Question

1. Other than acetic anhydride, name the other two ways in which aniline (or amines) can be acylated (Hint: think in terms of Fischer Esterification). 2. What is the recrystallization method used for and how would this influence the melting point (and melting point range) of acetanilide? 3. Why is it necessary to acylate aniline prior to bromination? 4. During the filtration step (synthesis of 4-bromoacetanilide ), why is it important to only wash the solid with ice-cold solvent? 5. Show the complete stepwise mechanism for the synthesis of 4-bromoacetanilide from acetanilide using the actual reagents utilized in the lab experiment. For full credit, include all resonance structures, curved arrows, and lone pairs of electrons, where appropriate.

          1. Other than acetic anhydride, name the other two ways in which aniline (or amines) can be
acylated (Hint: think in terms of Fischer Esterification).
2. What is the recrystallization method used for and how would this influence the melting point
(and melting point range) of acetanilide?
3. Why is it necessary to acylate aniline prior to bromination?
4. During the filtration step (synthesis of 4-bromoacetanilide ), why is it important to only wash
the solid with ice-cold solvent?
5. Show the complete stepwise mechanism for the synthesis of 4-bromoacetanilide from
acetanilide using the actual reagents utilized in the lab experiment. For full credit, include all
resonance structures, curved arrows, and lone pairs of electrons, where appropriate.

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1. Other than acetic anhydride, name the other two ways in which aniline (or amines) can be
acylated (Hint: think in terms of Fischer Esterification).
2. What is the recrystallization method used for and how would this influence the melting point
(and melting point range) of acetanilide?
3. Why is it necessary to acylate aniline prior to bromination?
4. During the filtration step (synthesis of 4-bromoacetanilide ), why is it important to only wash
the solid with ice-cold solvent?
5. Show the complete stepwise mechanism for the synthesis of 4-bromoacetanilide from
acetanilide using the actual reagents utilized in the lab experiment. For full credit, include all
resonance structures, curved arrows, and lone pairs of electrons, where appropriate.

Added by Jeremy S.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

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Solved by Expert Temi Ajayi

03/04/2021

Step 1

Step 2: Recrystallization is used to purify a solid compound by dissolving it in a hot solvent and then allowing it to slowly cool and form crystals. This process helps remove impurities and increase the purity of the compound, which in turn can lead to a higher Show more…

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Synthesis of Acetanilide and 4-Bromoacetanilide 1.Other than acetic anhydride, name the other two ways in which aniline or amines) can be acylated (Hint: think in terms of Fischer Esterification). 2.What is the recrystallization method used for and how would this influence the melting point (and melting point range) of acetanilide? 3.Why is it necessary to acylate aniline prior to bromination? 4. During the filtration step (synthesis of 4-bromoacetanilide ), why is it important to only wash the solid with ice-cold solvent? 5. Show the complete stepwise mechanism for the synthesis of 4-bromoacetanilide from acetanilide using the actual reagents utilized in the lab experiment. For full credit, include all resonance structures, curved arrows, and lone pairs of electrons, where appropriate. l. Other than acetic anhydride,name the other two ways in which aniline (or amines can be acylated (Hint:think in terms of Fischer Esterification) 2. What is the recrystallization method used for and how would this influence the melting point (and melting point range) of acetanilide? 3. Why is it necessary to acylate aniline prior to bromination? the solid with ice-cold solvent? 5. Show the complete stepwise mechanism for the synthesis of 4-bromoacetanilide from acetanilide using the actual reagents utilized in the lab experiment. For full credit, include all resonance structures, curved arrows, and lone pairs of electrons, where appropriate.

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