1. Plural of benzoyl; the univalent radical C₆H₅CO derived from benzoic acid, used in organic chemistry and pharmaceutical synthesis.
Usage: chemistry; technical

Examples

• Benzoyls are commonly used as protecting groups in organic synthesis.
• The reaction involved multiple benzoyl groups attached to the polymer chain.
• Benzoyl peroxide, a compound containing benzoyls, is used in acne treatments.
• Chemists studied how different benzoyls affected the reactivity of the molecule.
• The benzoyl substituents were introduced to increase the compound's stability.