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Contributions to the Chemistry of Phosphorus. 237. On the Reaction of Diphosphane(4) with Peroxo Compounds: Formation of Phosphinophosphinic Acid, H2PPH(O)OH, and Bis(phosphino)phosphinic Acid, (H2P)2P(O)OH
Baudler, M.,Heumueller, H.
, (2008/10/08)
Diphosphane(4) reacts with peroxo compounds such as hydrogen peroxide, tetraline hydroperoxide, trifluoroperoxyacetic acid, and cumene hydroperoxide (which is particularly suited for preparative work) at -30°Cto furnish phosphinophosphinic acid, H2PP(O)OH (1), as the primary prod uct. Compound 1 disproportionates to a major extent in statu nascendi togive phosphanes (above all PH3) and monophosphorus acids of various oxi dation states as well as some bis(phosphino)phosphinic acid, (H2P)2P(O)OH (2). The acids 1 and 2 can be trapped and stabilized as their triethylammonium salts. The structures of these salts have been determined by spectroscopic investigations.
