Task: Text Categorization
Input (English): Not easily oxidized, these compounds can be synthesized by using an organolithium reagent on a nitrile, followed by hydrolysis of the product. Useful as solvents and flavorings, they can also be made by oxidizing a secondary alcohol. They do not affect Fehling's solution and do not react with the Tollens reagent, which differentiates them from aldehydes. FTP, name this class of compounds with a carbonyl group between two aryl groups, the simplest of which is acetone.
Output (English): Science