Remote Activation of the Nucleophilicity of Isatin
摘要:
The concept of the remote activation of reactivity was first applied in asymmetric organocatalysis. An isatin 3-phenylimine derivative acts as a donor in the thiourea catalyzed asymmetric addition to unsaturated 1,4-ketoesters, affording aza-Michael adducts in high enantiomeric purity and yield.
Remote Activation of the Nucleophilicity of Isatin
摘要:
The concept of the remote activation of reactivity was first applied in asymmetric organocatalysis. An isatin 3-phenylimine derivative acts as a donor in the thiourea catalyzed asymmetric addition to unsaturated 1,4-ketoesters, affording aza-Michael adducts in high enantiomeric purity and yield.
Diversity-Oriented Three-Component Reactions of Diazo Compounds with Anilines and 4-Oxo-Enoates
作者:Changcheng Jing、Dong Xing、Yu Qian、Taoda Shi、Yun Zhao、Wenhao Hu
DOI:10.1002/anie.201303987
日期:2013.8.26
Choosing a path: The title reaction can proceed through two different reaction pathways, and is controlled by the addition sequence of the substrates. Divergent polyfunctional products, pyrrolidines or linear α‐amino ester derivatives, are obtained in good yields and high diastereoselectivities.