METHOD FOR PREPARING 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE Russian patent published in 2005 - IPC

Abstract RU 2246478 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: method for preparing 1,2,3,4-tetrachlorohexafluorobutane involves mixing 1-iodo-1,2-dichlorotrifluoroethane with CH₂Cl₂ and zinc powder in organic solvent medium. Process is carried out by continuous dosing a polar organic solvent to mixture containing zinc, 1-iodo-1,2-dichlorotrifluoroethane and CH₂Cl₂ and maintaining reaction temperature in the range 0-30^oC. Method is simple and provides elevating the yield of the end product.

EFFECT: improved preparing method.

2 cl, 1 tbl, 1 ex

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RU 2 246 478 C1

Authors

Ponomarev V.G.

Rimarenko V.S.

Tiunov A.V.

Dates

2005-02-20—Published

2003-07-01—Filed