Electrophilic substitution in indoles. Part 14. Azo-coupling of indoles with p-nitrobenzenediazonium fluoroborate
作者:Anthony H. Jackson、Patrick P. Lynch
DOI:10.1039/p29870001483
日期:——
Indole and its 1- and 2-methyl derivatives undergo second-order azo-coupling reactions with p-nitrobenzenediazonium tetrafluoroborate to afford the corresponding indole-3-azo-(4′-nitrobenzenes). Kinetic studies with related 3-deuterioindoles showed that there is no isotope effect, thus confirming that the initial attack of the electrophile is the rate-determining step, as in the majority of electrophilic
吲哚及其1-和2-甲基衍生物与对硝基苯重氮四氟硼酸酯进行二阶偶氮偶合反应,得到相应的吲哚-3-偶氮-(4'-硝基苯)。与相关的3-氘代吲哚的动力学研究表明,没有同位素效应,因此证实了亲电试剂的初始进攻是决定速率的步骤,就像大多数亲电芳族取代反应一样。