This product with Br2 was obtained 2-bromo-4,5-hydroxymethoxybenzaldehyde through bromination.

• 再溴代得到2-溴-4；5-二甲氧基苯甲醛；收率为91.；9%25；并分析溴代过程中甲酰基的邻位效应及溴代产物的稳定性。