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:
Sep. 25, 1984
Filed:
May. 11, 1982
Applicant:
Inventors:
Roland E van der Stoel, Buchten, NL;
Petrus H Janssen, Geleen, NL;
Cornelis G van de Moesdijk, Elsloo, NL;
Assignee:
Stamicarbon B.V., Geleen, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548508 ;
Abstract
Indole, and/or methyl-substituted indoles are described as prepared from the corresponding 2-(cyanomethyl)cyclohexanone starting material through a catalytic reaction in the presence of hydrogen, using a metal, or metal compound, of Group VIII or Group Ib of the Periodic Table. The reaction is carried out at an elevated temperature at high conversion to yield the corresponding indole and (in some cases) tetra- or hexahydroindoles.