Visible light-promoted metal-free sp(3)-C-H fluorination
Ji-Bao Xia1, Chen Zhu, Chuo Chen
1Department of Biochemistry, UT Southwestern Medical Center, Dallas, Texas 75390, USA. Chuo.Chen@UTSouthwestern.edu.
Abstract:
Photoexcited acetophenone can catalyze the fluorination of unactivated C(sp(3))-H groups. While acetophenone, a colorless oil, only has a trace amount of absorption in the visible light region, its photoexcitation can be achieved by irradiation with light generated by a household compact fluorescent lamp (CFL). This operational simple method provides improved substrate scope for the direct incorporation of a fluorine atom into simple organic molecules. CFL-irradiation can also be used to promote certain classic UV-promoted photoreactions of colorless monoarylketones and enones/enals.
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