双英多[1,8]纳非胺:X形阿扎[4,6]烯的合成和表征

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Updated: Jul 11, 2025

Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles
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Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles

Published on: August 22, 2018

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Elina Ausekle1, Peter Ehlers1,2, Alexander Villinger1

  • 1Institut für Chemie, Universität Rostock, Albert Einstein Str. 3a, 18059, Rostock, Deutschland.

Chemistry (Weinheim an der Bergstrasse, Germany)
|November 10, 2023
PubMed
概括

研究人员开发了一种使用替代和催化剂的新型单合成双素. 这种方法允许这些复杂的X形分子的结构多样化.

关键词:
在 C−H 激活过程中.aza[n]helicenes 基的使用情况双螺旋体是双螺旋体的一种.宝石-二醇基因的二氧化.一合成合成的一合成

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Like benzene, cyclobutadiene and cyclooctatetraene are cyclic compounds with alternate single and double bonds. However, their chemical behavior differs from benzene, as they are unstable and not aromatic. So, what are the structural characteristics of unsaturated compounds categorized as aromatic?  
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The simplest aromatic amine is phenylamine, which contains an –NH2 functionality directly attached to an aromatic ring. The name aniline is designated for this skeleton. As shown in Figure 1, the common names of the functionalized anilines involve prefixes ortho-, meta-, and para- to indicate the substitution position. Different functionalized aniline derivatives also have notable trivial names.
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Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
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