Method for preparing surface indole diketone and derivative thereof

The present invention relates to a method for preparing indole-dione or a derivative thereof table. The main steps of the method are: aniline or its derivative and 2,3-dihalo-succinate as a starting material, simply by "condensation", a "cyclization reaction," and "the dehydrogenation reaction "tables can be prepared indol-dione or a derivative thereof, and the dehydrogenating agent used recyclable. Indol-dione derivative or a process for preparing a table according to the present invention provided with simple steps, low production cost and environmental friendliness.