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:
Feb. 02, 2010
Filed:
Jan. 30, 2006
Yoshiji Takemoto, Shiga, JP;
Kazuo Murakami, Nara, JP;
Yoshiji Takemoto, Shiga, JP;
Kazuo Murakami, Nara, JP;
Kyoto University, Kyoto, JP;
Sumitomo Chemical Company, Limited, Tokyo, JP;
Abstract
The present invention relates to a production method of optically active hydrazine compound (IV), which includes reacting azo compound (II) with compound (III) in the presence of optically active compound (I). The present invention also relates to a production method of optically active amine compound (V), which includes producing optically active hydrazine compound (IV) by the above-mentioned method, reacting the optically active hydrazine compound (IV) with a base or an acid to eliminate a protecting group represented by PG, and then subjecting the resulting compound to catalytic reduction or reacting the resulting compound with a zinc powder to reduce a nitrogen-nitrogen bond. wherein X is S or O; C*, C** and C*** are asymmetric carbons, Rand Rare lower alkyl groups etc., Rand Rmay in combination form cyclohexane etc., Ris aryl group optionally having substituent(s) etc., Rand Rare hydrogen atoms etc., Ris aryl group optionally having substituent(s) etc., Rand Rare electron withdrawing groups, and PG is a protecting group.