Firmenich Sa

Werner Skorianetz

Gunther Ohloff

Karl-Heinrich Schulte-Elte

Walter Renold

Joseph J Becker

Hugo Strickler

Khurshid P Dastur

Ulrich P Hochstrasser

Oxygen containing tricyclic derivatives of norbornane of formula ##STR1## wherein symbol X represents a divalent radical of formula ##STR2## possess valuable organoleptic properties and consequently can be used as perfuming ingredients.

Oxygenated tricyclic derivatives of norbornane and use of same as

New oxygen containing derivatives of tricyclo[6.2.1.0.sup.2,7 ]undecane useful as perfuming or flavor-modifying ingredients in the manufacture of perfumes, perfumed articles, artificial flavors, foodstuffs, feedstuffs, beverages, pharmaceutical preparations or tobacco products. Perfume or flavoring compositions containing same as organoleptically active ingredients.

Perfuming with oxygen containing derivatives of tricyclo[6.2.1.0.sup.2,7 ]u

Oxygen containing derivatives of tricyclo[6.2.1.0.sup.2,7 ]undecane

Spirane derivatives, most of them are new, useful, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds or, beverages.

Use of spirane derivatives to improve the organoleptic properties of

Spirane derivatives, most of them are new, useful as odor-modifying ingredients for manufacturing perfumes and perfumed products, and as flavor-modifying ingredients for the manufacture of artificial flavors of for flavoring foodstuffs, animal feeds, beverages, pharmaceutical preparations and tobacco products. Process for preparing said spirane derivatives.

Spirane derivatives

Tricyclic derivatives of norbornane of formula ##STR1## WHEREIN SYMBOL X represents a divalent radical selected from the group consisting of ##STR2## THEIR PREPARATION AND THEIR USE AS PERFUMING INGREDIENTS.

Method of using norbornane derivatives in perfume compositions

Processes and compositions are described for improving, enhancing and modifying the fragrance of products including perfumes, perfume compositions and perfumed articles utilizing as effective ingredients tricyclo[5.2.1.0.sup.2,6 ]decane-methylol or one of its lower alkyl or alkenyl ester or ether derivatives.

Tricyclo[5.2.1.0.sup.2,6 ]decane-methylol or its lower alkyl or alkenyl

Use of spirane derivatives to improve perfume compositions

Method for improving, enhancing or modifying the organoleptic properties of perfumes or perfume products as well as of foodstuffs in general, beverages and tobacco, by incorporating therein an oxygenated tricyclic derivative of norbornene.

Tricyclo[6.2.1.0.sup.2,7 ]undec-9-en-3-one perfume composition

Spirane derivatives, their use and process for preparing same

Esters of certain tetramethyl and pentamethyl-1-oxa-spiro [4-5]

New polycyclic lactones useful as perfuming and odor-modifying agents in the manufacture of perfumes and perfumed articles, and as flavoring and taste-modifying agents in the aromatization of foodstuffs in general and imitation flavors for foodstuffs, beverages, animal feeds, pharmaceutical preparations and tobacco products. Novel process for the preparation of said cycloaliphatic compounds and compositions of matter relating to mixtures containing same.

Polycyclic lactones as odor- and taste-modifying agents

Process for the preparation of a diketone derivative, viz 2,2,6-trimethyl-cyclohex-5-en-1,4-dione, an organoleptically interesting ingredient for the perfumery and the flavour industry, as well as a useful intermediate for the pharmaceutical industry.

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Geneva, Switzerland

Werner Skorianetz