66922-83-6Relevant articles and documents
Process for purifying 1,1,1,5,5,5-hexafluoroacetylacetone
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, (2008/06/13)
The invention relates to a process for purifying a crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate containing an impurity. The process includes bringing the crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate into contact with a poor solvent in which 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate is substantially insoluble, thereby removing the impurity from the crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate. Alternatively, the process includes precipitating crystals of 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate from a solution of the crude 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate. Thus, it is possible to produce 1,1,1,5,5,5-hexafluoroacetylacetone dihydrate of high purity. This product makes it easy to produce 1,1,1,5,5,5-hexafluoroacetylacetone of high purity.
Process for producing 1,1,1,5,5,5-hexafluoroacetylacetone
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, (2008/06/13)
The invention relates to a process for producing a process for producing 1,1,1,5,5,5-hexafluoroacetylacetone. This process includes (a) hydrolyzing a metal complex of 1,1,1,5,5,5-hexafluoroacetylacetone into a 1,1,1,5,5,5-hexafluoroacetylacetone hydrate; and (b) dehydrating the hydrate into the 1,1,1,5,5,5-hexafluoroacetylacetone. It is possible by this process to recover 1,1,1,5,5,5-hexafluoroacetylacetone with high purity from a material containing a metal complex of 1,1,1,5,5,5-hexafluoroacetylacetone.