Polyalkyl-substituted oxocycloheptane derivatives, organoleptic uses thereof and processes for preparing same

A compound defined according to the generic structure:

• wherein X represents the moiety:
• ##STR297## wherein one of the dashed lines is a carbon-carbon double bond and the other of the dashed lines is a carbon-carbon single bond or both dashed lines are carbon-carbon single bonds;
• wherein R.sub.1 and R.sub.2 each represent H or lower alkyl;
• wherein R.sub.4 represents lower alkyl;
• wherein Y represents chloro or bromo;
• with the proviso that when the dashed line at the 4-5 position is a double bond then R.sub.2 is hydrogen and when the dashed line at the 3-4 position is a double bond, R.sub.1 is hydrogen.

A process for augmenting or enhancing the aroma of a perfume composition, perfumed article or cologne comprising the step of admixing with a perfume base, a perfumed article base or a cologne base, an aroma augmenting or enhancing quantity of at least one polyalkyl-substituted oxocycloheptane derivative composition selected from the group consisting of:

• (i) a mixture of compounds having the structures:
• ##STR298## (ii) a mixture of compounds having the structures:
• ##STR299## (iii) the compound having the structure:
• ##STR300## (iv) the compound having the structure:
• ##STR301## (v) the compound having the structure:
• ##STR302## (vi) the compound having the structure:
• ##STR303## (vii) the compound having the structure:
• ##STR304## (viii) the compound having the structure:
• ##STR305## and (ix) the compound having the structure:
• ##STR306##