Journal
SCIENCE CHINA-CHEMISTRY
Volume 63, Issue 5, Pages 687-691Publisher
SCIENCE PRESS
DOI: 10.1007/s11426-019-9732-5
Keywords
photoredox catalysis; palladium; dual catalysis; photochemistry; benzylic alkylation
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A photoredox/palladium-cocatalyzed enantioselective alkylation of racemic secondary carbonates with 4-alkyl-1,4-dihydropyridines under visible light irradiation has been developed. The present study provides a method for the preparation of optically active diarylalkanes from racemic diarylmethyl carbonates by a dynamic kinetic asymmetric transformation (DYKAT). This photoredox/palladium dual catalysis strategy expands the scope of the asymmetric Pd-catalyzed benzylic substitution reaction and serves as its potential alternative and complement.
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