Topic
Hydrazone
About: Hydrazone is a research topic. Over the lifetime, 4853 publications have been published within this topic receiving 65160 citations. The topic is also known as: hydrazone.
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TL;DR: This work establishes the capability of the MOA for studying aldehydes and ketones, a critical class of oxidized organic molecules of interest in planetary and in terrestrial environmental and health studies.
Abstract: A microchip CE method is developed for the analysis of two oxidized forms of carbon, aldehydes and ketones, with the Mars Organic Analyzer (MOA). Fluorescent derivitization is achieved in ∼15 min by hydrazone formation with Cascade Blue hydrazide in 30 mM borate pH 5–6. The microchip CE separation and analysis method is optimized via separation in 30 mM borate buffer, pH 9.5, at 20°C. A carbonyl standard consisting of ten aldehydes and ketones found in extraterrestrial matter is successfully separated; the resulting LOD depends on the reactivity of the compound and range from 70 pM for formaldehyde to 2 μM for benzophenone. To explore the utility of this method for analyzing complex samples, analyses of several fermented beverages are conducted, identifying ten aldehydes and ketones ranging from 30 nM to 5 mM. A Martian regolith simulant sample, consisting of a basalt matrix spiked with soluble ions and acetone, is designed and analyzed, but acetone is found to have a limited detectable lifetime under simulant Martian conditions. This work establishes the capability of the MOA for studying aldehydes and ketones, a critical class of oxidized organic molecules of interest in planetary and in terrestrial environmental and health studies.
32 citations
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TL;DR: On montre que les stereoselectivites des alkylations d'hydrazones ne derivent pas des effets d'agregation des anions mais de l'alkylation stereoseslective de derives monomeres du lithium bis-solvates as mentioned in this paper.
Abstract: On montre que les stereoselectivites des alkylations d'hydrazones ne derivent pas des effets d'agregation des anions mais de l'alkylation stereoselective de derives monomeres du lithium bis-solvates
32 citations
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TL;DR: The deprotonated ligand acts as a dibasic tridentate (ONS) via phenolate oxygen, azomethine (CN), and thiolate (C-S) groups and molecular parameters of the ligand and its metal complexes have been calculated and correlated with the experimental data such as IR and TGA results.
32 citations
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TL;DR: These isonicotinoylhydrazones of anacardic aldehydes showed potent antimycobacterial activity against Mycobacterium smegmatis mc(2)155 and the synergistic studies of 5 and 6 with isoniazid showed more inhibitory activities than isoniaZid alone.
32 citations