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1949年,T.W.Campble找到了一个方便的方法,合成了对硝基-N、N二甲苯胺和邻硝基-N、N二甲苯胺,收率分别为94-97%和85%。他是用以下方法获得这两个化合物的:
In 1949, T. W. Campble found a convenient way to synthesize p-nitro-N, N-dimethylaniline and o-nitro-N, N-dimethylaniline in 94-97% and 85% yields, respectively. He obtained these two compounds in the following ways: