The selective rearrangement of oxaziridines to amides via a single electron transfer (SET) pathway is unexplored. In this study, we present a weak base-promoted selective rearrangement of oxaziridines to amides via visible-light photoredox catalysis. The developed method shows excellent functional group tolerance with a broad substrate scope and good to excellent yields. Furthermore, control experiments
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.
[Bmim]BF4-immobilized rhenium-catalyzed highly efficient oxygenation of aldimines to oxaziridines using solid peroxides as oxidants
作者:Suman L. Jain、Sweety Singhal、Bir Sain
DOI:10.1016/j.jorganchem.2007.03.004
日期:2007.6
Various rhenium-based catalysts immobilized in [bmim]BF4 were found to be efficient for oxygenation of various aldimines to the corresponding oxaziridines in excellent yields under mild conditions using solid peroxides like UHP, SPC and SPB as oxidants. Among the various rhenium-based catalysts studied, MTO was found to be most efficient. The reusability and recyclability of MTO immobilized in [bmim]BF4 was established by using it for three subsequent cycles for oxygenation of benzylidine-tert-butylamine using UHP as oxidant. (C) 2007 Elsevier B.V. All rights reserved.
Normal, abnormal and pseudo-abnormal reaction pathways for the imine-peroxyacid reaction
作者:Derek R. Boyd、Peter B. Coulter、Narain D. Sharma、W.Brian Jennings、Valerie E. Wilson
DOI:10.1016/s0040-4039(00)98582-4
日期:1985.1
Boyd, Derek R.; Coulter, Peter B.; McGuckin, M. Rosaleen, Journal of the Chemical Society. Perkin transactions I, 1990, # 2, p. 301 - 306
作者:Boyd, Derek R.、Coulter, Peter B.、McGuckin, M. Rosaleen、Sharma, Narain D.、Jennings, W. Brian、Wilson, Valerie E.