Tags: Chemical Compound, Chemical Substance.
Phosphole is the organic compound with the chemical formula C4H4PH; it is the phosphorus analog of pyrrole. The term phosphole also refers to substituted derivatives of the parent heterocycle. These compounds are of theoretical interest but also serve as ligands for transition metals and as precursors to more complex organophosphorus compounds.The first phosphole pentaphenylphosphole was reported in 1953 and the parent phosphole itself was first described in 1987.
