Chemistry · Aromatic hydrocarbons: Nomenclature, benzene - structure and aromaticity, mechanism of electrophilic substitution, halogenation, nitration
Here A is:
\( \boldsymbol{C}_{6} \boldsymbol{H}_{6}+\boldsymbol{A}+\boldsymbol{A l C l}_{3} \longrightarrow \) \( \boldsymbol{C}_{6} \boldsymbol{H}_{5} \boldsymbol{C O N H}_{2} \) Here A is:
- A. urea
- B. \( C l C O N H_{2} \)
- C. \( C H_{3} C O N H_{2} \)
- D. \( C l C H_{2} C O N H_{2} \)
Step-by-step solution
The reaction is a Friedel-Crafts acylation of benzene with an acyl chloride in the presence of AlCl3 catalyst. The product is benzamide (C6H5CONH2). To introduce the CONH2 group, the acylating agent must be chloroformamide (ClCONH2), which is an acyl chloride. Option A (urea) is not an acyl chloride; options C and D are not acyl chlorides and would give different products.
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