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1. (WO1991008183) METHOD FOR PRODUCING DICHLOROPENTAFLUOROPROPANES
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008183 International Application No.: PCT/JP1990/001581
Publication Date: 13.06.1991 International Filing Date: 05.12.1990
IPC:
C07C 17/278 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
17
Preparation of halogenated hydrocarbons
26
by reactions involving an increase in the number of carbon atoms in the skeleton
272
by addition reactions
278
of only halogenated hydrocarbons
Applicants:
ASAHI GLASS COMPANY LTD. [JP/JP]; 1-2, Marunouchi 2-chome Chiyoda-ku Tokyo 100, JP (AllExceptUS)
OHNISHI, Keiichi [JP/JP]; JP (UsOnly)
OKAMOTO, Hidekazu [JP/JP]; JP (UsOnly)
TANUMA, Toshihiro [JP/JP]; JP (UsOnly)
YANASE, Koichi [JP/JP]; JP (UsOnly)
KAWASAKI, Toru [JP/JP]; JP (UsOnly)
TAKEI, Ryutaro [JP/JP]; JP (UsOnly)
Inventors:
OHNISHI, Keiichi; JP
OKAMOTO, Hidekazu; JP
TANUMA, Toshihiro; JP
YANASE, Koichi; JP
KAWASAKI, Toru; JP
TAKEI, Ryutaro; JP
Agent:
YAMAMOTO, Ryozo ; Torimoto Kogyo Bldg., 38 Kanda-Higashimatsushitacho Chiyoda-ku Tokyo 101, JP
Priority Data:
1/31425205.12.1989JP
1/31425305.12.1989JP
1/32733819.12.1989JP
2/20130531.07.1990JP
2/4723201.03.1990JP
2/5483908.03.1990JP
Title (EN) METHOD FOR PRODUCING DICHLOROPENTAFLUOROPROPANES
(FR) PROCEDE DE PRODUCTION DE DICHLOROPENTAFLUOROPROPANES
Abstract:
(EN) A method for producing a dichloropentafluoropropane, which comprises reacting dichlorofluoromethane (R21) with tetrafluoroethylene (4F) in the presence of a Lewis acid catalyst for addition reaction to obtain dichloropentafluoropropane, wherein a halide containing at least one element selected from the group consisting of Sb, Nb, Ta, B, Ga, In, Zr, Hf and Ti, or AlBr3, or AlI3, is used as the Lewis acid.
(FR) Procédé de production d'un dichloropentafluoropropane consistant à faire réagir le dichlorofluorométhane (R21) avec le tétrafluoroéthylène (4F) en présence d'un catalyseur d'acide de Lewis destiné à la réaction par addition pour obtenir le dichloropentafluoropropane. Selon le procédé, l'on utilise comme acide de Lewis un halogénure contenant au moins un élément sélectionné dans le groupe qui est constitué de Sb, Nb, Ta, B, Ga, In, Zr, Hf, et Ti, ou AlBr3, ou AlI3.
Designated States: CA, KR, US
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:
EP0456841CA2046270KR1019920701094