Electrochemical Oxidative [4+2] Annulation for the π‐Extension of Unfunctionalized Heterobiaryl Compounds
作者:Xia Hu、Lei Nie、Guoting Zhang、Aiwen Lei
DOI:10.1002/anie.202003656
日期:2020.8.24
biological activities, regioselective access to fused aromatic compounds is significantly important in the field of organic materials and pharmaceutical science. Herein, we developed electrochemical oxidative [4+2] annulationreactions of heterobiaryl compounds with alkynes or alkenes, leading to the formation of several polycyclic heteroaromatic compounds. This electrosynthetic methodology serves for
Regioselective Hydroarylation Reactions of C3 Electrophilic<i>N</i>-Acetylindoles Activated by FeCl<sub>3</sub>: An Entry to 3-(Hetero)arylindolines
作者:Rodolphe Beaud、Régis Guillot、Cyrille Kouklovsky、Guillaume Vincent
DOI:10.1002/chem.201400284
日期:2014.6.10
indole nucleus to generate a quaternary center at C3 and leads regioselectively to 3‐arylindolines. Optimization, scope (50 examples), practicability (gram scale, air atmosphere, room temperature), and mechanisticinsights of this process are presented. Synthetic transformations of the indoline products into drug‐like compounds are also described.
The selective synthesis of C-2/C-3 aminated five-membered heteroarenes incorporated various functionalities with aniline derivatives in a sustainable way remains an unmet challenge. This protocol presents a practical protocol for the C–H amination of heteroarenes via an electro-oxidative crosscoupling process. This electrosynthetic approach enables a facile access to a wide variety of synthetically
以可持续的方式选择性合成将各种功能与苯胺衍生物结合的 C-2/C-3 胺化五元杂芳烃仍然是一个未解决的挑战。该协议提出了一种通过电氧化交叉耦合过程对杂芳烃进行 C-H 胺化的实用协议。这种电合成方法可以轻松获得各种合成有用的杂芳烃衍生物,耐受范围广泛的官能团,并且适合克级合成。此外,初步的机理研究表明,该胺化反应可能涉及 N 中心自由基和吲哚自由基阳离子之间的自由基交叉偶联过程。
Process for producing indoline compounds and intermediates for the
申请人:Tokyo Tanabe Company Limited
公开号:US05936098A1
公开(公告)日:1999-08-10
This invention concerns a method for the production of a 3-arylindoline compound represented by the general formula ##STR1##
本发明涉及一种生产代表性通式为##STR1##的3-芳基吲哚啉化合物的方法。
Electro-Oxidative C–N Bond Formation through Azolation of Indole Derivatives: An Access to 3-Substituent-2-(Azol-1-yl)indoles
A practical protocol to synthesize 3-substituent-2-(azol-1-yl)indolederivatives has been developed via an electrochemical oxidative cross coupling process under mild conditions. This electro-oxidative C–N bond formation strategy tolerates a range of functional groups and is amenable to gram scale synthesis. Moreover, this method was applied to the late-stage functionalization of bioactive molecules