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1. (WO1992010503) PROCESS FOR THE PREPARATION OF 3,5-DIHYDROXY 6-OXO HEXANOIC ACID
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010503 International Application No.: PCT/FR1991/000991
Publication Date: 25.06.1992 International Filing Date: 10.12.1991
Chapter 2 Demand Filed: 27.03.1992
IPC:
C07C 67/31 (2006.01) ,C07C 67/313 (2006.01) ,C07F 7/18 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
67
Preparation of carboxylic acid esters
30
by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
31
by introduction of functional groups containing oxygen only in singly bound form
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
67
Preparation of carboxylic acid esters
30
by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
313
by introduction of doubly bound oxygen containing functional groups, e.g. carboxyl groups
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
F
ACYCLIC, CARBOCYCLIC, OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
7
Compounds containing elements of the 4th Group of the Periodic System
02
Silicon compounds
08
Compounds having one or more C-Si linkages
18
Compounds having one or more C-Si linkages as well as one or more C-O-Si linkages
Applicants:
RHONE-POULENC RORER S.A. [FR/FR]; 20, avenue Raymond-Aron F-92160 Antony, FR (AllExceptUS)
LEON, Patrick [FR/FR]; FR (UsOnly)
MASSONNEAU, Viviane [FR/FR]; FR (UsOnly)
RADISSON, Xavier [FR/FR]; FR (UsOnly)
Inventors:
LEON, Patrick; FR
MASSONNEAU, Viviane; FR
RADISSON, Xavier; FR
Agent:
PILARD, Jacques; Rhône-Poulenc Rorer S.A. 20, avenue Raymond-Aron F-92165 Antony Cédex, FR
Priority Data:
90/1547111.12.1990FR
Title (EN) PROCESS FOR THE PREPARATION OF 3,5-DIHYDROXY 6-OXO HEXANOIC ACID
(FR) PROCEDE DE PREPARATION DE DERIVES DE L'ACIDE DIHYDROXY-3,5 OXO-6 HEXANOIQUE
Abstract:
(EN) Process for the preparation of derivatives of 3,5-dihydroxy 6-oxo hexanoic acid having general formula (I) based on a dihydroxyacetal having general formula (II). In general formuli (I) and (II), R1 is an alkyl radical (1 to 4 carbon atoms), R is an alkyl radical (1 to 4 carbon atoms) or benzyl and P1 is a hydroxy function protective grouping.
(FR) Procédé de préparation de dérivés de l'acide dihydroxy-3,5 oxo-6 hexanoïque de formule générale (I) à partir d'un dihydroxyacétal de formule générale (II). Dans les formules générales (I) et (II), R1 représente un radical alcoyle (1 à 4 atomes de carbone), R représente un radical alcoyle (1 à 4 atomes de carbone) ou benzyle et P1 représente un groupement protecteur de la fonction hydroxy.
Designated States: AU, CA, JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, MC, NL, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
AU1991091233