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15,773 results
  • Nucleophilic halo-Michael addition under Lewis-base activation. [Journal Article]
    Chem Commun (Camb) 2019Laina-Martín V, Pérez I, … Alemán J
  • A simple and general conjugate nucleophilic halogenation is presented. The THTO/halosilane combination has shown the ability to act as a nucleophilic halide source in the conjugate addition to a variety of Michael acceptors. In addition, a straightforward diastereoselective halogen installation using α,β-unsaturated acyloxazolidinones as platforms has been developed.
  • Understanding the effects of solvate ionic liquids as solvents on substitution processes. [Journal Article]
    Org Biomol Chem 2019Schaffarczyk McHale KS, Wong MJ, … Harper JB
  • The effects of solvate ionic liquids as solvents have been considered for two substitution processes where the solvent effects of typical ionic liquids have been extensively investigated previously; the bimolecular nucleophilic substitution (SN2) reaction between pyridine and benzyl bromide and the nucleophilic aromatic substitution (SNAr) reaction between ethanol and 1-fluoro-2,4-dinitrobenzene.…
  • New Insight into U@C80: Missing U@D3(31921)-C80 and Nuanced Enantiomers of U@C1(28324)-C80. [Journal Article]
    Inorg Chem 2019Zhao YX, Li MY, … Zhao X
  • Triplet U@C1(28324)-C80, violating the isolated pentagon rule, is experimentally recognized as the stable isomer for uranium-based endohedral monometallofullerene U@C80. Here we first verified that triplet U@D3(31921)-C80, following the isolated pentagon rule, was to be another thermodynamically stable isomer via density functional theory in conjunction with statistical thermodynamic analysis. U@…
  • Nucleophilic Halogenation of Cyclic Nitronates: A General Access to 3-Halo-1,2-Oxazines. [Journal Article]
    J Org Chem 2019Malykhin RS, Kokuev AO, … Sukhorukov AY
  • In the article, comprehensive studies on the nucleophilic chlorination and bromination of readily available six-membered cyclic nitronates (1,2-oxazine-N-oxides) are reported. Under optimized conditions (POCl3 or (COBr)2 with Hünig's base), 3-halo-substituted 1,2-oxazines, which are difficult to access by other routes, were obtained in good to high yields. The latter were shown to be convenient p…
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