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站点选择性电化学分子内C2-H化用于二二二烯合成

Indrajit Karmakar1, Yi-Xuan Jian1, Wan-Lin Cheng1

  • 1Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan, R.O.C.

The Journal of organic chemistry
|August 18, 2025
PubMed
概括

本研究介绍了一种环保的电合成方法,用于制造多种二二烯. 这种新的无过渡金属方法使用简单的条件来有效和可扩展地生产这些生物相关化合物.

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Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
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Simple aryl halides do not react with nucleophiles. However, nucleophilic aromatic substitutions can be forced under certain conditions, such as high temperatures or strong bases. The mechanism of substitution under such conditions involves the highly unstable and reactive benzyne intermediate. Benzyne contains equivalent carbon centers at both ends of the triple bond, each of which is equally susceptible to nucleophilic attack. This 50–50 distribution of products is...
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