A new protocol for the dearylation of arylphosphine oxides was developed using sodium hydride (NaH) in the presence of lithium iodide (LiI). The transient sodium phosphinite could be functionalized with a range of electrophiles in a one-pot fashion.
report a photocatalyzed radical difunctionalization of acetylene for the rapid synthesis of C2-linked phosphine compounds. The reaction was initiated by addition of a phosphinoyl radical, followed by two cascade transformations. One involves a double addition for the formation of DPPE-dioxide analogues and in the other the intermediate vinylphosphine oxide is intercepted by a radical formed from an oxoheterocycle