The method for manufacturing the same and a sensor Pentaphenol diazoquinone deriv.

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PROBLEM TO BE SOLVED : To provide a method for producing a pentacenequinone derivative usable as a material for an organic electronic device such as a light emission element, a photoelectric transfer element and a semiconductor.SOLUTION : A pentacene derivative is obtained by causing the pentacenequinone derivative represented by formula (I) to react with a Grignard reagent or an organolithium reagent, in which Rto Rare H, an alkyl group or the like; and Ato Aare H or an electron-withdrawing group such as an alkoxycarbonyl group, with at least one of Ato Abeing the electron-withdrawing group.