Method for manufacturing 1,1,1,3,3-pentafluoropropene

Details Method for manufacturing 1,1,1,3,3-pentafluoropropene Method for manufacturing 1,1,1,3,3-pentafluoropropene

1996-08-14

1998-03-17

Ivy, C. Warren

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

Organic compounds

Halogen containing

570142, C07C 17363

Patent

active

057289026

ABSTRACT:
A method for manufacturing 1,1,1,3,3-pentafluoropropene comprises the steps of adding 2-trifluoromethyl-3,3,3-trifluoropropionic acid under the presence of metal carbonate and/or metal hydrogencarbonate in an aprotic solvent at reaction temperature particularly from 40.degree. C. to 80.degree. C., of refining resulting reaction products to obtain 1,1,1,3,3-pentafluoropropene, and further of coexisting a desiccating agent therein.
According to the method, 1,1,1,3,3-pentafluoropropene can be manufactured through industrially efficient and cost-effective way using 2-trifluoromethyl-3,3,3-trifluoropropionic acid as a raw material.

REFERENCES:
patent: 5594159 (1997-01-01), Jackson et al.
"Syntheses of Fluoroorganic Compounds", I.L. Knunyants and G. G. Yakobson, Springer-Verlag, Berlin Heidelberg, New York, Tokyo, 1985, pp. 8-9.

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