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US 4,179,448 AGranted
Spirane derivatives useful as perfuming and flavor-modifying ingredients
AssigneeFirmenich SA
InventorsKarl-Heinrich Schulte-Elte, Peter Fankhauser, Gunther Ohloff
Life of this patent
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Abstract
New spirane derivatives useful as odor- and flavor-modifying ingredients for preparing perfumes, perfumed products, for the manufacture of artificial flavors or for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products.
Claims3
A compound having the formula ##STR7## wherein one of the symbols R represents a methyl group and the other a hydrogen atom.
2,6,9,10-Tetramethyl-1-oxa-spiro[4.5]deca-3,6-diene.
2,6,7,10-Tetramethyl-1-oxa-spiro[4.5]deca-3,6-diene.
Dependencies are inferred from the claim text.