The Yu Borylation Ligand in tandem with bis(pinacolato)diboron (Aldrich 473294) under palladium catalysis can promote direct borylation of C(sp3)-H bonds. Yu and coworkers have displayed this on both alanine-derived amides and cyclopropanes with directing group assistance from the Yu-Wasa Auxiliary (Aldrich 791806).
Yu Borylation Ligand, also referred to as 2,4-dimethoxyquinoline, has been developed by Professor Jin-Quan Yu and coworkers. 2,4-dimethoxyquinoline can be prepared by reacting 2,4-dichloroquinoline with sodium methoxide.
