Preparation and evaluation of nitrene precursors (PhI=NSO2Ar) for the copper-catalyzed aziridination of olefins
作者:Mikael J. Södergren、Diego A. Alonso、Ashutosh V. Bedekar、Pher G. Andersson
DOI:10.1016/s0040-4039(97)01589-x
日期:1997.9
of different [N-(arenesulfonyl)imino]phenyliodinones is described, along with an evaluation of their utility as nitrene precursors for the copper-catalyzed aziridination of different olefins. The best results were obtained with p-NO2-C6H4SO2N=IPh and p-MeO-C6H4SO2N=IPh, both of which were found superior to PhI=NTs, which previously has been the reagent of choice for this type of reaction. The corresponding
描述了不同的[ N-(芳烃磺酰基)亚氨基]苯基碘丁酮的制备,以及对它们作为用于铜催化的不同烯烃的氮烯前体的效用的评价。使用p -NO 2 -C 6 H 4 SO 2 N = IPh和p -MeO-C 6 H 4 SO 2 N = IPh获得了最佳结果,这两个结果均优于以前被认为是PhI = NTs的情况。这类反应的选择试剂。使用1.0当量的烯烃和1.5当量的腈前体,可以以良好至极好的收率(60-99%)获得相应的氮丙啶衍生物。
[FeIII(F20-tpp)Cl] Is an Effective Catalyst for Nitrene Transfer Reactions and Amination of Saturated Hydrocarbons with Sulfonyl and Aryl Azides as Nitrogen Source under Thermal and Microwave-Assisted Conditions
作者:Yungen Liu、Chi-Ming Che
DOI:10.1002/chem.201000581
日期:2010.9.10
[FeIII(F20‐tpp)Cl] (F20‐tpp=meso‐tetrakis(pentafluorophenyl)porphyrinato dianion) is an effective catalyst for imido/nitrene insertion reactions using sulfonyl and arylazides as nitrogensource. Under thermal conditions, aziridination of aryl and alkyl alkenes (16 examples, 60–95 % yields), sulfimidation of sulfides (11 examples, 76–96 % yields), allylic amidation/amination of α‐methylstyrenes (15