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:
May. 17, 1983
Filed:
Aug. 26, 1981
Applicant:
Inventors:
Tatsuya Shono, Kyoto, JP;
Yoshihiro Matsumura, Takatsuki, JP;
Assignee:
Otsuka Kagaku Yakuhin Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568347 ; 568386 ; 560231 ;
Abstract
A process for preparing cyclopentenone derivatives represented by the formula: ##STR1## wherein R.sub.1 is methyl or ethyl, and R.sub.2 is hydrogen, methyl or acetyl, characterized in that a 1,4-diketone derivative represented by the formula:
Quick Actions:
Shono, Tatsuya. (1983). Process for preparing cyclopentenone derivatives (U.S. Patent No. 4384144). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4384144
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile