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Updated: Sep 15, 2025

Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
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効率的で選択的なクロス[2 + 2]サイクロディションのための可視光反応性八面体ケージ

Rikuya Tanaka1, Hiroki Takezawa1, Makoto Fujita2,3

  • 1Department of Applied Chemistry, School of Engineering, The University of Tokyo, Mitsui Link Lab Kashiwanoha 1, FS CREATION, 6-6-2 Kashiwanoha, Kashiwa, Chiba 277-0882, Japan.

Journal of the American Chemical Society
|July 15, 2025
PubMed
まとめ

研究者は可視光に反応するケージを開発し フォト反応を強めた. このケージは,可視光を使用した無活性基質の選択的なクロス[2 + 2]サイクル添加を可能にする.

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Thermal cycloadditions are reactions where the source of activation energy needed to initiate the reaction is provided in the form of heat. A typical example of a thermally-allowed cycloaddition is the Diels–Alder reaction, which is a [4 + 2] cycloaddition. In contrast, a [2 + 2] cycloaddition is thermally forbidden.
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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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