A tryptophan-analog host whose interactions with ammonium ions in water are dominated by the hydrophobic effect
摘要:
The binding of quaternary ammonium guests to a flexible, indole-based host has been studied in both aqueous and organic solvents. Binding was shown to depend strongly on the hydrophobic effect and less on the cation-pi interaction. (C) 2009 Elsevier Ltd. All rights reserved.
Synthesis of novel indole based cyclophanes and cylindrical cyclophanes by tandem alkylation methodology using NaH
作者:Perumal Rajakumar、Merikapudi Gayatri Swaroop
DOI:10.1016/j.tetlet.2006.03.013
日期:2006.5
Treatment of 1 equiv of 1,3-bis(bromomethyl)benzene and 2,6-bis(bromomethyl)pyridine with equiv of indole in the presence of NaH in THF afforded the symmetrical cyclophanes 1 and 2. Using similar methodology, cylindrical cyclophanes 3 and 4 were obtained from 2 equiv of 1,3,5-trimethyl-2,4,6-tris(bromomethyl)benzene and 1,3,5-tris(bromomethyl)benzene with 3 equiv of indole. (c) 2006 Published by Elsevier Ltd.
A tryptophan-analog host whose interactions with ammonium ions in water are dominated by the hydrophobic effect
作者:Amanda L. Whiting、Nicole M. Neufeld、Fraser Hof
DOI:10.1016/j.tetlet.2009.09.161
日期:2009.12
The binding of quaternary ammonium guests to a flexible, indole-based host has been studied in both aqueous and organic solvents. Binding was shown to depend strongly on the hydrophobic effect and less on the cation-pi interaction. (C) 2009 Elsevier Ltd. All rights reserved.