How is electrophilic aromatic substitution of aryl amines similar and also different to other groups? I understand that electrophilic aromatic substitution reactions for aryl amines require a sequence of protect, substitute, and deprotect. What is protect and deprotect exactly referring to? And since the nitrogen of aryl amine is bonded to the benzene ring, is it an activating group that is ortho, para directing? Do all the reactions that apply to groups such as toluene and trifluoromethyl benzene also apply to aryl amines? In addition, what reactions can aryl amines be part of that groups such as toluene and trifluoromethyl benzenes cannot be part of