Production of hexafluoroacetone and its oxime

Details Production of hexafluoroacetone and its oxime Production of hexafluoroacetone and its oxime

1994-11-18

1995-11-14

Reamer, James H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

568404, C07C24906

Patent

active

054668794

ABSTRACT:
A method of making hexafluoroacetone from hexafluoroacetone oxime comprising heating hexafluoroacetone oxime (or solvent complex thereof) with a concentrated mineral acid to yield hexafluoroacetone. Also a method of making hexafluoroacetone oxime from hexafluoroisobutyroyl carbanion alkylammonium salts. The oxime can be prepared by reacting the salts in solvent with an alkali or alkaline earth metal nitrite and subsequently decarboxylating and hydrolyzing the reaction product, or alternatively, reacting the salts in a solvent with dinitrogen tri- or tetra-oxide and subsequently decarboxylating and hydrolyzing the reaction product.

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