Water-Soluble Organocatalysts for Hydrazone and Oxime Formation
作者:Pete Crisalli、Eric T. Kool
DOI:10.1021/jo302746p
日期:2013.2.1
speeding the reaction considerably over the traditional aniline-catalyzed reaction at neutral pH. This efficient nucleophiliccatalysis, involving catalyst–imine intermediates, allows rapid hydrazone/oxime formation even with relatively low concentrations of the two reactants. The most efficient catalysts are found to be 5-methoxyanthranilic acid and 3,5-diaminobenzoic acid; we find that they can enhance
COMPOUND AND DIMER COMPLEX EMBODIMENTS FOR SUPRAMOLECULAR SENSING
申请人:UVic Industry Partnerships Inc.
公开号:US20200407318A1
公开(公告)日:2020-12-31
Disclosed herein are embodiments of a compound that can be used as a supramolecular sensor for determining the presence of analytes (e.g., illicit drugs), and for identifying and/or quantifying the analytes. Also disclosed herein is a parallel synthesis method for making compound embodiments, as well as method embodiments for using the compound embodiments. Array embodiments comprising one or more compound embodiments disclosed herein also are described.
A New Turn on Fluorescent Probe for Selective Detection of Cysteine/Homocysteine
作者:Puhui Xie、Guangqin Gao、Juanjuan Liu、Qiu Jin、Guoyu Yang
DOI:10.1007/s10895-015-1619-9
日期:2015.9
A new fluorescent probe (probe 1) was developed for recognition of cysteine (Cys) and homocysteine (Hcy). Probe 1 exhibited a large absorption peak blue-shift (107 nm) as well as enhanced fluorescence responses to Cys/Hcy based on cyclization of thiol containing amino acids with aldehydes, inhibiting the C = N isomerization-induced quenching process by an intramolecular hydrogen bond. The detection mechanism was proved by 1H NMR and mass spectrometry analysis.
Aniline Catalysed Hydrazone Formation Reactions Show a Large Variation in Reaction Rates and Catalytic Effects
作者:Fanny Trausel、Bowen Fan、Susan A. P. van Rossum、Jan H. van Esch、Rienk Eelkema
DOI:10.1002/adsc.201800342
日期:2018.7.4
find a suitable hydrazone formation reaction to investigate the activation of this pro‐catalyst, we found a wide variety in reaction rates and response to catalysis. Here we report an overview of hydrazone formation reactions, their reaction rates and response to aniline catalysis, their compatibility for kinetic analysis by UV/Vis spectroscopy, and their compatibility with the reaction environment and