Visible-Light-Promoted Deoxygenative Alkylation of Quinoxalin-2(1H)-ones with Activated Alcohols. 2024

Lili Wang, and Pengyuan Yang, and Jinwei Yuan, and Wei Lian, and Xinrong Jin, and Sanyu Zhang, and Liangru Yang, and Dongliang Xing
School of Chemistry and Chemical Engineering, Henan University of Technology, Zhengzhou 450001, P. R. China.

A one-pot strategy for deoxygenative alkylation of alcohols with quinoxalin-2(1H)-ones was developed by using xanthate salts as alcohol-activating groups for radical generation in the presence of tricyclohexylphosphine under visible-light-promoted conditions. The remarkable features of this reaction include a broad substrate scope, excellent functional group tolerance, mild conditions, and simple operation. Moreover, the synthetic utility of this reaction was validated by the success of two-step one-pot reactions, scale-up synthesis, and chemoselective radical monodeoxygenation of diols.

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