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Beilstein J. Org. Chem. 2024, 20, 1453–1461, doi:10.3762/bjoc.20.128
Graphical Abstract
Figure 1: Representative pyrazoles with pharmacological activities and S/Se-containing pharmaceutical molecul...
Scheme 1: Approaches for thio/selenocyanation of the pyrazole skeleton.
Scheme 2: PhICl2/NH4SCN-mediated thiocyanation of pyrazoles. Reaction conditions: under N2 atmosphere, a mixt...
Scheme 3: PhICl2/KSeCN-mediated selenocyanation of pyrazoles. Reaction conditions: under N2 atmosphere, a mix...
Scheme 4: Gram-scale synthesis of compounds 2a and 3a and their derivatization.
Scheme 5: Plausible reaction mechanism.