Department of Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Yokohama, Kanagawa, 223-8522, Japan.
Org Lett. 2012 Aug 3;14(15):3882-5. doi: 10.1021/ol301608m. Epub 2012 Jul 13.
A convenient method for the synthesis of tetraalkylanthracenes and -pentacenes by means of ruthenium-catalyzed regioselective C-H alkylation of the corresponding acenequinones was developed. Dialkyldiarylpentacene was also synthesized using chemoselective tandem C-H alkylation/C-O arylation of dimethoxypentacenequinone. It was suggested that a tetraalkylpentacene is stable under air in the dark and possesses an appropriate HOMO level as active material for p-type organic field-effect transistors (OFETs).
发展了一种通过钌催化的相应蒽醌的区域选择性 C-H 烷基化反应来合成四烷基蒽和五烷基蒽的简便方法。还通过二烷氧基五蒽醌的化学选择性串联 C-H 烷基化/C-O 芳基化反应合成了二烷基二芳基五蒽。研究表明，四烷基五蒽在黑暗中空气中稳定，并且具有合适的 HOMO 能级，可用作 p 型有机场效应晶体管 (OFET) 的活性材料。
