Spektroskopische Untersuchungen
作者： Bernd Kohne , Klaus Praefcke , Reinhard Zeisberg
DOI: 10.1016/S0022-328X(00)82298-6
关键词: Proton NMR 、 Carbon 、 Medicinal chemistry 、 Halogen 、 Chemistry 、 Stereochemistry 、 Aryl
摘要: Abstract The 13 C resonances of the sp 2 hybridized carbon atoms isoelectronic substituted O -, S Se and Te -aryl esters benzenecarboxylic acids (I–IV) benzenedicarboxylic acid (IX) as well diaryl dichalkogenides V–VII are assigned. same is done for aromatic 1 H NMR peaks compounds III, IV, VI IX. influence chalkogen on positions these signals in all series discussed. Furthermore parallels effects four chalkogenes O, S, Se, I–VII IX halogens F, Cl, Br, I 4-halotoluenes VIII aryl rings directly attached to elements described explained.
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