“…From a historical point of view, asymmetric addition of arylboronic acids to coumarins has mainly been realized by rhodium catalysis which was characterized by the development of various chiral biphosphorus ligands (Figure B-1). These advances were mainly showcased by the utilization of ( R )-Segphos, MeO-F 12 -BIPHEP and its analogue L1 , ( S )-BICMAP catalysts, Chiraphos, and the air-sensitive phospholane phosphite ligand ( R , R , R )-BOBPHOS . Additionally, some chiral diene ligands, such as L2 and L3 , were also applied specifically.…”