Palladium-catalysed tandem alkenyl- and aryl-C–N bond formation: a cascade N-annulation route to 1-functionalised 7-azaindoles
摘要:
A series of 3-(2-haloalkenyl)-2-pyridyl-halides undergo consecutive palladium-catalysed inter- and intramolecular amination reactions to deliver a series of 1-functionalised 7-azaindoles. Anilines and amines can be readily employed as the N-nucleophile and incorporation of both electron-donating and electron withdrawing substituents on the pyridine core is possible. (C) 2009 Elsevier Ltd. All rights reserved.
Rh(<scp>iii</scp>)-catalyzed C–H oxidative <i>ortho</i>-olefination of arenes using 7-azaindole as a directing group and utilization in the construction of new tetracyclic heterocycles containing a 7-azaindole skeleton
作者:Bin Liu、Ridong Li、Wei Zhan、Xin Wang、Zemei Ge、Runtao Li
DOI:10.1039/c6ra07478b
日期:——
A Rh(III)-catalyzed C-H ortho-mono-olefination of aryls directed by 7-azaindoles was reported, this method opens up a novel pathway to synthesize complex 7-azaindole derivatives and interestingly, we obsereved an intramolecular cascade...
Lewis acid-mediated cross-coupling reaction of 7-azaindoles and aldehydes: Cytotoxic evaluation of C3-linked bis-7-azaindoles
作者:Suk Hun Lee、Kunyoung Kim、Yeong Uk Jeon、Amit Kundu、Prasanta Dey、Jong Yeon Hwang、Neeraj Kumar Mishra、Hyung Sik Kim、In Su Kim
DOI:10.1016/j.tetlet.2019.150974
日期:2019.8
3′-bis-7-indolylmethane derivatives is important for their further development as pharmaceutical compounds and other synthetic purposes. Herein, we describe the zinc- or acid-mediated cross-coupling reaction of 7-azaindoles with aldehydes, such as paraformaldehyde, alkyl aldehydes, aryl aldehydes, enal, and α-ketoaldehyde, providing the corresponding C3-linked bis-7-azaindole derivatives, which are a crucial class
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.
Ruthenium-Catalyzed Direct and Selective C–H Cyanation of <i>N</i>-(Hetero)aryl-7-azaindoles
作者:Aniket Mishra、Tripta Kumari Vats、Indubhusan Deb
DOI:10.1021/acs.joc.6b01148
日期:2016.8.5
An efficient, highly regioselective, and scalable ruthenium-catalyzed o-aryl C–H mono-cyanation of N-aryl-7-azaindoles to form N-(2-cyanoaryl)-7-azaindoles has been developed through N-directed ortho C–H activation using N-cyano-N-phenyl-p-toluenesulfonamide as cyanating reagent in the presence of AgOTf and NaOAc in DCE. A range of substrates has furnished cyanated azaindoles in good to excellent yields