Search Results - "Giuffredi, Guy T"
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Organocatalyzed Enantioselective Fluorocyclizations
Published in Angewandte Chemie International Edition (22-08-2011)“…Enantioenriched fluorinated heterocycles can be prepared through fluorocyclizations of prochiral indoles (see scheme; Ts=tosyl, Bn=benzyl,…”
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Coordination diversity in hydrogen-bonded homoleptic fluoride-alcohol complexes modulates reactivity
Published in Chemical science (Cambridge) (01-01-2015)“…The nucleophilic reactivity of fluoride ion is altered in the presence of hydrogen-bond donors, including alcohols. Relatively little is known about the…”
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Gold-Catalyzed Intramolecular Oxidative Cross-Coupling of Nonactivated Arenes
Published in Chemistry : a European journal (26-04-2010)“…An (Au)some coupling! Gold‐catalyzed cascade CO cyclizations of benzyl‐substituted allenoate esters followed by intramolecular oxidative CC cross‐coupling…”
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Intramolecular Schmidt Reaction Involving Primary Azidoalcohols under Nonacidic Conditions: Synthesis of Indolizidine (−)-167B
Published in Journal of the American Chemical Society (16-12-2009)“…A powerful intramolecular Schmidt reaction starting from primary azidoalcohols is reported. This approach involves a nonacidic activation of the alcohol via…”
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Diastereoselective Synthesis of P-Stereogenic Heterocycles via Enyne Ring-Closing Metathesis
Published in Organic letters (19-03-2010)“…A range of P-containing ene-diynes suitable for desymmetrization was prepared via a two-step process starting from phosphorus oxychloride. In the presence of…”
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Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2
Published in Angewandte Chemie International Edition (27-09-2013)“…An intramolecular bifurcated H‐bond from the axial HO‐2 group to the axial F‐4 atom and to the O5 atom of α‐D‐hexopyranosides in apolar solvents is evidenced…”
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Gold-Catalyzed Cascade Cyclization−Oxidative Alkynylation of Allenoates
Published in Organic letters (05-11-2010)“…A gold(I)-catalyzed cascade cyclization−oxidative cross-coupling process has been applied to prepare β-alkynyl-γ-butenolides directly from allenoates and…”
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Identifying Lysophosphatidic Acid Acyltransferase β (LPAAT‐β) as the Target of a Nanomolar Angiogenesis Inhibitor from a Phenotypic Screen Using the Polypharmacology Browser PPB2
Published in ChemMedChem (22-01-2019)“…By screening a focused library of kinase inhibitor analogues in a phenotypic co‐culture assay for angiogenesis inhibition, we identified an aminotriazine that…”
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De Novo Synthesis of Racemic 4-Deoxy-4,4-difluoro- and 2,4-Dideoxy-2,4,4-trifluorohexosides
Published in European Journal of Organic Chemistry (01-07-2011)“…A range of racemic 4‐deoxy‐4,4‐difluorinated carbohydrates were prepared by using a diversity‐oriented de novo synthesis starting with three commercially…”
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Book Review Journal Article -
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Organocatalyzed Enantioselective Fluorocyclizations
Published in Angewandte Chemie (22-08-2011)“…Enantiomerenangereicherte fluorierte Heterocyclen können durch Fluorcyclisierungen prochiraler Indole hergestellt werden (siehe Schema; Ts=Tosyl, Bn= Benzyl,…”
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Facile synthesis of 4-deoxy-4-fluoro-α- d-talopyranoside, 4-deoxy-4-fluoro-α- d-idopyranoside and 2,4-dideoxy-2,4-difluoro-α- d-talopyranoside
Published in Journal of fluorine chemistry (01-10-2011)“…4-Deoxy-4-fluoro-α- d-idopyranosides and 2,4-dideoxy-2,4-difluoro-α- d-talopyranosides were prepared in two independent syntheses, in good yields from…”
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Synthesis and O-phosphorylation of 3,3,4,4-tetrafluoroaryl-C-nucleoside analogues
Published in Organic & biomolecular chemistry (21-03-2010)“…Enantioenriched tetrafluorinated aryl-C-nucleosides were synthesised in four steps from 1-benzyloxy-4-bromo-3,3,4,4-tetrafluorobutan-2-ol. The presence of the…”
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Intramolecular OHFC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF2
Published in Angewandte Chemie International Edition (27-09-2013)“…An intramolecular bifurcated H-bond from the axial HO-2 group to the axial F-4 atom and to the O5 atom of α-D-hexopyranosides in apolar solvents is evidenced…”
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Intramolecular OH⋅⋅⋅FC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF 2
Published in Angewandte Chemie International Edition (27-09-2013)Get full text
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Intramolecular OHFC Hydrogen Bonding in Fluorinated Carbohydrates: CHF is a Better Hydrogen Bond Acceptor than CF sub(2)
Published in Angewandte Chemie International Edition (01-09-2013)“…An intramolecular bifurcated H-bond from the axial HO-2 group to the axial F-4 atom and to the O5 atom of [alpha]-D-hexopyranosides in apolar solvents is…”
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Front Cover: Identifying Lysophosphatidic Acid Acyltransferase β (LPAAT‐β) as the Target of a Nanomolar Angiogenesis Inhibitor from a Phenotypic Screen Using the Polypharmacology Browser PPB2 (ChemMedChem 2/2019)
Published in ChemMedChem (22-01-2019)“…The Front Cover illustrates the chemical space distance relationship between an angiogenesis inhibitory triazine identified in a phenotypic screen (structure…”
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Asymmetric de novo synthesis of fluorinated d-glucitol and d-mannitol analogues
Published in Tetrahedron: asymmetry (07-05-2009)Get full text
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Coordination diversity in hydrogen-bonded homoleptic fluoride-alcohol complexes modulates reactivityElectronic supplementary information (ESI) available: Detailed procedures for the synthesis of fluoride-alcohol complexes, 1H and 13C NMR spectra, crystal structures and reaction kinetics. CCDC 1401765-1401778. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc01812a
Published 10-08-2015“…The nucleophilic reactivity of fluoride ion is altered in the presence of hydrogen-bond donors, including alcohols. Relatively little is known about the…”
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Coordination diversity in hydrogen-bonded homoleptic fluoride–alcohol complexes modulates reactivity† †Electronic supplementary information (ESI) available: Detailed procedures for the synthesis of fluoride–alcohol complexes, 1H and 13C NMR spectra, crystal structures and reaction kinetics. CCDC 1401765–1401778. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5sc01812a Click here for additional data file. Click here for additional data file
Published in Chemical science (Cambridge) (22-06-2015)“…The X-ray structures of fourteen novel fluoride–alcohol complexes with tetrabutylammonium as the counterion show coordination diversity varying from four to…”
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