Abstract
Transition metal-catalyzed enantioselective C–H functionalization has emerged as an
efficient and powerful strategy to access various chiral molecules. Recently, this
strategy has also provided a complementary pathway to the construction of P- and S-stereogenic compounds. In this short review, we summarize the development and applications
of various catalytic systems: Pd(II)/mono-N-protected amino acids (MPAA), Pd(0)/trivalent phosphorus chiral ligands, chiral cyclopentadienyl-ligated
metal catalysts [CpxM(III)] (M = Rh, Ir), half-sandwich d6 Ir(III) and Ru(II) with a chiral carboxylic acid (CCA) ligand, Ir(I)/chiral bidentate
boryl ligand, and Ir(I)/chiral cation, for accessing these chiral compounds via enantioselective
C–H functionalization.
1 Introduction
2 Pd(II)/Mono-N-protected Amino Acids
3 Pd(0)/Trivalent Phosphorus Chiral Ligands
4 Chiral Cyclopentadienyl-Ligated Metal Catalysts [CpxM(III)] (M = Rh, Ir)
5 Half-sandwich d6 Ir(III) and Ru(II) with a Chiral Carboxylic Acid (CCA) Ligand
6 Ir(I)/Chiral Bidentate Boryl Ligand
7 Ir(I)/Chiral Cation
8 Conclusion and Outlook
Key words
enantioselectivity - C–H functionalization -
P- and
S-stereogenic compounds - chiral ligands - transition metals