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US 4,374,782 AGranted
Synthesis of trifluoroacetyl fluoride
AssigneeAllied Corporation
InventorsLouis G. Anello, Michael Van Der Puy, Martin A. Robinson, Richard E. Eibeck
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AssigneeAllied Corporation
InventorsLouis G. Anello, Michael Van Der Puy, Martin A. Robinson, Richard E. Eibeck
Estimating the term…
A process for the preparation of trifluoroacetyl fluoride is disclosed, which comprises reacting, in the liquid phase, hexafluorothioacetone dimer in an aprotic solvent with at least a catalytic amount of an alkali metal fluoride in the presence of an oxidizing agent selected from the group consisting of Ag.sub.2 O, oxides of Pb, Sn, Ni, Co and Fe and M.sub.2 S.sub.2 O.sub.8 wherein M is an alkali metal. The preferred aprotic solvent is dimethylformamide; the preferred alkali metal fluoride is KF; and the preferred oxidizing agents are NiO, PbO.sub.2, and M.sub.2 S.sub.2 O.sub.8 wherein M is Na or K.
A process for the preparation of trifluoroacetyl fluoride, which comprises reacting, in the liquid phase under substantially dry conditions and at elevated temperatures, hexafluorothioacetone dimer in an aprotic solvent containing at least a catalytic amount of an alkali metal fluoride with an oxidizing agent selected from the group consisting of oxides of Pb, Sn, Ni, Co and Fe and M.sub.2 S.sub.2 O.sub.8 wherein M is an alkali metal.
Dependencies are inferred from the claim text.