A direct method for white phosphorus functionalization by hydride sources is presented. Excess BH4− in n-butylamine produces HP4− as the major P-containing species. Reaction with LiBEt3H forms the borane-stabilized phosphanide Li(PH2)(BEt3)2, which may be used to synthesize various phosphines. Triethylborane may be replaced by BH3, resulting in the formation of LiPH2(BH3)2.
K. X. Bhattacharyya, S. Dreyfuss, N. Saffon-Merceron and N. Mézailles, Chem. Commun., 2016, 52, 5179 DOI: 10.1039/C6CC01683A
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