2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanones

Details 2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanones 2-alkylidene-3,3,5(3,5,5)-trimethyl cyclopentanones

1988-03-04

1990-02-27

Reamer, James H.

Perfume compositions

Perfume compositions

Ring containing active ingredient

568379, A61K 746

Patent

active

049046403

ABSTRACT:
2-Alkylidene-3,3,5(3,5,5)-trimethylcyclopentanones corresponding to the following general formula ##STR1## in which three of the substituents R.sub.1 to R.sub.4 are CH.sub.3, one of the substituents R.sub.1 to R.sub.4 is H, and R.sub.5 is a saturated or unsaturated, linear branched C.sub.1 -C.sub.7 alkyl radical, and the double bond is in the endo position to the cyclopentanone structure. The compounds of formula (I) are useful as perfumes.

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Helvetia Chimica Acta 16, 1208 (1933).

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