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