Tetrakis[(S)-(+)-(1-adamantyl)-(N-phthalimido)acetato]dirhodium(II)Rh2(S-PTAD)4

1. Enantioselective reactions of carbenoids and olefins.
2. Enantioselective C–H insertion reactions of carbenoids.
3. Enantioselective oxygen transfer from diazosulfonylamidines. 

This chiral Rh(II) dimer was developed in the Davies lab to perform asymmetric carbene and nitrene reactions (C-H insertion, cyclopropanation, aziridination, C-H amination) with high regio- and stereocontrol.