Preparation method of 9-phenanthrene phenol compound

The invention discloses a preparation method of a 9-phenanthrene phenol compound, which comprises the following steps: reacting enaminone and iodobenzene compounds as shown in chemical structural general formulas (I) and (II) in an organic solvent under the action of a catalyst and an oxidizing agent to obtain a reaction product, and purifying the reaction product to obtain the 9-phenanthrene phenol compound. The chemical structural general formula of the 9-phenanthrene phenol compound is shown in a formula (III). The enaminone compound and the iodobenzene compound which are simple to synthesize, high in conversion rate and wide in substrate application range are selected as the raw materials, the used catalyst is low in cost and small in pollution, and few reaction byproducts are generated; the preparation method has the characteristics of simplicity and safety in operation, high selectivity and high yield. As the 9-phenanthrene phenol compound is widely distributed in biological and pharmaceutical active mo