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:
Jan. 06, 1976
Filed:
Mar. 22, 1974
Applicant:
Inventor:
Fukashi Horiuchi, Kawani, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2604 / ; 2605 / ;
Abstract
Optically active allethronyl acid phthalate is prepared by reacting (.+-.)-allethronyl acid phthalate of the formula ##SPC1## With an optically active amine from the group of .alpha.-phenylethylamine of the formula, ##SPC2## .alpha.-phenyl-.beta.-p-tolylethylamine of the formula ##SPC3## Threo-2-dimethylamino-1-(p-nitrophenyl)-1,3-propanediol of the formula ##SPC4## And naphthylethylamine of the formula ##SPC5## To form diastereomeric salts thereof, and decomposing the resolved salt to obtain the optically active allethronyl acid phthalate.