N-sulfinylcarbamate-pentacene adduct: A novel pentacene precursor soluble in alcohols

A novel pentacene precursor was synthesized by Diels-Alder reaction of pentacene and N-sulfinylbutylcarbamate. The adduct is highly soluble in isopropyl and higher alcohols and moderately soluble in ethanol and methanol. This precursor undergoes retro-Diels-Alder reaction in solid phase at low temperatures to give pentacene. Organic thin film transistors with pentacene channels obtained by solution deposition of this novel precursor from alcohols and subsequent thermal conversion, results in OTFTs with moderately high field effect mobilities.