Improved syntheses of carboxytetrathiafulvalene, formyltetrafulvalene and (hydroxymethyl)tetrathiafulvalene: Versatile building blocks for new functionalised tetrathiafulvalene derivatives

Article abstract of DOI:10.1055/s-1994-25510

Reproducible, high-yielding synthesis of the title compounds 2-4, which are important precursors of highly functionalised tetrathiafulvalene derivatives and multistage redox assemblies, are described. This is demonstrated by the subsequent reactions of 3 and 4 to prepare compounds 9-16; the single crystal X-ray structure of TTF derivative 15 is described.