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1. (WO1992009590) PROCESS FOR THE PREPARATION OF $g(a)-ALKYL LACTONES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/009590 International Application No.: PCT/US1991/008745
Publication Date: 11.06.1992 International Filing Date: 25.11.1991
Chapter 2 Demand Filed: 27.06.1992
IPC:
C07D 307/33 (2006.01) ,C11B 9/00 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
D
HETEROCYCLIC COMPOUNDS
307
Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
02
not condensed with other rings
26
having one double bond between ring members or between a ring member and a non-ring member
30
with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
32
Oxygen atoms
33
in position 2, the oxygen atom being in its keto or unsubstituted enol form
C CHEMISTRY; METALLURGY
11
ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
B
PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
9
Essential oils; Perfumes
Applicants:
HENKEL CORPORATION [US/US]; 300 Brookside Avenue Ambler, PA 19002, US
Inventors:
REBROVIC, Louis; US
HARRIS, Eugene, G.; US
Agent:
DRACH, John, E.; Henkel Corporation 140 Germantown Pike Suite 150 Plymouth Meeting, PA 19462, US
VON KREISLER, Alek; Deichmannhaus am Hauptbahnhof D-5000 Köln 1, DE
Priority Data:
619,79729.11.1990US
Title (EN) PROCESS FOR THE PREPARATION OF $g(a)-ALKYL LACTONES
(FR) PROCEDE DE PREPARATION D'ALPHA-ALKYL-LACTONES
Abstract:
(EN) Process for the preparation of $g(a)-alkyl lactones by the steps of first reacting an $g(a)-acyl lactone, an aldehyde, and an alkali metal hydroxide together to form an $g(a)-alkylidene lactone, and then hydrogenating the $g(a)-alkylidene lactone.
(FR) Procédé de préparation d'$g(a)-alkyl-lactones, consistant à faire réagir entre eux une $g(a)-acyl-lactone, un aldéhyde et un hydroxyde de métal alcalin afin de former une $g(a)-alkylidène-lactone, que l'on hydrogène par la suite.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0559789JPH06503328