An Environmentally Friendly Oxidation System for the Selective Oxygenation of Aldimines to Oxaziridines with Anhydrous TBHP and Alumina-Supported MoO3 as a Recyclable Heterogeneous Catalyst
作者:Sweety Singhal、Suman L. Jain、V. V. D. N. Prasad、Bir Sain
Atom economical synthesis of N-alkylbenzamides via the iron(<scp>iii</scp>) sulfate catalyzed rearrangement of 2-alkyl-3-aryloxaziridines in water and in the presence of a surfactant
作者:Jamil Kraïem、Thierry Ollevier
DOI:10.1039/c6gc03589b
日期:——
A green and mild synthetic route to N-alkylbenzamides involves eco-friendly one pot synthesis of 2-alkyl-3-aryloxaziridines from N-alkylamines and benzaldehydes followed by iron(III) sulfate catalyzed rearrangement to the corresponding amides in...
The straightforward synthesis of N,N-disubstituted formamides using a combination of 1,1,1,3,3,3-hexafluoroispropanol (HFIP) and H2O2 is described. The unique features of HFIP allowed the utilization of a green oxidant such as H2O2, and the products, arising from an oxidation–rearrangement sequence, were obtained in good to high yields under smooth reaction conditions.
描述了使用1,1,1,3,3,3-六氟异丙醇(HFIP)和H 2 O 2的组合直接合成N,N-二取代甲酰胺。HFIP的独特功能允许利用绿色氧化剂(例如H 2 O 2),并且在平稳的反应条件下,以高至高收率获得了由氧化重排序列产生的产物。
Synthesis of Dihydrobenzisoxazoles by the [3 + 2] Cycloaddition of Arynes and Oxaziridines
作者:Arif Kivrak、Richard C. Larock
DOI:10.1021/jo101656c
日期:2010.11.5
unusual cleavage of the C−O bond of the oxaziridine and tolerates a variety of substituents on the oxaziridine and the o-(trimethylsilyl)aryl triflate to form aryl-, heteroaryl-, alkyl-, and naphthyl-substituted dihydrobenzisoxazoles. The resulting halogen-substituted dihydrobenzisoxazoles are readily elaborated to more complex products using palladium-catalyzed crossing-coupling processes.
An Inexpensive and Selective Oxygenation of<i>N</i>-Alkyl Imines to Oxaziridines
作者:B. Vittal Rao、M. Shailaja、A. Manjula
DOI:10.1055/s-2005-865219
日期:——
A range of N-alkyl imines was oxidised to corresponding oxaziridines in a highly selective manner with sodium tungstate-30% H2O2 in acetonitrile under mild conditions.