REACTION DES LITHIENS AVEC LES ORGANOPHOSPHORES. REACTION D'ADDITION DU t-BUTYLLITHIUM SUR LE NOYAU BENZENIQUE DES SELS DE PHENYLPHOSPHONIUMS

Article abstract of DOI:10.1016/0022-328X(83)80033-3

A new reaction of organolithium compounds with phosphonium salts is desciribed; reaction of t-butyllithium with dibenzylaminophosphonium or tetraphenylphosphonium bromides takes place through addition of the t-butyl group on a benzene ring at the position para to the phosphorus atom, the ylid formed reacts in a characteristic Wittig reaction with p-tolylaldehyde.