反应详情

Operating analogously to what described in example 113 starting from potassium 2-ethoxycarbonyl-ethenolate (771 mg, 5 mmoles), (5-methoxy-3-oxo-1,3-dihydro-isobenzofuran-1-yl)triphenyl-phosphonium bromide (2.53 g, 5 mmoles), prepared as described in example 36, CH2Cl2 (20 ml) and hydrazine monohydrate (250 mg, 5 mmoles) in ethanol (20 ml), 0.52 g of the title compound were obtained.

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