All solvents used were of commercial grade and used without further purification. Quinuclidine, Me4NBF4 and 1,1,1,3,3,3-hexafluoro-2-propanol were purchased from Sigma-Aldrich and TCI and were used without further purification. Electrochemical reactions were performed in a ElectraSyn 2.0 device with IKA graphite electrodes. Large-scale oxidation was performed with a VSP-300 (BioLogic) potentiostat using graphite electrodes (SIGRAFINE®, SGL Carbon SE). Flash chromatography was performed manually with silica gel (SiliaFlash P60, 230-400 mesh, Silicycle) or performed with automated column chromatography using a Reveleris flash chromatography system purchased from Buchi. TLC was performed on Merck silica gel 60, 0.25 mm plates and visualization was done by staining with anisaldehyde stain. NMR spectra were recorded on a Varian AMX400 spectrometer using CD3OD, CD3CN or CDCl3. Data are reported as follows: Chemical shifts (δ), multiplicity (s = singlet, d = doublet, m = multiplet, br = broad), coupling constants J (Hz), and integration. Highresolution mass spectra (HRMS) were recorded on a Thermo Scientific LTQ Orbitrap XL.