2-Chloro-1,1,1,4,4,4-hexafluoro-2-butene → 1,1,1,4,4,4-Hexafluorobutane

40 g (0.2 mol) of 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene were hydrogenated in 300 ml of ethanol in the presence of 12 g of potassium hydroxide and 24 g of Raney nickel in the pressure range of from 20 to 40 bar and at a temperature from 20 to 100° C. The solid components were filtered off, the solvent was extracted with water, and the organic phase was separated and purified by distillation to give 15.5 g (47% of theory) of 1,1,1,4,4,4-hexafluorobutane. The boiling point was 25 to 27° C. at 1013 mbar.

1. filtrationThe solid components were filtered off
2. extractionthe solvent was extracted with water
3. customthe organic phase was separated
4. distillationpurified by distillation

ORD record

ord-41dd66b173a54ede8e44abb5b4f74e19

Source dataset

uspto-grants-1990_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04954666