General Synthesis of Dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) Derivatives

A new straightforward synthesis of dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) derivatives from readily available 2-methoxynaphthalenes is described. Thus, newly developed derivatives of DNTT showed very high field effect mobility in the vapor-processed field-effect transistors up to 8 cm² V^–1 s^–1.