Procédé pour la préparation de cétones insaturées

• Main Authors: OHLOFF,GUENTHER,DR, STOLL,MAX,DR, KOVATS,ERWIN,DR, DEMOLE,EDOUARD,DR
• Format: Patent
• Language: French
• Published: 15.11.1970
• Edition: 1
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; APPARATUS THEREFOR; BAKERY PRODUCTS; BAKING; CANDLES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CHEWING GUM; CIGARETTES; CIGARS; COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; COFFEE; CONFECTIONERY; DETERGENT COMPOSITIONS; DETERGENTS; EDIBLE DOUGHS; ESSENTIAL OILS; FATTY ACIDS THEREFROM; FODDER; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; GENERAL METHODS OF ORGANIC CHEMISTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; ICE-CREAM; MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING ORCHEWING; MANUFACTURE, PREPARATION, OR INFUSION THEREOF; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PERFUMES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREPARATION THEREOF; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; PRESERVATION THEREOF; PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS; RECOVERY OF GLYCEROL; RESIN SOAPS; SMOKERS' REQUISITES; SNUFF; SOAP OR SOAP-MAKING; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; TEA; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR RELEVANT APPARATUS; THEIR SUBSTITUTES; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; TOBACCO; TRANSPORTING; TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BYADDITION OF MATERIALS; USE OF SINGLE SUBSTANCES AS DETERGENTS

1,240,310. Cycloolefinic unsaturated alcohols. R. FIRMENICH, G. FlRMENICH, R. E. FIRMENICH and F. H. FIRMENICH, [trading as FIRMENICH & CIE.]. 7 Nov., 1968 [9 Nov., 1967; 1 Nov., 1968], No. 3392/71. Divided out of 1,240,309. Heading C2C. The invention comprises compounds of the general formulµ in which the dotted lines represent a double bond in either the 1- or 2-position in the ring. They may be prepared by reacting α- or (#-cyclocitral with an organometallic compound of formula ME-CH=CH-CH 3 or ME-C=C-CH 3 , in which ME is a metal function, e.g. Li- or BrMg-, and hydrolysing the product.