氨经硝化作用转化成可被植物利用硝酸盐。
Ammonia can be transformed into nitrate that can be utilized by plant via nitrification.
方法：以5 氯2 羟基苯甲酸甲酯为原料，经硝化、还原等九步反应合成。
METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.
采用原料芴经硝化、还原反应得到2-氨基芴，再与一系列的芳香醛缩合得到相应的席夫碱类化合物。
The condensations of 2-aminofluorene with a series of aldehyde gave the corresponding schiff bases(a~h), and their structures were confirmed by IR, 1H NMR, MS and elemental analysis.
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