目的：改进芳香腈的合成方法。
探讨了3-羟基戊二腈的前体3-苄氧基戊二腈的合成方法。
Synthesis methods of 3-benzyloxy glutaric nitrile which is the precursor of 3-hydroxy glutaric nitrile are discussed.
介绍了三氯乙腈的合成方法及应用，分析了其产销现状及前景。
The synthesis of trichloroacetonitrile and application were introduced. The status of production and sales, and its prosperity were analysed.
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