Synthese de tetra oxydes de phosphine macrocycliques a partir des bisphosphoniums bis oxydes de phosphine correspondants
作者:M. Vincens、J.T. Grimaldo-Morön、M. Vidal
DOI:10.1016/s0040-4020(01)90498-3
日期:1991.1
Macrocyclisation of halogenated phosphine dioxides with bis (diphenylphosphino)-1,3 propane yields new bifunctionnal macrocycles 4, 5 with 4 phosphorus atoms in the ring. Application of a new methodology, via a bridge protection leads after an alkaline hydrolysis to homologous phosphine tetra oxides in good yields. Macrocyclic phosphine polyoxides with a two carbon bridging unit between the phosphorus atoms, a system difficult to prepare by other methods, can be obtained satisfactorily.