An Effective [Fe<sup>III</sup>(TF<sub>4</sub>DMAP)Cl] Catalyst for C–H Bond Amination with Aryl and Alkyl Azides
作者:Yi-Dan Du、Zhen-Jiang Xu、Cong-Ying Zhou、Chi-Ming Che
DOI:10.1021/acs.orglett.8b03765
日期:2019.2.15
[FeIII(TF4DMAP)Cl] can efficiently catalyzeintermolecular sp3 C–Hamination using aryl azides and intramolecular sp3 C–Hamination of alkyl azides in moderate-to-high product yields. At catalyst loading down to 1 mol %, the reactions display high chemo- and regioselectivity with broad substrate scope and are effective for late-stage functionalization of complex natural/bioactive molecules.
Iron porphyrin catalysed light driven C–H bond amination and alkene aziridination with organic azides
作者:Yi-Dan Du、Cong-Ying Zhou、Wai-Pong To、Hai-Xu Wang、Chi-Ming Che
DOI:10.1039/d0sc00784f
日期:——
strategy for the design of C–N bond formation reactions under mild reaction conditions, the challenge being lack of selectivity as a free nitrene reactive intermediate is usually involved. Herein is described an iron(III) porphyrin catalysed sp3 C–H amination and alkene aziridination with selectivity by using organic azides as the nitrogen source under blue LED light (469 nm) irradiation. The photochemical
A soluble iron(<scp>ii</scp>)-phthalocyanine-catalyzed intramolecular C(sp<sup>3</sup>)–H amination with alkyl azides
作者:Tingjie You、Si-Hao Zeng、Jianqiang Fan、Liangliang Wu、Fangyuan Kang、Yungen Liu、Chi-Ming Che
DOI:10.1039/d1cc04573c
日期:——
Herein, we describe a soluble iron(II)-phthalocyanine, [FeII(tBu4Pc)(py)2] (Pc = phthalocyaninato(2–)), as an effective catalyst in intramolecularC(sp3)–H bond amination, with alkyl azides as the nitrogen source, to afford the amination products in moderate to excellent yields with a broad substrate scope.
在此,我们描述了一种可溶性铁 ( II )-酞菁 [Fe II ( t Bu 4 Pc)(py) 2 ] (Pc = phthalocyaninato(2-)),作为分子内 C(sp 3 )-H的有效催化剂键胺化,以烷基叠氮化物为氮源,以中等至优异的产率提供胺化产物,底物范围广泛。
Facile One‐Step Conversion of Ketones into α‐Azidoketones using [Hydroxy(tosyloxy)iodo]benzene and Sodium Azide in the Presence of a Phase‐Transfer Catalyst under Solvent‐Free Conditions
作者:Dalip Kumar、Swapna Sundaree、V. S. Rao
DOI:10.1080/00397910600602644
日期:2006.7
iodo]‐benzene reagent, sodium azide, and phase‐transfercatalyst at room temperature. Generality of the protocol has been demonstrated by synthesizing various α‐azidoketones high in yield and purity within a short time. The work entitled “A Facile One‐Step Conversion of Ketones into α‐Azidoketones Using [Hydroxy(tosyloxy)iodo]benzene and Sodium Azide in Presence of PhaseTransferCatalyst Under Solvent‐Free
摘要 我们描述了从相应的酮中一步无溶剂合成 α-叠氮酮,该合成需要相对温和的 [羟基(甲苯磺酰氧基)碘]-苯试剂、叠氮化钠和室温下的相转移催化剂。通过在短时间内合成各种高产率和纯度的 α-叠氮酮,证明了该协议的通用性。题为“A Facile One-Step Conversion of Ketones into α-Azidoketones Using [Hydroxy(tosyloxy)iodo]benzo and钠在无溶剂条件下存在相转移催化剂”的工作尚未在其他地方发表,也没有同时提交在别处出版。
作者:Ka-Pan Shing、Yungen Liu、Bei Cao、Xiao-Yong Chang、Tingjie You、Chi-Ming Che
DOI:10.1002/anie.201806059
日期:2018.9.10
selective amination of tertiary, benzylic, allylic, secondary, and primary C−H bonds with up to 95 % yield. 14 out of 17 substrates were cyclized selectively at C4 to give pyrrolidines. The regioselectivity at C4 or C5 could be tuned by modifying the reactivity of the C5–H bond. Mechanistic studies revealed a concerted or a fast re‐bound mechanism for the aminationreaction. The reaction has been applied