For over half a century, thousands of tons of triphenylphosphine oxide Ph₃P(O) have been produced every year from the chemical industries as a useless chemical waste. Here we disclose efficient transformations of Ph₃P(O) with cheap resource-abundant metallic sodium finely dispersed in paraffin oil. Ph₃P(O) can be easily and selectively transformed to three reactive organophosphorus intermediates—sodium diphenylphosphinite, sodium 5H-benzo[b]phosphindol-5-olate and sodium benzo[b]phosphindol-5-ide—that efficiently give the corresponding functional organophosphorus compounds in good yields. These functional organophosphorus compounds are difficult to prepare but highly industrially useful compounds. This may allow Ph₃P(O) to be used as a precious starting material for highly valuable phosphorus compounds.

半个多世纪以来，化学工业每年都会产生数千吨三苯基氧化膦 Ph _{3 P(O) 作为无用的化学废料。}在这里，我们公开了 Ph ₃ P(O) 与廉价的资源丰富的金属钠精细分散在石蜡油中的有效转化。Ph ₃ P(O) 可以很容易地选择性地转化为三种活性有机磷中间体——二苯基亚膦酸钠、5H-苯并[b]膦醇-5-醇酸钠和苯并[b]膦醇-5-胺钠——有效地得到相应的收率高的功能性有机磷化合物。这些功能性有机磷化合物难以制备但在工业上非常有用的化合物。这可能允许 Ph ₃P(O) 可用作高价值磷化合物的珍贵原料。