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: Fluorimetric methods for the determination of mercury(II) (80-320 ppb) and copper(II)-II (0.4-1 ppb), which catalyse the autoxidation of 2,2'-dipyridylketone hydrazone, were described in this paper.
31 citations
TL;DR: 2,4-Dinitro-3,5,6-trideuterophenylhydrazine and various of its hydrazones have been synthesized and characterized for the first time and exhibit good agreement to quantification data obtained with UV detection.
31 citations
TL;DR: The enantiopure C3-symmetric syn-benzotriborneol was efficiently obtained in an eight-step route in this article, where the protecting groups influence the syn/anti diasteroselectivity of the cyclotrimerization reaction.
31 citations
TL;DR: A quinoline-based hydrazone, namely, bis((quinolin-8-yl)methylene)carbonohydrazide (1), has been designed and synthesized, which could be used as a dual probe for selective recognition of Co2+ and Zn2+ by monitoring changes in absorption and fluorescence spectral pattern, respectively.
31 citations
TL;DR: In this article, the acid dissociation constants pK and pK* in ground and excited states, respectively, were determined from the reactions of 4-amino-5-phenyl-4H-[1,2,4]triazole-3-thiol 2 and 2-(2-naphthyl)-2-oxoethanehydrazonoyl bromides 1 and the spectral data indicated that the title compounds exist predominantly in the hydrazone tautomeric form.
Abstract: 7-Arylhydrazono[1,2,4]triazolo[3,4-b][1,3,4]thiadiazines 4 were synthesized from the reactions of 4-amino-5-phenyl-4H-[1,2,4]triazole-3-thiol 2 and 2-(2-naphthyl)-2-oxoethanehydrazonoyl bromides 1 and their acid dissociation constants pK and pK*, in the ground and excited states, respectively, were determined. Both pK and pK* constants were correlated by Hammett equation. The pK and the spectral data presented indicate that the title compounds exist predominantly in the hydrazone tautomeric form.
31 citations