FLUOROBUTENE DERIVATIVES AND PROCESS FOR PRODUCING SAME

Title:

FLUOROBUTENE DERIVATIVES AND PROCESS FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO2004096737

Kind Code:

A3

Abstract:

The present invention provides novel compounds, 2, 4,4,4-tetrafluoro-1-butene and (E)- and (Z)-1,1,1,3-tetrafluoro-2 butenes. Furthermore, the present invention provides the following novel first and second processes for producing 2,4,4,4-tetrafluoro-1-butene, (E)- and (Z)-1,1,1,3-tetrafluoro-2-butenes, and 1,1,3-trifluorobutadiene. The first process is a process for producing 2,4,4,4-tetrafluoro-1-butene by heating 1,1,1,3,3-pentaflurobutane at from about 200°C to about 700°C. The second process is a process for producing (E)- and (Z)-1,1,1,3-tetrafluoro-2-butenes by bringing 1,1,1,3,3-pentafluorobutane with a base. By the first and second processes, it is possible to obtain respective target fluorobutenes with high selectivity. In third to fifth processes, 2,4,4,4-tetrafluoro-1-butene, (E)- and (Z)-1,1,1,3-tetrafluoro-2-butene, and 1,1,3,-trifluorobutadiene can be produced by heating 1,1,1,3,3-pentafluorobutane in the presence of a catalyst. This catalyst can be regenerated by the contact with a halogen-containing gas in sixth process.

Inventors:

ALTY ADAM C (US)
DU BOISSON RICHARD A (US)

Application Number:

PCT/US2004/013029

Publication Date:

May 26, 2005

Filing Date:

April 28, 2004

Export Citation:

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Assignee:

CENTRAL GLASS CO LTD (JP)
ALTY ADAM C (US)
DU BOISSON RICHARD A (US)

International Classes:

C07C17/25; C07C21/18; C07C21/20; C07C; (IPC1-7): C07C21/18; C07C17/25

Foreign References:

US2599631A

1952-06-10

Other References: