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Updated: Jun 24, 2025

Preparation of a Corannulene-functionalized Hexahelicene by CopperI-catalyzed Alkyne-azide Cycloaddition of Nonplanar Polyaromatic Units
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Published on: September 18, 2016

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光催化级联式原子转移用于组装多替代α-SCF3和α-SCF2H环旋

Nicolas Marie1, Jun-An Ma2, Vincent Tognetti1

  • 1CNRS, UMR 6014 COBRA, Univ Rouen Normandie, INSA Rouen Normandie, Normandie Univ, INC3M FR 3038, F-76000, Rouen, France.

Angewandte Chemie (International ed. in English)
|June 7, 2024
PubMed
概括

一种新型的光催化反应产生了用三甲基基组替代的多基. 这种方法使用简单的起始材料,可以自动化进行高效的合成.

关键词:
在 DFT 方面,它是最重要的.环丹是一种环丹.光催化作用的光催化作用聚氧金属酸盐的使用方法三甲基团是三甲基团的组成部分.

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Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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