Analysis of13C NMR substituent chemical shifts in some (aryl)(2-nitrobenzo [b]thiophen-3-yl)amines: A new class of compounds with analgesic, anti-exudative and anti-inflammatory activities showing low mutagenicity
作者:Liliana Lamartina、Domenico Spinelli、Francesco Guerrera、Maria Concetta Sarvà
DOI:10.1002/mrc.1260331108
日期:1995.11
The 13C NMR chemical shift values of (aryl)(2‐nitrobenzo[b]thiophen‐3‐yl)amines were measured in DMSO‐d6 solutions, suggesting the occurrence of an alternate charge polarization at C‐3, C‐2, C‐3a, C‐7a, C‐4 and C‐5. A dual substituent parameter analysis of the experimental data indicates a large or a low resonance contribution for aryl para or meta substituents, respectively, while the inductive component
在 DMSO-d6 溶液中测量了(芳基)(2-硝基苯并[b]噻吩-3-基)胺的 13C NMR 化学位移值,表明在 C-3、C-2、C -3a、C-7a、C-4 和 C-5。实验数据的双取代基参数分析分别表明芳基对位或间位取代基有较大或较低的共振贡献,而电感分量始终保持不变。