Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1998052893) PROCESS FOR PRODUCING 1,2-PROPANEDIOL
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052893 International Application No.: PCT/JP1998/002166
Publication Date: 26.11.1998 International Filing Date: 18.05.1998
Chapter 2 Demand Filed: 29.10.1998
IPC:
C07C 29/58 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
29
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
58
by elimination of halogen, e.g. by hydrogenolysis, splitting-off
Applicants:
DAISO CO., LTD. [JP/JP]; 10-8, Edobori 1-chome Nishi-ku Osaka-shi Osaka 550-0002, JP (AllExceptUS)
IKAI, Kousei [JP/JP]; JP (UsOnly)
KAMEYAMA, Naotaka [JP/JP]; JP (UsOnly)
FURUKAWA, Yoshiro [JP/JP]; JP (UsOnly)
MIKAMI, Masafumi [JP/JP]; JP (UsOnly)
Inventors:
IKAI, Kousei; JP
KAMEYAMA, Naotaka; JP
FURUKAWA, Yoshiro; JP
MIKAMI, Masafumi; JP
Agent:
KISHIMOTO, Einosuke ; Inaba Building 3rd floor 13-18, Nishishinsaibashi 1-chome Chuo-ku, Osaka-shi Osaka 542-0086, JP
Priority Data:
9/12844719.05.1997JP
Title (EN) PROCESS FOR PRODUCING 1,2-PROPANEDIOL
(FR) PROCEDE DE PRODUCTION DE 1,2-PROPANEDIOL
Abstract:
(EN) A process for producing 1,2-propanediol or optically active isomers thereof from a readily available starting material in high yields at a low cost. The process comprises catalytically hydrogenating a 3-halogeno-1,2-propanediol of general formula (I) in a C2 or higher alcoholic solvent in the presence of an at least equivalent of a base to give 1,2-propanediol of formula (II). In formula (I), X represents a halogen atom.
(FR) L'invention concerne un procédé pour produire, avec un haut rendement et de faibles coûts, du 1,2-propanediol ou des isomères optiquement actifs de ce dernier, à partir d'un matériau de départ facilement disponible. Ce procédé consiste à hydrogéner par voie catalytique un 3-halogéno-1,2-propanediol, de formule générale (I) dans un solvant alcoolique contenant au moins deux atomes de carbone, en présence d'au moins un équivalent d'une base pour donner un 1,2-propanediol de formule (II). Dans la formule (I), X représente un atome d'halogène.
front page image
Designated States: CA, JP, KR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP1020421US6156941JP3435475CA2290496