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Wen G, Feng X, Lin L. Water-enabling strategies for asymmetric catalysis. Org Biomol Chem 2024; 22:2510-2522. [PMID: 38450421 DOI: 10.1039/d3ob02122j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
Water possesses unique advantages, including abundance, environmental friendliness and mild effects. Undoubtedly, it is an ideal solvent or reagent in chemical syntheses. Water also shows unique abilities in catalytic asymmetric synthesis. It can accelerate reaction rates, improve diastereo- or enantioselectivities, initiate reactions, diversify chemo, diastereo- or enantioselectivities through various effects (hydrophobic, hydrogen bonding, protonation). Several reviews have demonstrated the positive effects of water in asymmetric synthesis. In this review, we summarize water-enabling strategies in the last decade, and focus on advances which reveal how water affects a reaction.
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Affiliation(s)
- Gang Wen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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2
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Harden I, Neese F, Bistoni G. Dimerization of confined Brønsted acids in enantioselective organocatalytic reactions. Chem Sci 2023; 14:10580-10590. [PMID: 37799993 PMCID: PMC10548523 DOI: 10.1039/d3sc03769j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/08/2023] [Indexed: 10/07/2023] Open
Abstract
The formation of Brønsted acid aggregates in the course of asymmetric organocatalytic reactions is often overlooked in mechanistic studies, even though it might have a deep impact on the stereo-controlling factors of the transformations. In this work, we shed light on the influence of the catalyst structure and reaction conditions on the spontaneity of the aggregation process for popular chiral organocatalysts derived from phosphoric acids using high-level quantum mechanical calculations. Our study encompasses small and sterically unhindered chiral phosphoric acids as well as large and "confined" imidodiphosphates and imidodiphosphorimidates. These systems have recently proven particularly effective in promoting a large number of highly relevant asymmetric transformations. While cooperative catalytic effects of sterically less hindered chiral phosphoric acid catalysts are well appreciated in literature, it is found that the formation of catalyst dimers in solution is possible for both standard and confined catalysts. The spontaneity of the aggregation process depends on reaction conditions like solvent polarity, polarizability, temperature, the nature of the interaction with the substrate, as well as the catalyst architecture. Finally, it is shown that, at low temperatures (153 K), the aggregation process can profoundly influence the reaction kinetics and selectivity.
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Affiliation(s)
- Ingolf Harden
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm Platz 1 45470 Mülheim an der Ruhr Germany
| | - Frank Neese
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm Platz 1 45470 Mülheim an der Ruhr Germany
| | - Giovanni Bistoni
- Department of Chemistry, Biology and Biotechnology, University of Perugia Via Elce di Sotto, 8 06123 Perugia Italy
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Zhang H, Li Y, Zhuang J, Dai J, Xiu ZL, Quan C. One-pot synthesis of fuel precursor from acetoin fermentation broth using ionic liquid-based salting-out extraction system. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:94. [PMID: 37268988 DOI: 10.1186/s13068-023-02344-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 05/18/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND The development of biofuels, especially liquid hydrocarbon fuels, has been widely concerned due to the depletion of fossil resources. In order to obtain fuel precursors, the reaction of C-C bond formation is usually carried out with biomass derived ketones/aldehydes as reactants. Acetoin and 2,3-butanediol are two platform chemicals, which are co-existed in fermentation broth and traditionally separated by distillation, and then acetoin could be use as C4 building block to prepare hydrocarbon fuels. In order to mitigate the process complexity, direct aldol condensation reaction of acetoin in fermentation broth was studied in this work. RESULTS A one-pot process of product separation and acetoin derivative synthesis was proposed based on salting-out extraction (SOE). Aldol condensation reaction of acetoin and 5-methyl furfural in different SOE systems was compared, and the results showed that the synthesis of C10 fuel precursors and separation of C10 products and 2,3-butanediol from fermentation broth were achieved in one-pot with ethanolammonium butyrate (EOAB) and K2HPO4 as SOE reagents and catalysts. The SOE and reaction conditions such as the concentrations of EOAB and K2HPO4, reaction temperature and time were optimized. When the system was composed of 6 wt% EOAB-44 wt% K2HPO4 and the mixture was stirred for 6 h at 200 rpm, 40 ℃, the yield of C10 products was 80.7%, and 95.5% 2,3-butanediol was distributed to the top EOAB-rich phase. The exploration of reaction mechanism showed that an imine intermediate was rapidly formed and the subsequent C10 product formation was the key step for aldol condensation reaction. CONCLUSIONS With EOAB and K2HPO4 as SOE reagents and catalysts, one-pot synthesis of fuel precursor from acetoin fermentation broth was achieved without prior purification. A yield of 80.7% for C10 products was obtained which was accumulated at the interface of two aqueous-phase, and 95.5% 2,3-BD was distributed to the top EOAB-rich phase. This work provides a new integration process of product separation and derivative synthesis from fermentation broth based on ionic liquid SOE.
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Affiliation(s)
- Hanxiao Zhang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, People's Republic of China
| | - Yan Li
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, People's Republic of China
| | - Jing Zhuang
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, People's Republic of China
| | - Jianying Dai
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, People's Republic of China.
| | - Zhi-Long Xiu
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, People's Republic of China
| | - Chunshan Quan
- Key Laboratory of Biotechnology and Bioresources Utilization, Dalian Minzu University, Dalian, 116650, People's Republic of China
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Lee HJ, Maruoka K. Design of Bifunctional Amino Tf-Amide Organocatalysts and Application in Various Asymmetric Transformations. CHEM REC 2022; 22:e202200004. [PMID: 35179310 DOI: 10.1002/tcr.202200004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 11/08/2022]
Abstract
In this personal account, we describe our recent developments on the four types of amino Tf-amide catalysts in asymmetric transformations. Firstly, axially chiral biaryl-based secondary-amino Tf-amide catalyzed various stereoselective reactions via enamine intermediates. Secondly, pyrrolidine-based secondary-amino aliphatic Tf-amide catalyzed asymmetric direct Mannich reaction. Thirdly, chiral primary-amino aliphatic Tf-amide catalyzed asymmetric direct aldol reaction and conjugate addition. Finally, modified chiral amino aromatic Tf-amide catalyzed asymmetric transformations. These four different strategies are illustrated by using various organocatalyzed asymmetric transformations.
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Affiliation(s)
- Hyo-Jun Lee
- Department of Chemistry, Kunsan National University, Gunsan, 54150, Republic of Korea
| | - Keiji Maruoka
- Graduate School of Pharmaceutical Sciences, Kyoto University Sakyo, Kyoto, 606-8501, Japan.,School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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Huelgas G, Somanathan R, Hernández Pérez JM, Rojas Cabrera H, de la Higuera Macías M, Domínguez-Huerta A, Sabala R, Anaya de Parrodi C. Homochiral bifunctional L-prolinamide- and L-bis-prolinamide-catalyzed asymmetric aldol reactions performed in wet solvent-free conditions. Chirality 2020; 33:22-36. [PMID: 33232537 DOI: 10.1002/chir.23283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 09/25/2020] [Accepted: 10/05/2020] [Indexed: 01/20/2023]
Abstract
In this study, the novel bifunctional homochiral thiourea-L-prolinamides 1-4, tertiary amino-L-prolinamide 5, and bis-L-prolinamides 6 and 7 were prepared from enantiomerically pure (11R,12R)-11,12-diamino-9,10-dihydro-9,10-ethanoanthracene 8 and (11S,12S)-11,12-diamino-9,10-dihydro-9,10-ethanoanthracene ent-8. Highly enantioselective and diastereoselective aldolic intermolecular reactions (up to 95% enantiomeric excess, 93:7 anti/syn) between aliphatic ketones (20 equiv) and a range of aromatic aldehydes (1 equiv) were successfully carried out in the presence of water (10 equiv) and monochloroacetic acid (10 mol%), solvent-free conditions, at room temperature over 24 h using organocatalysts 1-7 (5 mol%). Stereoselective induction using density functional theory-based methods was consistent with the experimental data.
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Affiliation(s)
- Gabriela Huelgas
- Departamento de Ciencias Químico Biológicas, Universidad de las Americas Puebla, Cholula, Puebla, Mexico
| | - Ratnasamy Somanathan
- Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, Tijuana, Baja California, Mexico
| | | | - Haydee Rojas Cabrera
- Departamento de Ciencias Químico Biológicas, Universidad de las Americas Puebla, Cholula, Puebla, Mexico
| | | | - Alejandra Domínguez-Huerta
- Departamento de Ciencias Químico Biológicas, Universidad de las Americas Puebla, Cholula, Puebla, Mexico
| | - Rocío Sabala
- Departamento de Ciencias Químico Biológicas, Universidad de las Americas Puebla, Cholula, Puebla, Mexico
| | - Cecilia Anaya de Parrodi
- Departamento de Ciencias Químico Biológicas, Universidad de las Americas Puebla, Cholula, Puebla, Mexico
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Saa JM, Frontera A. On the Role of Water as a Catalyst in Prebiotic Chemistry. Chemphyschem 2020; 21:313-320. [PMID: 31904135 DOI: 10.1002/cphc.201901069] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 12/17/2019] [Indexed: 12/20/2022]
Abstract
In this manuscript we provide computational support to the catalytic role of water in all kinds of pseudopericyclic reactions operating in the reductive acid cycle, as well as in other metabolic processes. Water catalysis is not limited to those reactions where simple translocation of hydrogen atoms occurs, such as those represented by NuH+E→Nu-EH general equation. Indeed, water catalysis is more general and extremely important in tautomerization reactions of the type HX-Y=Z→X=Y-ZH, which operate in the reductive citric acid cycle and metabolic processes. Moreover, the comprehensive theoretical study reported herein illustrates that these reactions appear to behave as authentic enzyme-catalyzed reactions showing Michaelis-Menten behavior, however with the abnormal singularity that the concentration of the catalytic "water clusters" of different length and nature must be taken as a huge number. Overall, the results presented are suggestive of the workability of the so-called "metabolism first" proposal in a hot water world, as water catalysis eliminates the dilution problem frequently associated to this proposal.
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Affiliation(s)
- José M Saa
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca (Baleares), SPAIN
| | - Antonio Frontera
- Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122, Palma de Mallorca (Baleares), SPAIN
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Effects of Water Addition on a Catalytic Fluorination of Dienamine. Molecules 2019; 24:molecules24193428. [PMID: 31546593 PMCID: PMC6804063 DOI: 10.3390/molecules24193428] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 09/18/2019] [Accepted: 09/18/2019] [Indexed: 11/02/2022] Open
Abstract
We investigate the effects of water addition on a highly stereocontrolled fluorination of dienamine generated by α-branched enals and 6'-hydroxy-9-amino-9-deoxy-epi-quinidine with N-fluorobenzenesulfonimide (NFSI) in the presence of Brønsted acid both experimentally and theoretically. It is experimentally found that water addition to organic solvent significantly shortens the reaction time whereas excessive water addition decreases the enantiomeric excess. The results calculated with three-dimensional reference interaction site model self-consistent field (3D-RISM-SCF) method are in good agreement with the experimental ones. It is revealed that the shortness of reaction time is caused by the reactant destabilization and that the decrease in enantiomeric excess is due to the difference of hydration free energy between two transition states.
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8
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Lou Y, Shantz DF. Palladium-Containing and Metal-Free Supported Dendrons As Catalysts in Multistep Conversion of Oxygenates to Fuels. ChemCatChem 2019. [DOI: 10.1002/cctc.201801584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yueyun Lou
- Department of Chemical and Biomolecular Engineering; Tulane University; 6823 St. Charles Avenue New Orleans LA-70118 USA
| | - Daniel F. Shantz
- Department of Chemical and Biomolecular Engineering; Tulane University; 6823 St. Charles Avenue New Orleans LA-70118 USA
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9
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Yasuda M, Saga Y, Tokunaga T, Itoh S, Aoki S. Stereoselective aldol reactions of dihydroxyacetone derivatives catalyzed by chiral Zn2+ complexes. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Lee HJ, Arumugam N, Almansour AI, Kumar RS, Maruoka K. Practical synthesis of four different pseudoenantiomeric organocatalysts with both cis- and trans-substituted 1,2-cis-cyclohexanediamine structures from a common intermediate. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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11
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Hayashi Y, Yamazaki T, Kawauchi G, Sato I. Prolinate Salt as a Catalyst in the syn-Selective, Asymmetric Mannich Reaction of Alkynyl Imine. Org Lett 2018; 20:2391-2394. [DOI: 10.1021/acs.orglett.8b00728] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [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, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tatsuya Yamazaki
- Department of Industrial Chemistry, Faculty of Engineering, Tokyo University of Science, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Genki Kawauchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Itaru Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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12
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Kanomata K, Tatebayashi N, Habaki X, Kitaoka T. Cooperative catalysis of cellulose nanofiber and organocatalyst in direct aldol reactions. Sci Rep 2018; 8:4098. [PMID: 29511253 PMCID: PMC5840413 DOI: 10.1038/s41598-018-22350-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 02/21/2018] [Indexed: 12/23/2022] Open
Abstract
Cellulose nanofibers (CNFs) are finding a wide range of applications in the forthcoming sustainable society because of their carbon-neutral renewability and superior physicochemical properties. Here, we first show a cooperative organocatalysis by combining TEMPO-oxidized cellulose nanofiber (TOCN) and proline to enhance the catalytic efficiency in a direct aldol reaction. The yields of proline-catalyzed aldol products drastically increased in the presence of catalytically-inactive TOCN. This effect was also achieved by simply adding the TOCN to the reaction conditions where various proline analogues including structurally simple pyrrolidine and piperidine were used instead of proline. TOCN was superior to physically-pulverized CNF in the organocatalytic efficiency, and the nanofibrillation of cellulose microfibrils in reaction media was essential to induce the drastic enhancement in catalytic activity. The present finding will bring a new entry in the applications of CNFs, and open up a new phase in developing highly efficient molecular transformations in green chemical industries.
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Affiliation(s)
- Kyohei Kanomata
- Department of Agro-Environmental Sciences, Graduated School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Naoko Tatebayashi
- Department of Agro-Environmental Sciences, Graduated School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Xin Habaki
- Department of Agro-Environmental Sciences, Graduated School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan
| | - Takuya Kitaoka
- Department of Agro-Environmental Sciences, Graduated School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan.
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13
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Lee HJ, Moteki SA, Arumugam N, Almansour AI, Kumar RS, Liu Y, Maruoka K. Practical Synthesis of Two Different Pseudoenantiomeric Organocatalysts with cis
-Cyclohexanediamine Structure from a Common Chiral Source. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hyo-Jun Lee
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Shin A. Moteki
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
| | - Natarajan Arumugam
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Abdulrahman I. Almansour
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science; King Saud University; P.O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Yan Liu
- School of Chemical Engineering and Light Industry; Guangdong University of Technology; No.100 West Waihuan Road HEMC Panyu District Guangzhou 510006 China
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo Kyoto 606-8502 Japan
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14
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Hayashi Y, Umekubo N, Hirama T. Prolinate Salts as Catalysts for α-Aminoxylation of Aldehyde and Associated Mechanistic Insights. Org Lett 2017; 19:4155-4158. [PMID: 28783367 DOI: 10.1021/acs.orglett.7b01433] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Nariyoshi Umekubo
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Taku Hirama
- Department of Chemistry, Graduate School
of Science, Tohoku University, 6-3 Aramaki-Aza, Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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15
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Liu J, Xu J, Li Z, Huang Y, Wang H, Gao Y, Guo T, Ouyang P, Guo K. Carbocation Organocatalysis in Interrupted Povarov Reactions to cis
-Fused Pyrano- and Furanobenzodihydropyrans. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700634] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jingjing Liu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Jiaxi Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Zhenjiang Li
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Yu Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Haixin Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Yu Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Tianfo Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Pingkai Ouyang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
| | - Kai Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Road South 211816 Nanjing China
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17
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Sameera WMC, Kumar Sharma A, Maeda S, Morokuma K. Artificial Force Induced Reaction Method for Systematic Determination of Complex Reaction Mechanisms. CHEM REC 2016; 16:2349-2363. [PMID: 27492586 DOI: 10.1002/tcr.201600052] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Indexed: 01/07/2023]
Abstract
Nowadays, computational studies are very important for the elucidation of reaction mechanisms and selectivity of complex reactions. However, traditional computational methods usually require an estimated reaction path, mainly driven by limited experimental implications, intuition, and assumptions of stationary points. However, the artificial force induced reaction (AFIR) method in the global reaction route mapping (GRRM) strategy can be used for unbiased and automatic reaction path searches for complex reactions. In this account, we highlight applications of the AFIR method to a variety of reactions (organic, organometallic, enzymatic, and photochemical) of complex molecular systems. In addition, the AFIR method has been successfully used to rationalise the origin of stereo- and regioselectivity. The AFIR method can be applied from small to large molecular systems, and will be a very useful tool for the study of complex molecular problems in many areas of chemistry, biology, and material sciences.
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Affiliation(s)
- W M C Sameera
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto, 606-8103, Japan
| | | | - Satoshi Maeda
- Department of Chemistry, Hokkaido University, Sapporo, 060-0810, Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry, Kyoto University, Kyoto, 606-8103, Japan.
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Maeda S, Harabuchi Y, Takagi M, Taketsugu T, Morokuma K. Artificial Force Induced Reaction (AFIR) Method for Exploring Quantum Chemical Potential Energy Surfaces. CHEM REC 2016; 16:2232-2248. [DOI: 10.1002/tcr.201600043] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Satoshi Maeda
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Yu Harabuchi
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Makito Takagi
- Graduate School of Chemical Sciences and Engineering; Hokkaido University; Sapporo 060-8628 Japan
| | - Tetsuya Taketsugu
- Department of Chemistry, Faculty of Science; Hokkaido University; Sapporo 060-0810 Japan
| | - Keiji Morokuma
- Fukui Institute for Fundamental Chemistry, Kyoto University; Kyoto 606-8103 Japan
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Abstract
Asymmetric organocatalysis often operates under near ambient conditions, which means it is air and moisture compatible. However, in many examples water is indeed necessary for achieving excellent catalytic results. Ranging from the addition of small amounts of water to a reaction, to complex catalytic systems in the presence of water as the only reaction medium, this review offers an illustrative classification of the uses of water in asymmetric organocatalysis.
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Affiliation(s)
- Ciril Jimeno
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Department of Biological Chemistry and Molecular Modelling, c/Jordi Girona 18-26, E08034 Barcelona, Spain.
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Japan Prize: H. Hosono / Asahi Prize: S. Murai / Merck-Banyu Lectureship Award: S. Maeda. Angew Chem Int Ed Engl 2016; 55:5636. [DOI: 10.1002/anie.201602514] [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]
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21
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Japan-Preis: H. Hosono / Asahi-Preis: S. Murai / Merck-Banyu Lectureship Award: S. Maeda. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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