Photocatalytic Benzylic C–H Oxidation/Cyclization of Enaminones to the Synthesis of Polysubstituted Oxazoles,The Journal of Organic Chemistry

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Photocatalytic Benzylic C–H Oxidation/Cyclization of Enaminones to the Synthesis of Polysubstituted Oxazoles
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2023-06-01 , DOI: 10.1021/acs.joc.3c00269
Mingrui Li ₁ , Zhiqin He ₂ , Wei Zhao ₂ , Yang Yu ₃ , Fei Huang ₁ , Jonathan B Baell ₁

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Photocatalytic benzylic C–H oxidation/cyclization of enaminones was efficiently achieved to afford oxazole derivatives under mild conditions. The oxygen in the oxazole ring originated from green oxidant molecular oxygen. The synthetic protocol features broad substrate scopes and good functional group tolerance. The combined experimental and theoretical studies reveal that in suit benzylic C–H oxidation/cyclization is involved in the reaction transformations.

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