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Updated: Jun 26, 2025

A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones
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A Direct, Regioselective and Atom-Economical Synthesis of 3-Aroyl-N-hydroxy-5-nitroindoles by Cycloaddition of 4-Nitronitrosobenzene with Alkynones

Published on: January 21, 2020

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在单框架中用于氧化探测的键调联架构:进步和机械洞察力

Feng-Zao Chen1, Cun-Bin Du2, Yi-Chao Wang3

  • 1Department of Clinical Laboratory, Taizhou Central Hospital (Taizhou University Hospital), Taizhou University, Taizhou, 318000, China; Department of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou, 318000, China.

Analytica chimica acta
|May 8, 2024
PubMed
概括

研究人员开发了一种新型的超小光探针 (HSC-1),可以灭光以检测氧化 (NO). 这种单一的核探针为敏感的NO检测提供了卓越的溶解性和生物相容性.

关键词:
生物感应是一种生物感应.光探测器探测器可以发光.调整了键的气键.氧化氧化是什么?一个单基核心.

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The nitration of benzene is an example of an electrophilic aromatic substitution reaction. It involves the formation of a very powerful electrophile, the nitronium ion, which is linear in shape. The reaction occurs through the interaction of two strong acids, sulfuric and nitric acid.
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Unlike the easy catalytic hydrogenation of an alkene double bond, hydrogenation of a benzene double bond under similar reaction conditions does not take place easily. For example, in the reduction of stilbene, the benzene ring remains unaffected while the alkene bond gets reduced. Hydrogenation of an alkene double bond is exothermic and a favorable process. In contrast, to hydrogenate the first unsaturated bond of benzene, an energy input is needed; that is, the process is endothermic. This is...
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Oximes can be reduced to primary amines using catalytic hydrogenation, hydride reduction, or sodium metal reduction. The reduction of aliphatic and aromatic nitro compounds to primary amines takes place by either catalytic hydrogenation or by using active metals like Fe, Zn, and Sn in the presence of an acid.
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In 1865, August Kekule suggested the structure of benzene according to the structural theory of organic chemistry based on the three assertions—formula of benzene is C6H6, all the hydrogens of benzene are equivalent, and each carbon must have four bonds due to its tetravalency.
He proposed that benzene has a cyclic structure of six carbon atoms attached to one hydrogen atom each, with three alternating pi bonds.
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