The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 02, 2023

Filed:

Mar. 09, 2021
Applicant:

Kureha Corporation, Tokyo, JP;

Inventors:

Shigeru Suzuki, Tokyo, JP;

Nobuyuki Kusano, Tokyo, JP;

Hisataka Kobayashi, Tokyo, JP;

Assignee:

Kureha Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 303/48 (2006.01); C07D 301/24 (2006.01);
U.S. Cl.
CPC ...
C07D 303/48 (2013.01); C07D 301/24 (2013.01);
Abstract

A method by which an intermediate product of an azole derivative can be produced at a lower cost and in a higher yield than those of known production methods is realized. A method of producing a compound of General Formula (III) includes: producing the compound of General Formula (III) by allowing a cyanide compound to act on a ketone derivative of General Formula (II); and washing the compound of General Formula (III) produced in the producing the compound of General Formula (III) with an alkaline aqueous solution.


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