V-Acyliminium ions reactions

The chemistiy of /V-acyliminium ions has great synthetic value and many of the conversions are done in highly acidic media.46 There are several examples of /V-acyliminium ion reactions that likely involve gitonic superelectrophiles. For example, reaction of the 3-chlorophthahmidine 114 with excess AICI3 produces an electrophile capable of reacting with m-dichlorobenzene (eq 37).47... 

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