Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2017, Issue 43, Pages 6413-6416Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201701118
Keywords
Cycloaddition; Fused-ring systems; Polycycles; Isocyanides; Multicomponent reactions
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Funding
- Guru Gobind Singh Indraprastha University, New Delhi
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A new method for the synthesis of substituted, fused, tricyclic 6,7-dihydro-1H,5H-pyrido[1,2,3-de]quinoxaline-3-amine derivatives from aldehydes, isocyanides, and 1,2,3,4-tetrahydroquinolin-8-amine in the presence of scandium(III) trifluoromethanesulfonate as the catalyst was developed. An inventive approach for the activation of the nitrilium ion with an in situ formed 4-(dimethylamino)pyridine-stabilized imine synthon was also explored to enhance the yield of the desired, fused, tricyclic systems.
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