反应详情

Ethyl 2-hydroxyimino-3-oxobutyrate (syn isomer, 30 g.), N,N-dimethylformamide (100 ml.), potassium carbonate (39.5 g.) and cyclohexyl bromide (31.1 g.) were treated in a similar manner to that of Example F-(1) to give ethyl 2-cyclohexyloxyimino-3-oxobutyrate (syn isomer, 41.8 g.), oil.