[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
atom-efficient nitrenetransfer reagents in the (porphyrin)ruthenium-catalyzed amination of olefins. Several azides, olefins and [Ru(porphyrin)CO] complexes were tested to investigate the scope and limits of the reaction. Quantitative yields and short reaction times were achieved by using terminal olefins and aryl azides bearing electron-withdrawing groups on the aryl moiety. The reactions were influenced
Synthesis and catalytic activity of μ-oxo ruthenium(IV) porphyrin species to promote amination reactions
作者:Paolo Zardi、Daniela Intrieri、Daniela Maria Carminati、Francesco Ferretti、Piero Macchi、Emma Gallo
DOI:10.1142/s1088424616500814
日期:2016.8
of their analogous reactivity towards aryl azides to give the same catalytically active bis-imido species RuVI(TPP)(ArN)2. The reaction of [RuIV(TPP)(OCH[Formula: see text]]2O with Ph3CN3 or (CH[Formula: see text]SiN3 afforded [RuIV(TPP)(N[Formula: see text]]2O which was fully characterised, its molecular structure was also determined by single crystal X-ray analysis.
the synthesis of iron and ruthenium glycoporphyrins and their catalytic activity in promoting cyclopropanations and aziridinations by using diazo compounds and arylazides as carbene and nitrene precursors, respectively. The number and location of carbohydrate units on the porphyrin skeleton modulated the shapeand diasteroselectivity of the reactions. Interestingly, while iron(III) glycoporphyrins
鉴于环丙烷和氮丙啶作为合成结构单元以及生物和药物化合物中的活性部分的相关性,开发用于获得这些产品的可持续合成程序仍然是一项重大挑战。在此,我们报告了铁和钌糖卟啉的合成及其通过使用重氮化合物和芳基叠氮化物作为卡宾和氮烯前体分别促进环丙烷化和氮丙啶化的催化活性。卟啉骨架上碳水化合物单元的数量和位置调节了反应的形状和非对映选择性。有趣的是,虽然铁 (III) 糖卟啉在烯烃环丙烷化反应中表现出良好的性能,但钌 (II) 配合物在氮丙啶化反应中表现更好。
Allylic Amination and Aziridination of Olefins by Aryl Azides Catalyzed by Co
<sup>II</sup>
(tpp): A Synthetic and Mechanistic Study
CoII(tpp) catalyzes the reaction of aromatic azides (ArN3) with nonactivated olefins to yield allylic amines or aziridines in moderate-to-good yields. The chemoselectivity of the catalytic reaction is particularly high. Depending on the substrate employed, allylic amines or aziridines can be obtained. The reaction mechanism was investigated, and the reaction proceeds through reversible coordination