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Beilstein J. Org. Chem. 2021, 17, 1447–1452, doi:10.3762/bjoc.17.100
Graphical Abstract
Scheme 1: Reactions of α-nitroketones with unsaturated pyrazolone and with 4-benzylidenepyrrolidine-2,3-dione....
Scheme 2: Reaction of 4-benzylidenedihydrofuran-2,3-dione (4) with α-nitroketones 2b,c. Reaction conditions: ...