Technical Notes：
1.Pybox ligand used in Ce-catalyzed enantioselective nitrone cycloadditions of a,ß-unsaturated 2-acylimidazoles.
2.L igand for the enantioselective Cu-catalyzed propargylic amination.
3.Ligand for the Cu-catalyzed intermolecular asymmetric propargylic dearomatization of indoles .
4.Ligand for the Pd-catalyzed asymmetric aminohydroxylation of 1,3-dienes.
5.Used in the synthesis of N-alkylated 4-pyridones by Cu-catalyzed intermolecular asymmetric propargylicamination.
6.Ligand for the Cu-catalyzed asymmetric propargylation of indolizines .
7.Ligand for the metal catalyzed asymme tric dias te reodivergent Michael addition of 2-chloromalonate esters to conjugated imines.
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