How can I rephrase this. An electrophilic aromatic substitution is a process where one atom or group on an aromatic ring is replaced by an incoming electrophile. The reactivity and regioselectivity of this category of reactions is significantly impacted by the group that is already attached to the aromatic ring.
I am wondering why you don't just quote the original source for this plagiarized material?
To express this differently, you could say:
"An electrophilic aromatic substitution involves the replacement of an atom or group attached to an aromatic ring with an electrophile. The overall reactivity and regioselectivity of these reactions are greatly influenced by the specific group already present on the aromatic ring."
To rephrase it yourself, follow these steps:
1. Start with the main idea: "An electrophilic aromatic substitution is a process."
2. Identify the important details: "where one atom or group on an aromatic ring is replaced by an incoming electrophile" and "the reactivity and regioselectivity are significantly impacted by the group already attached to the aromatic ring."
3. Combine the information into a coherent sentence: "An electrophilic aromatic substitution involves replacing an atom or group attached to an aromatic ring with an electrophile, and the reactions' reactivity and regioselectivity are greatly influenced by the group already present on the ring."
4. Make any necessary adjustments for clarity and flow: "An electrophilic aromatic substitution involves the replacement of an atom or group attached to an aromatic ring with an electrophile, and the overall reactivity and regioselectivity of these reactions are greatly influenced by the specific group already present on the aromatic ring."