FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for synthesis of 1,2,3,4-tetrachlorohexafluorobuatne. Method involves mixing 1-iodo-1,2-dichlorotrifluoroethane with methylene chloride and zinc powder in polar organic solvent medium that is added continuously at temperature 0-30°C. The process is carried out with simultaneous dosing polar organic solvent with zinc powder to mixture of 1-iodo-1,2-dichlorotrifluoroethane and methylene chloride. Invention provides increasing yield of the end substance to 94%.
EFFECT: improved method of synthesis.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE | 2003 |
|
RU2246478C1 |
| METHOD FOR PREPARING 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE | 2003 |
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RU2359951C1 |
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| METHOD FOR PREPARING HEXAFLUOROBUTADIENE AND 1,2-DICHLOROHEXAFLUOROCYCLOBUTANE | 2004 |
|
RU2264376C1 |
| METHOD FOR PREPARING HEXAFLUOROBUT-1,3-DIENE | 2005 |
|
RU2281278C1 |
| METHOD FOR PRODUCING PERFLUORO-4-(FLUOROSULFONYL)BUTYLVINYL ETHER | 2022 |
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RU2800857C1 |
