Diazo compounds play an important role as a coupling partner in the synthesis of unique π-conjugated 7-azaindole derivatives via rhodium(III)-catalyzed double C–H activation/cyclization.
Rhodium(III)-catalyzed N-directed ortho C–H activation and subsequent roll-over C–H activation represents an important strategy to synthesize fused polycyclic compounds. Herein, the novel methodology broadens the scope of the coupling partner to alkenes, which working smoothly with 7-azaindoles has been proven to be an efficient and atom-economical strategy to access complex π-conjugated 7-azaindole
Rhodium(III)-catalyzed Mono- and Dialkenylation of <i>N</i>-Phenyl-7-azaindoles via Regioselective C–H Bond Cleavage
作者:Ryosuke Morioka、Tetsuya Satoh、Masahiro Miura
DOI:10.1246/cl.160234
日期:2016.6.5
Rhodium-catalyzed regioselective mono- and dialkenylation reactions of N-phenyl-7-azaindoles with alkenes proceed efficiently under rhodium(III) catalysis. The one-pot synthesis of unsymmetrically dialkenylated benzene derivative can also be achieved. Some of the alkenylated products exhibit solid-state fluorescence.
Cobalt(III)-Catalyzed C–H Amidation of 7-Azaindoles with Dioxazolones: Synthesis of 7-Azaindole Amidated Derivatives
作者:Jun-Shu Sun、Man Liu、Jing Zhang、Lin Dong
DOI:10.1021/acs.joc.8b01354
日期:2018.9.7
An efficient cobalt-catalyzed C–H amidation of 7-azaindoles was developed by using dioxazolones as the amidating reagent. A wide scope of substituted 7-azaindoles, even N-vinly groups, is suitable for the reaction, generating 7-azaindoles derivatives with potential properties up to 91% yield under straightforward and strong applicable reaction conditions.
Rhodium‐catalyzed tandemannulationreactions via olefination and subsequent intramolecular C‐Michael‐type cyclization represent an efficient approach for the direct construction of CC bonds. The simple and atom‐economic strategy produces various alkylation derivatives of 7‐azaindole with a quaternary carbon center from 7‐azaindoles and olefins.