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:
Mar. 10, 2026
Filed:
Sep. 23, 2020
Applicant:
Fmc Agro Singapore Pte. Ltd., Singapore, SG;
Inventors:
Assignee:
FMC AGRO SINGAPORE PTE. LTD., Singapore, SG;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 209/62 (2006.01); C07C 211/60 (2006.01); C07C 231/02 (2006.01);
U.S. Cl.
CPC ...
C07C 209/62 (2013.01); C07C 231/02 (2013.01); C07B 2200/07 (2013.01);
Abstract
A process for preparing 1,1,3-trimethylindan-4-amine of formula (I), or a salt thereof, enriched in one of its two enantiomers, in particular the (R) enantiomer, including chirally separating an optionally substituted 2,2,4-trimethyl-1,2,3,4-tetrahydroquinoline of formula (III) A process may prepare one or more optically active amides of formula (II) starting from compounds of formula (I).