Our company uses fluorene as the starting material and synthesizes 9,9-dichlorofluorene through a phase transfer catalyst. The 9,9-dichlorofluorene is heated and refluxed in an alkaline solution for hydrolysis, and then cooled and crystallized. High yield can be obtained. Purity of 9-fluorenone. The synthetic route is simple and easy to implement, and has no special requirements for reaction equipment.
