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Updated: Jul 28, 2025

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
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Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units

Published on: September 18, 2016

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通过同质的铜催化级联循环 allenynes 的区域选择性访问多环 N-异环

Kua-Fei Wei1, Qing Liu1, Guang Ma1

  • 1College of Sciences and College of Forestry, Henan Agricultural University, Zhengzhou, 450002, China.

Communications chemistry
|May 31, 2023
PubMed
概括

这项研究引入了一种新的铜催化反应,用于从allenynes和cis-diazenes合成多环N-异环环. 该方法提供温度控制和立体控制的化学选择性,使各种异环化合物的高效合成成为可能.

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Robinson annulation is a base-catalyzed reaction for the synthesis of 2-cyclohexenone derivatives from 1,3-dicarbonyl donors (such as cyclic diketones, β-ketoesters, or β-diketones) and α,β-unsaturated carbonyl acceptors. Named after Sir Robert Robinson, who discovered it, this reaction yields a six-membered ring with three new C–C bonds (two σ bonds and one π bond).
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The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
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