L. Brandsma et al., CLEAVAGE OF P-P BONDS IN PHOSPHORUS - AN EFFICIENT METHOD FOR THE PREPARATION OF PRIMARY ALKYLPHOSPINES, Mendeleev communications, (1), 1995, pp. 14-15
Effective cleavage of P-P bonds in red (and yellow) phosphorus can be
brought about by adding tert-butyl alcohol to a mixture of phosphorus,
lithium and liquid ammonia; subsequent addition of alkyl halides give
s primary phosphines in good to excellent yields.