All-carbon phosphoranes<i>via</i>difluorocarbene trapping
Vladimir O. Smirnov, Alexander D. Volodin, Аlexander А. Korlyukov, Alexander D. Dilman
Abstract
A reaction of intramolecularly disposed phosphonium and phenoxide (or thiophenoxide) fragments with difluorocarbene affording all-carbon λ5-phosphoranes is described. The presence of electron-withdrawing CHF2-groups at the phosphonium center is important for the phosphorane formation. In a phosphorane, both phenyl groups located in the equatorial positions undergo 1,2-P,C migration under thermal conditions.
Topics & Concepts
DifluorocarbeneTrappingCarbon fibersChemistryMedicinal chemistryMaterials scienceBiologyEcologyComposite materialComposite numberFluorine in Organic ChemistryChemical Synthesis and AnalysisSynthetic Organic Chemistry Methods