β-Dicarbonyl compounds, such as dimethyl malonate derivatives
and methyl acetoacetate derivatives, were electrooxidized
in methanol in the presence of halogen ions to afford the corresponding
dimethyl α-halomalonates and methyl α-halocarboxylates.
Electrooxidation of bis(β-dimethoxycarbonyl) derivatives
similarly afforded cyclic compounds and dihalides.
cyclization - halogenation - electron transfer - halide - oxidation
