反应详情

Ethyl 2-hydroxyimino-3-oxobutyrate (syn isomer, 56.7 g.), N,N-dimethylformamide (280 ml.), potassium carbonate (72.3 g.) and propargyl bromide (43 g.) were treated in a similar manner to that of Example F (1) to give ethyl 2-propargyloxyimino-3-oxobutyrate (syn isomer, 71.2 g.).