2, 6-Dimethoxyphenyl derivatives of sulfur, selenium and tellurium, such as MeΦE, EtΦE,[Me 2 ΦE] X,[MeEtΦE] X {Φ= 2, 6-(MeO) 2 C 6 H 3; E= S, Se, Te; X= MeSO 4, ClO 4, or PF 6} have been prepared, mostly as crystals. The reaction rates and the equilibrium constants for methyl abstraction by MeΦE from [MeRΦE′] ClO 4 {R= Me, Et, Φ; E, E′= S, Se, Te} were measured by means of 1 H NMR spectra. Some representative results ...
