A highly efficient DBU-catalyzed green synthesis of spiro-oxindoles
作者:Liqun Wang、Daming Zhang、Jian Li、Guangyang Xu、Jiangtao Sun
DOI:10.1039/c4ra08812c
日期:——
A DBU-catalyzed green synthesis of spiro-oxindoles with 100% atom economy has been developed under environmentally benign conditions.
在环境友好的条件下,开发了一种DBU催化的绿色合成螺环氧吲哚,其原子经济效率达到100%。
Core Structure-Based Design of Organocatalytic [3+2]-Cycloaddition Reactions: Highly Efficient and Stereocontrolled Syntheses of 3,3′-Pyrrolidonyl Spirooxindoles
作者:Bin Tan、Xiaofei Zeng、Wendy Wen Yi Leong、Zugui Shi、Carlos F. Barbas、Guofu Zhong
DOI:10.1002/chem.201103449
日期:2012.1.2
Extraordinary levels of stereocontrol were achieved in an efficientorganocatalytic asymmetric [3+2]‐cycloaddition reaction between an α‐isothiocyanato imide and various methyleneindolinones. Simple precursors were used for the rapid construction of spirocyclic oxindole derivatives with high enantiopurity and structural diversity, thus providing a new avenue of significance to medicinal chemistry and