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This content will become publicly available on April 16, 2026

Title: Synergistic Photoenzymatic Anti-Markovnikov Hydroarylation of Olefins via Heteroaryl Radical Intermediates
Heteroaromatic alkylations are indispensable reactions for synthesizing biologically active molecules. The anti-Markovnikov hydroarylation of olefins using heteroaryl halides furnishes the product as a single regioisomer; however, catalytic variants are ineffective at controlling the stereochemical outcome of these reactions. Here, we report a synergistic photoenzymatic hydroarylation of olefins using flavin-dependent “ene”-reductases with ruthenium photoredox catalysts. Enzyme homologues were identified, which provide access to both product enantiomers in greater than 80% yield with up to 99:1 er. This method is effective for styrenyl- and unactivated alkenes, highlighting the generality of this approach. The highest yielding system involves a carboxylated photocatalyst with increased affinity for the enzyme. This work expands the types of radical intermediates that enzymes can use for stereoselective intermolecular coupling reactions.  more » « less
Award ID(s):
2342328
PAR ID:
10582923
Author(s) / Creator(s):
; ;
Publisher / Repository:
Journal of the American Chemical Society
Date Published:
Journal Name:
Journal of the American Chemical Society
ISSN:
0002-7863
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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