Branched chain ketones used in augmenting or enhancing the aroma

Details Branched chain ketones used in augmenting or enhancing the aroma Branched chain ketones used in augmenting or enhancing the aroma

1982-06-04

1984-01-10

Sutto, Anton H.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

424 69, 252 86, A61K 746

Patent

active

044252641

ABSTRACT:
Described are acylated derivatives of triisobutylene defined according to the generic structures: ##STR1## wherein, in each of the molecules one of the dashed lines represents a carbon-carbon double bond and each of the other of the dashed lines represents a carbon-carbon single bond; and wherein, in each of the molecules R.sub.3 represents methyl or ethyl; uses thereof in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles (e.g., solid or liquid anionic, cationic, nonionic, zwitterionic detergents, cosmetic powders, hair sprays and the like) as well as processes for preparing same by first trimerizing isobutylene to form one or more compounds defined according to at least one of the structures: ##STR2## wherein in each of the molecules one of the dashed lines represents a carbon-carbon double bond and each of the other dashed lines represent carbon-carbon single bonds; and then reacting one or more of these trimerized isobutylene derivatives with an acyl anhydride having the structure: ##STR3## wherein, R.sub.1 and R.sub.2 are the same or different and each represents methyl or ethyl in the presence of a Lewis acid catalyst such as boron trifluoride etherate or stannic chloride thereby forming the acylated branched chain ketones of our invention defined according to at least one of the structures: ##STR4##

REFERENCES:
patent: 4374276 (1983-02-01), Boden et al.

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