C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/716 (2006.01) C07C 9/04 (2006.01) C07C 49/04 (2006.01) C07C 67/14 (2006.01) C07C 67/343 (2006.01) C07C 67/46 (2006.01)
Patent
CA 2285059
A method for making beta ketoesters of alcoholic actives, especially perfume alcohols, by a two step process involving a first diketene reaction step and a second carboxylic acid halide reaction step. The present invention also relates to mixtures of beta ketoesters of such alcoholic actives, especially those prepared by the present manufacturing process.
L'invention concerne un procédé permettant de fabriquer des bêta céto-esters de substances actives alcooliques, en particulier d'alcools pour parfums, au moyen d'un procédé en deux phases, dont la première est une phase de réaction avec du dicétène, et la seconde une phase de réaction avec un halogénure d'acide carboxylique. La présente invention concerne également des mélanges de bêta céto-esters de telles substances actives alcooliques, en particulier des mélanges préparés selon le présent procédé de fabrication.
Hartman Frederick Anthony
Sivik Mark Robert
Kirby Eades Gale Baker
The Procter & Gamble Company
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