METHOD FOR PRODUCING 9,9-BIS(4-AMINO-3-HALOGENOPHENYL)FLUORENE COMPOUND

Title:

METHOD FOR PRODUCING 9,9-BIS(4-AMINO-3-HALOGENOPHENYL)FLUORENE COMPOUND

Document Type and Number:

Japanese Patent JP2023009342

Kind Code:

A

Abstract:

To provide a method capable of producing a 9,9-bis(4-amino-3-halogenophenyl)fluorene compound in a high purity and a high yield with a less content of heteropoly acid.SOLUTION: There is provided a method for producing a 9,9-bis(4-amino-3-halogenophenyl)fluorene compound which comprises: a step of subjecting 9-fluorenone and 2-halogenoanilines represented by the following general formula (1) (wherein, X represents a chlorine or fluorine atom) to condensation reaction in the presence of a dissolved heteropoly acid to obtain a reaction solution containing a 9,9-bis(4-amino-3-halogenophenyl)fluorene compound; and a step of adding an alkaline aqueous solution into the obtained reaction liquid, followed by washing to remove the heteropoly acid.SELECTED DRAWING: None

Inventors:

SUGIURA TAKUYA
NAKATANI NIRO

Application Number:

JP2021112507A

Publication Date:

January 20, 2023

Filing Date:

July 07, 2021

Export Citation:

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Assignee:

TORAY FINECHEMICALS CO LTD

International Classes:

C07C209/84; C07C209/78; C07C211/49

Attorney, Agent or Firm:

Clear stream international patent attorney corporation
Daytime Takayoshi
Sakazawa Masao

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