应用代基当量法判断苯环上两类定位基的研究

The Study of Substituent Equivalent Use to Judge Two Kinds of Fixed Group of Benzoic Ring

对苯环上的亲电取代反应提出一种判断苯环上两类定位基的新方法。该方法是应用代基当量法判断两类定位基，判断结果不但准确无误，没有任何例外，而且还可把两类定位基的判断由定性提高到定量表述。

The treatise advances a new method to judge two kinds of fixed group of benzoic ring on electrophilic substitutive reaction in benzoic ring. This method uses substituent equivalent to judge two kinds of fixed group. The judge result is not only accuracy and without exception, but also judge of two kinds of fixed group can be improved from qualification to quantification.