NH2 is electron acceptor or electron donor?

  • #1

Main Question or Discussion Point

i have attached 2 photos here...

the book said the NH2 exhibit negative inductive effect (negative inductive effect means electron acceptor) , and is ring activating group, but ring activating group is electron donor. which is correct?

So NH2 is electron donor or electron acceptor?
 

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Answers and Replies

  • #2
Lok
555
23
They were supposed to imply "generally".
 
  • #3
They were supposed to imply "generally".
can you explain more detailed?
 
  • #4
DrClaude
Mentor
7,090
3,239
So NH2 is electron donor or electron acceptor?
Both! While NH2 is a negative inductor, there is a resonance structure between NH2 and benzene that makes it a ring activator (the resonance dominates over the electronegativity).

You can find a nice picture of the resonance here: http://www.chm.wright.edu/feld/chm212/eas.pdf
 

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