The product of the reaction between acetic acid (CH₃COOH) and 3-methyl-1-butanol (CH₃CH₂CH(CH₃)CH₂OH) is 3-methylbutyl acetate (CH₃CH₂CH(CH₃)CH₂OOCCH₃).

This is an esterification reaction, where the carboxylic acid (acetic acid) reacts with the alcohol (3-methyl-1-butanol) to form an ester (3-methylbutyl acetate) and water (H₂O).

Here's the chemical equation for the reaction:

CH₃COOH + CH₃CH₂CH(CH₃)CH₂OH ⇌ CH₃CH₂CH(CH₃)CH₂OOCCH₃ + H₂O

This reaction is typically catalyzed by an acid, such as sulfuric acid (H₂SO₄), to speed up the process.