“…Since then, the use of chiral diene ligands has been dramatically developed for rhodium-catalyzed asymmetric 1,4-addition during the past 16 years. 10 A variety of bicyclic diene scaffolds have been successfully employed as ligands to generate the target arylation product in high yield and enantioselectivity. They are bicyclo[2,2,1]heptadiene variations (L8a, L8b, and L8c), 8 bicyclo[2,2,2]octadiene variations (L9a, L9b, L9c, and L9d), 11a-11d bicyclo [3,3,1]nonadiene variations (L10a and L10b), 12 and bicyclo [3,3,2]decadiene variation L11.…”