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Ionic-liquid-catalyzed green synthesis of coumarin derivatives under solvent-free conditions（图）
Ionic liquid Pechmann reaction Solvent-free synthesis Phloroglucinol Pyrano[2,3-h]coumarin
2013/9/25
Brönsted acidic ionic liquids, namely 2-pyrrolidonium hydrogen sulfate, N-methyl-2-pyrrolidonium hydrogen sulfate, N-methyl-2-pyrrolidonium dihydrogen phosphate, (4-sulfobutyl)tris(4-sulfophenyl)...
Molecular recognition of aromatic amines by coumarin substituted azacrown ether
Chromogenic azacrown ether primary aromatic amines
2010/10/18
New chromogenic azacrown ether N[7-hydroxy-4-methyl-coumarin-8-methylene]-4-azadibenzo-18-crownether (HMCMADCE) was synthesised through the condensation reaction of 4-azadibenzo-18-crown- 6ether, 4-me...
An investigation of energy transfer between coumarin 35 and xanthene derivatives in liquid medium
Fluorescence energy transfer coumarin 35, pyronin compounds fluorescence intensity quenching
2010/10/15
The energy transfer between coumarin 35 (C35) and pyronin compounds, which are xanthene derivatives, i.e. pyronin B (PyB) and pyronin Y (PyY), in methanol was investigated at room temperature by using...