Fig. 1
From: Thioketone-directed rhodium(I) catalyzed enantioselective C-H bond arylation of ferrocenes

Thiocarbonyl-chelation-assisted C–H bond arylations. a Failed attempts via palladium(II) catalyzed direct C–H arylation. b Enantioselective C–H arylation of ferrocenes enabled by rhodium(I) and monodentate phosphonite