趣英语 / “苯甲醛”造句

“苯甲醛”造句

简要介绍以此类方法对合成苯甲醛的研究.
Based on the reactions , this paper reports research for synthesizing benzaldehyde.

再溴代得到2-溴 -4,5-二甲氧基苯甲醛,收率为91.9%,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.
This product with Br 2 was obtained 2 - bromo - 4,5 - hydroxymethoxybenzaldehyde through bromination.

以间硝基苯甲醛, 乙酰乙酸乙酯,氨化试剂为原料.
Nefedipine was synthesized with m - Nitrobenzaldehyde, ethyl acetoacetate ammonium acetate.

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