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. 02, 1980
Filed:
Aug. 06, 1979
Applicant:
Inventors:
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546 19 ; 546 20 ;
Abstract
For preparing 1-oxa-diaza-oxo-spirodecanes of the formula ##STR1## where X.noteq.Y, standing for ##STR2## either a polyalkylpiperidone-4-cyanohydrine is reacted with an aldehyde or a ketone, or a polyalkyl-piperidone-4 is reacted with an aldehyde or ketone-cyanohydrine in a liquid aliphatic carboxylic acid as solvent.