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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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Article information


Submitted
20 Aug 2013
Accepted
14 Nov 2013
First published
14 Nov 2013

RSC Adv., 2014,4, 2474-2481
Article type
Communication

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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