scheme11

Scheme 11. Electrochemical semihydrogenation (deuteration) of various alkynes. (A) Pd-P alloy and H2O are used as the cathode and a hydrogen source. Copyright 2020, Wiley-VCH[80]; (B) Pd-P alloy and D2O are used as the cathode and a hydrogen source. The data in brackets refer to the ratio of yields of the semihydrogenated and full-hydrogenated products; (C) PdSx ANCs and H2O or D2O are used as the cathode and hydrogen sources. Copyright 2022, American Chemical Society[81].