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发明公开
CN101768065A 一种6-甲氧基水杨醛的制备方法 失效 - 权利终止

一种6-甲氧基水杨醛的制备方法
摘要：
本发明公开了一种如式II所示的6-甲氧基水杨醛的制备方法，其包含下列步骤：一种如式II所示的6-甲氧基水杨醛的制备方法，其包含下列步骤：(1)有机溶剂中，化合物I和三价铁盐FeX3反应；(2)步骤(1)所得物质和水反应生成化合物II；其中，X为卤素阴离子、SO4-、NO3-、CH3COO-、CF3COO-或CF3SO3-，卤素阴离子中优选氯离子或溴离子。本发明的制备方法环境友好、成本较低、后处理简单、产物纯度高、纯产物收率可达90％-95％，易于工业化生产。
摘要（英）：

The invention discloses a method for preparing 6-dimethoxysalicylaldehyde represented by a formula II, which comprises the step of: (1) reacting a compound I with a ferric salt FeX3 in an organic solvent; and (2) reacting the product of the step (1) with water to obtain a compound II, wherein X may be a halide anion, SO4<->, NO3<->, CH3COO<->, CF3COO<-> or CF3SO3<->, wherein the halide anion is preferably a chloride ion or bromonium ion. The preparation method of the invention is environmentally-friendly, low in cost, simple in post treatment; the product purity is high; the pure product yield is as high as 90 to 95 percent; and industrial production is easy to realize.

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