CHEM - Esters
Chemistry, organic chemistry, esters - IGCSE | IBDP | DSE | GCE | IAL | AP Chemistry
Esters are a group of organic compounds that contain the functional group —COO—.
☝️ The structure of esters looks like this ☝️
Formation of Esters
Esters are formed by the reaction between carboxylic acids and alcohols in the presence of an acid catalyst.
carboxylic acid + alcohol → ester + water
For example, the formation of ethyl propanoate from propanoic acid and ethanol looks like:
Naming of Esters
The names of esters consist of two parts:
— the first part indicates the length of the carbon chain in the alcohol, and the name ends in —yl
— the second part indicates the length of the carbon chain in the carboxylic acid, and the name ends in —oate
Properties of Esters
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