Green Chemistry p. 4412 - 4421 (2019)
Update date:2022-08-12
Topics:
Li, Ke-Jing
Jiang, Yang-Ye
Xu, Kun
Zeng, Cheng-Chu
Sun, Bao-Guo
An efficient electrochemical approach for the C(sp2)-H phosphonation of quinoxalin-2(1H)-ones and C(sp3)-H phosphonation of xanthenes has been developed. The chemistry was performed in an undivided cell under constant current conditions and features a wide range of substrates, up to 99% yield and it is free of transition-metal catalysts- A nd external oxidants, thereby providing a straightforward approach for dehydrogenative C-H/P-H cross-coupling. In addition, control experiments disclose that some of the reactions may involve a radical pathway.
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