DFT 13C NMR chemical shift calculations has allowed a reliable and simple structural determination of regioisomeric heterocyclic systems that originate from the reactions of quinolinone or coumarin derivatives with hydroxylamine. In general, the proposed method may find application in the regioisomeric structural determination of heterocyclic compounds. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim
2D NMR 相关实验和 GIAO DFT 13C NMR
化学位移计算的结合使用,可以可靠和简单地确定源自
喹啉酮或
香豆素衍
生物与
羟胺反应的区域异构杂环系统。一般来说,所提出的方法可以应用于
杂环化合物的区域异构结构测定。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)