Highly regioselective ring-opening of aziridines with arenesulfinates on water: a facile access to β-amino/vinyl sulfones
摘要:
We have developed a LiBr catalyzed efficient synthesis of beta-amino sulfones from readily available aziridines and sodium sulfinates in good to excellent yields. The synthetic potential of beta-amino sulfones has also been demonstrated by their facile conversion to the corresponding vinyl sulfones. The use of water as reaction media, atom-economy and isolation of products by simple filtration in the case of solid beta-amino sulfones are certain green virtues of the synthetic protocol. (C) 2012 Elsevier Ltd. All rights reserved.
Unexpected Transfer of Tosyl Group of ArCH═NTs-Catalyzed by <i>N</i>-Heterocyclic Carbene
作者:Dong-Dong Chen、Xue-Long Hou、Li-Xin Dai
DOI:10.1021/jo800569g
日期:2008.7.1
Reactions of N-tosylimines with aziridines and electron-deficient unsaturated compounds in the presence of catalytic amount of NHC afforded unexpected tosyl group transfer products in good to high yields, which represent a new reaction pattern for imines as well as for catalysis of NHC.