9,9-BIS (3,5-DIALKYL-4-AMINOPHENYL) FLUORENE COMPOUND PRODUCTION METHOD

Title:

9,9-BIS (3,5-DIALKYL-4-AMINOPHENYL) FLUORENE COMPOUND PRODUCTION METHOD

Document Type and Number:

WIPO Patent Application WO/2022/097609

Kind Code:

A1

Abstract:

Provided is a production method capable of producing a 9,9-bis (3,5-dialkyl-4-aminophenyl) fluorene compound in a high yield. A 9,9-bis (3,5-dialkyl-4-aminophenyl) fluorene compound represented by general formula (2) below is produced by reacting 9-fluorenone with 2, 6-dialkylanilines represented by the following general formula (1) in the coexistence of an acid catalyst in an aprotic polar solvent having an amide bond and a boiling point of 170°C or more. (In the formula, R represents any of the aliphatic hydrocarbon groups having 1-4 carbon atoms.)

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Inventors:

NAKATANI JIRO (JP)

Application Number:

PCT/JP2021/040276

Publication Date:

May 12, 2022

Filing Date:

November 01, 2021

Export Citation:

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Assignee:

TORAY FINECHEMICALS CO LTD (JP)

International Classes:

C07C209/68; C07B61/00; C07C211/43

Domestic Patent References:

WO2017145747A1	2017-08-31
WO2020132406A1	2020-06-25

Foreign References:

JPS62149650A	1987-07-03
JP2020189827A	2020-11-26
JP2021004227A	2021-01-14

Attorney, Agent or Firm:

SEIRYU PATENT PROFESSIONAL CORPORATION et al. (JP)

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