Energy Transfer Catalysis by Visible Light: Atrop‐ and Regio‐Selective Intermolecular [2+2]‐Photocycloaddition of Maleimide with Alkenes
Sapna Ahuja, Steffen Jockusch, Angel Ugrinov, Jayaraman Sivaguru
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Source: Crossref
Published: Nov 8, 2019
DOI: 10.1002/ejoc.201901157
Open original source ↗Source abstract
Intermolecular [2+2]‐photocycloaddition of atropisomeric phenyl maleimide has been evaluated with substituted alkenes with complete control over regiochemistry. We were also successful in carrying out atropselective reactions with the removal of axial chirality leading to enantio‐enriched photoproducts. Based on detailed photophysical studies, a mechanistic rationale is proposed for the observed selectivity.
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