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:
Apr. 29, 1980
Filed:
Feb. 02, 1979
Applicant:
Inventors:
Kenneth G Holden, Haddonfield, NJ (US);
Carl D Perchonock, Philadelphia, PA (US);
Assignee:
SmithKline Corporation, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546150 ; 546141 ; 2605 / ;
Abstract
A novel process for preparing 7,8-dichloro-1,2,3,4-tetrahydroisoquinoline by cyclizing N-acetyl-2,3-dichlorobenzylaminoacetaldehyde dimethyl acetal with a Lewis acid, reducing, and hydrolyzing the resulting acylated isoquinoline is disclosed.
Holden, Kenneth. (1980). Method for preparing 7,8-dichloro-1,2,3,4-tetrahydroisoquinoline (U.S. Patent No. 4200754). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4200754
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile