C6H5COCl Why it is Benzoyl Chloride?

Nomenclature Breakdown: Why "Benzoyl"?

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The name Benzoyl chloride (C₆H₅COCl) is derived directly from its parent acid, Benzoic acid (C₆H₅COOH).

• When you remove the -OH group from Benzoic acid, the remaining C₆H₅CO- structure is called the Benzoyl group.
• Because the -OH is replaced by a Chlorine atom, the word chloride is added to the end.

⚠️ Common Student Mistake

Do not confuse Benzoyl with Benzyl!
• Benzoyl chloride: C₆H₅COCl (Contains a carbonyl group)
• Benzyl chloride: C₆H₅CH₂Cl (Contains a methylene group)