Nomenclature and Structure of Carboxyl Group

Nomenclature and Structure of Carboxyl Group Table . Names and Structures of Some Carboxylic Acids . . Nomenclature Benzoic acid Benzenecarboxylic acid (Benzoic acid) Phenylacetic acid -Phenylethanoic acid Phthalic acid Benzene- , -dicarboxylic acid In carboxylic acids, the bonds to the carboxyl carbon lie in one plane and are separated by about °. The carboxylic carbon is less electrophilic than carbonyl carbon because of the possible resonance structure shown below: . . Structure of Carboxyl Group . Give the IUPAC names of the following compounds: Ph CH CH COOH (CH ) C=CHCOOH (iii) COOH CH Some important methods of preparation of carboxylic acids are as follows. . From primary alcohols and aldehydes Primary alcohols are readily oxidised to carboxylic acids with common oxidising agents such as potassium permanganate (KMnO ) in neutral, acidic or alkaline media or by potassium dichromate (K Cr O ) and chromium trioxide (CrO ) in acidic media (Jones reagent).