Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethan

Details Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethan Process for the preparation of 1,1,1-trifluoro-2-2-dichloroethan

1993-02-26

1993-10-19

Siegel, Alan

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

Organic compounds

Halogen containing

C07C 1700

Patent

active

052547710

ABSTRACT:
The invention relates to a process for the preparation of 1,1,1-trifluoro-2,2-dichloroethane by chlorinating 1,1,1-trifluoro-2-chloroethane, in which the chlorination is carried out under an elevated pressure. The pressure is preferably 10 to 400 bar, particularly 50 to 250 bar. If the reaction is initiated by heat, it is preferably carried out at 200.degree. to 300.degree. C. If it is initiated by a free-radical starter, the reaction is preferably carried out at 150.degree. to 250.degree. C.

REFERENCES:
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McBee, E. T. et al., Ind. and Eng. Chem. 39:409-411 (1947).
Georg-Thieme Verlag, Stuttgart, Germany (4th Ed. 1962) p. 596.

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