Preparation and Properties of Fluorenylidene(phenyl)phosphines Bearing Bulky Groups with Electron-Donating Substituents in the Ortho Position on the Phenyl Group
Fluorenylidene(phenyl)phosphines having bulky substituents with an electron-donating group in the o-position on the phenyl group were prepared and their properties were compared. The prepared materials included 2,4-di-t-butyl-6-methoxyphenyl, 2,4-di-t-butyl-6-(phenoxymethyl)phenyl, 2,4-di-t-butyl-6-(dimethylamino)phenyl, or 2,4-di-t-butyl-6-(2-phenylethyl)phenyl. The diphosphenes and dithioxophosphoranes
Preparation and Properties of Stabilized Thioxophosphine Sulfides Bearing the 4-<b><i>t</i></b>-Butyl-2,6-bis(dialkylaminomethyl)phenyl or the 2,4-Di-<b><i>t</i></b>-butyl-6-(dialkylaminomethyl)phenyl Substituents
Stabilized thioxophosphine sulfides bearing the 4-t-butyl-2,6-bis(dialkylaminomethyl)phenyl or the 2,4-di-t-butyl-6-(dialkylaminomethyl)phenyl group, as well as their 15N labeled analogs, were prepared. Intramolecular interaction between the nitrogen and the phosphorus atoms was investigated, mainly by means of 31P NMR and 1H NMR spectroscopic studies.