Multicomponent [3+2] cycloaddition strategy: stereoselective synthesis of novel polycyclic cage-like systems and dispiro compounds
作者:Karuppiah Malathi、Selvaraj Kanchithalaivan、Raju Ranjith Kumar、Abdulrahman I. Almansour、Raju Suresh Kumar、Natarajan Arumugam
DOI:10.1016/j.tetlet.2015.09.095
日期:2015.10
The syntheses of novel structurally intriguing hexacyclic cage-like compounds have been achieved from the three-component tandem [3+2] cycloaddition–intramolecular annulationreactions of ninhydrin, α-amino acids and (E)-3-arylidene-1-methylpiperidin-4-ones. On the other hand the four-component reactions of ninhydrin, o-phenylenediamine, α-amino acids and (E)-3-arylidene-1-methylpiperidin-4-ones afforded