Williamson反应是制备不对称醚类化合物的重要方法.从廉价易得的对硝基苯酚制得其钾盐,然后与二卤代烷通过Williamson反应方便地以高产率和高纯度制得4,4'-二氨基-1,n-二苯氧基烷烃.该二胺可用于合成新型的聚酰亚胺.
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