Susanto, W.Lam, Y.CHEMISTRY2014-06-232014-06-232011-10-28Susanto, W., Lam, Y. (2011-10-28). Oxidation reactions using polymer-supported 2-benzenesulfonyl-3-(4- nitrophenyl)oxaziridine. Tetrahedron 67 (43) : 8353-8359. ScholarBank@NUS Repository. https://doi.org/10.1016/j.tet.2011.08.05800404020https://scholarbank.nus.edu.sg/handle/10635/76713A thermally stable polymer-supported oxidant has been developed. Polymer-supported 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridine was applied to microwave-assisted reactions that occurred at high temperatures and was shown to oxidize alkenes, silyl enol ethers, and pyridines to the corresponding epoxides and pyridine N-oxides in excellent to good yields and with much shorter reaction times. It also enabled tetrahydrobenzimidazoles to be oxidatively rearranged to spiro fused 5-imidazolones in a more efficient manner. Recycling of the polymer-supported oxidant is also possible with minimal loss of activity after several reoxidations. © 2011 Elsevier Ltd. All rights reserved.EpoxideMicrowavePolymer-supported 2-benzenesulfonyl-3-(4-nitrophenyl)oxaziridinePyridine N-oxideSpiro fused 5-imidazoloneArticle000295662600019