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概述了硝苯啶(1)和邻硝基苯甲醛(2)的主要合成方法。包括以2或邻硝基二卤代甲基苯(3)为起始原料合成1的方法;和以邻硝基甲苯与邻硝基乙苯为起始原料合成2的方法。
The main synthesis methods of nifedipine (1) and o-nitrobenzaldehyde (2) are summarized. The method comprises the following steps of: synthesizing 1 by using 2 or o-nitrodihalomethylbenzene (3) as a starting material; and synthesizing 2 by using o-nitrotoluene and o-nitroethylbenzene as starting materials.