Phosphorus in low-coordinate environments has long been known to exhibit chemistry more similar to carbon than nitrogen. The "carbon-copy" behavior of low-coordinate phosphorus is well-understood in the context of organic synthesis, and recent work has also demonstrated that P=C bonds can undergo addition polymerization, analogous to that seen for alkenes. Similar "diagonal" analogies to C=C bonds have not been demonstrated for metathesis reactions of P=C bonds. Alkylidene complexes (M=CHR) of the group 6 metals have proven highly successful in catalyzing olefin metathesis reactions, including the ring-opening metathesis polymerization of cyclic olefins. This talk will describe our recent efforts to develop new high oxidation state phosphinidene complexes (M=PR) of the group 6 metals that are isolobal with group 6 alkylidene species, and the examination of their reactivity in the context of metathesis.

Pursuit of high-oxidation state phosphinidene complexes of the group 6 metals for metathesis reactivity

249th National Meeting (2015)

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