Asymmetric assembly of 2-oxindole and α-angelica lactone units to construct vicinal quaternary chiral centers
作者:Xin Huang、Jin Peng、Lin Dong、Ying-Chun Chen
DOI:10.1039/c2cc17777c
日期:——
The first organocatalytic asymmetric assembly of MoritaâBaylisâHillman carbonates of isatins and α-angelica lactone has been studied, affording multifunctional products containing two valuable pharmacophores and vicinal quaternary chiral centers in high stereoselectivity (up to 92% ee, dr >95â:â5).