3-Phenyl-2-tert-butyloxaziridine has been shown to behave as an oxidant under 800 MPa at 100 °C to oxidize sulfides to sulfoxides, in spite of having been reported to be inactive as an oxidant and to undergo thermal rearrangement to N-tert-butyl-α-phenylnitrone at atmospheric pressure. It has been shown that under thermal and high-pressure conditions the ability of the oxaziridine to react changes dramatically. The mechanism for the high-pressure reaction is also discussed.
Stable nitroxyl radicals with a hydrogen atom at ?-carbon atom of nitroxyl group
作者:V. A. Reznikov、I. A. Gulorov、Yu. V. Gatilov、T. V. Rybalova、L. B. Volodarsky
DOI:10.1007/bf01433978
日期:1996.2
Nitroxyl radicals containing the diphenylmethyl group as one of the substituents at the nitroxyl group are stable compounds that can be isolated in an individual state. N-(2-Hydroxy-3-methyl-2-phenylcyclohexyl)-N- diphenylmethylnitroxyl was characterized by X-ray diffraction analysis for the first time.
Efficient combination of task-specific ionic liquid and microwave dielectric heating applied to synthesis of a large variety of nitrones
作者:Hassan Valizadeh
DOI:10.1002/hc.20581
日期:——
Under mild microwave irradiation conditions and without any additional organic solvents, a largevariety of nitrones were prepared in a weak Lewis base phosphinite task-specificionicliquid (TSIL-OPPh2) in excellent yields. This catalytic TSIL was also recyclable. Under optimized microwave irradiation conditions, the reaction occurred at very shorter reaction time and higher yields in comparison with