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:
Mar. 16, 1976
Filed:
Mar. 10, 1975
Braja Dulal Mookherjee, Matawan, NJ (US);
Venkatesh Kamath, Red Bank, NJ (US);
Edward J Shuster, Brooklyn, NY (US);
International Flavors & Fragrances Inc., New York, NY (US);
Abstract
A process for the preparation of a mixture of compounds of the structure ##SPC1## Is disclosed whereby a Pi-halotricyclene having the structure ##SPC2## Where Y is chloro, bromo or iodo is reacted with an alkali metal cyanide to prepare the corresponding nitrile; the nitrile is reacted with diisobutylaluminum hyhdride to prepare the corresponding aldehyde, a nortricycloekasantalal which is then condensed with butanone to prepare the above mentioned mixture of compounds. Also claimed are the product ketones which are useful for altering the aroma of consumable products including perfumes, perfume compositions and perfumed articles.