METHOD FOR PRODUCING 2,2'-BIS(2-HYDROXYETHOXY)-1,1'-BINAPHTHALENE

Title:

METHOD FOR PRODUCING 2,2'-BIS(2-HYDROXYETHOXY)-1,1'-BINAPHTHALENE

Document Type and Number:

WIPO Patent Application WO/2022/215460

Kind Code:

A1

Abstract:

Provided are: a 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene solution which comprises 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene, an aromatic hydrocarbon, and methanol, wherein the proportion between the aromatic hydrocarbon and the methanol is (aromatic hydrocarbon):methanol=99:1 to 10:90 by weight; and a method for producing 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene which includes the step of crystallizing the 2,2'-bis(2-hydroxyethoxy)-1,1'-binaphthalene out of the solution.

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Inventors:

MATSUMOTO KOJI (JP)
SOGABE SHOTA (JP)
SUGIMACHI YUKIHIRO (JP)

Application Number:

PCT/JP2022/011612

Publication Date:

October 13, 2022

Filing Date:

March 15, 2022

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Assignee:

TAOKA CHEMICAL CO LTD (JP)

International Classes:

C07C43/23; C07C41/40

Foreign References:

JP2014227388A	2014-12-08
JP2011153248A	2011-08-11
JP2010018753A	2010-01-28
JP2015168658A	2015-09-28
JP2020534350A	2020-11-26

Attorney, Agent or Firm:

FUKAMI PATENT OFFICE, P.C. (JP)

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