Preparing carbo- or hetero- cyclicaromatic compound, useful as organic semiconductors, comprises reacting dione compound with e.g. borontrifluoride, reacting unreacted reducing agents with acid derivative and isolating the product

摘要

Preparation of annealed carbo- or heterocyclic aromatic compound comprises reacting a dione compound (I) with lithium aluminum hydride, sodium borohydride or borontrifluoride (as reducing agents) in the presence of an organic solvent under an inert gas at 32-120[deg]C; reacting the unreacted reducing agents with an acid derivative and isolating the obtained antharacene compound (II), where the molar ratio of dione and reducing agent is 1:3-1:6. Preparation of annealed carbo- or hetero- cyclic aromatic compound comprises reacting a dione compound of formula (I) with lithium aluminum hydride, sodium borohydride or borontrifluoride (as reducing agents) in the presence of an organic solvent under an inert gas at 32-120[deg]C; reacting the unreacted reducing agents with an acid derivative and isolating the obtained anthracene compound of formula (II), where the molar ratio of dione and reducing agent is 1:3-1:6. R : H, 1-18C-alkyl, 1-18C-alkoxy, 2-8C-alkenyl, 2-8C-alkynyl, 3-8C-cycloalkyl, 5-8C-aryl, arylalkyl, alkylaryl, arylalkenyl, alkenylaryl, arylalkynyl, alkynylaryl or acyloxy (all substituted with heteroatom such as O, S or N, or halo); or R+adjacent group : aromatic carbo- or hetero- cyclic ring; and n : 1-4. [Image].