Title: 6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes

Abstract: This invention is directed to terpene derivatives. More particularly, this invention relates to a mixture of isomers of the formula ##STR1## wherein R₁ and R₂, which are different from each other, are each methyl or isopropyl, the preparation thereof, and perfume compositions containing them.

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Inventors: Upadek, Horst (Erkrath, DE)
Bruns, Klaus (Krefeld-Traar, DE)

Application Number: 06/323430
Filing Date: 1981-11-20
Publication_date: 1982-09-28
Assignee: Henkel, Kgaa

Primary Class(es): 549/331 512/9
Other Classes: C07D307/94; C11B9/00; C07D307/00; C07D307/94
US Patent Ref:

4179448

December, 1979

Schulte-Elte et al.

260/346.11

Spirane derivatives useful as perfuming and flavor-modifying ingredients

Other Refs: DE2504618DE2527102

August, 1975
January, 1976

Primary Examiner: Raymond, Richard
Assistant Examiner:
Attorney: Hammond & Littell, Weissenberger and Muserlian

Claims: