Primary amines react with ketones and aldehydes to form imines. Alkenes can be oxidized with ozone to form alcohols, aldehydes or ketones, or carboxylic acids. They sought to synthesize alcohols from alkyl halides, aldehydes, ketones, and alkenes. There are five types of carbonyl compounds, including aldehydes, ketones, carboxylic acids and esters. Schiff bases can be obtained by reacting amines with ketones or aldehydes. Jones reagent interacts with secondary alcohols resulting in oxidation to ketones. They are intermediates in the reductive amination of ketones and aldehydes. Compared to ketones and aldehydes, esters are relatively resistant to reduction. Oximes are usually generated by the reaction of hydroxylamine with aldehydes or ketones. It reduces aldehydes but not most ketones. This process is employed for the enantioselective hydrogenation of ketones, aldehydes, and imines. The carbonyl ylide can be generated upon reaction of the dihalocarbenes with ketones or aldehydes. A pair of ketones or aldehydes can be deoxygenated to generate an alkene. Acetylene adds to ketones and aldehydes in the presence of base catalysts. Analogous situations occur for other functional groups such as aldehydes and ketones.