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US 2009/0156869 A1Published application
Processes for the synthesis of 2-chloro-1,1,1,3,3,4,4,4-heptafluoro-2-butene and hexafluoro-2-butyne
AssigneeE. I. Du Pont de Nemours and Company
InventorMario Joseph Nappa
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Abstract
Disclosed is a process comprising reacting CF3CCl2CF2CF3 (CFC-318ma) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CCl=CFCF3(CFC-1317mx). Also disclosed is a process comprising reacting CF3CCl═CFCF3 (CFC-1317mx) with hydrogen in the presence of a dehalogenation catalyst to produce CF3C≡CCF3 (hexafluoro-2-butyne). Hexafluoro-2-butyne can be used to produce CF3CH═CHCF2CF3 (1,1,1,4,4,5,5,5-octafluoro-2-pentene).
Claims7
A process comprising:
- reacting CF3CCl2CF2CF3 (CFC-318ma) with hydrogen in the presence of a dehalogenation catalyst to produce CF3CCl═CFCF3 (CFC-1317mx).
A process comprising:
- reacting CF3CCl═CFCF3 (CFC-1317mx) with hydrogen in the presence of a dehalogenation catalyst to produce CF3C≡CCF3 (hexafluoro-2-butyne).
Dependencies are inferred from the claim text.