Type:
Ionic liquid promoted efficient and rapid one-pot synthesis of pyran annulated heterocyclic systems
Journal: Catalysis Letters (1572879X)Year: October 2005Volume: 104Issue: Pages: 39 - 43
DOI:10.1007/s10562-005-7433-2Language: English
Abstract
Equation presented 1,1,3,3-N,N,N,N-Tetramethylguanidinium trifluoroacetate as an ionic liquid, efficiently promotes one-pot, three-component condensation of aldehydes, alkyl nitriles and α-hydroxy or α-amino activated C-H acid to afford the corresponding pyran annulated heterocyclic systems. Ionic liquid can be recycled for subsequent reactions without any appreciable loss of efficiency. © 2005 Springer Science+Business Media, Inc.
Author Keywords
1,1,3,3-N,N,N,N-tetramethylguanidinium trifluoroacetate1,3-dimethylbarbituric acid4-hydroxy-6-methylpyrone4-hydroxycoumarinIonic liquidPyran annulated heterocyclic systemsThree-component reaction
Other Keywords
AldehydesAmino acidsCondensation1,1,3,3-N,N,N,N-tetramethylguanidinium trifluoroacetate1,3-dimethylbarbituric acid4-hydroxy-6-methylpyrone4-hydroxycoumarinIonic liquidsPyran annulated heterocyclic systemsThree-component reactionsAromatic compounds