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1 article(s) from Schulzke, Carola

Synthesis of 9-arylalkynyl- and 9-aryl-substituted benzo[b]quinolizinium derivatives by Palladium-mediated cross-coupling reactions

Siva Sankar Murthy Bandaru,
Darinka Dzubiel,
Heiko Ihmels,
Mohebodin Karbasiyoun,
Mohamed M. A. Mahmoud and
Carola Schulzke

Beilstein J. Org. Chem. 2018, 14, 1871–1884, doi:10.3762/bjoc.14.161

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Figure 1: Structures of 9-substituted benzo[b]quinolizinium derivatives 1 and 2.

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Scheme 1: Synthesis of benzo[b]quinolizinium-9-trifluoroborate (3b) and 9-arylbenzo[b]quinolizinium derivativ...

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Scheme 2: Synthesis of 9-(arylethynyl)benzo[b]quinolizinium derivatives 2a–d.

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Figure 2: Molecular structures of derivatives 2a (top) and 2b (bottom) in the solid state. Ellipsoids are sho...

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Figure 3: Absorption spectra of derivatives 2a (A), 2b (B), 2c (C) and, 2d (D); c = 20 μM; solvents: H₂O (mag...

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Figure 4: Emission spectra of derivatives 2a (A), 2c (B) and 2d (C); c = 20 μM; λ_ex = 375 nm; solvents: H₂O (...

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Figure 5: Photometric (A) and fluorimetric (B) acid-base titration of 2c; c = 20 μM in Britton–Robinson buffe...

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Figure 6: Photometric titration of 2a (A), 2b (B), 2c (C), and 2d (D) with ct DNA in BPE buffer (16 mM Na⁺; 5...

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Figure 7: Photometric titration of 2a (A), 2b (B), 2c (C) and 2d (D) with 22AG in potassium phosphate buffer ...

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Figure 8: Fluorimetric titration of 2a (A), 2b (B) and 2d (C) with ct DNA in potassium phosphate buffer (95 m...

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Figure 9: Fluorimetric titration of 2a (A) and 2d (B) with 22AG in potassium phosphate buffer (95 mM K⁺; 5% D...

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Scheme 3: Photoinduced charge transfer upon the excitation of derivative 2d.

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Published 23 Jul 2018

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