![]()
图片来源:https://cheminfographic.wordpress.com/2018/10/28/ewg-and-erg-edg/
ERG(EDG): 给电子基团,EDG可以使苯环活化,对邻对位的活化作用大于间位,所以为邻对位定位基团。
EWG: 吸电子基团,EWG使苯环钝化,其对邻对位的钝化作用大于间位,所以为间位定位基团。有EWG基团的苯环很难进行F-C酰基化反应。
特别声明:以上内容(如有图片或视频亦包括在内)为自媒体平台“网易号”用户上传并发布,本平台仅提供信息存储服务。
Notice: The content above (including the pictures and videos if any) is uploaded and posted by a user of NetEase Hao, which is a social media platform and only provides information storage services.