Used as a key intermediate in the synthesis of agrochemicals, particularly herbicides and insecticides. Its structure allows for selective modification in active ingredients targeting broadleaf weeds. Commonly employed in the development of nicotinic acid derivatives that act on plant growth regulation. Also utilized in medicinal chemistry for constructing heterocyclic compounds with biological activity. Preferred in synthesis due to the stability imparted by the tert-butyl group and the reactivity of the chloro and carboxylic acid functionalities.