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:
Aug. 19, 1986
Filed:
Sep. 10, 1985
Roger L Snowden, Grand-Lancy, CH;
Firmenich SA, Genvea, CH;
Abstract
Nitrogen containing compounds of formula ##STR1## wherein symbol R designates a C.sub.1 -C.sub.3 alkyl group, each of R.sup.1 and R.sup.2 represents, when taken separately, a C.sub.1 -C.sub.6 alkyl radical or, when taken together, a polymethylene and R.sup.3 represents a C.sub.1 -C.sub.3 alkyl group, preferably a methyl radical, or a hydrogen atom. Process for their preparation comprising the addition of an amine of formula ##STR2## to an aldehyde of formula ##STR3## Use of said compounds (I) as starting materials for the preparation of decalin ketone derivatives of general formula ##STR4## containing a double bond in one of the positions indicated by the dotted lines and wherein R.sup.4 designates a hydrogen atom or a methyl radical, and symbols R and R.sup.3 have the meaning indicated for formula (I).