138528-59-3Relevant academic research and scientific papers
Electron Transfer Reactions. A Reinvestigation of the Chlorination of 1-Methyl-2-phenylindole with N-Chlorobenzotriazole. The Role of Oxygen and Oxygenated Solvent
Carloni, Patricia,Eberson, Lennart,Greci, Lucedio,Stipa, Pierluigi,Tosi, Giorgio
, p. 1779 - 1784 (2007/10/02)
1-Methyl-2-phenylindole (1, MPI-H) reacts with N-chlorobenztriazole (2, BT-Cl) to form the corresponding radical cation (MPI-H).+ which itself, or via the indolyl radical (MPI).+, formed by deprotonation of MPI-H.+, reacts with oxygen or a nucleophilic solvent leading to indoxyls 4-7.Cyclic voltammetric studies, as well as the oxidation of MPI-H with BT-Cl carried out in the EPR cavity, show that the radical cation MPI-H.+ dimerizes to give 3,3'-(MPI)2 8 which is transformed into the corresponding radical cation 3,3'-(MPI)2.+ in the reaction medium.The identi ty of this radical cation has been confirmed by oxidizing 3,3'-(MPI)2 directly.The formation of the radical cations MPI-H.+ and 3,3'-(MPI)2.+ has been monitored by UV-VIS spectroscopy and their decay rate constants measured.
