1
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Toksabay S, Leisegang M, Christ A, Härtl P, Krebs J, Marder TB, Haldar S, Heinze S, Bode M, Krueger A. Controlled Formation of Porous 2D Lattices from C 3 -symmetric Ph 6 -Me-Tribenzotriquinacene-OAc 3. Chemistry 2023; 29:e202203187. [PMID: 36346617 DOI: 10.1002/chem.202203187] [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: 10/12/2022] [Revised: 11/04/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022]
Abstract
The on-surface self-assembly of molecules to form holey nanographenes is a promising approach to control the properties of the resulting 2D lattice. Usually, planar molecules are utilized to prepare flat, structurally confined molecular layers, with only a few recent examples of warped precursors. However, control of the superstructures is limited thus far. Herein, we report the temperature-controlled self-assembly of a bowl-shaped, acetylated C3 -symmetric hexaphenyltribenzotriquinacene derivative on Cu(111). Combining scanning tunneling microscopy (STM) and density functional theory (DFT) confirms the formation of highly differing arrangements starting with π-stacked bowl-to-bowl dimers at low coverage at room temperature via chiral honeycomb structures, an intermediate trigonal superstructure, followed by a fully carbon-based, flattened hexagonal superstructure formed by on-surface deacetylation, which is proposed as a precursor for holey graphene networks with unique defect structures.
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Affiliation(s)
- Sinem Toksabay
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Markus Leisegang
- Physikalisches Institut Experimentelle Physik II, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Andreas Christ
- Physikalisches Institut Experimentelle Physik II, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Patrick Härtl
- Physikalisches Institut Experimentelle Physik II, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Johannes Krebs
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Soumyajyoti Haldar
- Institute of Theoretical Physics and Astrophysics, University of Kiel, Leibnizstrasse 15, 24098, Kiel, Germany
| | - Stefan Heinze
- Institute of Theoretical Physics and Astrophysics, University of Kiel, Leibnizstrasse 15, 24098, Kiel, Germany
| | - Matthias Bode
- Physikalisches Institut Experimentelle Physik II, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Wilhelm Conrad Röntgen-Center for Complex Material Systems (RCCM), Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Anke Krueger
- Institute for Organic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
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2
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Mayr S, Zipse H. Annelated Pyridine Bases for the Selective Acylation of 1,2‐Diols. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Stefanie Mayr
- Ludwig-Maximilians-Universitat Munchen Chemistry GERMANY
| | - Hendrik Zipse
- Ludwig-Maximilians-Universität Department of Chemistry Butenandt-Str. 5-13 81377 München GERMANY
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3
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Zhang RZ, Zhang RX, Wang S, Xu C, Guan W, Wang M. An N-Trifluoromethylation/Cyclization Strategy for Accessing Diverse N-Trifluoromethyl Azoles from Nitriles and 1,3-Dipoles. Angew Chem Int Ed Engl 2022; 61:e202110749. [PMID: 34704326 DOI: 10.1002/anie.202110749] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/27/2021] [Indexed: 01/14/2023]
Abstract
N-Trifluoromethyl azoles are valuable targets in medicinal chemistry, but their synthesis is challenging. Classical preparation of N-CF3 azoles relies on the functional group interconversions but suffers from tedious N-pre-functionalization and unfriendly agents. Introduction of the CF3 onto the nitrogen of heterocycles provides a direct route to such motifs, but the N-trifluoromethylation remains underdeveloped. Reported here is an alternative and scalable cyclization strategy based on NCF3 -containing synthons for constructing N-CF3 azoles. The approach involves the N-trifluoromethylation of nitriles followed by a [3+2] cyclization between resulting N-CF3 nitrilium derivatives and 1,3-dipoles. PhICF3 Cl was an effective CF3 source for the transformation. As a result, a generic platform is established to divergently synthesize N-trifluoromethylated tetrazoles, imidazoles, and 1,2,3-triazoles by using sodium azide, activated methylene isocyanides, and diazo compounds as dipoles.
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Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Shuang Wang
- Institute of Functional of Material, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Wei Guan
- Institute of Functional of Material, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, College of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
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4
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Zhang RZ, Zhang RX, Wang S, Xu C, Guan W, Wang M. An
N
‐Trifluoromethylation/Cyclization Strategy for Accessing Diverse
N
‐Trifluoromethyl Azoles from Nitriles and 1,3‐Dipoles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ru Zhong Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Ru Xue Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Shuang Wang
- Institute of Functional of Material College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Cong Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Wei Guan
- Institute of Functional of Material College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis College of Chemistry Northeast Normal University 5268 Renmin Street Changchun 130024 China
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5
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Bernardo O, González‐Pelayo S, López LA. Synthesis and Applications of Ferrocene‐Fused Nitrogen Heterocycles. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Olaya Bernardo
- Departamento de Química Orgánica e Inorgánica Instituto Universitario de Química Organometálica “Enrique Moles” Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo Julián Clavería 8 33006- Oviedo Spain
| | - Silvia González‐Pelayo
- Laboratorio de Química Orgánica y Farmacéutica Departamento de Ciencias Farmacéuticas Facultad de Farmacia Universidad de Salamanca Campus Miguel de Unamuno 37007- Salamanca Spain
| | - Luis A. López
- Departamento de Química Orgánica e Inorgánica Instituto Universitario de Química Organometálica “Enrique Moles” Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo Julián Clavería 8 33006- Oviedo Spain
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6
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Bashi M, Aliabad HAR, Samsami M. Comparative studies of C 7H 10N 2 pyridine and C 7H 10N 2S pyrrole for optoelectronic applications by mBJ approach. J Mol Model 2021; 27:274. [PMID: 34472003 DOI: 10.1007/s00894-021-04890-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/23/2021] [Indexed: 12/01/2022]
Abstract
The modified Becke-Johnson exchange (mBJ) potential plus the generalized gradient approximation (GGA) correlation are used for the calculation of the optoelectronic properties of the C7H10N2 pyridine and C7H10N2S pyrrole. Electronic band gaps of C7H10N2 pyridine and C7H10N2S pyrrole have been determined to be 4.65 eV and 3.41 eV by band structure spectra, respectively. According to the Penn model, there is an inverse relationship between the band gap value and static dielectric constant along the x-direction. The density of states spectra shows that the p state of S atoms plays a key role in the optical spectra. In the refractive index spectra, the nature of materials changes from linear to nonlinear with superluminal nature in a narrow energy range of 3.9-4.7 eV for C7H10N2S and 5-7.7 eV for C7H10N2. Cauchy parameters are calculated and predicted values are extended in the UV (ultraviolet) and visible regions. Obtained plasmon energies are in close agreement with suitable optical materials such as α-Al2O3 making the material more effective to use in new optical devices.
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Affiliation(s)
- M Bashi
- Department of Physics, Hakim Sabzevari University, 96179-76487, Sabzevar, Iran
| | | | - M Samsami
- Department of Physics, Hakim Sabzevari University, 96179-76487, Sabzevar, Iran
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7
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Antenucci A, Dughera S, Renzi P. Green Chemistry Meets Asymmetric Organocatalysis: A Critical Overview on Catalysts Synthesis. CHEMSUSCHEM 2021; 14:2785-2853. [PMID: 33984187 PMCID: PMC8362219 DOI: 10.1002/cssc.202100573] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/30/2021] [Indexed: 05/30/2023]
Abstract
Can green chemistry be the right reading key to let organocatalyst design take a step forward towards sustainable catalysis? What if the intriguing chemistry promoted by more engineered organocatalysts was carried on by using renewable and naturally occurring molecular scaffolds, or at least synthetic catalysts more respectful towards the principles of green chemistry? Within the frame of these questions, this Review will tackle the most commonly occurring organic chiral catalysts from the perspective of their synthesis rather than their employment in chemical methodologies or processes. A classification of the catalyst scaffolds based on their E factor will be provided, and the global E factor (EG factor) will be proposed as a new green chemistry metric to consider, also, the synthetic route to the catalyst within a given organocatalytic process.
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Affiliation(s)
- Achille Antenucci
- Department of ChemistryUniversity of TurinVia Pietro Giuria, 710125TurinItaly
- NIS Interdeprtmental CentreINSTM Reference CentreUniversity of TurinVia Gioacchino Quarello 15/A10135TurinItaly
| | - Stefano Dughera
- Department of ChemistryUniversity of TurinVia Pietro Giuria, 710125TurinItaly
| | - Polyssena Renzi
- Department of ChemistryUniversity of TurinVia Pietro Giuria, 710125TurinItaly
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8
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Kumar N, Laye C, Robert F, Landais Y. Quinoline‐Based Silylium Ions: Synthesis, Structure and Lewis Acidity. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100604] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nivesh Kumar
- Univ. Bordeaux, CNRS Institut des Sciences Moléculaires (ISM), UMR-5255 33400 Talence France
| | - Claire Laye
- Univ. Bordeaux, CNRS Institut des Sciences Moléculaires (ISM), UMR-5255 33400 Talence France
| | - Frédéric Robert
- Univ. Bordeaux, CNRS Institut des Sciences Moléculaires (ISM), UMR-5255 33400 Talence France
| | - Yannick Landais
- Univ. Bordeaux, CNRS Institut des Sciences Moléculaires (ISM), UMR-5255 33400 Talence France
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9
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Di Francesco D, Dahlstrand C, Löfstedt J, Orebom A, Verendel J, Carrick C, Håkansson Å, Eriksson S, Rådberg H, Wallmo H, Wimby M, Huber F, Federsel C, Backmark M, Samec JSM. Debottlenecking a Pulp Mill by Producing Biofuels from Black Liquor in Three Steps. CHEMSUSCHEM 2021; 14:2414-2425. [PMID: 33851793 PMCID: PMC8251813 DOI: 10.1002/cssc.202100496] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/13/2021] [Indexed: 06/12/2023]
Abstract
By extracting lignin, pulp production can be increased without heavy investments in a new recovery boiler, the typical bottleneck of a pulp mill. The extraction is performed by using 0.20 and 0.15 weight equivalents of CO2 and H2 SO4 respectively. Herein, we describe lignin esterification with fatty acids using benign reagents to generate a lignin ester mixable with gas oils. The esterification is accomplished by activating the fatty acid and lignin with acetic anhydride which can be regenerated from the acetic acid recycled in this reaction. The resulting mass balance ratio is fatty acid/lignin/acetic acid (2 : 1 : 0.1). This lignin ester can be hydroprocessed to generate hydrocarbons in gasoline, aviation, and diesel range. A 300-hour continuous production of fuel was accomplished. By recirculating reagents from both the esterification step and applying a water gas shift reaction on off-gases from the hydroprocessing, a favorable overall mass balance is realized.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Joseph S. M. Samec
- Department of Organic ChemistryStockholm University10691StockholmSweden
- RenFuel ABSturegatan 3810248StockholmSweden
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10
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Marichev KO, Wang K, Greco N, Dong K, Chen J, Lei J, Doyle MP. Strain-Induced Nucleophilic Ring Opening of Donor-Acceptor Cyclopropenes for Synthesis of Monosubstituted Succinic Acid Derivatives. Chemistry 2021; 27:340-347. [PMID: 32853426 DOI: 10.1002/chem.202003427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/11/2020] [Indexed: 01/05/2023]
Abstract
1,2,3-Trisubstituted donor-acceptor cyclopropenes (DACPs) generated in situ from enoldiazo compounds react with nucleophiles to form α-substituted succinic acid derivatives in high yields. Initial dirhodium(II) carboxylate catalysis rapidly converts enoldiazo-acetates or -acetamides to DACPs that undergo catalyst-free Favorskii ring opening with amines, and also with anilines, alcohols, and thiols, when facilitated by catalytic amounts of 4-dimethylaminopyridine (DMAP). This methodology provides easy access to mixed esters and amides of monosubstituted succinic acids, including derivatives of naturally occurring compounds. It also affords dihydrazide, dihydroxamic acid, and diamide derivatives, as well as α-substituted tetrahydropyridazine-3,6-diones in high yields. Attempts to generate optically enriched DACPs were not successful because their populations having the R and S configurations formed with a chiral dirhodium catalyst are quite similar, and the loss of enantiocontrol likely originates from the DACP ring forming step which is reversible with its intermediate metal carbene.
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Affiliation(s)
- Kostiantyn O Marichev
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, 78249, USA
| | - Kan Wang
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, 78249, USA
| | - Nicole Greco
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, 78249, USA
| | - Kuiyong Dong
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, 78249, USA
| | - Jinzhou Chen
- School of Pharmaceutical Science, Sun Yat-Sen University, Guang Zhou, 510006, P. R. China
| | - Jinping Lei
- School of Pharmaceutical Science, Sun Yat-Sen University, Guang Zhou, 510006, P. R. China
| | - Michael P Doyle
- Department of Chemistry, The University of Texas at San Antonio One UTSA Circle, San Antonio, TX, 78249, USA
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11
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Liu J, Fujita H, Kitamura M, Shimada D, Kunishima M. Development of a triazinedione-based dehydrative condensing reagent containing 4-(dimethylamino)pyridine as an acyl transfer catalyst. Org Biomol Chem 2021; 19:4712-4719. [PMID: 33969372 DOI: 10.1039/d1ob00450f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new triazinedione-based reagent, (N,N'-dialkyl)triazinedione-4-(dimethylamino)pyridine (ATD-DMAP) was developed for the operationally simple dehydrative condensation of carboxylic acids. This reagent comprises an ATD core and DMAP as the leaving group, which is liberated into the reaction system to accelerate acyl transfer reactions. Upon adding ATD-DMAP to a mixture of carboxylic acids and alcohols in the presence of an amine base, the corresponding esters were formed rapidly at room temperature. Moreover, dehydrative condensation between carboxylic acids and amines using ATD-DMAP proceeded in high yield.
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Affiliation(s)
- Jie Liu
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Hikaru Fujita
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Masanori Kitamura
- Faculty of Pharmaceutical Sciences, Matsuyama University, 4-2, Bunkyo-cho, Matsuyama 790-8578, Japan
| | - Daichi Shimada
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
| | - Munetaka Kunishima
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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12
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Yamashita K, Kume Y, Ashibe S, Puspita CAD, Tanigawa K, Michihata N, Wakamori S, Ikeuchi K, Yamada H. Total Synthesis of Mallotusinin. Chemistry 2020; 26:16408-16421. [PMID: 32614090 DOI: 10.1002/chem.202002753] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Indexed: 11/11/2022]
Abstract
The total synthesis of mallotusinin, which bears a tetrahydroxydibenzofuranoyl (THDBF) bridge between the 2-oxygen and 4-oxygen of glucose on corilagin with a 3,6-O-(R)-hexahydroxydiphenoyl (HHDP) bridge, is described. The key features of the total synthesis are: 1) improvements of our previously reported method to synthesize corilagin; 2) establishment of the THDBF skeleton via an unusual intramolecular SN Ar reaction of an HHDP analogue, and 3) the application of a two-step bislactonization strategy for a HHDP bridge construction into the 2,4-O-THDBF bridge. Oxidative phenol coupling of 1,2,4-orthoacetyl-3,6-di-(4-O-benzylgalloyl)-α-d-glucopyranose and the orthoester cleavage of the coupling product without the pyranose-furanose ring transformation are key reactions for the improved synthesis of corilagin, which enabled the adequate supply of a corilagin precursor that was required to develop the mallotusinin synthesis. These established methods are expected to help develop the synthesis of other ellagitannins with a bridge between the two oxygens of corilagin.
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Affiliation(s)
- Kohei Yamashita
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Yuji Kume
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Seiya Ashibe
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Cicilia A D Puspita
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Kotaro Tanigawa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Naoki Michihata
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Shinnosuke Wakamori
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
| | - Kazutada Ikeuchi
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, 060-0810, Japan
| | - Hidetoshi Yamada
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, 669-1337, Japan
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13
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Zhao W, Lv Y, Li J, Feng Z, Ni Y, Hadjichristidis N. A Synthetic Method for Site‐Specific Functionalized Polypeptides: Metal‐Free, Highly Active, and Selective at Room Temperature. Angew Chem Int Ed Engl 2020; 60:889-895. [DOI: 10.1002/anie.202009316] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/31/2020] [Indexed: 01/23/2023]
Affiliation(s)
- Wei Zhao
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yanfeng Lv
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Ji Li
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Zihao Feng
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yonghao Ni
- Department of Chemical Engineering University of New Brunswick, Fredericton New Brunswick E3B 5A3 Canada
| | - Nikos Hadjichristidis
- KAUST Catalysis Center Polymer Synthesis Laboratory Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Kingdom of Saudi Arabia
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14
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Zhao W, Lv Y, Li J, Feng Z, Ni Y, Hadjichristidis N. A Synthetic Method for Site‐Specific Functionalized Polypeptides: Metal‐Free, Highly Active, and Selective at Room Temperature. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Wei Zhao
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yanfeng Lv
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Ji Li
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Zihao Feng
- College of Bioresources Chemical and Materials Engineering Shaanxi University of Science and Technology Xi'an 710021 People's Republic of China
| | - Yonghao Ni
- Department of Chemical Engineering University of New Brunswick, Fredericton New Brunswick E3B 5A3 Canada
| | - Nikos Hadjichristidis
- KAUST Catalysis Center Polymer Synthesis Laboratory Physical Sciences and Engineering Division King Abdullah University of Science and Technology (KAUST) Thuwal 23955 Kingdom of Saudi Arabia
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15
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Otake Y, Shibata Y, Hayashi Y, Kawauchi S, Nakamura H, Fuse S. N‐Methylated Peptide Synthesis via Generation of an Acyl N‐Methylimidazolium Cation Accelerated by a Brønsted Acid. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002106] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Yuma Otake
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
- School of Life Science and Technology Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Yusuke Shibata
- School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Yoshihiro Hayashi
- School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Susumu Kawauchi
- School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science Institute of Innovative Research Tokyo Institute of Technology 4259 Nagatsuta-cho, Midori-ku Yokohama 226-8503 Japan
| | - Shinichiro Fuse
- Department of Basic Medicinal Sciences Graduate School of Pharmaceutical Sciences Nagoya University Furo-cho, Chikusa-ku Nagoya 464-8601 Japan
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16
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Otake Y, Shibata Y, Hayashi Y, Kawauchi S, Nakamura H, Fuse S. N-Methylated Peptide Synthesis via Generation of an Acyl N-Methylimidazolium Cation Accelerated by a Brønsted Acid. Angew Chem Int Ed Engl 2020; 59:12925-12930. [PMID: 32274844 DOI: 10.1002/anie.202002106] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Indexed: 12/31/2022]
Abstract
The development of a robust amide-bond formation remains a critical aspect of N-methylated peptide synthesis. In this study, we synthesized a variety of dipeptides in high yields, without severe racemization, from equivalent amounts of amino acids. Highly reactive N-methylimidazolium cation species were generated in situ to accelerate the amidation. The key to success was the addition of a strong Brønsted acid. The developed amidation enabled the synthesis of a bulky peptide with a higher yield in a shorter amount of time compared with the results of conventional amidation. In addition, the amidation can be performed by using either a microflow reactor or a conventional flask. The first total synthesis of naturally occurring bulky N-methylated peptides, pterulamides I-IV, was achieved. Based on experimental results and theoretical calculations, we speculated that a Brønsted acid would accelerate the rate-limiting generation of acyl imidazolium cations from mixed carbonic anhydrides.
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Affiliation(s)
- Yuma Otake
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan.,School of Life Science and Technology, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Yusuke Shibata
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Yoshihiro Hayashi
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Susumu Kawauchi
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8552, Japan
| | - Hiroyuki Nakamura
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Shinichiro Fuse
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
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17
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Trujillo C, Litvajova M, Cronin SA, Craig R, Connon SJ. The Steglich Rearrangement of 2‐Oxindole Derivatives Promoted by Anion‐based Nucleophilic Catalysis. ChemCatChem 2019. [DOI: 10.1002/cctc.201900756] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Cristina Trujillo
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Mili Litvajova
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Sarah A. Cronin
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Ryan Craig
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
| | - Stephen J. Connon
- School of Chemistry TrinityBiomedical Sciences Institute Trinity College Dublin 152-160 Pearse Street Dublin 2 Ireland
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18
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Hu L, Zhao Y. A Bait‐and‐Switch Method for the Construction of Artificial Esterases for Substrate‐Selective Hydrolysis. Chemistry 2019; 25:7702-7710. [DOI: 10.1002/chem.201900560] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Lan Hu
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
| | - Yan Zhao
- Department of ChemistryIowa State University Ames IA 50011-3111 USA
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19
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Kleoff M, Suhr S, Sarkar B, Zimmer R, Reissig H, Marin‐Luna M, Zipse H. Efficient Syntheses of New Super Lewis Basic Tris(dialkylamino)‐Substituted Terpyridines and Comparison of Their Methyl Cation Affinities. Chemistry 2019; 25:7526-7533. [DOI: 10.1002/chem.201900450] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/27/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Merlin Kleoff
- Institut für Chemie und BiochemieFreie Universität Berlin Takustr. 3 14195 Berlin Germany
| | - Simon Suhr
- Institut für Chemie und BiochemieFreie Universität BerlinAnorganische Chemie Fabeckstr. 34–36 14195 Berlin Germany
| | - Biprajit Sarkar
- Institut für Chemie und BiochemieFreie Universität BerlinAnorganische Chemie Fabeckstr. 34–36 14195 Berlin Germany
| | - Reinhold Zimmer
- Institut für Chemie und BiochemieFreie Universität Berlin Takustr. 3 14195 Berlin Germany
| | - Hans‐Ulrich Reissig
- Institut für Chemie und BiochemieFreie Universität Berlin Takustr. 3 14195 Berlin Germany
| | - Marta Marin‐Luna
- Department ChemieLudwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Germany
| | - Hendrik Zipse
- Department ChemieLudwig-Maximilians-Universität München Butenandtstr. 5–13 81377 München Germany
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20
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Xie MS, Zhang YF, Shan M, Wu XX, Qu GR, Guo HM. Chiral DMAP-N-oxides as Acyl Transfer Catalysts: Design, Synthesis, and Application in Asymmetric Steglich Rearrangement. Angew Chem Int Ed Engl 2019; 58:2839-2843. [PMID: 30653794 DOI: 10.1002/anie.201812864] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 12/25/2018] [Indexed: 12/21/2022]
Abstract
A DMAP-N-oxide, featuring an α-amino acid as the chiral source, was developed, synthesized and applied in asymmetric Steglich rearrangement. A series of O-acylated azlactones afforded C-acylated azlactones possessing a quaternary stereocenter in high yields (up to 97 % yield) and excellent enantioselectivities (up to 97 % ee). Compared to the widespread use of pyridine nitrogen, which serves as the nucleophilic site in the asymmetric acyl transfer reaction, we discovered that chiral DMAP-N-oxides, in which the oxygen now acts as the nucleophilic site, are efficient acyl transfer catalysts. Our finding might open a new door for the development of chiral DMAP-N-oxides for asymmetric acyl transfer reactions.
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Affiliation(s)
- Ming-Sheng Xie
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Ye-Fei Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Meng Shan
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiao-Xia Wu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Gui-Rong Qu
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Hai-Ming Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
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21
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Xie M, Zhang Y, Shan M, Wu X, Qu G, Guo H. Chiral DMAP‐
N
‐oxides as Acyl Transfer Catalysts: Design, Synthesis, and Application in Asymmetric Steglich Rearrangement. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Ming‐Sheng Xie
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Ye‐Fei Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Meng Shan
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Xiao‐Xia Wu
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Gui‐Rong Qu
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Hai‐Ming Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
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22
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23
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Tsivgoulis GM, Kordopati GG, Vachliotis DG, Ioannou PV. The Reaction of Diethylthiophosphinyl Iodide, Et 2P(S)I, with Nucleophiles. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Yan YL, Guo JR, Liang CF. Sequential Dy(OTf) 3 -Catalyzed Solvent-Free Per-O-Acetylation and Regioselective Anomeric De-O-Acetylation of Carbohydrates. Chem Asian J 2017; 12:2471-2479. [PMID: 28688169 DOI: 10.1002/asia.201700867] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 07/04/2017] [Indexed: 11/06/2022]
Abstract
Dysprosium(III) trifluoromethanesulfonate-catalyzed per-O-acetylation and regioselective anomeric de-O-acetylation of carbohydrates can be tuned by adjusting the reaction medium. In this study, the per-O-acetylation of unprotected sugars by using a near-stoichiometric amount of acetic anhydride under solvent-free conditions resulted in the exclusive formation of acetylated saccharides as anomeric mixtures, whereas anomeric de-O-acetylation in methanol resulted in a moderate-to-excellent yield. Reactions with various unprotected monosaccharides or disaccharides followed by a semi-one-pot sequential conversion into the corresponding acetylated glycosyl hemiacetal also resulted in high yields. Furthermore, the obtained hemiacetals could be successfully transformed into trichloroimidates after Dy(OTf)3 -catalyzed glycosylation.
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Affiliation(s)
- Yi-Ling Yan
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
| | - Jiun-Rung Guo
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
| | - Chien-Fu Liang
- Department of Chemistry, National Chung Hsing University, 145 Xingda Rd., South Dist., Taichung City, 402, Taiwan
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25
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Schröder J, Himmel D, Böttcher T. 2,6-Bis(diazaboryl)pyridine: A Superbasic Sterically Demanding Pyridine Ligand. Chemistry 2017. [PMID: 28643874 DOI: 10.1002/chem.201702890] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Herein a convenient one-pot route to a sterically demanding superbasic pyridine is presented. Functionalization of the 2- and 6-positions with the strongly σ-donating boryl-groups shifts the calculated gas phase basicity of the pyridine nitrogen atom to 1012 kJ mol-1 , which outperforms the "proton sponge" 1,8-bis(dimethylamino)naphthalene (996 kJ mol-1 ). The diazaboryl groups are oriented orthogonally to the pyridine ring and do not block the N-position, which resembles the geometry of commonly used N-heterocyclic carbenes. This allows the substituted pyridine to be used as a neutral N-donor ligand in coordination chemistry that is demonstrated herein with the Lewis adducts of haloboranes. Contrary to NHCs, which can form extraordinarily stable adducts, the pyridine ligand is intended to act as a weaker-coordinating alternative and could allow for alternative ligand chemistry.
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Affiliation(s)
- Jan Schröder
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
| | - Daniel Himmel
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
| | - Tobias Böttcher
- Institut für Anorganische und Analytische Chemie, Universität Freiburg, Albertstrasse 19, 79104, Freiburg, Germany
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26
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Panahi F, Fareghi-Alamdari R, Khajeh Dangolani S, Khalafi-Nezhad A, Golestanzadeh M. Graphene GraftedN-Methyl-4-pyridinamine (G-NMPA): An Efficient Heterogeneous Organocatalyst for Acetylation of Alcohols. ChemistrySelect 2017. [DOI: 10.1002/slct.201601578] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Farhad Panahi
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; Tehran Iran
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Reza Fareghi-Alamdari
- Faculty of Chemistry & Chemical Engineering; Malek-Ashtar University of Technology; Tehran Iran
| | | | - Ali Khalafi-Nezhad
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Mohsen Golestanzadeh
- Department of Organic Chemistry, Faculty of Chemistry; University of Kashan; Kashan Iran
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27
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Tong ML, Huber F, Taghuo Kaptouom ES, Cellnik T, Kirsch SF. Enhanced site-selectivity in acylation reactions with substrate-optimized catalysts on solid supports. Chem Commun (Camb) 2017; 53:3086-3089. [DOI: 10.1039/c7cc00655a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A concept for site-selective acylation is presented, using substrate-optimized DMAP–peptide conjugates on a solid support.
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Affiliation(s)
- My Linh Tong
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | - Florian Huber
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | | | - Torsten Cellnik
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
| | - Stefan F. Kirsch
- Organic Chemistry
- Bergische Universität Wuppertal
- 42119 Wuppertal
- Germany
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28
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Panahi F, Dangolani SK, Khalafi-Nezhad A. Synthesis of a Novel Magnetic Reusable Organocatalyst Based on 4-Dialkylaminopyridines for Acyl Transformations. ChemistrySelect 2016. [DOI: 10.1002/slct.201600824] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Farhad Panahi
- Department of Chemistry; College of Sciences; Shiraz 71454, Iran Iran
- Department of Polymer Engineering and Color Technology; Amirkabir University of Technology; Tehran Iran
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29
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Abstract
The acylation of alcohols catalyzed by N,N-dimethylamino pyridine (DMAP) is, despite its widespread use, sometimes confronted with substrate-specific problems: For example, target compounds with multiple hydroxy groups may show insufficient selectivity for one hydroxyl, and the resulting product mixtures are hardly separable. Here we describe a concept that aims at tailor-made catalysts for the site-specific acylation. To this end, we introduce a catalyst library where each entry is constructed by connecting a variable and readily tuned peptide scaffold with a catalytically active unit based on DMAP. For selected examples, we demonstrate how library screening leads to the identification of optimized catalysts, and the substrates of interest can be converted with a markedly enhanced site-selectivity compared with only DMAP. Furthermore, substrate-optimized catalysts of this type can be used to selectively convert "their" substrate in the presence of structurally similar compounds, an important requisite for reactions with mixtures of substances.
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Affiliation(s)
- Florian Huber
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Stefan F Kirsch
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany.
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30
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Wende RC, Seitz A, Niedek D, Schuler SMM, Hofmann C, Becker J, Schreiner PR. The Enantioselective Dakin-West Reaction. Angew Chem Int Ed Engl 2016; 55:2719-23. [DOI: 10.1002/anie.201509863] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/06/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Raffael C. Wende
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Alexander Seitz
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Dominik Niedek
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Sören M. M. Schuler
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Christine Hofmann
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
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31
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Wende RC, Seitz A, Niedek D, Schuler SMM, Hofmann C, Becker J, Schreiner PR. The Enantioselective Dakin-West Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201509863] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Raffael C. Wende
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Alexander Seitz
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Dominik Niedek
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Sören M. M. Schuler
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Christine Hofmann
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry; Justus-Liebig University; 35392 Giessen Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry; Justus-Liebig University; 35392 Giessen Germany
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32
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Podolan G, Jungk P, Lentz D, Zimmer R, Reissig HU. Studies on the Synthesis of Specifically Fluorinated 4-Amino- pyridine Derivatives by Regioselective Nucleophilic Aromatic Substitution and Catalytic Hydrodefluorination. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500393] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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33
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Mennenga T, Dorn J, Menzel JP, Ritter H. Polymethacrylates containing a 4-amino-pyridyl derivative covalently attached as effective catalysts in acylation chemistry: self-activation by neighboring group effects. POLYM INT 2015. [DOI: 10.1002/pi.4959] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thiemo Mennenga
- Heinrich-Heine-Universität Düsseldorf; Institut für Organische Chemie und Makromolekulare Chemie; Universitätsstrasse 1 40225 Düsseldorf Germany
| | - Jonathan Dorn
- Heinrich-Heine-Universität Düsseldorf; Institut für Organische Chemie und Makromolekulare Chemie; Universitätsstrasse 1 40225 Düsseldorf Germany
| | - Jan-Philipp Menzel
- Heinrich-Heine-Universität Düsseldorf; Institut für Organische Chemie und Makromolekulare Chemie; Universitätsstrasse 1 40225 Düsseldorf Germany
| | - Helmut Ritter
- Heinrich-Heine-Universität Düsseldorf; Institut für Organische Chemie und Makromolekulare Chemie; Universitätsstrasse 1 40225 Düsseldorf Germany
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34
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Okuno Y, Isomura S, Kamakura T, Sano F, Tamahori K, Goto T, Hayashida T, Kitagawa Y, Fukuhara A, Takeda K. Dimethylaminopyridine-supported graft polymer catalyst and its flow system. CHEMSUSCHEM 2015; 8:1711-1715. [PMID: 25855359 DOI: 10.1002/cssc.201500092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Indexed: 06/04/2023]
Abstract
A new heterogeneous organocatalyst, graft polymer supported dimethylaminopyridine (g-DMAP), is developed. This catalyst has a flexible structure and comprises DMAP anchored to the polyethylene-graft-polyacrylic acid (PE-g-PAA). It exhibits higher activity than DMAP supported on polystyrene cross-linked with divinylbenzene and can be recovered in batch mode acetylation. The activity and stability of this catalyst allow its application in continuous flow systems. Continuous acetylation proceeds with excellent conversion, and a turnover number of 560 can be achieved using g-DMAP. Parallel fixed bed reactors were used to scale up the synthesis of this continuous flow system. Eight parallel fixed bed reactors displayed excellent conversion.
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Affiliation(s)
- Yoshinori Okuno
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Shigeki Isomura
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Takahiro Kamakura
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Fumiaki Sano
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Kaoru Tamahori
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Takahiro Goto
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Takahiro Hayashida
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Yuuichi Kitagawa
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Ami Fukuhara
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan)
| | - Kazuyoshi Takeda
- Yokohama University of Pharmacy, Department of Medicinal Chemistry, 601 Matano-cho Totsuka-ku, Yokohama 245-0066 (Japan).
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35
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Mesas-Sánchez L, Dinér P. A Mechanistic Investigation of the Kinetic Resolution of Secondary Aromatic Alcohols Using a Ferrocene-Based Planar Chiral 4-(Dimethylamino)pyridine Catalyst. Chemistry 2015; 21:5623-31. [DOI: 10.1002/chem.201405793] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Indexed: 11/12/2022]
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36
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Li Y, Su X, Zhou W, Li W, Zhang J. Amino Acid Derived Phosphine-Catalyzed Enantioselective 1,4-Dipolar Spiroannulation of Cyclobutenones and Isatylidenemalononitrile. Chemistry 2015; 21:4224-8. [DOI: 10.1002/chem.201406475] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Indexed: 12/16/2022]
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37
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Petersen R, Le Quement ST, Nielsen TE. Synthesis of a natural product-like compound collection through oxidative cleavage and cyclization of linear peptides. Angew Chem Int Ed Engl 2014; 53:11778-82. [PMID: 25214457 DOI: 10.1002/anie.201405747] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Indexed: 11/08/2022]
Abstract
Massive efforts in molecular library synthesis have strived for the development of synthesis methodology which systematically delivers natural product-like compounds of high spatial complexity. Herein, we present a conceptually simple approach that builds on the power of solid-phase peptide synthesis to assemble precursor peptides (oligomers) designed to undergo oxidative cascade reactions. By harnessing the structural side-chain diversity and inherent stereochemical features offered by readily available amino acids (monomers), a proof-of-concept collection of 54 skeletally and stereochemically diverse compounds was generated, and selected compounds were elaborated into isoform-selective metalloprotease inhibitors.
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Affiliation(s)
- Rico Petersen
- Department of Chemistry, Technical University of Denmark, Kemitorvet, Building 201, 2800 Kgs. Lyngby (Denmark)
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Büchert M, Steenbock T, Lukaschek C, Wolff MC, Herrmann C, Heck J. 2,2′-Bipyridine-Based Dendritic Structured Compounds for Second Harmonic Generation. Chemistry 2014; 20:14351-61. [DOI: 10.1002/chem.201404001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Indexed: 11/07/2022]
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Petersen R, Le Quement ST, Nielsen TE. Synthesis of a Natural Product-Like Compound Collection through Oxidative Cleavage and Cyclization of Linear Peptides. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ren B, Rahm M, Zhang X, Zhou Y, Dong H. Regioselective Acetylation of Diols and Polyols by Acetate Catalysis: Mechanism and Application. J Org Chem 2014; 79:8134-42. [DOI: 10.1021/jo501343x] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Bo Ren
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Martin Rahm
- Department
of Chemistry and Chemical Biology, Cornell University, Baker Laboratory, Ithaca 14853, New York, United States
- Department
of Applied Physical Chemistry, KTH-Royal Institute of Technology, Teknikringen 30, 10044 Stockholm, Sweden
| | - Xiaoling Zhang
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Yixuan Zhou
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
| | - Hai Dong
- Key Laboratory for Large-Format Battery Materials and System, Ministry of Education, School of Chemistry & Chemical Engineering, Huazhong University of Science & Technology, Luoyu Road 1037, Wuhan 430074, People’s Republic of China
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Kamata K, Sugahara K, Ishimoto R, Nojima S, Okazaki M, Matsumoto T, Mizuno N. Highly Selective Epoxidation of Cycloaliphatic Alkenes with Aqueous Hydrogen Peroxide Catalyzed by [PO4{WO(O2)2}4]3−/Imidazole. ChemCatChem 2014. [DOI: 10.1002/cctc.201402268] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hommes P, Fischer C, Lindner C, Zipse H, Reissig HU. Unprecedented Strong Lewis Bases-Synthesis and Methyl Cation Affinities of Dimethylamino-Substituted Terpyridines. Angew Chem Int Ed Engl 2014; 53:7647-51. [DOI: 10.1002/anie.201403403] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Indexed: 11/08/2022]
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Hommes P, Fischer C, Lindner C, Zipse H, Reißig HU. Extrem starke Lewis-Basen - Synthese und Methylkationaffinitäten von Dimethylamino-substituierten Terpyridinen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403403] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Hsieh HW, Davis RA, Hoch JA, Gervay-Hague J. Two-step functionalization of oligosaccharides using glycosyl iodide and trimethylene oxide and its applications to multivalent glycoconjugates. Chemistry 2014; 20:6444-54. [PMID: 24715520 PMCID: PMC4497529 DOI: 10.1002/chem.201400024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Indexed: 11/05/2022]
Abstract
Oligosaccharide conjugates, such as glycoproteins and glycolipids, are potential chemotherapeutics and also serve as useful tools for understanding the biological roles of carbohydrates. With many modern isolation and synthetic technologies providing access to a wide variety of free sugars, there is increasing need for general methodologies for carbohydrate functionalization. Herein, we report a two-step methodology for the conjugation of per-O-acetylated oligosaccharides to functionalized linkers that can be used for various displays. Oligosaccharides obtained from both synthetic and commercial sources were converted to glycosyl iodides and activated with I2 to form reactive donors that were subsequently trapped with trimethylene oxide to form iodopropyl conjugates in a single step. The terminal iodide served as a chemical handle for further modification. Conversion into the corresponding azide followed by copper-catalyzed azide-alkyne cycloaddition afforded multivalent glycoconjugates of Gb3 for further investigation as anti-cancer therapeutics.
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Affiliation(s)
- Hsiao-Wu Hsieh
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis, CA 95616 (USA), Fax: (+ 1)530-754-6915
| | - Ryan A. Davis
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis, CA 95616 (USA), Fax: (+ 1)530-754-6915
| | - Jessica A. Hoch
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis, CA 95616 (USA), Fax: (+ 1)530-754-6915
| | - Jacquelyn Gervay-Hague
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis, CA 95616 (USA), Fax: (+ 1)530-754-6915
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Podolan G, Lentz D, Reißig HU. Selektive katalytische Hydrodefluorierung als Schlüsselschritt zur Synthese bisher unzugänglicher Aminopyridinderivate. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301927] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Podolan G, Lentz D, Reissig HU. Selective Catalytic Hydrodefluorination as a Key Step for the Synthesis of Hitherto Inaccessible Aminopyridine Derivatives. Angew Chem Int Ed Engl 2013; 52:9491-4. [DOI: 10.1002/anie.201301927] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Indexed: 11/07/2022]
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Nishino R, Furuta T, Kan K, Sato M, Yamanaka M, Sasamori T, Tokitoh N, Kawabata T. Investigation of the Carboxylate Position during the Acylation Reaction Catalyzed by Biaryl DMAP Derivatives with an Internal Carboxylate. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nishino R, Furuta T, Kan K, Sato M, Yamanaka M, Sasamori T, Tokitoh N, Kawabata T. Investigation of the Carboxylate Position during the Acylation Reaction Catalyzed by Biaryl DMAP Derivatives with an Internal Carboxylate. Angew Chem Int Ed Engl 2013; 52:6445-9. [DOI: 10.1002/anie.201300665] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/18/2013] [Indexed: 11/05/2022]
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Tandon R, Unzner T, Nigst TA, De Rycke N, Mayer P, Wendt B, David ORP, Zipse H. Annelated Pyridines as Highly Nucleophilic and Lewis Basic Catalysts for Acylation Reactions. Chemistry 2013; 19:6435-42. [DOI: 10.1002/chem.201204452] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Indexed: 11/11/2022]
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