articleJournal of the American Chemical SocietyMar 28, 2025Closed access

Enantioselective Dearomative [2π + 2σ] Photocycloaddition of Naphthalene Derivatives with Bicyclo[1.1.0]butanes Enabled by Gd(III) Catalysis

East China University of Science and Technology · Shanghai Institute of Organic Chemistry · +1 more institution

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Abstract

The cycloaddition reactions of bicyclo[1.1.0]butanes with alkenes, imines, nitrones, or aziridines have served as an efficient platform to create conformationally restricted saturated bicyclic scaffolds. However, the use of readily available aromatics in such reactions, especially in an asymmetric manner, remains underexplored. Herein, we report a highly regio- and enantioselective dearomative [2π + 2σ] photocycloaddition reaction between naphthalene derivatives and bicyclo[1.1.0]butanes, enabled by Gd(III) catalysis. Bicyclo[1.1.0]butanes and naphthalenes adorned with a diverse array of functional groups are well-tolerated under mild conditions, affording enantioenriched pharmaceutically important…

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