1
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Reddy TS, Raja K, Mandapati KR, Goli SR, Babu MSS. Efficient Approach for the Synthesis of Aryl Vinyl Ketones and Its Synthetic Application to Mimosifoliol with DFT and Autodocking Studies. Molecules 2023; 28:6214. [PMID: 37687043 PMCID: PMC10488981 DOI: 10.3390/molecules28176214] [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: 07/25/2023] [Revised: 08/16/2023] [Accepted: 08/20/2023] [Indexed: 09/10/2023] Open
Abstract
An efficient and elegant method was developed for the preparation of substituted phenyl vinyl ketones using low-cost and commercially available ethyl chloroformate and diisopropylethylamine as reagents. This methodology was also applied to the synthesis of natural products such as mimosifoliol and quinolines. Frontier molecular orbital (FMO) studies on mimosifoliol were carried out to understand its chemical reactivity. Electron localization function (ELF) and localized orbital locator (LOL) analysis gave information about localized and delocalized electrons. Reduced density gradient (RDG) analysis gave information on steric, van der Waals, and hydrogen-bonding interactions. Molecular electrostatic potential (MEP) and Fukui functions gave information about nucleophilic and electrophilic attack. Nonlinear optical (NLO) analysis represented the mimosifoliol good NLO material. Molecular docking showed that the mimosifoliol compound had effectively inhibited the aspulvinone dimethylallyltransferase enzyme.
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Affiliation(s)
- Tummuri Sudheer Reddy
- Department of Chemistry, GITAM University Hyderabad Campus, Hyderabad 502329, Telangana, India;
| | - Karreddula Raja
- Department of Chemistry, Rajeev Gandhi Memorial College of Engineering and Technology (Autonomous), Nandyal 518501, Andhra Pradesh, India;
| | - Kishore Reddy Mandapati
- Synaptics Labs Private Limited, Kurmannapalem, Matrusri Nagar, Gajuwaka, Visakhapatnam 530026, Andhra Pradesh, India
| | - Srinivasa Reddy Goli
- Synaptics Labs Private Limited, Kurmannapalem, Matrusri Nagar, Gajuwaka, Visakhapatnam 530026, Andhra Pradesh, India
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2
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Zhu XQ, Wang Q, Zhu J. Organocatalytic Enantioselective Diels-Alder Reaction of 2-Trifluoroacetamido-1,3-dienes with α,β-Unsaturated Ketones. Angew Chem Int Ed Engl 2023; 62:e202214925. [PMID: 36347807 DOI: 10.1002/anie.202214925] [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: 10/10/2022] [Indexed: 11/11/2022]
Abstract
We report herein the first examples of chiral phosphoric acid-catalyzed enantioselective Diels-Alder reactions between 2-trifluoroacetamido-1,3-dienes 1 and α,β-unsaturated carbonyl compounds 2. Polysubstituted 1-acetamido cyclohexenes 3 were formed in high yields with excellent diastereo- and enantioselectivities. The reaction proceeds through a stepwise process as shown by deuterium labelling experiments. A catalytic enantioselective three-component reaction of 1, 2 and ortho-hydroxybenzhydryl alcohols 4 was subsequently developed furnishing the densely functionalized hexahydroxanthenes 5 in a highly stereoselective manner. This multicomponent reaction generates four chemical bonds with concurrent creation of five contiguous stereocenters.
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Affiliation(s)
- Xin-Qi Zhu
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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3
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Caballero-García G, Goodman JM. N-Triflylphosphoramides: highly acidic catalysts for asymmetric transformations. Org Biomol Chem 2021; 19:9565-9618. [PMID: 34723293 DOI: 10.1039/d1ob01708j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
N-Triflylphosphoramides (NTPA), have become increasingly popular catalysts in the development of enantioselective transformations as they are stronger Brønsted acids than the corresponding phosphoric acids (PA). Their highly acidic, asymmetric active site can activate difficult, unreactive substrates. In this review, we present an account of asymmetric transformations using this type of catalyst that have been reported in the past ten years and we classify these reactions using the enantio-determining step as the key criterion. This compendium of NTPA-catalysed reactions is organised into the following categories: (1) cycloadditions, (2) electrocyclisations, polyene and related cyclisations, (3) addition reactions to imines, (4) electrophilic aromatic substitutions, (5) addition reactions to carbocations, (6) aldol and related reactions, (7) addition reactions to double bonds, and (8) rearrangements and desymmetrisations. We highlight the use of NTPA in total synthesis and suggest mnemonics which account for their enantioselectivity.
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Affiliation(s)
| | - Jonathan M Goodman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, UK.
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4
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Briou B, Améduri B, Boutevin B. Trends in the Diels-Alder reaction in polymer chemistry. Chem Soc Rev 2021; 50:11055-11097. [PMID: 34605835 DOI: 10.1039/d0cs01382j] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Diels-Alder (DA) reaction is regarded as quite a useful strategy in organic and macromolecular syntheses. The reversibility of this reaction and the advent of self-repair technology, as well as other applications in controlled macromolecular architectures and crosslinking, have strongly boosted the research activity, which is still attracting a huge interest in both academic and industrial research. The DA reaction is a simple and scalable toolbox. Though it is well-established that furan/maleimide is the most studied diene/dienophile couple, this perspective article reports strategies using other reversible systems with deeper features on other types of diene/dienophile pairs being either petro-sourced (cyclopentadiene, anthracene) or bio-sourced (muconic and sorbic acids, myrcene and farnesene derivatives, eugenol, cardanol). This review is composed of four sections. The first one briefly recalls the background on the DA reactions involving cyclodimerizations, dienes, and dienophiles, parameters affecting the reaction, while the second part deals with the furan/maleimide reaction. The third one deals with petro-sourced and bio-sourced (or products becoming bio-sourced) reactants involved in DA reactions are also listed and discussed. Finally, the authors' opinion is given on the potential future of the crosslinking-decrosslinking reaction, especially regarding the process (e.g., key temperatures of decrosslinking) or possibly monocomponents. It presents both fundamental and applied research on the DA reaction and its applications.
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Affiliation(s)
- Benoit Briou
- Institut Charles Gerhardt, CNRS, Université de Montpellier, ENSCM, Montpellier, France.
| | - Bruno Améduri
- Institut Charles Gerhardt, CNRS, Université de Montpellier, ENSCM, Montpellier, France.
| | - Bernard Boutevin
- Institut Charles Gerhardt, CNRS, Université de Montpellier, ENSCM, Montpellier, France.
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5
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Nájera C, Sansano JM, Yus M. Diels-Alder reactions of 1-amino-1,3-dienes and related systems. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Varlet T, Masson G. Enamides and dienamides in phosphoric acid-catalysed enantioselective cycloadditions for the synthesis of chiral amines. Chem Commun (Camb) 2021; 57:4089-4105. [DOI: 10.1039/d1cc00590a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This feature article describes how enamides and dienamides can participate in chiral phosphoric acid catalyzed enantioselective cycloadditions to prepare a wide range of cyclic amines.
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Affiliation(s)
- Thomas Varlet
- Université Paris-Saclay
- Institut de Chimie des Substances Naturelles
- ICSN-CNRS UPR 2301
- 91198 Gif-sur-Yvette
- France
| | - Géraldine Masson
- Université Paris-Saclay
- Institut de Chimie des Substances Naturelles
- ICSN-CNRS UPR 2301
- 91198 Gif-sur-Yvette
- France
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7
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Tu TH, Chan YT. Synthesis of Terpyridine End-Modified Polystyrenes through ATRP for Facile Construction of Metallo-Supramolecular P3HT- b-PS Diblock Copolymers. Polymers (Basel) 2020; 12:E2842. [PMID: 33260312 PMCID: PMC7760035 DOI: 10.3390/polym12122842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 01/01/2023] Open
Abstract
Complementary complexation between 2,2':6',2″-terpyridine (tpy) and 6,6″-dianthracenyl-substituted tpy in the presence of Zn(II) ions provided an efficient strategy for construction of metallo-supramolecular diblock copolymers. To synthesize well-defined tpy-modified polystyrenes (PSs), an Fe(II) bis(tpy) complex bearing α-bromoester as a metallo-initiator was applied to atom transfer radical polymerization (ATRP) to avoid poisoning the Cu(I) catalyst. Subsequently, a series of tpy-functionalized PSs was obtained after the decomplexation of junction by tetrakis(triethylammonium) ethylenediaminetetraacetate (TEA-EDTA) under mild conditions. The metallo-supramolecular poly(3-hexylthiophene) (P3HT)-block-PS diblock copolymers were prepared by simply mixing the corresponding terminally tpy-modified homopolymers with Zn(II) ions, and further characterized by 1H NMR and diffusion ordered spectroscopy (DOSY) experiments. The approach using metallo-initiators for ATRP offers an opportunity to construct tpy-functionalized polymers with controllable molecular weights and low polydispersities. Through the spontaneous heteroleptic complexation, a variety of metallo-supramolecular diblock copolymers with tunable block ratios can be easily constructed.
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Affiliation(s)
| | - Yi-Tsu Chan
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan;
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8
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Yoo J, Ha HJ, Kim B, Cho CW. Synthesis of α-Trifluoromethylthio-α,β-Unsaturated Carbonyl Compounds by DABCO-Mediated Electrophilic Trifluoromethylthiolation with N-SCF 3-Dibenzenesulfonimide. J Org Chem 2020; 85:7077-7085. [PMID: 32401493 DOI: 10.1021/acs.joc.0c00448] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A DABCO-mediated electrophilic α-trifluoromethylthiolation of α,β-unsaturated carbonyl compounds comprising no β-substituents has been achieved using N-trifluoromethylthio-dibenzenesulfonimide as the SCF3 source. The direct trifluoromethylthiolation provides the corresponding α-trifluoromethylthio-α,β-unsaturated carbonyl products in good yields (up to 88%). Furthermore, the vinyl group in the α-trifluoromethylthio-α,β-unsaturated carbonyl product was successfully transformed into diverse functional groups in good to excellent yields (70-95%) by reactions such as epoxidation, aziridination, hydrocyanation, and hydrogenation.
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Affiliation(s)
- Jeyeon Yoo
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Heun-Jong Ha
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Bora Kim
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Chang-Woo Cho
- Department of Chemistry and Green-Nano Materials Research Center, Kyungpook National University, Daegu 41566, Republic of Korea
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9
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Granados A, Shafir A, Arrieta A, Cossío FP, Vallribera A. Stepwise Mechanism for the Bromination of Arenes by a Hypervalent Iodine Reagent. J Org Chem 2020; 85:2142-2150. [DOI: 10.1021/acs.joc.9b02784] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Albert Granados
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Alexandr Shafir
- Department of Biological Chemistry, IQAC-CSIC and Centro de Innovación en Química Avanzada (ORFEO-CINQA), c/ Jordi Girona 18−26, 08034 Barcelona, Spain
| | - Ana Arrieta
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad del País Vasco and Donostia International Physics Center (DIPC), P° Manuel Lardizabal, 3, 20018 Donostia-San Sebastián, Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad del País Vasco and Donostia International Physics Center (DIPC), P° Manuel Lardizabal, 3, 20018 Donostia-San Sebastián, Spain
| | - Adelina Vallribera
- Departament de Química and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
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10
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Fu S, Liu B. Recent progress in the synthesis of limonoids and limonoid-like natural products. Org Chem Front 2020. [DOI: 10.1039/d0qo00203h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Recent progress in syntheses of limonoids and limonoid-like natural products is reviewed. The current “state-of-art” advance on novel synthetic strategy are summarized and future outlook will be presented.
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Affiliation(s)
- Shaomin Fu
- Key Laboratory of Green Chemistry &Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
| | - Bo Liu
- Key Laboratory of Green Chemistry &Technology of the Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu
- China
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11
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Jiang YL, Yu HX, Li Y, Qu P, Han YX, Chen JH, Yang Z. Asymmetric Total Synthesis of Pre-schisanartanin C. J Am Chem Soc 2019; 142:573-580. [DOI: 10.1021/jacs.9b11872] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yan-Long Jiang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Hai-Xin Yu
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yong Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Pei Qu
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yi-Xin Han
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Jia-Hua Chen
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Zhen Yang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
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12
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Jin J, Zhao Y, Sze EML, Kothandaraman P, Chan PWH. Chiral Brønsted Acid and Gold Catalyzed Enantioselective Synthesis of 1,8‐Dihydroindeno[2,1‐
b
]pyrroles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801178] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jianwen Jin
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
| | - Yichao Zhao
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
| | - Ella Min Ling Sze
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Prasath Kothandaraman
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Philip Wai Hong Chan
- School of Chemistry Monash University, Clayton Victoria 3800 Australia
- Department of Chemistry University of Warwick Coventry CV4 7AL United Kingdom
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13
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Bulman Page PC, Kinsey FS, Chan Y, Strutt IR, Slawin AMZ, Jones GA. Novel binaphthyl and biphenyl α- and β-amino acids and esters: organocatalysis of asymmetric Diels-Alder reactions. A combined synthetic and computational study. Org Biomol Chem 2018; 16:7400-7416. [PMID: 30259945 DOI: 10.1039/c8ob01795f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Asymmetric catalysis of the Diels-Alder reaction between cyclopentadiene and cinnamaldehydes has been studied using as catalysts a range of novel α- and β-aminoacids and aminoesters with binaphthyl and biphenyl backbones, providing enantioselectivities of up to 62% ee. B3LYP/6-31G* calculations, including free energy corrections, have been carried out on a binaphthyl catalyst example to identify transition state structures and to aid in the identification of major enantiomers. The calculated product ratios agree well with the experimental data; the transition states identified involve preferential approach of cyclopentene along a trajectory adjacent to the acid/ester group. The four lowest energy transition states display a stabilizing dipolar interaction between the carbonyl group oxygen atom and a terminal proton of the diene unit.
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Affiliation(s)
- Philip C Bulman Page
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, UK.
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14
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Liao HH, Hsiao CC, Atodiresei I, Rueping M. Multiple Hydrogen-Bond Activation in Asymmetric Brønsted Acid Catalysis. Chemistry 2018; 24:7718-7723. [DOI: 10.1002/chem.201800677] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Hsuan-Hung Liao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Chien-Chi Hsiao
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Iuliana Atodiresei
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Magnus Rueping
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- King Abdullah University of Science and Technology (KAUST); KAUST Catalysis Center (KCC); Thuwal 23955-69 00 Saudi Arabia
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15
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Jin J, Zhao Y, Gouranourimi A, Ariafard A, Hong Chan PW. Chiral Brønsted Acid Catalyzed Enantioselective Dehydrative Nazarov-Type Electrocyclization of Aryl and 2-Thienyl Vinyl Alcohols. J Am Chem Soc 2018; 140:5834-5841. [PMID: 29631393 DOI: 10.1021/jacs.8b02339] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient chiral Brønsted acid-catalyzed enantioselective dehydrative Nazarov-type electrocyclization (DNE) of electron-rich aryl- and 2-thienyl-β-amino-2-en-1-ols is described. The 4π conrotatory electrocyclization reaction affords access to a wide variety of the corresponding 1 H-indenes and 4 H-cyclopenta[ b]thiophenes in excellent yields of up to 99% and enantiomeric excess (ee) values of up to 99%. Experimental and computational studies based on a proposed intimate contact ion-pair species that is further assisted by hydrogen bonding between the amino group of the substrate cation and chiral catalyst anion provide insight into the observed product enantioselectivities.
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Affiliation(s)
- Jianwen Jin
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
| | - Yichao Zhao
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
| | - Ali Gouranourimi
- School of Physical Sciences-Chemistry , University of Tasmania , Hobart , Tasmania 7001 , Australia
| | - Alireza Ariafard
- School of Physical Sciences-Chemistry , University of Tasmania , Hobart , Tasmania 7001 , Australia
| | - Philip Wai Hong Chan
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia.,Department of Chemistry , University of Warwick , Coventry , CV4 7AL , United Kingdom
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16
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Liu YF, Ji PY, Xu JW, Hu YQ, Liu Q, Luo WP, Guo CC. Transition Metal-Free α-Csp3-H Methylenation of Ketones to Form C═C Bond Using Dimethyl Sulfoxide as Carbon Source. J Org Chem 2017. [DOI: 10.1021/acs.joc.7b00619] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu-Feng Liu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Peng-Yi Ji
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Jing-Wen Xu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Yu-Qun Hu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Qiang Liu
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Wei-Ping Luo
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Can-Cheng Guo
- College of Chemistry
and
Chemical Engineering, Advanced Catalytic Engineering Research Center
of the Ministry of Education, Hunan University, Changsha 410082, China
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17
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18
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Huang X, Liu M, Jasinski JP, Peng B, Zhang W. Recyclable Organocatalysts for a One-Pot Asymmetric Synthesis of 2-Fluorocyclohexanols Bearing Six Contiguous Stereocenters. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700129] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xin Huang
- College of Chemistry and Life Sciences; Zhejiang Normal University; Jinhua 321004 People's Republic of China
| | - Miao Liu
- Department of Chemistry; University of Massachusetts; 100 Morrissey Boulevard Boston, MA 02125 USA
| | - Jerry P. Jasinski
- Department of Chemistry; Keene State College; 229 Main Street Keene, NH 03435 USA
| | - Bo Peng
- College of Chemistry and Life Sciences; Zhejiang Normal University; Jinhua 321004 People's Republic of China
| | - Wei Zhang
- Department of Chemistry; University of Massachusetts; 100 Morrissey Boulevard Boston, MA 02125 USA
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19
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Zhou Y, Lu Y, Hu X, Mei H, Lin L, Liu X, Feng X. Highly diastereo- and enantioselective synthesis of spirooxindole-cyclohexaneamides through N,N′-dioxide/Ni(ii)-catalyzed Diels–Alder reactions. Chem Commun (Camb) 2017; 53:2060-2063. [DOI: 10.1039/c6cc10125a] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New kinds of spirooxindole-cyclohexaneamides were achieved in up to 99% yield, >95 : 5 dr, and 99% ee via N,N′-dioxide/Ni(ii)-catalyzed Diels–Alder reactions.
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Affiliation(s)
- Yuhang Zhou
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yan Lu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xinyue Hu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Hongjiang Mei
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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20
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Nishikawa Y, Nakano S, Tahira Y, Terazawa K, Yamazaki K, Kitamura C, Hara O. Chiral Pyridinium Phosphoramide as a Dual Brønsted Acid Catalyst for Enantioselective Diels–Alder Reaction. Org Lett 2016; 18:2004-7. [DOI: 10.1021/acs.orglett.6b00608] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yasuhiro Nishikawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Saki Nakano
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Yuu Tahira
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Kanako Terazawa
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Ken Yamazaki
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
| | - Chitoshi Kitamura
- Department
of Materials Science, School of Engineering, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga 522-8533, Japan
| | - Osamu Hara
- Faculty
of Pharmacy, Meijo University, 150 Yagotoyama,
Tempaku-ku, Nagoya, Aichi 468-8503, Japan
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21
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Tayama E, Saito S. Regioselective synthesis of secondary 1,3-dienamides by successive eliminations. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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22
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Momiyama N, Funayama K, Noda H, Yamanaka M, Akasaka N, Ishida S, Iwamoto T, Terada M. Hydrogen Bonds-Enabled Design of a C1-Symmetric Chiral Brønsted Acid Catalyst. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02079] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Norie Momiyama
- Institute for
Molecular Science, Okazaki, Aichi 444-8787, Japan
- SOKENDAI (The Graduate School for Advanced Studies), Okazaki, Aichi 444-8787, Japan
| | - Kosuke Funayama
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
- Graduate Research
on Cooperative Education Program of IMS with Tohoku University, Okazaki, Aichi 444-8787, Japan
| | - Hirofumi Noda
- Department
of Chemistry, Faculty of Science, Rikkyo University, Toshima-ku, Tokyo, 171-8501, Japan
| | - Masahiro Yamanaka
- Department
of Chemistry, Faculty of Science, Rikkyo University, Toshima-ku, Tokyo, 171-8501, Japan
| | - Naohiko Akasaka
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Shintaro Ishida
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Takeaki Iwamoto
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Department
of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
- Analytical
Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
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