One-pot [1+1+1] synthesis of dithieno[2,3-b:3′,2′-d]thiophene (DTT) and their functionalized derivatives for organic thin-film transistors

A facile one-pot [1+1+1] synthesis of dithieno[2,3-b:3',2'-d]thiophene (; ) has been achieved, enabling the efficient realization of a new DTT-based semiconductor series for organic thin-film transistors (OTFTs).