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P-methoxybenzeneacetonitrile was prepared in 34. 8% yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation.

以甲醚为原料,经过氯甲,氰反应后,通过精馏获得对甲氧腈,总收率为34.8%。

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怪奇物语 第一季

During fractional distillation, hydrocarbons are separated according to their......- Melting point.

程中烃类么离开的？- 熔。

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科学大揭秘

In the process of fractional distillation, diesel is extracted first, followed by gasoline as the crude is refined further.

在程中，柴油首先被提取，然后汽油随着原油的进一步精炼而被提取。

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