Intramolecular Keto Lactam Condensation: A Convenient and Straightforward Approach to Bicyclic Vinylogous Lactams
作者:Pei-Qiang Huang、Ting Fan
DOI:10.1002/ejoc.201701060
日期:2017.11.24
lyl trifluoromethanesulfonate (TBDMSOTf), lactam activation with triflicanhydride (Tf2O), and a tandem cyclocondensation reaction. The reaction can be run in a one-pot manner or in a two-step fashion, both under mild conditions. The yields for the one-pot version were 52–80 %. In some cases, the two-step version gave higher overall yields (44–85 %) than the one-pot version.