公开(公告)号：US20220135509A1

公开(公告)日：2022-05-05

申请号：US17574334

申请日：2022-01-12

申请人： Zhejiang Zhongxin Fluoride Materials Co., Ltd.

发明人： Qiliang YUAN ,  Dongdong JIANG ,  Ying WAN ,  Yonggen SHI ,  Pengfei XU ,  Haifeng CHEN

IPC分类号： C07C41/30 ,  C07C41/40

摘要： A synthetic method of 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene, belonging to the technical field of chemical synthesis. 9-fluorenone, phenoxyethanol, a catalyst and a cocatalyst are stiffed in an alkane solvent and heated until refluxing, the generated water is removed from the reaction solution via an azeotropic method while reacting, the reaction solution is diluted with water after the reaction is ended, uniformly stirred and cooled to separate out crystals and then filtered, a filter cake is rinsed and dried to obtain a 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene finished product; the filtered crystallization mother liquor is subjected to standing and layering, a water phase is removed, then an organic phase is distilled to recycle the alkane solvent, and the concentrate is rectified to recycle phenoxyethanol.