Furanoid and pyranoid C14-C18- oxabicycloalkanones as...

Perfume compositions – Perfume compositions – Ring containing active ingredient

Reexamination Certificate

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C568S325000, C568S585000, C512S023000

Reexamination Certificate

active

07615526

ABSTRACT:
The present invention relates to compounds of the formula (I) and the formula (Ia)wherein R1, R2and R3mutually independently mean hydrogen or methyl, odoriferous and/or aroma substance compositions comprising one or more compounds according to the invention of the formula (I) and/or formula (Ia), perfumed products and aromatized products in each case comprising one or more compounds according to the invention of the formula (I) and/or formula (Ia), and to uses of one or more compounds according to the invention of the formula (I) and/or formula (Ia) as odoriferous and/or aroma substances and methods of producing compounds according to the invention of the formula (I) and formula (Ia).

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Behr, et al. “Synthesis of γ-Lactones from Cycloocta-1,5-diene—Starting Materials for Natural-Product Synthesis,”Eur. J. Org. Chem., 2004, pp. 3884-3892.
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