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Updated: May 13, 2026

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トルコセレクティブ6π電気サイクリングにおける1,6ステレオ誘導の起源

Ashay Patel1, Gregg A Barcan, Ohyun Kwon

  • 1Department of Chemistry and Biochemistry, University of California, Los Angeles, California 90095-1234, USA.

Journal of the American Chemical Society
|March 2, 2013
PubMed
まとめ

リザーピンの合成のために,新しいステレオ選択的電気サイクリング法が開発されました. リモートステレオセンターが反応を制御しています.

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Thermal Electrocyclic Reactions: Stereochemistry01:17

Thermal Electrocyclic Reactions: Stereochemistry

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Photochemical Electrocyclic Reactions: Stereochemistry

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.
Selection Rules: Photochemical Activation
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