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Showing 1 to 8 of 8 for “"oxiranes"”.
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An EPR and DFT investigation of the products formed in the reaction of group 11 metal atoms with three-membered heterocyclic compounds
… small, strained, heterocyclic compounds, namely, oxiranes, thiiranes, and aziridines. Experimental data indicates that the major products formed are mononuclear metal complexes, M-XCH2CH2 (X = O, S or NH). In addition, reaction mixtures containing Cu atoms and oxiranes or thiirane yield novel …
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Synthese, Charakterisierung und thermischer Abbau von Copolymeren aus THF und funktionalisierten Oxiranen
… copolymers of thf and differently substituted oxiranes were prepared via kationic ring-opening copolymerization. Oxirane comonomers used were ethylene oxide, propylene oxide, alkylglycidyl ethers, alkyl 3,4-epoxybutanoate and glycidyl acetate. Copolymers with different ranges of composition and …
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Two enantiodivergent syntheses of balanol and the chemoenzymatic synthesis of oseltamivir
… on the reactivity of the Burgess reagent with oxiranes. Structural, mechanistic, and computational studies are presented. Included is the development of a (-)-menthyl version of the Burgess reagent and its application to the synthesis of enantiomerically pure ~-amino alcohols. This methodology …
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Synthesis And Polymerization Of Bifunctional Five-membered Cyclic Dithiocarbonates And Their Use As Stabilizers For Magnetic Nan
… the reactions of the corresponding bifunctional oxiranes (epoxides) with carbon disulfide at room temperature with lithium bromide as catalyst. Full characterization of these monomers was performed including elemental analysis, proton and carbon nuclear magnetic resonance (NMR) spectroscopy, gas …
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Asymmetrische Synthese von bicyclischen Alpha-Aminosäuren durch intramolekulare Pauson-Khand-Reaktion von l-Alkenylsulfoximinen und Festphasensynthese mit Allylsulfoximinen
… their use in the asymmetric synthesis of alkenyl oxiranes is described. The allylsulfoximine resins were converted to homoallylic alcohols via alpha-hydroxyalkylation. Cleavage from the polymer was performed via substitution of the sulfoximine moiety by a chlorine atom. The obtained mixture of …
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Synthesis and characterization of polymacromonomers based on polyethers
… was based on living anionic polymerization of oxiranes. Two monomers were used: 1-ethoxyethyl glycidyl ether (glycidol acetal), which after hydrolysis forms hydrophilic glycidol blocks and glycidyl phenyl ether forming hydrophobic blocks. Polymerizable double bonds were introduced by …