产品介绍：
Technical Notes：
1. Used in asymmetric construction of quaternary stereocenters by direct organocatalytic amination of 3- substituted oxindoles.
2. Catalyst for asymmetric Michael addition of unprotected 3 -substituted oxindoles to 1 ,4-naphthoquinone .
References:
1.Chem. Commun., 2009, 6753.
2.Beilstein J. Org. Chem. 2012, 8, 1360.
