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Why does acetylation of - NH2 group of a...

Why does acetylation of - `NH_2` group of aniline reduce its activity effect?

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Due to electron-withdrawing effect of the acetyl group, the lone pair of electrons on N-atom is attracted by by C=O group. As a result, lone apir of elecrons on N-atom is not exclusively available for donation to the benzene ring and hence activating effect of the `NH_(2)` group is reduced.
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Why does acylation of -NH_(2) of aniline reduces its activating effect?

Give reasons : Acetylation of aniline reduces its activation effect.

Give reasons for the following (a) Acetylation of aniline reduces its activation effect. (b) CH_(3)NH_(2) is more basic than C_(6)H_(5)NH_(2) . (c) Although -NH_(2) is o/p directing group, yet aniline on nitration gives a significant amount of m-nitroaniline.

Assertion: Aniline does not undergo Friedel-Crafts reactions. Reason: -NH_2 group of aniline reacts with AlCl_3 to give acid-base reaction.

PRADEEP-ORGANIC COMPOUNDS CONTAINING NITROGEN-NCERT EXEMPLAR PROBLEMS WITH ANSWERS, HINTS AND SOLUTIONS (SHORT ANSWER QUESTIONS)
  1. What is Hinsberg reagent?

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  2. Why is benzene diazonium chloride not stored and is used immediately a...

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  3. Why does acetylation of - NH2 group of aniline reduce its activity eff...

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  4. Explain why MeNH(2) is stronger base than MeOH ?

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  5. What is the role of pyridine in the acelation reaction of amines?

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  6. Under the reaction condition (acidic, basic) the coupling reaction of ...

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  7. Predict the product of reaciton for aniline with bromine in non-polar...

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  8. Arraange the following compounds in increasing order of dipole moment?...

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  9. What is the structure and IUPAC name of the compound, allyl amine?

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  10. Write down the IUPAC name of

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  11. A compound Z with molecular formula C(3)H(9)N reacts with C(6)H(5)SO(2...

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  12. A primary amine, RNH(2) can be reacted with CH(3)-X to get secondary a...

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  13. Complete the following reaction

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  14. Why is aniline soluble in aqueous HCl?

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  15. Suggest a route by which the following conversion can be accomplished.

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  16. Identify A and B in the following reaction.

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  17. How will you carry out the follwing conversion? (i) Toluene -p-tolui...

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  18. Write following conversions (i) Nitrobenzene-Acetanilide (ii) Acet...

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  19. A solution contains 1g mol. Each of p-toluene diazonium chloride and p...

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  20. How will you bring out the following conversion?

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