Abstract
The electrochemical oxidation of several α,α′-di- tert-butyl pyrroles and thiophenes has been investigated in acetonitrile. Reversible cyclic voltammograms for the oxidation of one-ring α,α′-di- tert-butyl thiophenes or pyrroles were obtained at low scan rates (0.05–5 V s −1), indicating a large stability of their cation-radicals. Chemical evolutions without polymerization of the cation-radical were observed at longer time scales. The formal potentials E o and electron exchange standard rate constants k s were determined and compared with preceding reports for the unsubstituted analogues. From the substituent variations, the E o values for the oxidation of the unsubstituted thiophene and bithiophene were estimated as + 1.97 and + 1.49 V(SCE) respectively.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
