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Benzoylation reaction of -NH(2) group i...

Benzoylation reaction of `-NH_(2)` group is known as :

A

Balz - Schimann's reaction

B

Schotten-Baumann's reaction

C

Gabriel phthalimide reaction

D

Friedal craft reaction

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To solve the question regarding the benzoylation reaction of the `-NH_(2)` group, we will analyze the different reactions mentioned in the question and identify which one corresponds to benzoylation. ### Step-by-Step Solution: 1. **Understanding Benzoylation**: Benzoylation is a chemical reaction where a benzoyl group (C6H5CO-) is introduced into a compound. In the case of an amine, this involves the reaction of an amine group with benzoyl chloride (C6H5COCl). **Hint**: Remember that benzoylation specifically involves the introduction of a benzoyl group. 2. **Analyzing the Options**: - **Baal-Schemann Reaction**: This reaction involves the conversion of aniline to aryl fluoride through diazotization and does not involve benzoylation. **Hint**: Look for reactions that involve the direct introduction of a benzoyl group rather than other functional groups. - **Schwartz and Bowman Reaction**: This reaction involves the benzoylation of compounds containing active hydrogen, such as aniline, in the presence of NaOH and benzoyl chloride. This is indeed the benzoylation reaction we are looking for. **Hint**: Identify reactions that specifically mention benzoyl chloride and the formation of amides or similar products. - **Gabriel-Phthalimide Reaction**: This reaction is focused on the conversion of phthalimide to phthalic acid and does not involve benzoylation. **Hint**: Check if the reaction is related to amines or benzoylation; if not, it can be disregarded. - **Friedel-Craft Reaction**: This reaction typically involves the alkylation or acylation of aromatic compounds. However, aniline does not undergo Friedel-Craft reactions due to the electron-withdrawing effect of the amino group, making it unsuitable for benzoylation. **Hint**: Consider the reactivity of the functional groups involved; some groups may inhibit certain reactions. 3. **Conclusion**: Based on the analysis, the benzoylation reaction of the `-NH_(2)` group is known as the **Schwartz and Bowman reaction**. ### Final Answer: The benzoylation reaction of the `-NH_(2)` group is known as the **Schwartz and Bowman reaction**.
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-NH_(2) group is a strong activator towards aromatic electrophilic substiution reaction. Activating capability of -NH_(2) group can be reduced by treating with

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The -NO_(2) group in an aromatic ring deactivates the ortho and para positions for an electrophilic attack. When -NO_(2) group is present at ortho or para positions of a leaving group (Nucleofuge) it activates the ring for nucleophilic attack. The reduction of -NO_(2) group by metal in acid causes its reduction to -NH_(2) group and then the ring becomes strongly activated for a electrophilic attack. The strong activation of -NH_(2) group is moderated by its acylation with CH_(3)COCl to -NHAc group. Deacylation is carried out by hydrolysis with H_(3)O^(+) or OH^(-) . The ring alkylation by using RX//AlX_(3) is not possible in presence of -NO_(2) or -NH_(2) group but is possible in presence of -NHAc group. The product (H) is :

The -NO_(2) group in an aromatic ring deactivates the ortho and para positions for an electrophilic attack. When -NO_(2) group is present at ortho or para positions of a leaving group (Nucleofuge) it activates the ring for nucleophilic attack. The reduction of -NO_(2) group by metal in acid causes its reduction to -NH_(2) group and then the ring becomes strongly activated for a electrophilic attack. The strong activation of -NH_(2) group is moderated by its acylation with CH_(3)COCl to -NHAc group. Deacylation is carried out by hydrolysis with H_(3)O^(+) or OH^(-) . The ring alkylation by using RX//AlX_(3) is not possible in presence of -NO_(2) or -NH_(2) group but is possible in presence of -NHAc group. The product (I) is :

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