Process for the metathesis of partly fluorinated hydrocarbons

Details Process for the metathesis of partly fluorinated hydrocarbons Process for the metathesis of partly fluorinated hydrocarbons

1991-10-15

1992-09-08

Evans, Joseph E.

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

Organic compounds

Halogen containing

570136, 570153, 570128, C07C 1724, C07C 1728, C07C 2118

Patent

active

051460173

ABSTRACT:
A process is described for the reaction of at least one partly fluorinated alkene with catalysts containing tungsten complex compounds, at 10.degree. to 200.degree. C., if appropriate in the presence of at least one inert solvent. A mixture of a partly fluorinated alkene with another partly fluorinated alkene or with a non-fluorinated alkene can also be employed for the reaction. Longer-chain partly fluorinated compounds are thereby obtained which contain at least one internal C.dbd.C double bond. Ethylene or a short-chain alkene is furthermore produced and is separated off from the reaction mixture. The longer-chain partly fluorinated compounds are valuable intermediates and can be hydrogenated to give, for example, highly heat-resistant special lubricants.

REFERENCES:
patent: 4269780 (1981-05-01), Banasiak
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Feast, W. J. et al., J. of Molecular Catalysis 8:277-296 (1980).
bin Alimuniar, A. et al., Polymer 27:1281-1288 (1986).
Blackmore, P. M. et al., Polymer 27:1296-1303 (1986).
Weiss, K. et al., J. or Organometallic Chem. 355:273-280 (1988).
Weiss, K. et al., Angew. Chem 101:75-77 (1989).
[Weiss, K. et al., Chem. Abstr. 110:134664t (1989)].

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