Topic
Reagent
About: Reagent is a research topic. Over the lifetime, 60091 publications have been published within this topic receiving 1234928 citations. The topic is also known as: reagens.
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TL;DR: In this article, a Losung von wasserfreiem Fe(III)-chlorid in Acetanhydrid werden Ather (I) uber die Zwischenstufen (III) zu den Acetaten (IV) bzw.
Abstract: Durch eine Losung von wasserfreiem Fe(III)-chlorid in Acetanhydrid werden Ather (I) uber die Zwischenstufen (III) zu den Acetaten (IV) bzw. (V) gespalten.
159 citations
TL;DR: A review of the literature concerning the use of acidic solutions of potassium permanganate to generate chemiluminescence during the oxidation of both organic compounds and inorganic species is presented in this paper.
158 citations
TL;DR: A new rhodamine-based receptor, derivatized with an additional fluorophore (quinoline), was synthesized for selective recognition of Hg(2+) and Cr(3+) in an acetonitrile/HEPES buffer medium and allowed detection of these two ions by monitoring changes in absorption and the fluorescence spectral pattern.
Abstract: A new rhodamine-based receptor, derivatized with an additional fluorophore (quinoline), was synthesized for selective recognition of Hg(2+) and Cr(3+) in an acetonitrile/HEPES buffer medium of pH 7.3. This reagent could be used as a dual probe and allowed detection of these two ions by monitoring changes in absorption and the fluorescence spectral pattern. In both instances, the extent of the changes was significant enough to allow visual detection. More importantly, the receptor molecule could be used as an imaging reagent for detection of Hg(2+) and Cr(3+) uptake in live human cancer cells (MCF7) using laser confocal microscopic studies. Unlike Hg(ClO(4))(2) or Hg(NO(3))(2) salts, HgCl(2) or HgI(2) failed to induce any visually detectable change in color or fluorescence upon interaction with L(1) under identical experimental conditions. Presumably, the higher covalent nature of Hg(II) in HgCl(2) or HgI(2) accounts for its lower acidity and its inability to open up the spirolactam ring of the reagent L(1). The issue has been addressed on the basis of the single-crystal X-ray structures of L(1)·HgX(2) (X(-) = Cl(-) or I(-)) and results from other spectral studies.
158 citations
TL;DR: In this article, a new Horner-Emmons reagent, ethyl diphenylphosphonoacetate 1 was prepared from triethyl phosphonoacetates, PCl 5, and phenol in 60% overall yield and showed up to 99% Z-selectivity under Still's condition (KHMDS/18-crown-6).
158 citations
TL;DR: In this paper, the kinetics of the reaction for the formation of the pink azo dye in both fresh water and sea water was studied at different acidities, temperatures, and concentrations of N -1 naphthylethylenediamine (NED).
158 citations