CH3OC6H4CO

CH3OC6H4CO represents a chemical compound containing a methoxy group (CH3O-) attached to a benzene ring (C6H4) which also has a carbonyl group (CO-) attached. This structure indicates it is a derivative of benzoic acid where a methoxy substituent is present on the phenyl ring. The specific position of the methoxy group on the benzene ring relative to the carbonyl group is not defined by this formula alone, meaning it could be ortho, meta, or para substituted. For instance, if the methoxy group is at the para position, the compound would be 4-methoxybenzoyl chloride. If it is at the ortho position, it would be 2-methoxybenzoyl chloride, and at the meta position, 3-methoxybenzoyl chloride. These compounds are typically solids at room temperature and possess characteristic chemical properties due to the presence of both the ester-like methoxy group and the reactive carbonyl group. They can undergo various chemical reactions, including nucleophilic acyl substitution at the carbonyl carbon and electrophilic aromatic substitution on the benzene ring. Their applications can range from intermediates in organic synthesis to components in fragrance or pharmaceutical industries, depending on the specific isomer and further functionalization.