Divergent synthesis of isoindolo[2,1-a]indole and indolo[1,2-a]indole through copper-catalysed C- and N-arylations
摘要:
A simple and efficient synthetic route to both isoindolo[2,1-a]indole and its structural isomer indolo[1,2a]indole skeletons is presented. The key steps of the strategy are based on copper-catalysed C-aryl-C and C-aryl-N bond formation reactions, respectively. Moreover, we report the first copper-mediated intramolecular C-H functionalisation of an indole. (C) 2009 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Formal [4 + 1] Annulation via Metal Carbene Migratory Insertion and C(sp<sup>2</sup>)–H Bond Functionalization
作者:Shuai Xu、Ri Chen、Zihao Fu、Qi Zhou、Yan Zhang、Jianbo Wang
DOI:10.1021/acscatal.6b03562
日期:2017.3.3
A highly efficient and operationally simple palladium-catalyzed formal [4 + 1] annulationreaction has been developed. The reaction is featured by the formation of two different C–C bonds on a carbenic center. It represents a concise method for the synthesis of a wide range of polycyclic aromatic hydrocarbons (PAHs) and 1H-indenes with easily available (trimethylsilyl)diazomethane as the carbene source
[EN] NOVEL INDICATOR PLATFORM<br/>[FR] NOUVELLE PLATEFORME INDICATRICE
申请人:BIOSYNTH AG
公开号:WO2010128120A1
公开(公告)日:2010-11-11
A novel indicator platform comprises a plurality of 1 H-lndol-3-yl indicator compounds that are capable of converting to a signalophore compound in response to an external stimulus. In one class of indicator compounds, the resulting signalophores are 2-benzylideneindoline compounds that are formed by an intermolecular Aldol-type process; in a further class of indicator compounds, the resulting signalophores are 10H-indolo[1,2-a]indole compounds that are formed by an intramolecular Aldol-type process. The indicators can be used in a wide array of applications relating, for example, to biological systems or optical data storage.
The present invention relates to an electronic device comprising one or more compounds of a formula (I) or (II). Furthermore, the invention encompasses the use of a compound of the formula (I) or (II) in an electronic device, and the provision of certain compounds of the formula (I) or (II).
A novel indicator platform comprises a plurality of 1H-Indol-3-yl indicator compounds that are capable of converting to a signalophore compound in response to an external stimulus. In one class of indicator compounds, the resulting signalophores are 2-benzylideneindoline compounds that are formed by an intermolecular Aldol-type process; in a further class of indicator compounds, the resulting signalophores are 10H-indolo[1,2-a]indole compounds that are formed by an intramolecular Aldol-type process. The indicators can be used in a wide array of applications relating, for example, to biological systems or optical data storage.
A novel class of chromogenic and fluorogenic indicators responding to external stimuli such as biochemical environment, temperature or photo irradiation comprises a plurality of compounds that are converted by an intramolecular aldol condensation to corresponding 10H-indolo[1,2-a]indole of (5H,7H)-indolo[1,2-a]quinoline signalophores. The indicators offer broad potential in a wide array of applications, particularly for biological systems.