作者:M. S. Morales-Ríos、P. Joseph-Nathan
DOI:10.1002/mrc.1260251016
日期:1987.10
The 13C NMR assignment of indoles and 5‐methoxyindoles substituted at position 3, and some of their N‐carboalkoxy derivatives, was achieved from one‐ and two‐dimensional NMR experiments. Substituent chemical shifts and 1 J(CH) values were evaluated. The dynamic processes of N‐carboalkoxyindoles and N‐carboalkoxyindoline observed by high‐field 1H NMR show the existence of two preferred rotamers around
3位取代的吲哚和5-甲氧基吲哚及其一些N-碳烷氧基衍生物的13C NMR归属是通过一维和二维NMR实验实现的。评估了取代基化学位移和 1 J(CH) 值。通过高场 1H NMR 观察到的 N-carboalkoxyindoles 和 N-carboalkoxyindoline 的动态过程表明在氨基甲酸酯 NC( O)OR 键周围存在两个优选的旋转异构体,这被解释为频率/场强依赖性现象。