Tetraalkyl substituted tricyclic ketone

#This invention relates to compounds having the generic structure: ##STR3## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents hydrogen or C1-C3 lower alkyl, processes for preparing same and organoleptic uses thereof in perfumes, colognes, perfumed articles such as anionic, cationic and nonionic detergents and dryer-added fabric softeners and in smoking tobaccos and smoking tobacco articles which comprise a wrapper encasing a smoking tobacco body and impinging thereupon a smoking tobacco article filter.

#There has been considerable work performed relating to substances which can be used to impart (modify, augment or enhance) flavors and fragrances to (or in) various consumable materials. These substances are used to diminish the use of natural materials, some of which may be in short supply, and to provide more uniform properties in the finished product.

#Low-keyed, oily, woody amber, leathery, warm spice, earthy, camphoraceous, patchouli-like, balsamic, green, cardamom-like, vetiver-like, sweet woody, amber and minty aromas are desirable in several types of perfume compositions, perfumed articles such as anionic, cationic and non-ionic detergents, cosmetic powders and dryer-added fabric softener articles, and colognes.

#The following examples serve to illustrate processes for specifically producing the tricyclic ketone(s) of our invention and processes for utilizing said tricyclic ketone(s) for their organoleptic properties.

#All parts and percentages given herein are by weight unless otherwise specified.

#Reaction: ##STR54##