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.
A facile and convenient strategy for the assembly of N-arylated heterocycles has been demonstrated using a MnCl2.4H2O/trans-1,2-diaminocyclohexane catalyst and K3PO4 as the base in water.
A manganese/copper bimetallic catalyst for C–N coupling reactions under mild conditions in water
作者:Yong-Chua Teo、Fui-Fong Yong、Gina Shiyun Lim
DOI:10.1016/j.tetlet.2011.10.128
日期:2011.12
An efficient and convenient bimetallic MnF2/CuI catalyst in combination with trans-1,2-diaminocyclohexane has been developed for the cross-coupling of nitrogen heterocycles with aryl halides in water at moderate temperature. A variety of nitrogen nucleophiles including pyrazole, 7-azaindole, indazole, indole, pyrrole and imidazole afforded the corresponding products in moderate to good yields (up to