Cyclische Oxyphosphorane mit dem Spinlabel 4-Oxy-1-oxyl-2.2.6.6-tetramethylpiperidin / Spin-Labeled Cyclic Oxyphosphoranes 4-Oxy-1-oxyl-2,2,6,6-tetramethylpiperidine

Abstract

Abstract Several spin-labeled oxyphosphoranes have been prepared by oxydative addition of biacetyl and hexafluoroacetone to phosphites containing the 4-oxy-1-oxyl-2,2,6,6-tetra-methylpiperidine group. The new compounds have been characterised by ESR and 31 P NMR spectroscopy as well as by mass spectra.