Ortho-para

[keliao]

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is N(CH3)2 Ortho-para activating????????

 

[chessxwizard]

Yes. The lone pairs on nitrogen are increase the ring's electron density, activating it and making it ortho/para directing.

 

[keliao]

thanks chess....i just couldnt find it in my orgo book...

 

[Maygyver]

If you ever get confused on the test, you can usually tell by drawing out the resonance structures. Just a helpful hint if you get stuck on test day.

 

[Dotoday]

N(CH3)2 is an o/p director because it still has 2 loan pairs and therefore csan donate electrons. Anything that is electron donating is an o/p director. However, N(CH3)3 would be a meta director because if this is attached to the benzene ring it would have a plus charge and that would make is an electron withdrawing group.