反应详情

Ethyl 2-iso-butoxyimino-4-chloro-3-oxobutyrate (syn isomer, 31.9 g.), thiourea (9.72 g.), sodium acetate 3-hydrate (17.4 g.), ethanol (120 ml.) and water (80 ml.) were treated in a similar manner to that of Example F-(3) to give ethyl 2-(2-aminothiazol-4-yl)-2-iso-butoxyiminoacetate (syn isomer, 17.6 g.), mp 122° to 124° C.