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Al Shehimy S, Frath D, Dumont E, Chevallier F, Bucher C. Synthesis and Electrochemistry of Free‐Base Porphyrins Bearing Trifluoromethyl meso‐Substituents. ChemElectroChem 2022. [DOI: 10.1002/celc.202101604] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shaymaa Al Shehimy
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie 46, Allée d'Italie 69364 Lyon FRANCE
| | - Denis Frath
- ENS de Lyon: Ecole normale superieure de Lyon laboratoire de Chimie-UMR 5182 46, Allée d'Italie 69364 Lyon FRANCE
| | - Elise Dumont
- ENS de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie 46, Allée d'Italie 69343 Lyon FRANCE
| | - Floris Chevallier
- École normale supérieure de Lyon: Ecole normale superieure de Lyon Laboratoire de Chimie 46, Allée d'Italie 69343 Lyon FRANCE
| | - Christophe Bucher
- Ecole normale superieure de Lyon Laboratoire de Chimie-UMR 5182 46, Allée d'Italie 69364 Lyon FRANCE
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2
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Dub PA, Batrice RJ, Gordon JC, Scott BL, Minko Y, Schmidt JG, Williams RF. Engineering Catalysts for Selective Ester Hydrogenation. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.9b00559] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Rami J. Batrice
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - John C. Gordon
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Brian L. Scott
- Materials and Physics Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Yury Minko
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Jurgen G. Schmidt
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Robert F. Williams
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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Funabiki K, Hayakawa A, Kani R, Inuzuka T, Kubota Y. One-Pot and Reducible-Functional-Group-Tolerant Synthesis of α-Aryl- and α-Heteroaryl-α-Trifluoromethyl Alcohols via Tandem Trifluoroacetylation and MPV Type Reduction. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Ayaka Hayakawa
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Ryunosuke Kani
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Toshiyasu Inuzuka
- Division of Instrumental Analysis; Life Science Research Center; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
| | - Yashuhiro Kubota
- Department of Chemistry and Biomolecular Science; Gifu University; 1-1 Yanagido 501-1193 Gifu Japan
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Effect of solvent polarity on the regioselective hydroxyalkylation of indole with trifluoroacetaldehyde hemiacetals. Struct Chem 2019. [DOI: 10.1007/s11224-019-01386-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Heravi MM, Zadsirjan V, Heydari M, Masoumi B. Organocatalyzed Asymmetric Friedel‐Crafts Reactions: An Update. CHEM REC 2019. [DOI: 10.1002/tcr.201800190] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Majid M. Heravi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Vahideh Zadsirjan
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Masumeh Heydari
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Baharak Masoumi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
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Ramanjaneyulu BT, Mahesh S, Vijaya Anand R. N-Heterocyclic Carbene Catalyzed Highly Chemoselective Intermolecular Crossed Acyloin Condensation of Aromatic Aldehydes with Trifluoroacetaldehyde Ethyl Hemiacetal. Org Lett 2014; 17:6-9. [DOI: 10.1021/ol502581b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bandaru T. Ramanjaneyulu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector
81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
| | - Sriram Mahesh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector
81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector
81, Knowledge City, S. A. S. Nagar, Manauli (PO), Punjab − 140306, India
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Azofra LM, Alkorta I, Elguero J. A theoretical study of hemiacetal formation from the reaction of methanol with derivatives of CX3
CHO (X = H, F, Cl, Br and I). J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Ibon Alkorta
- IQM-CSIC; C/Juan de la Cierva, 3 28006 Madrid Spain
| | - José Elguero
- IQM-CSIC; C/Juan de la Cierva, 3 28006 Madrid Spain
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Török B, Sood A, Bag S, Kulkarni A, Borkin D, Lawler E, Dasgupta S, Landge S, Abid M, Zhou W, Foster M, LeVine H, Török M. Structure-activity relationships of organofluorine inhibitors of β-amyloid self-assembly. ChemMedChem 2012; 7:910-9. [PMID: 22351619 PMCID: PMC4848461 DOI: 10.1002/cmdc.201100569] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Revised: 01/30/2012] [Indexed: 12/22/2022]
Abstract
A broad group of structurally diverse small organofluorine compounds were synthesized and evaluated as inhibitors of β-amyloid (Aβ) self-assembly. The main goal was to generate a diverse library of compounds with the same functional group and to observe general structural features that characterize inhibitors of Aβ oligomer and fibril formation, ultimately identifying structures for further focused inhibitor design. The common structural motifs in these compounds are CF(3) -C-OH and CF(3) -C-NH groups that were proposed to be binding units in our previous studies. A broad range of potential small-molecule inhibitors were synthesized by combining various carbocyclic and heteroaromatic rings with an array of substituents, generating a total of 106 molecules. The compounds were tested by standard methods such as thioflavin-T fluorescence spectroscopy for monitoring fibril formation, biotinyl Aβ(1-42) single-site streptavidin-based assays for observing oligomer formation, and atomic force microscopy for morphological studies. These assays revealed a number of structures that show significant inhibition against either Aβ fibril or oligomer formation. A detailed analysis of the structure-activity relationship of anti-fibril and -oligomer properties is provided. These data present further experimental evidence for the distinct nature of fibril versus oligomer formation and indicate that the interaction of the Aβ peptide with chiral small molecules is not stereospecific in nature.
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Affiliation(s)
- Béla Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Abha Sood
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Seema Bag
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Aditya Kulkarni
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Dmitry Borkin
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Elizabeth Lawler
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Sujaya Dasgupta
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Shainaz Landge
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Mohammed Abid
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Weihong Zhou
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Michelle Foster
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
| | - Harry LeVine
- Department of Molecular and Cellular Biochemistry, Chandler School of Medicine and Center on Aging, University of Kentucky, Lexington, KY 40536 (USA)
| | - Marianna Török
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Blvd, Boston, MA 02125 (USA)
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Borkin DA, Landge SM, Török B. Enantioselective Friedel-Crafts reaction of indoles with trifluoroacetaldehyde catalyzed by Cinchona alkaloids. Chirality 2011; 23:612-6. [DOI: 10.1002/chir.20982] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Accepted: 05/17/2011] [Indexed: 11/07/2022]
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Aoki S, Kawasaki-Takasuka T, Yamazaki T. Utilization of perfluoroalkanoate-derived aluminium acetals as the convenient fluorinated aldehyde precursors. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nie J, Guo HC, Cahard D, Ma JA. Asymmetric construction of stereogenic carbon centers featuring a trifluoromethyl group from prochiral trifluoromethylated substrates. Chem Rev 2010; 111:455-529. [PMID: 21117644 DOI: 10.1021/cr100166a] [Citation(s) in RCA: 876] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jing Nie
- Department of Chemistry, Tianjin University, China
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Murat-Onana ML, Berini C, Minassian F, Pelloux-Léon N, Denis JN. An efficient method for the synthesis of unsymmetrical 2,2'-bis(pyrrolyl)alkanes. Org Biomol Chem 2010; 8:2204-11. [PMID: 20401397 DOI: 10.1039/c001800g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new strategy for the preparation of unsymmetrical 2,2'-bis(pyrrolyl)alkanes has been developed. It involved the condensation of pyrrole derivatives onto N-benzylhydroxylamines in the presence of HCl. This two-step procedure provided access to a wide variety of 2,2'-dipyrromethanes (3a-m). It has also been extended to the synthesis of tripyrromethanes 4a-d and of N-confused dipyrromethanes 6a-d.
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Affiliation(s)
- Marie Laure Murat-Onana
- Département de Chimie Moléculaire (SERCO), UMR-5250, ICMG FR-2607, Université Joseph Fourier, CNRS, BP-53, 38041 Grenoble cedex 9, France
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Funabiki K, Murase Y, Furuno Y, Kubota Y, Ebihara M, Matsui M. Synthesis and hydrogenation of (E)-γ-aryl-γ-morpholino-α-trifluoromethylated allyl alcohols through the reaction of trifluoroacetaldehyde ethyl hemiacetal with enamines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Steves A, Oestreich M. Facile preparation of CF3-substituted carbinols with an azine donor and subsequent kinetic resolution through stereoselective Si–O coupling. Org Biomol Chem 2009; 7:4464-9. [DOI: 10.1039/b911534j] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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