Abstract: Described are methods for augmenting or enhancing the aroma or taste of a tobacco or tobacco flavoring composition which comprises adding thereto an organoleptic property modifying quantity of a composition comprising a substantially pure, synthetically produced 1-(3-methylthio)butyryl)-2,6,6-trimethyl-cyclohexene or the 1,3-cyclohexadiene analog defined by the structure: ##STR1## wherein the dashed line is a carbon-carbon single bond or a carbon-carbon double bond.

Abstract: The compounds 1-[3-(methylthio)butyryl]-2,6,6-trimethyl-cyclohexene and/or the corresponding 1,3-cyclohexadiene analog having the generic structure: ##STR1## wherein the dashed line could be a single or a double carbon-carbon bond and processes and compositions containing same are described for the use in perfume augmenting and enhancing compositions and for use perfume aroma imparting compositions; produced by a process illustrated by the reaction: ##STR2## The above-mentioned compounds produce: In perfumes, fruity, floral, natural rose oil-like and earthy aromas with potato top notes and minty, tomato vine, Brussel sprout-like and woody undertones.

Abstract: The compounds 1-[3-(methylthio)butyryl]-2,6,6-trimethyl-cyclohexene and/or the corresponding 1,3-cyclohexadiene analog having the generic structure: ##STR1## wherein the dashed line could be a single or a double carbon-carbon bond and processes and compositions containing same are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma, tobacco flavor and aroma and perfume and perfumed article aroma augmenting and enhancing compositions and for use in foodstuffs, tobacco, perfume and perfumed article aroma imparting compositions; produced by a process illustrated by the reaction: ##STR2## The above-mentioned compounds produce: (A) In food flavorings, sweet, black tea-like cocoa-like, damascenone-like, chocolate-like, dried fruit-like, rose petal-like aroma characteristics and sweet, black-tea-like, cocoa-like, damascenone-like, chocolate-like, tobacco-like, dried fruit-like and rose petal-like flavor characteristics; p0 (b) In tobacco, a sweet honey-like, rich, sligh