Ochem Aromatic substituents activators and deactivators

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Last updated 4:11 PM on 9/3/26
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14 Terms

1
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Ar-NR2

1st) strong activator ortho/para director

2
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Ar-OR

2nd) strong activator ortho/para director

3
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<p>Ar-N(R)-C(=O)-C amide</p>

Ar-N(R)-C(=O)-C amide

3rd) moderate activator ortho/para director

4
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<p>Ar-O-C(=O)-C ester</p>

Ar-O-C(=O)-C ester

4th) moderate activator ortho/para director

5
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Ar-R (R is some molecule, carbon or hydrogen)

weak activator ortho/para director

6
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<p>Ar-X (X is a halide)</p>

Ar-X (X is a halide)

weak deactivator HOWEVER halogens are the exception, they are ortho/para directors.

7
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<p>Ar-C-N (triple bond) nitrile </p>

Ar-C-N (triple bond) nitrile

1st) moderate deactivator, meta director

8
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<p>Ar-SO<sub>3</sub>H </p>

Ar-SO3H

2nd) moderate deactivator, meta director

9
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Ar-CO2R

3rd) moderate deactivator, meta director

10
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Ar-COR

4th) moderate deactivator, meta director

11
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<p>Ar-NO<sub>2 </sub>Nitro</p>

Ar-NO2 Nitro

5th) strong deactivator, meta director

12
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<p>Ar-CX<sub>3</sub></p>

Ar-CX3

6th) strong deactivator, meta director

13
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Ar-N+R2

7th) strong deactivator, ortho/para director

14
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multiple substituents competing as directors in a reaction

competition is won by STRONGEST ACTIVATORS