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Published on: April 22, 2016
Chromium(II)-Catalyzed Decarboxylative Alkyl Acylation under Visible Light Irradiation
Yu Liu1,2, Yuan-Yuan Cheng1,2, Ji-Xin Yu1,2
1Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, New Cornerstone Science Laboratory, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China.
None:
By utilizing the stability of metal-ligand coordination and the instability of the metal-to-ligand charge transfer excited state to dissociate the ligand, the first chromium(II) decarboxylative alkyl acylation reaction under visible light irradiation is herein reported. The reaction uses α-keto acids as acyl radical precursors to react with alkyl radicals, without the need for additional photosensitizers or other additives. The elegant reaction exhibits a wide scope across α-keto acids, radical precursors, and alkanes with moderate to good yields.
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