Title:
METHOD FOR PRODUCING ANTHRACENE-9-CARBOXYLIC ACID, AND REACTION MIXTURE
Document Type and Number:
WIPO Patent Application WO/2024/105970
Kind Code:
A1
Abstract:
[Problem] To provide: a reaction mixture containing a salt of anthracene-9-carboxylic acid that is friendly to the human body and the environment by a reaction system that does not use heavy metals, transition metals, etc., and suppresses the generation of 9,10-anthraquinone, an undesirable by-product; a production process therefor; and a simple, industrially practicable production method for said anthracene-9-carboxylic acid that is free of heavy metals, transition metals, etc. [Solution] One method for producing anthracene-9-carboxylic acid of the present invention includes a first reaction step in which 9-anthraldehyde is reacted with at least one selected from the group consisting of sodium tert-butoxide and potassium tert-butoxide in an inert solvent of -15°C to 10°C inclusive.
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Inventors:
YAMASAKI YASUHIRO (JP)
Application Number:
PCT/JP2023/031564
Publication Date:
May 23, 2024
Filing Date:
August 30, 2023
Export Citation:
Assignee:
OSAKA SHINYAKU CO LTD (JP)
International Classes:
C07C51/16; C07C29/14; C07C33/18; C07C63/44
Foreign References:
| JP2004018391A | 2004-01-22 | |||
| JP2002187867A | 2002-07-05 | |||
| CN114573452A | 2022-06-03 | |||
| CN113831237A | 2021-12-24 |
Other References:
HAYAFUJI, YUKITAKA, IMAKURA, YASUHIRO: "Development and practice of the chemical experiment material by using the Cannizzaro reaction of benzaldehyde", HYOGO UNIVERSITY OF TEACHER EDUCATION, JOURNAL FOR THE SCIENCE OF SCHOOLING, no. 16, 2015, pages 131 - 137
Attorney, Agent or Firm:
KOUNO Hiroaki (JP)
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