Keywords
aza-Michael adduct
elimination
nitroacrylates
nitropyruvates.
nucleophilic addition
semicarbazides
semicarbazones
Abstract
Semicarbazones of alkyl 3-nitropyruvates were obtained by the reaction between alkyl 3-bromo-3-nitroacrylates and semicarbazides. The products were formed as E/Z isomer mixtures from which some representatives of the individual isomers were isolated. The possibility of their isomerization was shown.
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