Academic literature on the topic 'Quinolizinium'

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Journal articles on the topic "Quinolizinium"

1

Bandaru, Siva Sankar Murthy, Darinka Dzubiel, Heiko Ihmels, Mohebodin Karbasiyoun, Mohamed M. A. Mahmoud, and Carola Schulzke. "Synthesis of 9-arylalkynyl- and 9-aryl-substituted benzo[b]quinolizinium derivatives by Palladium-mediated cross-coupling reactions." Beilstein Journal of Organic Chemistry 14 (July 23, 2018): 1871–84. http://dx.doi.org/10.3762/bjoc.14.161.

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9-Arylbenzo[b]quinolizinium derivatives were prepared with base-free Suzuki–Miyaura coupling reactions between benzo[b]quinolizinium-9-trifluoroborate and selected benzenediazonium salts. In addition, the Sonogashira coupling reaction between 9-iodobenzo[b]quinolizinium and the arylalkyne derivatives yielded four novel 9-(arylethynyl)benzo[b]quinolizinium derivatives under relatively mild reaction conditions. The 9-(N,N-dimethylaminophenylethynyl)benzo[b]quinolizinium is only very weakly emitting, but the emission intensity increases by a factor >200 upon protonation, so that this derivativ
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2

Faulhaber, Katja, Anton Granzhan, Heiko Ihmels, and Giampietro Viola. "Detection of biomacromolecules with fluorescent light-up probes." Pure and Applied Chemistry 78, no. 12 (2006): 2325–31. http://dx.doi.org/10.1351/pac200678122325.

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The emission properties of selected benzo[b]quinolizinium (acridizinium) derivatives in the presence of double-stranded DNA and proteins are presented. Spectrophotometric studies and linear dichroism (LD) spectroscopic experiments reveal that benzo[b]quinolizinium derivatives bind to DNA, mainly by intercalation. In contrast to the 9-aminobenzo[b]quinolizinium, which exhibits a moderate emission quantum yield in water, the 6-aminobenzo[b]quinolizinium ion as well as N-phenyl-9-aminobenzo[b]quinolizinium derivatives are almost nonfluorescent. The low intrinsic fluorescence quantum yields of the
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3

Sato, Kiyoshi, Sadao Arai, Takamichi Yamagishi, and Tomoaki Tanase. "Quinolizinium hexafluorophosphate." Acta Crystallographica Section C Crystal Structure Communications 57, no. 2 (2001): 174–75. http://dx.doi.org/10.1107/s0108270100015742.

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4

O, Wa-Yi, Wing-Cheung Chan, Caifeng Xu, Jie-Ren Deng, Ben Chi-Bun Ko, and Man-Kin Wong. "A highly selective quinolizinium-based fluorescent probe for cysteine detection." RSC Advances 11, no. 53 (2021): 33294–99. http://dx.doi.org/10.1039/d1ra06104f.

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5

Das, Avijit Kumar, Heiko Ihmels, and Sarah Kölsch. "Diphenylaminostyryl-substituted quinolizinium derivatives as fluorescent light-up probes for duplex and quadruplex DNA." Photochemical & Photobiological Sciences 18, no. 6 (2019): 1373–81. http://dx.doi.org/10.1039/c9pp00096h.

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6

Wickhorst, Peter Jonas, Heiko Ihmels, Melanie Marianne Lammert-Baumgartner, Mareike Müller, and Holger Schönherr. "9-Nitrobenzo[b]quinolizinium as a fluorogenic probe for the detection of nitroreductase in vitro and in Escherichia coli." New Journal of Chemistry 46, no. 1 (2022): 39–43. http://dx.doi.org/10.1039/d1nj05230f.

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7

Kung, Karen Ka-Yan, Cai-fung Xu, Wa-Yi O, et al. "Functionalized quinolizinium-based fluorescent reagents for modification of cysteine-containing peptides and proteins." RSC Advances 12, no. 10 (2022): 6248–54. http://dx.doi.org/10.1039/d1ra08329e.

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8

Upadhyay, Nitinkumar Satyadev, Jayachandran Jayakumar, and Chien-Hong Cheng. "Facile one-pot synthesis of 2,3-dihydro-1H-indolizinium derivatives by rhodium(iii)-catalyzed intramolecular oxidative annulation via C–H activation: application to ficuseptine synthesis." Chemical Communications 53, no. 16 (2017): 2491–94. http://dx.doi.org/10.1039/c7cc00008a.

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9

Bortolozzi, Roberta, Sebastian von Gradowski, Heiko Ihmels, Katy Schäfer, and Giampietro Viola. "Selective ratiometric detection of H2O2 in water and in living cells with boronobenzo[b]quinolizinium derivatives." Chem. Commun. 50, no. 60 (2014): 8242–45. http://dx.doi.org/10.1039/c4cc02283a.

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10

Benner, Katja, Heiko Ihmels, Sarah Kölsch, and Phil M. Pithan. "Targeting abasic site-containing DNA with annelated quinolizinium derivatives: the influence of size, shape and substituents." Org. Biomol. Chem. 12, no. 11 (2014): 1725–34. http://dx.doi.org/10.1039/c3ob42140f.

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A comparative analysis showed that the type and degree of annelation as well as methyl or chloro-substitution are relevant structural features that determine the interactions of quinolizinium derivatives with abasic site-containing DNA.
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