Beilstein J. Org. Chem.2022,18, 1055–1061, doi:10.3762/bjoc.18.107
hydrogenation of enones using homogeneous and heterogeneous catalysts.
Meanwhile, electrochemical systems using a proton-exchange membrane (PEM) reactor have been shown to be powerful tools for electrochemical hydrogenation [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. A PEMreactor
consists of a membrane called a membrane electrode assembly (MEA), which can act as supporting electrolyte, electrode, and heterogeneous catalyst. Therefore, the further addition of a supporting electrolyte is not necessary for the electrochemical reactions using a PEMreactor, which offers clean and
]. For instance, they recently reported a stereoselective reduction of alkynes to Z-alkenes using a PEMreactor. The use of a Pd/C cathode catalyst and the appropriate cathode potential realize the selective synthesis of Z-alkenes [22][23][24]. They also reported the stereoselective hydrogenation of α,β
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Graphical Abstract
Scheme 1:
Designed electrochemical hydrogenation of enones 1 with a PEM reactor.