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Beilstein J. Org. Chem. 2024, 20, 1246–1255, doi:10.3762/bjoc.20.107
Graphical Abstract
Figure 1: Natural and synthetic compounds containing a quinoline or quinolone core-structure.
Scheme 1: Synthesis of 4. Reaction conditions: i: polyphosphoric acid, 150 °C, 2 h; ii: POBr3 (1.1 equiv), 15...
Scheme 2: Synthesis of compounds 6a–h. Reaction conditions: Pd(PPh3)4 (2.5 mol %), CuI (5 mol %), acetylene (...
Figure 2: ORTEP of 6b (CCDC 2322985).
Scheme 3: Synthesis of 8. Reaction conditions: i: polyphosphoric acid, 150 °C, 2 h [33]; ii: POBr3 (1.1 equiv), 1...
Scheme 4: Synthesis of compounds 9a–g: Reaction conditions: Pd(PPh3)4 (2.5 mol %), CuI (5 mol %), acetylene (...
Figure 3: ORTEP of 9f (CCDC 2322983).
Scheme 5: Synthesis of starting material 11. Reaction conditions: i: AcOH, Br2 (1.1 equiv), reflux, 24 h; ii:...
Scheme 6: Synthesis of compounds 12a–g. Reaction conditions: Pd(PPh3)4 (2.5 mol %), CuI (5 mol %), acetylene ...
Figure 4: ORTEP of 12d (CCDC 2322984).
Figure 5: UV–vis and emission spectra of 6a, 9a and 12a (left) and 12a, 12c, and 12e (right, λex = 380 nm) in...
Beilstein J. Org. Chem. 2021, 17, 1629–1640, doi:10.3762/bjoc.17.115
Figure 1: Applications of acridines.
Scheme 1: Synthesis of 2,4-dibromo-9-chloro-5,6,7,8-tetrahydroacridine (2).
Scheme 2: Synthesis of 2,4-bis(arylethynyl)-9-chloro-5,6,7,8-tetrahydroacridines 4a–g.
Figure 2: UV–vis absorption spectra of 4a,b and 4e–g in diluted dichloromethane solutions at room temperature...
Figure 3: Emission spectra of 4a,b and 4e–g in diluted dichloromethane solutions at room temperature (c = 1 ×...