Straightforward access to aryl-substituted tetrathiafulvalenes by palladium-catalysed direct C-H arylation and their photophysical and electrochemical properties

Treatment of tetrathiafulvalene (TTF) with aryl bromides in the presence of cesium carbonate and a palladium catalyst results in direct arylation of TTF. The direct arylation is inherently straightforward and efficient, hence easily creating a large library of aryl TTFs for systematic investigations of structure-property relationships. The present protocol will thus represent an efficient method for exploiting TTF-based interesting functional materials.