Elucidation of the structures of 3-alkylthio-, 3-benzylthio-, 2-arylthio- and 2-heteroarylthio-N1-(1,3-dimethylbutyl)-N4-phenyl-1,4-phenylenediamines by one- and two-dimensional NMR spectroscopy
作者:Alan R. Katritzky、Novruz G. Akhmedov、Ashraf A. A. Abdel-Fattah、Mingyi Wang、Charles J. Rostek、Otto W. Maender
DOI:10.1002/mrc.1343
日期:2004.5
4‐phenylenediamines (6–14). The structures of 2–14, obtained in 55–91% yields, were confirmed in CDCl3 or DMSO‐d6 solution using 1D (NOE difference, coupled 13C NMR spectra, APT and DEPT) and 2D NMR techniques [DQCOSY, NOESY, HETCOR and heteronuclear multiple bond coherence (HMBC)] that resulted in unambiguous proton and carbon NMR resonance assignments. The substituent‐induced 13C NMR chemical shift differences
烷基硫醇和苄硫醇与苯醌二亚胺 (1) 的亲核加成得到相应的 3-烷硫基或 3-苄硫基 1,4-苯二胺 (2-5)。然而,将芳基硫醇或杂芳硫醇加成 1 形成 2-芳硫基或 2-杂芳硫基-1,4-苯二胺 (6-14)。2-14 的结构以 55-91% 的产率在 CDCl3 或 DMSO-d6 溶液中使用 1D(NOE 差异、耦合 13C NMR 光谱、APT 和 DEPT)和 2D NMR 技术[DQCOSY、NOESY、HETCOR 和异核多键相干 (HMBC)] 导致明确的质子和碳 NMR 共振分配。相对于模型化合物 N1-(1,3-二甲基丁基)-N4-苯基-1,4-苯二胺 (DMBPPD) (15) (a苯醌二亚胺的还原形式)。