Patent ID: 6392101
Filing Date: 2002-05-21
Classification: C07C

Abstract:
A process for producing 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate, said process comprising:reacting 1,1,1-trifluoroacetone with an ester of trifluoroacetic acid to prepare a crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate containing an impurity; and bringing said cruse 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate into contact with a poor solvent in which said 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate is substantially insoluble, thereby removing said impurity from said crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate.