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

In a stainless steel autoclave, 40 g of 1,1,1,4,4,4-hexafluoro-2-chloro-2-butene in 300 ml of ethanol were hydrogenated with hydrogen in the presence of 12 g of potassium hydroxide and 25 g of Raney nickel for 3 hours at 20° C. and another 1 hour at 100° C. at a pressure of from 30 to 40 bar. The solid components were then removed from the reaction mixture by filtration and the remaining liquid was distilled to give 16 g of 1,1,1,4,4,4-hexafluorobutane having a boiling point of 25°-30° C. at 1013 mbar. The mass spectrum showed a molecular ion at m/e 166.

1. customThe solid components were then removed from the reaction mixture by filtration
2. distillationthe remaining liquid was distilled

ORD record

ord-2050e1b3e6fa446d89c89f99ed642da0

Source dataset

uspto-grants-1990_02

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US04902839