Aromatic nucleophilic substitution reactions of some 2-L-3-nitro-5-X-thiophenes with piperidine and aniline in methanol. Substituent constants for the thiophene system
作者:Giovanni Consiglio、Vincenzo Frenna、Caterina Arnone、Elisabetta Mezzina、Domenico Spinelli
DOI:10.1039/p29940002187
日期:——
The rate constants for the reactions of some 2-L-3-nitro-5-X-thiophenes 1–4 with aniline and of compounds (4) with piperidine in methanol have been measured at various temperatures. By using the data obtained in this work as well as previously available data sets, a series of optimized ‘thiophene’σT values has been calculated. The susceptibility constants ρ(L)of the various sets have been analysed
对于某些2-L-3-硝基-5--X-噻吩的反应速率常数1 - 4与苯胺和化合物(的4用在甲醇中的哌啶)已经在不同温度下进行了测量。通过使用在这项工作中获得的,以及先前可用的数据集的数据,一系列优化“thiophene'σ的Ť值已被计算。在反应性-选择性原理的框架内分析了各种集合的磁化常数ρ(L)。