1-Oxoalkyl-2-isopropylnorbornane derivatives, uses thereof in au

Details 1-Oxoalkyl-2-isopropylnorbornane derivatives, uses thereof in au 1-Oxoalkyl-2-isopropylnorbornane derivatives, uses thereof in au

1984-08-24

1985-10-29

Reamer, James H.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

568374, 568820, C07C 49115, A61K 746

Patent

active

045499829

ABSTRACT:
Described are 1-oxoalkyl-2-isopropylnorbornane derivatives defined according to the generic structure: ##STR1## wherein X represents a moiety selected from the group consisting of: ##STR2## wherein the dashed line represents a carbon-carbon double bond or a carbon-carbon single bond and wherein R.sub.1 and R.sub.2 represent hydrogen or methyl with the proviso that R.sub.1 and R.sub.2 are not both methyl, and uses thereof in augmenting or enhancing the aroma of consumable materials selected from the group consisting of perfume compositions, colognes and perfumed articles. Also described are processes for preparing said 1-oxoalkyl-2-isopropylnorbornane derivatives by means of a low temperature catalytic Diels Alder reaction or high temperature thermal Diels Alder reaction between a bicyclopentadiene derivative and 2-methyl-3- buten-5-one according to the reaction: ##STR3## wherein R represents methyl or hydrogen.

REFERENCES:
patent: 2407508 (1946-09-01), Morris et al.
patent: 2435403 (1948-02-01), Morris et al.
patent: 2706202 (1955-04-01), Bavley et al.
patent: 3250815 (1966-05-01), Houlihan
patent: 3852358 (1974-12-01), Hall et al.
Tsuboi et al., Bull. Chem. Soc. of Japan, vol. 47, pp. 1673-1677 (1974).

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