Esters from Carboxylic Acids R一COH+ R'-OH R-C-O-R'+H,O acid alcohol ester Esters can be made from the carboxylic acid through the Fischer esterification. Excess alcohol is used to drive the equilibrium toward the ester. Chapter 21 3Chapter 21 3 Esters from Carboxylic Acids ▪ Esters can be made from the carboxylic acid through the Fischer esterification. ▪ Excess alcohol is used to drive the equilibrium toward the ester