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
Metal-free regioselective C-3 acetoxylation of N-substituted indoles: crucial impact of nitrogen-substituent
作者:Vineeta Soni、Ulhas N. Patel、Benudhar Punji
DOI:10.1039/c5ra10428a
日期:——
A metal-free method for the regioselectiveC-3 acetoxylation of the N-substituted indoles with PhI(OAc)2 is described under mild reaction conditions. This method tolerates a broad range of functional groups with moderate to good yields. The π-electron-deficient aryl-substituents on the N-atom of indoles and the acidic reaction medium remarkably favor C-3 acetoxylation.
Substituted indoles as inhibitors of poly (ADP-ribose) polymerase (PARP)
申请人:Jiang Z. John
公开号:US20050054631A1
公开(公告)日:2005-03-10
The present invention relates to a series of substituted indole derivatives of the formula I:
wherein R, R
1
, R
2
, R
3
, R
4
, X and Y are as defined herein. This invention also relates to methods of making these compounds. The compounds of this invention are inhibitors of poly(adenosine 5′-diphosphate ribose) polymerase (PARP) and are therefore useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of diseases, including diseases associated with the central nervous system and cardiovascular disorders.
Microwave-assisted solvent- and ligand-free copper-catalysed cross-coupling between halopyridines and nitrogen nucleophiles
作者:Zhen-Jiang Liu、Jean-Pierre Vors、Ernst R. F. Gesing、Carsten Bolm
DOI:10.1039/c0gc00296h
日期:——
N-Heteroarylated products are obtained in good yields by microwave-assisted solvent- and ligand-free copper-catalysed amination of halopyridines with nitrogennucleophiles.
CuI/8-Hydroxyquinalidine Promoted N-Arylation of Indole and Azoles
作者:Xinye Yang、Hui Xing、Ye Zhang、Yisheng Lai、Yihua Zhang、Yongwen Jiang、Dawei Ma
DOI:10.1002/cjoc.201100433
日期:2012.4
An efficient catalytic system of CuI/8‐hydroxyquinalidine was developed for the coupling of aryl iodides and indole as well as some azoles. The reaction could be carried out at 90°C under the condition of relatively low catalyst loading, affording various N‐arylindoles and N‐aryl azoles in good yields. The functionalized and hindered aryl iodides were suitable substrates for this transformation.