] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Indexed: 02/07/2023]
Abstract
The two-step flow asymmetric synthesis of chiral γ-nitrobutyric acids as key intermediates of the GABA analogues baclofen, phenibut, and fluorophenibut is reported on a multigram scale. The telescoped process comprises an enantioselective Michael-type addition facilitated by a polystyrene-supported heterogeneous organocatalyst under neat conditions followed by in situ-generated performic acid-mediated aldehyde oxidation. Simple access to valuable optically active substances is provided with key advances in terms of productivity and sustainability compared to those of previous batch approaches.
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Affiliation(s)
- Sándor B. Ötvös
- Institute
of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
- Center
for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
| | - Patricia Llanes
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, E-43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona (UB), E-08028 Barcelona, Spain
| | - C. Oliver Kappe
- Institute
of Chemistry, University of Graz, NAWI Graz, Heinrichstrasse 28, A-8010 Graz, Austria
- Center
for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), Inffeldgasse 13, A-8010 Graz, Austria
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11
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Abstract
Baclofen, β-(4-chlorophenyl)-γ-aminobutyric acid, holds a unique position in neuroscience, remaining the only U.S. Food and Drug Administration (FDA) approved GABAB agonist. While intended to be a more brain penetrant, i.e, ability to cross the blood-brain barrier (BBB), version of GABA (γ-aminobutyric acid) for the potential treatment of epilepsy, baclofen's highly efficacious muscle relaxant properties led to its approval, as a racemate, for the treatment of spasticity. Interestingly, baclofen received FDA approval before its receptor, GABAB, was discovered and its exact mechanism of action was known. In recent times, baclofen has a myriad of off-label uses, with the treatment for alcohol abuse and drug addiction garnering a great deal of attention. This Review aims to capture the >60 year legacy of baclofen by walking through the history, pharmacology, synthesis, drug metabolism, routes of administration, and societal impact of this Classic in chemical neuroscience.
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Affiliation(s)
- Caitlin N. Kent
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37232, United States
| | - Charlotte Park
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
| | - Craig W. Lindsley
- Warren Center for Neuroscience Drug Discovery, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
- Department of Pharmacology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37232, United States
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, United States
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12
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Yuan L, He L, Wang Y, Lang X, Yang F, Zhao Y, Zhao H. Two- and Three-Component Post-Polymerization Modifications Based on Meldrum’s Acid. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00482] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ling Yuan
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lirong He
- Institut für Technische und Makromolekulare Chemie, Universität Hamburg, Bundesstraße 45, Hamburg 20146, Germany
| | - Yixi Wang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xianhua Lang
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Feng Yang
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
| | - Yong Zhao
- Key Laboratory of Advanced Technology of Materials (Ministry of Education of China), School of Materials Science and Engineering, Superconductivity and New Energy R&D Center, Southwest Jiaotong University, Chengdu 610031, China
| | - Hui Zhao
- School of Chemical Engineering, Sichuan University, Chengdu 610065, China
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13
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Liu L, Concepción P, Corma A. Modulating the catalytic behavior of non-noble metal nanoparticles by inter-particle interaction for chemoselective hydrogenation of nitroarenes into corresponding azoxy or azo compounds. J Catal 2019. [DOI: 10.1016/j.jcat.2018.11.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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14
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Franconetti A, de Gonzalo G. Recent Developments on Supported Hydrogen-bond Organocatalysts. ChemCatChem 2018. [DOI: 10.1002/cctc.201801459] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Antonio Franconetti
- Departamento de Química; Universitat Autonoma de Barcelona; Cerdanyola del Vallés 01893 Spain
| | - Gonzalo de Gonzalo
- Departamento de Química Orgánica; Universidad de Sevilla; c/ Profesor García González 2 41012 Sevilla Spain
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15
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Prieto-Ramírez MC, Fernández I, da Silva I, González-Platas J, de Armas P, García-Tellado F. Stereodiversified Modular Synthesis of Non-planar Five-Membered Cyclic N
-Hydroxylamidines: Reactivity Study and Application to the Synthesis of Cyclic Amidines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800749] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mary Cruz Prieto-Ramírez
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
| | - Israel Fernández
- Departamento de Química Orgánica I y Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas, Universidad Complutense; 28040 Madrid Spain
| | - Ivan da Silva
- ISIS Facility; STFC Rutherford Appleton Laboratory; Chilton, Oxfordshire OX11 0QX UK
| | - Javier González-Platas
- Servicio de Difracción de Rayos X, Departamento de Física; Universidad de La Laguna; Astrofísico Francisco Sánchez 2 38204 La Laguna Spain
| | - Pedro de Armas
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
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16
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Recyclable C2-symmetric tertiary amine-squaramide organocatalysts: Design and application to asymmetric synthesis of γ-nitrocarbonyl compounds. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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17
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Tejeda-Serrano M, Mon M, Ross B, Gonell F, Ferrando-Soria J, Corma A, Leyva-Pérez A, Armentano D, Pardo E. Isolated Fe(III)–O Sites Catalyze the Hydrogenation of Acetylene in Ethylene Flows under Front-End Industrial Conditions. J Am Chem Soc 2018; 140:8827-8832. [DOI: 10.1021/jacs.8b04669] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- María Tejeda-Serrano
- Instituto de Tecnología Química (UPV−CSIC), Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Marta Mon
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - Bethany Ross
- Instituto de Tecnología Química (UPV−CSIC), Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Francisco Gonell
- Instituto de Tecnología Química (UPV−CSIC), Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Jesús Ferrando-Soria
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
| | - Avelino Corma
- Instituto de Tecnología Química (UPV−CSIC), Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química (UPV−CSIC), Universitat Politècnica de València−Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022 Valencia, Spain
| | - Donatella Armentano
- Dipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria, Rende 87036, Cosenza, Italy
| | - Emilio Pardo
- Instituto de Ciencia Molecular (ICMol), Universidad de Valencia, 46980 Paterna, Valencia, Spain
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18
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Li X, You C, Yang Y, Yang Y, Li P, Gu G, Chung LW, Lv H, Zhang X. Rhodium-catalyzed asymmetric hydrogenation of β-cyanocinnamic esters with the assistance of a single hydrogen bond in a precise position. Chem Sci 2018; 9:1919-1924. [PMID: 29675238 PMCID: PMC5890790 DOI: 10.1039/c7sc04639a] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 01/02/2018] [Indexed: 12/24/2022] Open
Abstract
The first asymmetric hydrogenation of β-cyanoacrylate esters has been developed to furnish chiral β-cyano esters with excellent yields and excellent enantioselectivities. Notably, the catalyst with a single H-bond donor in a precise position performed better than that with double H-bond donors.
With the assistance of hydrogen bonds, the first asymmetric hydrogenation of β-cyanocinnamic esters is developed, affording chiral β-cyano esters with excellent enantioselectivities (up to 99% ee). This novel methodology provides an efficient and concise synthetic route to chiral GABA-derivatives such as (S)-Pregabalin, (R)-Phenibut, (R)-Baclofen. Interestingly, in this system, the catalyst with a single H-bond donor performs better than that with double H-bond donors, which is a novel discovery in the metalorganocatalysis area.
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Affiliation(s)
- Xiuxiu Li
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Cai You
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Yusheng Yang
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Yuhong Yang
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
| | - Pan Li
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China .
| | - Guoxian Gu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
| | - Lung Wa Chung
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
| | - Hui Lv
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China . .,Engineering Research Center of Organosilicon Compounds & Materials , Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , 430072 , China
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education , College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , P. R. China . .,Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , P. R. China .
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19
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Díaz U, Corma A. Organic-Inorganic Hybrid Materials: Multi-Functional Solids for Multi-Step Reaction Processes. Chemistry 2018; 24:3944-3958. [PMID: 29194811 DOI: 10.1002/chem.201704185] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Indexed: 11/07/2022]
Abstract
The design of new hybrid materials with tailored properties at the nano-, meso-, and macro-scale, with the use of structural functional nanobuilding units, is carried out to obtain specific multi-functional materials. Organization into controlled 1D, 2D, and 3D architectures with selected functionalities is key for developing advanced catalysts, but this is hardly accomplished using conventional synthesis procedures. The use of pre-formed nanostructures, derived either from known materials or made with specific innovative synthetic methodologies, has enormous potential in the generation of multi-site catalytic materials for one-pot processes. The present concept article introduces a new archetype wherein self-assembled nanostructured builder units are the base for the design of multifunctional catalysts, which combine catalytic efficiency with fast reactant and product diffusion. The article addresses a new generation of versatile hybrid organic-inorganic multi-site catalytic materials for their use in the production of (chiral) high-added-value products within the scope of chemicals and fine chemicals production. The use of those multi-reactive solids for more nanotechnological applications, such as sensors, due to the inclusion of electron donor-acceptor structural arrays is also considered, together with the adsorption-desorption capacities due to the combination of hydrophobic and hydrophilic sub-domains. The innovative structured hybrid materials for multipurpose processes here considered, can allow the development of multi-stage one-pot reactions with industrial applications, using the materials as one nanoreactor systems, favoring more sustainable production pathways with economic, environmental and energetic advantages.
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Affiliation(s)
- Urbano Díaz
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior, de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, Valencia, Spain
| | - Avelino Corma
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior, de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, Valencia, Spain
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20
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Szőllősi G. Asymmetric one-pot reactions using heterogeneous chemical catalysis: recent steps towards sustainable processes. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01671a] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Asymmetric one-pot reactions applying heterogeneous chemical catalysts and unifying the benefits of these catalytic materials with the advantages of one-pot methods, are surveyed.
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Affiliation(s)
- György Szőllősi
- MTA-SZTE Stereochemistry Research Group
- University of Szeged
- H-6720 Szeged, Dóm tér 8
- Hungary
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21
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Tůma J, Kohout M. Silica gel-immobilized multidisciplinary materials applicable in stereoselective organocatalysis and HPLC separation. RSC Adv 2018; 8:1174-1181. [PMID: 35540900 PMCID: PMC9076945 DOI: 10.1039/c7ra12658a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 12/20/2017] [Indexed: 12/02/2022] Open
Abstract
In this pilot study, we present novel bifunctional silica gel-immobilized materials applicable as heterogeneous organocatalysts and stationary phases in HPLC. The materials provided high stereoselectivity in both batch and continuous flow catalysis of a model Michael addition (cyclohexanone to (E)-β-nitrostyrene). In the batch reaction, the catalysts proved their sustainable catalytic activity over five consecutive recycling experiments. Under continuous flow reaction conditions, the catalytic activity was found to be superior to the batch reaction, and moreover, the same immobilized materials were utilized as stationary phases in HPLC showing very good chemoselective separation of model acidic analytes. Novel multidisciplinary silica gel-based materials were successfully employed in highly stereoselective Michael addition and as stationary phases in HPLC separation.![]()
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Affiliation(s)
- J. Tůma
- Department of Organic Chemistry
- University of Chemistry and Technology Prague
- Czech Republic
| | - M. Kohout
- Department of Organic Chemistry
- University of Chemistry and Technology Prague
- Czech Republic
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22
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Ishitani H, Furiya Y, Kobayashi S. Continuous-flow synthesis using a column reactor packed with heterogeneous catalysts: A convenient production of nitroolefins by using amino-functionalized silicagel. Bioorg Med Chem 2017. [PMID: 28624241 DOI: 10.1016/j.bmc.2017.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A continuous-flow synthesis of β-nitroolefins by using heterogeneous base catalysts has been developed. Although the use of an excess amount of nitro-donor such as nitromethane is required in conventional methods, nearly equimolar amounts of nitro-donors and carbonyl compounds are sufficient for high-yielding production of nitroolefins. Catalysts for this flow protocol are inexpensive and abundant, and high durability and high productivity were also realized by using an appropriate second support.
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Affiliation(s)
- Haruro Ishitani
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuichi Furiya
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shū Kobayashi
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Chemistry, School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan.
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23
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Cirujano FG, López-Maya E, Rodríguez-Albelo M, Barea E, Navarro JAR, De Vos DE. Selective One-Pot Two-Step C−C Bond Formation using Metal-Organic Frameworks with Mild Basicity as Heterogeneous Catalysts. ChemCatChem 2017. [DOI: 10.1002/cctc.201700784] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Francisco G. Cirujano
- Centre for Surface Chemistry and Catalysis; Department of Microbial and Molecular Systems (M2S); KU Leuven; Celestijnenlaan 200F 3001 Leuven Belgium
| | - Elena López-Maya
- Departamento de Química Inorgánica; Universidad de Granada; Av. Fuentenueva S/N 18071 Granada Spain
| | - Marleny Rodríguez-Albelo
- Departamento de Química Inorgánica; Universidad de Granada; Av. Fuentenueva S/N 18071 Granada Spain
| | - Elisa Barea
- Departamento de Química Inorgánica; Universidad de Granada; Av. Fuentenueva S/N 18071 Granada Spain
| | - Jorge A. R. Navarro
- Departamento de Química Inorgánica; Universidad de Granada; Av. Fuentenueva S/N 18071 Granada Spain
| | - Dirk E. De Vos
- Centre for Surface Chemistry and Catalysis; Department of Microbial and Molecular Systems (M2S); KU Leuven; Celestijnenlaan 200F 3001 Leuven Belgium
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24
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Hatano M, Yamakawa K, Ishihara K. Enantioselective Conjugate Hydrocyanation of α,β-Unsaturated N-Acylpyrroles Catalyzed by Chiral Lithium(I) Phosphoryl Phenoxide. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02551] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya 464-8603, Japan
| | - Katsuya Yamakawa
- Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University, Furo-cho,
Chikusa, Nagoya 464-8603, Japan
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25
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Wang Y, Milkiewicz KL, Kaufman ML, He L, Landmesser NG, Levy DV, Allwein SP, Christie MA, Olsen MA, Neville CJ, Muthukumaran K. Plant Process for the Preparation of Cinchona Alkaloid-Based Thiourea Catalysts. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00049] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Kannan Muthukumaran
- Cambrex High Point, 4180 Mendenhall
Oaks Pkwy, High Point, North
Carolina 27265, United States
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26
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Cheng HG, Miguélez J, Miyamura H, Yoo WJ, Kobayashi S. Integration of aerobic oxidation and intramolecular asymmetric aza-Friedel-Crafts reactions with a chiral bifunctional heterogeneous catalyst. Chem Sci 2017; 8:1356-1359. [PMID: 28451276 PMCID: PMC5362052 DOI: 10.1039/c6sc03849b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Accepted: 10/05/2016] [Indexed: 11/21/2022] Open
Abstract
A new class of chiral bifunctional heterogeneous materials composed of Au/Pd nanoparticles and chiral phosphoric acids as active orthogonal catalysts was prepared by utilizing a facile pseudo-suspension co-polymerization method. It was found that this heterogeneous catalyst was capable of facilitating the sequential aerobic oxidation-asymmetric intramolecular aza-Friedel-Crafts reaction between benzyl alcohols and N-aminoethylpyrroles. Moreover, the designed chiral heterogeneous catalyst could be recovered and reused several times without significant loss of activity or enantioselectivity.
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Affiliation(s)
- Hong-Gang Cheng
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Javier Miguélez
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Hiroyuki Miyamura
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Woo-Jin Yoo
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
| | - Shū Kobayashi
- Department of Chemistry , School of Science , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-0033 , Japan .
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27
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Cabrero-Antonino JR, Tejeda-Serrano M, Quesada M, Vidal-Moya JA, Leyva-Pérez A, Corma A. Bimetallic nanosized solids with acid and redox properties for catalytic activation of C-C and C-H bonds. Chem Sci 2017; 8:689-696. [PMID: 28451218 PMCID: PMC5297923 DOI: 10.1039/c6sc03335k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 08/25/2016] [Indexed: 11/21/2022] Open
Abstract
A new approach is presented to form self-supported bimetallic nanosized solids with acid and redox catalytic properties. They are water-, air- and H2-stable, and are able to activate demanding C-C and C-H reactions. A detailed mechanistic study on the formation of the Ag-Fe bimetallic system shows that a rapid redox-coupled sequence between Ag+, O2 (air) and Fe2+ occurs, giving monodisperse Ag nanoparticles supported by O-bridged diatomic Fe3+ triflimides. The system can be expanded to Ag nanoparticles embedded within a matrix of Cu2+, Bi3+ and Yb3+ triflimide.
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Affiliation(s)
- Jose R Cabrero-Antonino
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
| | - María Tejeda-Serrano
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
| | - Manuel Quesada
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
| | - Jose A Vidal-Moya
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
| | - Avelino Corma
- Instituto de Tecnología Química , Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas , Avda. de los Naranjos s/n , 46022 , Valencia , Spain . ; ; ; Tel: +34 9638 77800
- King Fahd University of Petroleum and Minerals , P. O. Box 989 , Dhahran 31261 , Saudi Arabia
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28
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Ordóñez M, Cativiela C, Romero-Estudillo I. An update on the stereoselective synthesis of γ-amino acids. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.08.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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29
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Stereoselective reactions of nitro compounds in the synthesis of natural compound analogs and active pharmaceutical ingredients. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.067] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Palo-Nieto C, Afewerki S, Anderson M, Tai CW, Berglund P, Córdova A. Integrated Heterogeneous Metal/Enzymatic Multiple Relay Catalysis for Eco-Friendly and Asymmetric Synthesis. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01031] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Carlos Palo-Nieto
- Mid Sweden University, Department of Natural
Sciences, Holmgatan 10, 85170, Sundsvall, Sweden
| | - Samson Afewerki
- Mid Sweden University, Department of Natural
Sciences, Holmgatan 10, 85170, Sundsvall, Sweden
| | - Mattias Anderson
- KTH
Royal Institute of Technology, Division of Industrial Biotechnology,
School of Biotechnology, Alba Nova University Center, SE-106 91 Stockholm, Sweden
| | - Cheuk-Wai Tai
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, 10691 Stockholm, Sweden
| | - Per Berglund
- KTH
Royal Institute of Technology, Division of Industrial Biotechnology,
School of Biotechnology, Alba Nova University Center, SE-106 91 Stockholm, Sweden
| | - Armando Córdova
- Mid Sweden University, Department of Natural
Sciences, Holmgatan 10, 85170, Sundsvall, Sweden
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, 10691 Stockholm, Sweden
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31
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Jin H, Kim ST, Hwang GS, Ryu DH. L-Proline Derived Bifunctional Organocatalysts: Enantioselective Michael Addition of Dithiomalonates to trans-β-Nitroolefins. J Org Chem 2016; 81:3263-74. [PMID: 26989804 DOI: 10.1021/acs.joc.6b00218] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A series of novel L-proline derived tertiary amine bifunctional organocatalysts 9 are reported, which were applied to the asymmetric Michael addition of dithiomalonates 2 to trans-β-nitroolefins 1. The reaction proceeded in high yields (up to 99%) with high enantioselectivities (up to 97% ee). The synthetic utility of this methodology was demonstrated in the short synthesis of (R)-phenibut in high yield.
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Affiliation(s)
- Hui Jin
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
| | - Seung Tae Kim
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
| | - Geum-Sook Hwang
- Western Seoul Center, Korea Basic Science Institute , Seoul 120-140, Korea
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University , Suwon 440-746, Korea
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32
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Ishitani H, Saito Y, Tsubogo T, Kobayashi S. Synthesis of Nitro-Containing Compounds through Multistep Continuous Flow with Heterogeneous Catalysts. Org Lett 2016; 18:1346-9. [DOI: 10.1021/acs.orglett.6b00282] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Haruro Ishitani
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuki Saito
- Department
of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsu Tsubogo
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shu̅ Kobayashi
- Department
of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Green & Sustainable Chemistry Cooperation Laboratory, Graduate School of Science, The University of Tokyo, Hongo Bunkyo-ku, Tokyo 113-0033, Japan
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33
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Hayashi Y, Sakamoto D, Okamura D. One-Pot Synthesis of (S)-Baclofen via Aldol Condensation of Acetaldehyde with Diphenylprolinol Silyl Ether Mediated Asymmetric Michael Reaction as a Key Step. Org Lett 2015; 18:4-7. [DOI: 10.1021/acs.orglett.5b02839] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Daisuke Sakamoto
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Daichi Okamura
- Department of Chemistry,
Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza Aoba-ku, Sendai, Miyagi 980-8578, Japan
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34
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One-pot three-component reaction for efficient and facile synthesis of γ-nitrocarbonyl compounds under solvent-free conditions. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-4410-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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