SEARCH Articles Figures Tables Acids carboxyl group By hydroxy group - hydrolysis of telluroesters to carboxylic acids and esters Carboxyl groups acidity Carboxylic acid groups Oxidation, by nitric acid of aldehyde to carboxyl group Oxidation, by nitric acid of hydroxyl to carboxyl group Primary Alcohol Groups in Carbohydrates to Carboxylic Acids Protective groups to protect carboxylic acids