Reactant or reagent for synthesis of:Phosphacyclic compounds via oxidative dimerizationsEnamides via cross-couplingCyclopeptide alkaloids for use as antibacterial or cytotoxic agentsTerminal alkynes via dehydrohalogenation of aldehydesReactant for vinylcyclopropanation / cyclopentenation of strained alkenes using a sequential carborhodation processUsed as an olefination agent in the Lewis acid catalysis of electrocyclization of trienes