Method for producing a composition containing 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorene, and crystals of 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorine

TW202631565APending Publication Date: 2026-08-01HONSHU CHEM INDAL
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Patent Information

Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-08-01

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Abstract

An objective is to provide a production method that can be implemented as an industrial manufacturing method and which includes a step for efficiently purifying 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorene. As a solution, provided is a method for producing a composition containing 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorene, the method including a crystallization step in which crystals of 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorene are precipitated from a crystallization solution containing 9,9-bis[9-(2-hydroxyethoxy)-3-phenanthryl]fluorene and an aliphatic ketone solvent having
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