ChemInform Abstract: Electron‐Transfer‐Induced Intermolecular [2 + 2] Cycloaddition Reactions Based on the Aromatic “Redox Tag” Strategy.

Abstract

Electron-Transfer-Induced Intermolecular [2 + 2] Cycloaddition ReactionsBased on the Aromatic "Redox Tag" Strategy. -Aliphatic cyclic enol ethers undergo novel electron-transfer-induced [2 + 2] cycloaddition with unactivated olefins possessing aromatic "redox tag". The latter also facilitates electron-transfer-induced cycloreversion of cyclobutanes. In contrast to alkoxyphenyl and alkylphenyl groups, aminophenyl and thiophenol units cannot function as aromatic "redox tag". -(OKADA, Y.; NISHIMOTO, A.; AKABA, R.; CHIBA*, K.; J. Org. Chem. 76 (2011) 9, 3470-3476, http://dx.