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:
Feb. 17, 1981
Filed:
Aug. 10, 1978
Applicant:
Inventors:
Bing L Lam, Wynnewood, PA (US);
Wilford L Mendelson, King of Prussia, PA (US);
Charles B Spainhour, Jr, Cherry Hill, NJ (US);
Assignee:
SmithKline Corporation, Philadelphia, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546150 ; 564384 ;
Abstract
A method for preparing 1,2,3,4-tetrahydroisoquinolines comprising heating N-halo or hydroxyethyl-N-benzylamines in an aluminum chloride melt at 160.degree.-210.degree..