Abstract
Asymmetric functionalization of amines and their derivatives is of great significance
in synthetic chemistry and is widely used in the preparation of natural products and
pharmaceuticals. In recent years, chiral aldehyde catalysis has emerged as a well-established
and recognized tool, providing excellent catalytic activation and stereoselective
control in asymmetric reactions of N-unprotected amino acid esters and amino acid
ester analogues. In this short review, recent advances in enantioselective aldehyde
catalysis, including chiral aldehydes as organocatalysts and co-catalysis combined
with transition metals, will be summarized. Lastly, continued development of enantioselective
aldehyde catalysis is prospected in the future.
1 Introduction
2 Chiral Aldehyde Catalysis for Tethering Strategy
3 Chiral Aldehyde Catalysis for Imine Activation
4 Chiral Aldehyde/Transition Metal Cooperative Catalysis
5 Conclusion
Key words
asymmetric catalysis - organocatalysis - chiral aldehyde catalysis - asymmetric functionalization
- amines - amino acids