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:
Nov. 20, 1979
Filed:
Jan. 05, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Frankfurt, DE;
Abstract
[1,1-dithien-(3)-yl-1-hydroxy-(3)-propyl]-[1-phenyl-1-hydroxy-(2)-propyl]-a mine is prepared by condensing thien-(3)-yl lithium with a .beta.-halogen propionic acid alkyl ester of the formula ##STR1## where R is a lower alkyl group and Hal is chlorine, bromine or iodine, in an inert medium at a temperature below -50.degree. C. to form a compound of the formula ##STR2## which is then reacted with 2-amino-1-hydroxy-1-phenylpropane in an inert medium in the presence of a basic compound. The product cn be converted to [1,1-dithien-(3)-yl-(1)-propen-(3)-yl]-[1-phenyl-(2)-propyl]-amine by dehydration.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile