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.
Patent No.:
Date of Patent:
Jul. 16, 2019
Filed:
Dec. 01, 2016
Applicant:
Central Glass Company, Limited, Ube-shi, Yamaguchi, JP;
Inventors:
Asami Inazu, Kawagoe, JP;
Eri Nishizawa, Kawagoe, JP;
Shinya Akiba, Kawagoe, JP;
Ryo Nadano, Ube, JP;
Assignee:
Central Glass Company, Limited, Ube-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/41 (2006.01); C07C 41/50 (2006.01); B01J 31/24 (2006.01); C07C 43/317 (2006.01); C07C 47/14 (2006.01); C07B 61/00 (2006.01);
U.S. Cl.
CPC ...
C07C 45/41 (2013.01); B01J 31/24 (2013.01); B01J 31/2447 (2013.01); C07C 41/50 (2013.01); C07C 43/317 (2013.01); C07C 47/14 (2013.01); B01J 2523/821 (2013.01); C07B 61/00 (2013.01);
Abstract
Disclosed is an industrial method for efficient production of an α,α-difluoroaldehyde compound, which includes reaction of an α,α-difluoroacetate with hydrogen gas (H) in the presence of a ruthenium catalyst and a base. By the adoption of specific reaction conditions (catalyst, base, pressure etc.), it is possible to produce the target α,α-difluoroaldehyde compound with a high conversion rate and high selectivity.