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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.:

US 11084835 B1

PDFFull Text
Date of Patent:
Aug. 10, 2021

Filed:

Mar. 01, 2019

2,3-bisphosphinopyrazine derivative, method for producing same, transition metal complex, asymmetric catalyst, and method for producing organic boron compound

Applicants:

Nippon Chemical Industrial Co., Ltd., Tokyo, JP;

National University Corporation Hokkaido University, Sapporo, JP;

Inventors:

Hajime Ito, Sapporo, JP;

Hiroaki Iwamoto, Sapporo, JP;

Tsuneo Imamoto, Tokyo, JP;

Ken Tamura, Tokyo, JP;

Natsuhiro Sano, Tokyo, JP;

Assignees:

NIPPON CHEMICAL INDUSTRIAL CO., LTD., Tokyo, JP;

NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, Sapporo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Yun Qian

Int. Cl.
CPC ...
C07F 19/00 (2006.01); C07F 9/50 (2006.01); B01J 31/16 (2006.01); B01J 31/24 (2006.01);
U.S. Cl.
CPC ...
C07F 9/5022 (2013.01); B01J 31/1616 (2013.01); B01J 31/24 (2013.01);
Abstract

Provided is a 2,3-bisphosphinopyrazine derivative represented by the following general formula (1), wherein R, R, R, and Rrepresent an optionally substituted straight-chain or branched alkyl group having 1 to 10 carbon atoms, an optionally substituted cycloalkyl group, an optionally substituted adamantyl group, or an optionally substituted phenyl group, Rrepresents an optionally substituted alkyl group having 1 to 10 carbon atoms or an optionally substituted phenyl group, each Rmay be the same group or a different group, Rrepresents a monovalent substituent, n denotes an integer of 0 to 2.

Find Patent Forward Citations

Ito, Hajime. (2021). 2,3-bisphosphinopyrazine derivative, method for producing same, transition metal complex, asymmetric catalyst, and method for producing organic boron compound (U.S. Patent No. 11084835). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11084835

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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