Unsaturated cycloaliphatic ketones

The ketones have organoleptic properties and can be used in the perfumery industry, as ingredients in artificial essences and as additives for human and animal food, drinks, pharmaceuticals and tobacco. They have the formula : (where R1, R2 and R3 are H or one of them is a lower alkyl radical; R4, R...

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Bibliographische Detailangaben
Hauptverfasser:	OHLOFF,GUENTHER,DR, STOLL,MAX,DR, KOVATS,ERWIN,DR, DEMOLE,EDOUARD,DR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES CANDLES CHEMISTRY CIGARETTES CIGARS DETERGENTS ESSENTIAL OILS FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING METALLURGY ORGANIC CHEMISTRY PERFUMES PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS SMOKERS' REQUISITES SNUFF THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TOBACCO
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Beschreibung
Zusammenfassung:	The ketones have organoleptic properties and can be used in the perfumery industry, as ingredients in artificial essences and as additives for human and animal food, drinks, pharmaceuticals and tobacco. They have the formula : (where R1, R2 and R3 are H or one of them is a lower alkyl radical; R4, R5, R6 and R7 are H or one of them is a lower alkyl radical and n is 0 or 1). Prepn. is by oxidation of the corresponding alcohols (in posn.11) which also possess similar properties and are themselves prepd. by the addition of an organometallic cpd. of formula : Me CHn(R3) = C(R2) - CH2-nR1 (where Me is Li or BrMg) to alpha-, beta- or gamma-cyclocitral derivs. followed by hydrolysis of the resulting addn. product.