Synthetic Uses of Phosphine-Halogenocarbon Reactions

Synthetic Uses of Phosphine-Halogenocarbon Reactions.—This is a field which has attracted an increasing amount of effort in recent years, largely due to the extensive studies by Appel and his colleagues. Much of this work is summarized in a review103 which covers the principles and synthetic applications of reactions involving a tertiary phosphine and carbon tetrachloride. 

The third paper in this group106 is concerned with the isolated triphenylphosphine-carbon tetrachloride system, and the authors show how these compounds react only in the presence of small amounts of polar impurities, to produce initially the salt 

Miscellaneous.—Hydridofluorophosphates have been prepared for the first time, and the anion (129) has been found to have an octahedral structure, with hydrogens trans.116 Phosphorus pentafluoride forms an adduct with biscyclopentadienyl titanium difluoride.116 The phosphorane (130) has been prepared as shown.117 

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