Used in organic synthesis as a boronic ester coupling partner in Suzuki-Miyaura cross-coupling reactions to construct biaryl and heteroaryl frameworks. Its quinoline core with a methyl substituent enhances electronic and steric properties, making it valuable in the development of pharmaceuticals, agrochemicals, and functional materials such as organic light-emitting diodes (OLEDs). The pinacol boronate group offers stability and ease of handling, facilitating its use in iterative synthesis and library generation for drug discovery.