Lead tetrafluoride

Like all the lead tetrahalides, lead tetrafluoride [7783-59-7] is very reactive. It is relatively the most stable halide, however. PbF is a white crystalline... 

Lead tetrafluoride, generated in situ from lead dioxide and hydrogen fluonde, can replace benzylic hydrogen by fluonne [3] Under sirmlar conditions phenol is simultaneously oxidized to 4,4-difluoro-2,5-cyclohexadienone [4 (equations 3 and 4)... 

Lead tetrafluoride is used as a fluorinating agent for hydrocarbons. 

Lead tetrafluoride is readily hydrolyzed by moisture, turning brown and forming lead dioxide ... 

When an alkali metal fluoride or ammonium fluoride is added to a solution of lead tetrafluoride in concentrated hydrofluoric acid, salts of fluoplumbic acid are obtained ... 

Lead tetraacetate oxidation, 242 Lead tetrafluoride, 452 Lindlar s catalyst, 132 Liquid deuterioammonia-O-deuterio-alcohol, 165... 

In a few isolated instances it has been possible to treat an unsaturated compound with a derivative capable of giving off free fluorine, namely, lead tetrafluoride or iodobenzenedifluoride, which are formed, respectively, from lead tetraacetate or iodosobenzene and hydrogen... 

If 1,1-diphenylethylene is treated with elemental fluorine under the same reaction conditions, C14H12F2 (compound A) is obtained in a 14% yield (accompanied by 78% of compound B). If the same compound is treated with hydrogen fluoride and lead tetrafluoride or with phenyl iodide difluoride, C14H12F2 (compound C) is produced in 27% and 47% yields, respectively. Compounds A and C are different from each other, and different from both meso- and ( )-l,2-difluoro-l,2-diphenylethane. What are the compounds A, B, and C, and how are they formed ... 

The rearrangement encountered in the fluorination of 1,1-diphenyleth-ylene with lead tetrafluoride or aryl iodide difluoride does not occur when other halogens are used. However, 1,1 -bis(p-chlorophenyl)-2,2-dichloro-ethane (VI) and l,l-bis(p-chlorophenyl)-l,2,2,2-tetrachloroethane (VII) rearrange to 1,2-bis(p-chlorophenyl)-1,2-dichloroethane (VIII) and 1,2-bis(p-chlorophenyl)-l,l,2,2-tetrachloroethane (IX), respectively, when treated with ferric chloride [7]. 

Lead tetrafluoride, PbF. In following up his classical work on lead tetraacetate, Dimroth made an exploratory study of the reaction of lead tetraacetate in chloroform solution with liquid hydrogen fluoride to generate lead tetrafluoride ... 

He found that the reaction is reversible and reaches a point of equilibrium, and so investigated reactions of Pbp4 only with olefins which do not react with lead tetraacetate, 1,1-Diphenylethylene (1) is such an olefin, and it was found to react with in situ generated lead tetrafluoride to give in moderate yield a crystalline product... 

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