Reaction of unsaturated phosphonate monoesters with bromo- and iodo(bis-collidine) hexafluorophosphates
作者:Virginie André、Hind Lahrache、Sylvie Robin、Gérard Rousseau
DOI:10.1016/j.tet.2007.07.032
日期:2007.10
Reaction of unsaturated phosphonate monoesters with bromo- and iodo(bis-collidine) hexafluorophosphates are reported to lead to the formation of five- to seven-membered phostones by exo mode cyclizations. When the chains of the unsaturated phosphonate monoesters are substituted in α of the double bond by a dioxolane group endo mode cyclizations are observed. These cyclizations give rise to the formation
据报道,不饱和膦酸酯单酯与溴代和碘代(双可力丁)六氟磷酸酯的反应可通过外型模式环化导致形成五元至七元的磷脂。当不饱和膦酸酯单酯的链在双键的α中被二氧戊环基团取代时,观察到内模环化。这些环化导致形成1,2-氧杂磷杂环戊烷-2-氧化物和1,2-氧杂磷杂环丁烷-2-氧化物。