Fourteen N- and/or 2-substituted 4-fluoroanilines were prepared (the series includes N-C2-bridged compounds), Some of them were found to be thermally unstable when dissolved in chloroform. Both F-19 NMR spectra and comparison of GIAO-DFT calculated and experimental C-13 chemical shifts were used to suggest decomposition products of 4-fluoroanilines. (C) 2001 Elsevier Science B.V. All rights reserved.
Heterocyclic derivatives as modulators of ion channels
申请人:Martinborough Esther
公开号:US20080027067A1
公开(公告)日:2008-01-31
The present invention relates to heterocyclic derivatives useful as inhibitors of ion channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.
Utilization of renewable formic acid from lignocellulosic biomass for the selective hydrogenation and/or N‐methylation
作者:Chao‐Zheng Zhou、Yu‐Rou Zhao、Fang‐Fang Tan、Yan‐Jun Guo、Yang Li
DOI:10.1002/cctc.202101099
日期:2021.11.22
Lignocellulosic biomass is one of the most abundant renewable sources in nature. Herein, we have developed the utilization of renewable formicacidfrom lignocellulosic biomass as a hydrogen source and a carbon source for the selective hydrogenation and further N-methylation of various quinolines and the derivatives, various indoles under mild conditions in high efficiencies. N-methylation of various
Reductive <i>N</i>-methylation of quinolines with paraformaldehyde and H<sub>2</sub> for sustainable synthesis of <i>N</i>-methyl tetrahydroquinolines
作者:Hongli Wang、Yongji Huang、Qi Jiang、Xingchao Dai、Feng Shi
DOI:10.1039/c8cc10309g
日期:——
One-pot reductive N-methylation of quinolines with paraformaldehyde and H2 over Pd/C catalyst was developed for the synthesis of N-methyl-1,2,3,4-tetrahydroquinolines.
We developed an environmentally friendly iridium-catalyzeddirect cyclization of aromatic amines with diols that generates the corresponding N-heterocyclic compounds with water as the sole by-product. Thus, under conditions of 165 °C for 18 hours, the direct cyclization of N-methylanilines with 1,3-propanediol by using an IrCl3 catalyst with rac-BINAP as a ligand in mesitylene afforded the corresponding
PYRIDYL SULFONAMIDES AS MODULATORS OF ION CHANNELS
申请人:Martinborough Esther
公开号:US20090105271A1
公开(公告)日:2009-04-23
The present invention relates to pyridyl sulfonamide derivatives useful as inhibitors of ion channels. The invention also provides pharmaceutically acceptable compositions comprising the compounds of the invention and methods of using the compositions in the treatment of various disorders.