Mono-and dihydrophosphoranes and dihydrophosphoranates as intermediates in the reaction of phosphonium salts with LiAiH4

Article abstract of DOI:10.1080/10426509708044206

Reduction of tetraphenylphosphonium bromide with LiAlH(D)₄ at room temperature affords first the monohydrophosphorane Ph₄PH, then the dihydrophosphoranate anion [Ph₄PH₂]^- which decomposes to the dihydrophosphorane Ph₃PH₂, all of which are identified by ³¹PNMR. Reductions of other phosphonium salts appear to follow a similar path. At elevated temperatures none of these intermediates is observed and attempted isolation leads to extensive decomposition.

Full text of DOI:10.1080/10426509708044206

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Phosphorus, Sulfur, and Silicon and the
Related Elements
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MONO- AND DIHYDROPHOSPHORANES
AND DIHYDROPHOSPHORANATES AS
INTERMEDIATES In THE REACTION OF
PHOSPHONIUM SALTS WITH LiAiH4
Neil Donoghue a & Michael J. Gallagher a
a School of Chemistry, University of New South Wales , Sydney, 2052,
Australia
Published online: 04 Oct 2006.
To cite this article: Neil Donoghue & Michael J. Gallagher (1997) MONO- AND DIHYDROPHOSPHORANES
AND DIHYDROPHOSPHORANATES AS INTERMEDIATES In THE REACTION OF PHOSPHONIUM SALTS
WITH LiAiH4 , Phosphorus, Sulfur, and Silicon and the Related Elements, 123:1, 169-173, DOI:
10.1080/10426509708044206
To link to this article: http://dx.doi.org/10.1080/10426509708044206
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