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. 14, 1981
Filed:
Nov. 02, 1979
Derek H Barton, Gif-sur-Yvette, FR;
Brian J Willis, Bergenfield, NJ (US);
Fritzsche Dodge & Olcott Inc., New York, NY (US);
Abstract
This invention concerns processes for preparing compounds having the structure ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the same or different and represents hydrogen or a lower alkyl group and wherein each dashed line represents a carbon-carbon single bond or a carbon-carbon double bond. Those compounds in which all three dashed lines represent carbon-carbon double bonds are prepared by reacting phenols and 2-alkylidene-1,4-disubstituted butanes. Selective reduction of these compounds yields those in which at least one dashed line represents a carbon-carbon single bond. Most of the compounds so prepared are new compounds. All are useful as fragrance materials either directly and/or in compositions and/or have useful fixative properties in fragrance compositions.