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

A new straightforward synthesis of dinaphtho[2,3-<i>b</i>:2′,3′-<i>f</i>]thieno[3,2-<i>b</i>]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 cm<sup>2</sup> V<sup>–1</sup> s<sup>–1</sup>.