反应详情

Ethyl 2-hydroxyimino-3-oxobutyrate (syn isomer 40 g.), ethoxyethyl bromide (41.1 g.), potassium carbonate (54.1 g.), N,N-dimethylformamide (65 ml.) and ethylacetate (65 ml.) were treated in a similar manner to that of Example A-(1) to give ethyl 2-(2-ethoxyethoxyimino)-3-oxobutyrate (syn isomer, 56.8 g.).