Benzoyl group

Benzoyl group ( marked in blue ) as part of a molecule (left), benzoyl cation (middle) and benzoyl radical (right). The benzoyl group can be found e.g. B. in benzaldehyde (R = H), acetophenone (R = CH ₃ ), benzoic acid (R = OH), benzoic acid methyl ester (R = OCH ₃ ) and benzamide (R = NH ₂ ).

In organic chemistry, the benzoyl group is the C ₆ H ₅ - (C = O) - radical , which is composed of the phenyl group and the carbonyl group and thus corresponds to benzoic acid without its hydroxyl group . It is therefore an acyl group . The benzoyl group Bz is abbreviated . However, it is better to use COPh or the like in order to avoid confusion with the similar abbreviations of the benzyl group "Bn" and "Bzl".

Benzoyl groups can be introduced into alcohols , phenols and amines with the help of benzoyl chloride ( benzoylation according to the Schotten-Baumann method or according to Einhorn in pyridine ).

See also

• Radical theory: attempts to confirm the theory
• Benzoyloxy group
• Benzonitrile
• Peroxybenzoic acid
• Dibenzoyl peroxide
• List of ligand abbreviations

literature

• Hans Beyer , Wolfgang Walter : Textbook of organic chemistry . 24th edition. Hirzel, Stuttgart 2004, ISBN 3-7776-1221-9 .