Fluorobutene derivatives and process for producing same

Details Fluorobutene derivatives and process for producing same Fluorobutene derivatives and process for producing same

2007-08-21

2007-08-21

Richter, Johann (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

Reexamination Certificate

active

11506963

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 and (E)- and (Z)-1,1,1,3-tetrafluoro-2-butenes. The first process is a process for producing 2,4,4,4-tetrafluoro-1-butene by heating 1,1,1,3,3-pentafluorobutane 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.

REFERENCES:
patent: 2480560 (1949-08-01), Downing et al.
patent: 2599631 (1952-06-01), Harmon et al.
patent: 2750431 (1956-06-01), Tarrant et al.
patent: WO 2004/058827 (2004-07-01), None
Haszeldine et al., addition of free radicals to unsaturated systems, (Journal of Chemical Society (1954) 2040-2042.
Anderson et al., Diels-Alder reaction, (Journal of Chemical [section] C: (1969), (2), 211-217.
European Search Report dated Aug. 31, 2006 (three (3) pages).

Affiliated with

Also associated with

Rating

Fluorobutene derivatives and process for producing same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorobutene derivatives and process for producing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorobutene derivatives and process for producing same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3893513