Highly Efficient Access to Iminoisocoumarins and α-Iminopyrones via AgOTf-Catalyzed Intramolecular Enyne−Amide Cyclization
摘要:
Iminoisocoumarins and alpha-iminopyrones are prepared via Sonogashira coupling and AgOTf-catalyzed 6-endo-dig O-cyclization of the enyne-amide system in dichloroethane, in one pot or stepwise, respectively.
Regioselective Synthesis of 3‐Substituted Isocoumarin‐1‐imines via Palladium‐Catalyzed Denitrogenative Transannulation of 1,2,3‐Benzotriazin‐4(3<i>H</i>)‐ones and Terminal Alkynes
作者:Madasamy Hari Balakrishnan、Popuri Sureshbabu、Ramaraju Korivi、Subramaniyan Mannathan
DOI:10.1002/asia.202300726
日期:2023.11.2
An efficient palladium-catalyzed denitrogenative transannulation strategy to access various 3-substituted isocoumarin-1-imine frameworks using 1,2,3-benzotriazin-4(3H)-ones and terminal alkynes is described.