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What is an ester functional group?
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What is an ester in chemistry?
Learn about the basic structure, properties, and naming of esters, a common functional group in organic chemistry. Also, understand the mechanism and examples of esterification, the reaction that forms esters from carboxylic acids and alcohols.
Sep 15, 2022 · Identify the general structure for an ester. Use common names to name esters. Name esters according to the IUPAC system. Esters have the general formula RCOOR ′, where R may be a hydrogen atom, an alkyl group, or an aryl group, and R′ may be an alkyl group or an aryl group but not a hydrogen atom.
Esters are generally identified by gas chromatography, taking advantage of their volatility. IR spectra for esters feature an intense sharp band in the range 1730–1750 cm −1 assigned to ν C=O. This peak changes depending on the functional groups attached to the carbonyl.
Oct 27, 2022 · Functional groups related to the carbonyl group include the –CHO group of an aldehyde, the –CO– group of a ketone, the –CO 2 H group of a carboxylic acid, and the –CO 2 R group of an ester. The carbonyl group, a carbon-oxygen double bond, is the key structure in these classes of organic molecules: Aldehydes contain at least one ...
Learn about the structure, properties, and reactions of esters, a class of organic compounds with an ester functional group. This web page is part of a free textbook on organic chemistry by OpenStax, a nonprofit organization.
Esters are one of the more useful functional groups. Their low reactivity makes the easy to work with and they are stable enough to be used as a solvent in organic reactions (ex. ethyl acetate). Esters are still reactive enough to undergo hydrolysis to form carboxylic acids, alcoholysis, to form different esters, and aminolysis to form amides.
An ester functional group contains a carbonyl group with a second oxygen atom single bonded to the carbonyl carbon and also single bonded to another carbon atom. A general ester structure has an R group bonded to the carbonyl carbon atom and another R group bonded to the second oxygen.
