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Scepankova H, Galante D, Espinoza-Suaréz E, Pinto CA, Estevinho LM, Saraiva J. High Hydrostatic Pressure in the Modulation of Enzymatic and Organocatalysis and Life under Pressure: A Review. Molecules 2023; 28:molecules28104172. [PMID: 37241913 DOI: 10.3390/molecules28104172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/19/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
The interest in high hydrostatic pressure (HHP) is mostly focused on the inactivation of deleterious enzymes, considering the quality-related issues associated with enzymes in foods. However, more recently, HHP has been increasingly studied for several biotechnological applications, including the possibility of carrying out enzyme-catalyzed reactions under high pressure. This review aims to comprehensively present and discuss the effects of HHP on the kinetic catalytic action of enzymes and the equilibrium of the reaction when enzymatic reactions take place under pressure. Each enzyme can respond differently to high pressure, mainly depending on the pressure range and temperature applied. In some cases, the enzymatic reaction remains significantly active at high pressure and temperature, while at ambient pressure it is already inactivated or possesses minor activity. Furthermore, the effect of temperature and pressure on the enzymatic activity indicated a faster decrease in activity when elevated pressure is applied. For most cases, the product concentration at equilibrium under pressure increased; however, in some cases, hydrolysis was preferred over synthesis when pressure increased. The compiled evidence of the effect of high pressure on enzymatic activity indicates that pressure is an effective reaction parameter and that its application for enzyme catalysis is promising.
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Affiliation(s)
- Hana Scepankova
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- CIMO, Mountain Research Center Polytechnic Institute of Bragança, Campus Santa Apolónia, 5301-855 Bragança, Portugal
| | - Diogo Galante
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - Carlos A Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Letícia M Estevinho
- CIMO, Mountain Research Center Polytechnic Institute of Bragança, Campus Santa Apolónia, 5301-855 Bragança, Portugal
| | - Jorge Saraiva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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2
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Design, Catalyst-Free Synthesis of New Novel α-Trifluoromethylated Tertiary Alcohols Bearing Coumarins as Potential Antifungal Agents. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010260. [PMID: 36615454 PMCID: PMC9822406 DOI: 10.3390/molecules28010260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/31/2022]
Abstract
A new method for the synthesis of α-trifluoromethylated tertiary alcohols bearing coumarins is described. The reaction of 3-(trifluoroacetyl)coumarin and pyrrole provided the target compounds with high yields under catalyst-free, mild conditions. The crystal structure of compound 3fa was investigated by X-ray diffraction analysis. The biological activities, such as in vitro antifungal activity of the α-trifluoromethylated tertiary alcohols against Fusarium graminearum, Fusarium oxysporum, Fusarium moniliforme, Rhizoctonia solani Kuhn, and Phytophthora parasitica var nicotianae, were investigated. The bioassay results indicated that compounds 3ad, 3gd, and 3hd showed broad-spectrum antifungal activity in vitro. Compound 3cd exhibited excellent fungicidal activity against Rhizoctonia solani Kuhn, with an EC50 value of 10.9 μg/mL, which was comparable to that of commercial fungicidal triadimefon (EC50 = 6.1 μg/mL). Furthermore, molecular docking study suggested that 3cd had high binding affinities with 1W9U, like argifin.
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Wu XT, Ma F, Xiao EK, Yin J, Sun F, Wang Q, Jiang YJ, Chen P. One-pot synthesis of tri- and di-fluoromethylated bis(indolyl)methanols via Friedel-Crafts-type acylation and alkylation. Org Biomol Chem 2022; 20:7491-7498. [PMID: 36106547 DOI: 10.1039/d2ob01281b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient methodology for the first synthesis of tri- and di-fluoromethyl-bis(indolyl)methanols has been demonstrated through a one-pot Friedel-Crafts-type acylation-alkylation of readily available indoles and fluorinated acids. This simple protocol was successfully performed under metal-, additive-, toxic-solvent-, and protective-gas-free conditions, and delivered a wide range of tri- and di-fluoromethyl-bis(indolyl)methanols in moderate to high yields. Notably, this reaction can tolerate diverse vital and reactive functional groups. Furthermore, this one-pot Friedel-Crafts-type acylation-alkylation can be readily expanded to the gram scale with no obvious decrease in the yield, demonstrating its high application potential.
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Affiliation(s)
- Xian-Tao Wu
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - Feng Ma
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - En-Kai Xiao
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - Jin Yin
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - Fuxing Sun
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
| | - Qiang Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China
| | - Yi-Jun Jiang
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
| | - Peng Chen
- School of Materials Science and Chemical Engineering, Institute of Drug Discovery Technology, Ningbo University, Ningbo 315211, P. R. China.
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4
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Rulev AY, Zubkov FI. Hyperbaric reactions in organic synthesis. Progress from 2006 to 2020. Org Biomol Chem 2022; 20:2320-2355. [DOI: 10.1039/d1ob01423d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This comprehensive review summarizes the published literature data concerning above 1 kbar reactions for the purposes of preparative organic synthesis (more then 50 mg of the initial substance) from 2006...
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5
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Sawano T, Matsui T, Koga M, Ishikawa E, Takeuchi R. Iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with secondary allylic alcohols. Chem Commun (Camb) 2021; 57:9684-9687. [PMID: 34555140 DOI: 10.1039/d1cc03968g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The development of efficient synthetic methods of 7-azaindoles has been desired due to the useful biological activities and physical properties. We report the first example of the iridium-catalyzed C3-selective asymmetric allylation of 7-azaindoles with racemic secondary allylic alcohols to give only branched allylation products in good to high yields with high enantioselectivity (up to >99.5% ee). Allylic alcohols and 7-azaindoles with a variety of functional groups including halogen and heteroaromatic groups are compatible with the reaction conditions. Furthermore, transformations of the obtained allylation products are demonstrated without a significant loss of enantiomeric excess.
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Affiliation(s)
- Takahiro Sawano
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Takeshi Matsui
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Marina Koga
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
| | - Eri Ishikawa
- Department of Applied Chemistry, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan.
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5258, Japan.
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Nipate DS, Jaspal S, Shinde VN, Rangan K, Kumar A. TEMPO-Mediated Cross-Dehydrogenative Coupling of Indoles and Imidazo[1,2- a]pyridines with Fluorinated Alcohols. Org Lett 2021; 23:1373-1377. [PMID: 33539101 DOI: 10.1021/acs.orglett.1c00031] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A simple and highly efficient metal-free method has been developed for hydroxyfluoroalkylation of indoles and imidazo[1,2-a]pyridines via TEMPO-mediated C(sp3)-H and C(sp2)-H bond cross-dehydrogenative coupling of fluorinated alcohols and indoles. The protocol showed broad substrate scope, afforded good yields of hydroxyfluoroalkylated products, and was amenable for scale-up. Mechanistic investigation indicated involvement of the radical pathway.
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Affiliation(s)
- Dhananjay S Nipate
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Pilani, Rajasthan 333031, India
| | - Sonam Jaspal
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Pilani, Rajasthan 333031, India
| | - Vikki N Shinde
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Pilani, Rajasthan 333031, India
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Hyderabad, Telangana 500078, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology & Science Pilani, Pilani, Rajasthan 333031, India
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Krištofíková D, Modrocká V, Mečiarová M, Šebesta R. Green Asymmetric Organocatalysis. CHEMSUSCHEM 2020; 13:2828-2858. [PMID: 32141177 DOI: 10.1002/cssc.202000137] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/05/2020] [Indexed: 06/10/2023]
Abstract
Asymmetric organocatalysis is becoming one of the main tools for the synthesis of chiral compounds that are needed as medicines, crop protection agents, and other bioactive molecules. It can be effectively combined with various green chemistry methodologies. Intensification techniques, such as ball milling, flow, high pressure, or light, bring not only higher yields, faster reactions, and easier product isolation, but also new reactivities. More sustainable reaction media, such as ionic liquids, deep eutectic solvents, green solvent alternatives, and water, also considerably enhance the sustainability profile of many organocatalytic reactions.
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Affiliation(s)
- Dominika Krištofíková
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Viktória Modrocká
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Mária Mečiarová
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina, Ilkovicova 6, 842 15, Bratislava, Slovakia
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Pikus G, Tyszka-Gumkowska A, Jurczak J. Static Combinatorial Chemistry: A High-Pressure Approach to the Synthesis of Macrocyclic Benzoamide Libraries. ACS COMBINATORIAL SCIENCE 2020; 22:213-221. [PMID: 32163264 PMCID: PMC7588042 DOI: 10.1021/acscombsci.0c00024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/12/2020] [Indexed: 11/29/2022]
Abstract
We investigated the yield and distribution of macrocyclic products formed in combinatorial libraries (CLs) obtained via double-amidation reactions of methyl diesters with α,ω-diamines. The application of the static combinatorial chemistry (SCC) approach allowed us to generate a large number of macrocyclic diamides and tetraamides in single experiments. We show that high-pressure conditions accelerate the macrocyclization process but also have a great impact on the distribution of macrocyclic products in the presented libraries, promoting the formation of macrocyclic compounds and eliminating the linear ones. The distribution of macrocyclic products was also found to be strongly dependent on the structural features of the substrates employed. Furthermore, in three- and four-substrate CLs we observed the formation of a new type of hybrid tetraamides consisting of three different components.
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Affiliation(s)
- Grzegorz Pikus
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Agata Tyszka-Gumkowska
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Janusz Jurczak
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
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9
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Wang W, Xiong W, Wang J, Wang QA, Yang W. Brønsted Acid-Catalyzed Asymmetric Friedel-Crafts Alkylation of Indoles with Benzothiazole-Bearing Trifluoromethyl Ketone Hydrates. J Org Chem 2020; 85:4398-4407. [PMID: 32118421 DOI: 10.1021/acs.joc.0c00116] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient Brønsted acid-catalyzed asymmetric Friedel-Crafts alkylation of indoles with benzothiazole-bearing trifluoromethyl ketone hydrates as electrophiles has been developed. The mild organocatalytic reactions proceeded well with low catalyst loading to afford a range of enantioenriched α-trifluoromethyl tertiary alcohols containing both benzothiazole and indole rings with excellent yields and enantioselectivities.
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Affiliation(s)
- Wei Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wenhui Xiong
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Jinping Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Qiu-An Wang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Wen Yang
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
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10
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Weinbender T, Hofmann M, Reiser O. Functional changes of biomolecules and organocatalysts as a probe for pressure effects in solution. Biophys Chem 2019; 257:106280. [PMID: 31877450 DOI: 10.1016/j.bpc.2019.106280] [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: 09/12/2019] [Revised: 11/10/2019] [Accepted: 11/10/2019] [Indexed: 10/25/2022]
Abstract
High pressure acts as a mild and non-destructive activation mode for chemical reactions. However, in the context of organo-/biocatalysis, high pressure activation, has not been investigated systematically, although there are significant benefits such as rate acceleration, increased selectivity and the possibility of suppressing side product formation. The influence of hydrostatic pressure in solution on the catalytic performance of enzymes and small molecule organocatalysts such as amino acids, peptides, amines, cinchona alkaloids and thioureas is evaluated in this review, taking reactivity and selectivity as a probe to identify pressure effects on biomolecules.
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Affiliation(s)
- Thomas Weinbender
- Institute of Organic Chemistry, University Regensburg Universitätsstr, 31, 93053 Regensburg, Germany
| | - Martin Hofmann
- Institute of Organic Chemistry, University Regensburg Universitätsstr, 31, 93053 Regensburg, Germany
| | - Oliver Reiser
- Institute of Organic Chemistry, University Regensburg Universitätsstr, 31, 93053 Regensburg, Germany.
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11
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Tyszka-Gumkowska A, Jurczak J. A General Method for High-Pressure-Promoted Postfunctionalization of Unclosed Cryptands: Potential Phase-Transfer Catalysts. J Org Chem 2019; 85:1308-1314. [PMID: 31825217 DOI: 10.1021/acs.joc.9b02985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a high-pressure approach to facile late-stage functionalization of unclosed cryptands (UCs) (11 examples, yield up to 99%). Direct comparison of classic and high-pressure conditions of the quaternization reaction in a sterically crowded intraannular position is investigated, and differences in the reactivity of tertiary amine substrates are discussed. Finally, we demonstrated the application of UCs as catalysts for synthetically important alkylation reactions under phase-transfer conditions.
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Affiliation(s)
- Agata Tyszka-Gumkowska
- Institute of Organic Chemistry Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
| | - Janusz Jurczak
- Institute of Organic Chemistry Polish Academy of Sciences , Kasprzaka 44/52 , 01-224 Warsaw , Poland
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12
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Maji B. Stereoselective Haliranium, Thiiranium and Seleniranium Ion‐Triggered Friedel–Crafts‐Type Alkylations for Polyene Cyclizations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Biswajit Maji
- Department of ChemistryIndira Gandhi National Tribal University Amarkantak – 484886 Madhya Pradesh India
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13
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Cai L, Zhao Y, Huang T, Meng S, Jia X, Chan ASC, Zhao J. Chiral Phosphoric-Acid-Catalyzed Regioselective and Enantioselective C7-Friedel–Crafts Alkylation of 4-Aminoindoles with Trifluoromethyl Ketones. Org Lett 2019; 21:3538-3542. [DOI: 10.1021/acs.orglett.9b00821] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Lu Cai
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People’s Republic of China
| | - Yunlong Zhao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Tongkun Huang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Shanshui Meng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Xian Jia
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People’s Republic of China
| | - Albert S. C. Chan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Junling Zhao
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
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14
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Liu YL, Lin XT. Recent Advances in Catalytic Asymmetric Synthesis of Tertiary Alcohols via
Nucleophilic Addition to Ketones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801023] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yun-Lin Liu
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou 510006 People's Republic of China
| | - Xiao-Tong Lin
- School of Chemistry and Chemical Engineering; Guangzhou University; Guangzhou 510006 People's Republic of China
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15
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Muthukumar A, Sekar G. Friedel–Crafts Hydroxyalkylation of Indoles with α-Keto Amides using Reusable K3PO4/nBu4NBr Catalytic System in Water. J Org Chem 2018; 83:8827-8839. [DOI: 10.1021/acs.joc.8b00844] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Alagesan Muthukumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
| | - Govindasamy Sekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamilnadu, India
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Ma J, Kass SR. Asymmetric Arylation of 2,2,2-Trifluoroacetophenones Catalyzed by Chiral Electrostatically-Enhanced Phosphoric Acids. Org Lett 2018; 20:2689-2692. [PMID: 29696976 DOI: 10.1021/acs.orglett.8b00900] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A series of highly reactive metal-free chiral phosphoric acids possessing positively charged phosphonium ion substituents are reported and have been applied to Friedel-Crafts alkylations of indoles and 2,2,2-trifluoromethyl aryl ketones. These catalysts are orders-of-magnitude more active and have similar or better enantioselectivities than their noncharged analogues. High tolerance to a range of substrates with electron-withdrawing and electron-donating substituents was also observed.
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Affiliation(s)
- Jie Ma
- Department of Chemistry , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
| | - Steven R Kass
- Department of Chemistry , University of Minnesota , 207 Pleasant Street SE , Minneapolis , Minnesota 55455 , United States
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17
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Cholewiak A, Adamczyk K, Kopyt M, Kasztelan A, Kwiatkowski P. High pressure-assisted low-loading asymmetric organocatalytic conjugate addition of nitroalkanes to chalcones. Org Biomol Chem 2018; 16:4365-4371. [DOI: 10.1039/c8ob00561c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective and relatively fast (1–5 h) Michael reaction with substantial reduction of organocatalyst loading (0.2–1 mol%) was developed under high-pressure conditions (up to 9 kbar) and at room temperature.
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Affiliation(s)
| | - Kamil Adamczyk
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
| | - Michał Kopyt
- Faculty of Chemistry
- University of Warsaw
- 02-093 Warsaw
- Poland
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18
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Morzyk-Ociepa B, Szmigiel K, Petrus R, Turowska-Tyrk I, Danuta Michalska. A novel coordination polymer of 7-azaindole-3-carboxylic acid with sodium ions: crystal and molecular structures, vibrational spectra and DFT calculations. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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19
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Biedrzycki M, Kasztelan A, Kwiatkowski P. High-Pressure Accelerated Enantioselective Addition of Indoles to Trifluoromethyl Ketones with a Low Loading of Chiral BINOL-Derived Phosphoric Acid. ChemCatChem 2017. [DOI: 10.1002/cctc.201700281] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Michał Biedrzycki
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | - Adrian Kasztelan
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
| | - Piotr Kwiatkowski
- Faculty of Chemistry; University of Warsaw; Pasteura 1 02-093 Warsaw Poland
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20
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Wang P, Li HF, Zhao JZ, Du ZH, Da CS. Organocatalytic Enantioselective Cross-Aldol Reaction of o-Hydroxyarylketones and Trifluoromethyl Ketones. Org Lett 2017; 19:2634-2637. [DOI: 10.1021/acs.orglett.7b00828] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pei Wang
- Institute
of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Hong-Feng Li
- Institute
of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jia-Zhen Zhao
- Institute
of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhi-Hong Du
- Institute
of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
| | - Chao-Shan Da
- Institute
of Biochemistry and Molecular Biology, School of Life Sciences, Lanzhou University, Lanzhou 730000, China
- State
Key Laboratory of Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- Key
Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou 730000, China
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