... anomalous substitution 反常取代 aromatic substitution 芳香族取代; 芳族取代 axiom of substitution 替换公理 ...
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利用IPN技术将芳香族异氰酸酯引入互穿聚合物网络涂层，取代部分脂肪族异氰酸酯。
An aromatic isocyanate is introduced into an IPN coating system to partly substitute the aliphatic isocyanate.
本文报道用环加成-芳构化串连反应制备多取代芳香族化合物的方法。
The synthesis of polysubstituted aromatic compounds by using tandem cycloaddition aromatization reaction was reported.
从而用微扰分子轨道理论半定量地解释了脂肪族的游离基取代和芳香族的游离基取代反应的反应性和选择性。
The reactivities and selectivities of aliphatic and aromatic free-radical(substitution)reactions were explained semi-quantitatively by the perturbation molecular orbital theory.
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