1′-Trimethylsilylethynyl-, 1′-ethenyl- and 1′-formyl-1-ethynylferrocenes: syntheses and electrochemical properties

Efficient syntheses of 1′-trimethylsilylethynyl-, 1′-ethenyl-, and 1′-formyl-1-ethynylferrocenes are reported. The majority of these compounds exhibit chemically reversible ferrocene-based oxidation processes from cyclic voltammetry and thereby constitute key synthons for the development of redox-switchable molecular systems.