In organic chemistry, benzoyl (/ˈbɛnzoʊɪl/, BENZ-oh-il)[1] is the functional group with the formula −COC6H5 and structure −C(=O)−C6H5.
The benzoyl group is given the symbol "Bz" whereas benzyl is commonly abbreviated "Bn".
The source of many naturally occurring benzoyl compounds is the thioester benzoyl-CoA.
Irradiation of benzil generates benzoyl radicals, which have the formula PhCO.
The esters are used as a protecting groups in organic synthesis,[4] which can be easily removed by hydrolysis in dilute basic solution.