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Issue 5, 2014
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One-pot synthesis of highly fluorescent polycyclic benzimidazole derivatives

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Abstract

An efficient one pot synthesis of polycyclic benzimidazole derivatives has been developed (up to 90% yield). The protocol is very mild, metal-free, and not restricted to anhydrous conditions. It also demonstrates an example of preferential electrocyclic reaction over Michael reaction. These new benzimidazole derivatives are highly fluorescent and show a dramatic change with pH; The characteristic bright bluish fluorescence was observed in MeOH (UV-light, 366 nm) but the intensity was totally diminished at pH = 2.5.

Graphical abstract: One-pot synthesis of highly fluorescent polycyclic benzimidazole derivatives

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Publication details

The article was received on 20 Aug 2013, accepted on 14 Nov 2013 and first published on 14 Nov 2013


Article type: Communication
DOI: 10.1039/C3RA44521F
Citation: RSC Adv., 2014,4, 2474-2481
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    One-pot synthesis of highly fluorescent polycyclic benzimidazole derivatives

    S. K. Manna, S. K. Mondal, A. Ahmed, A. Mandal, A. Jana, M. Ikbal, S. Samanta and J. K. Ray, RSC Adv., 2014, 4, 2474
    DOI: 10.1039/C3RA44521F

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