Synthesis and Spectroscopic Properties of 2-(7-Fluoro-1H-Imidazo[4,5-B]phenazin-2-Yl)-Phenol Derivatives

Abstract:

A convenient method to synthesize 2-(7-fluoro-1H-imidazo[4,5-b]phenazin-2-yl)- phenol derivatives 3a-d with substitute (s) X (X = H, CH₂OH, Br, Cl) via the reaction of 7-fluoro- phenazine-2,3-diamine and bisulfite addition products of 2-hydroxy aromatic aldehydes in DMF solution with a yield of 80-85% was developed. Meanwhile, the ultraviolet absorption and the fluorescent spectra of these o-hydroxy derivatives of 1H-imidazo[4,5-b] phenazin were measured in methanol and one fluorescence band with a peak wavelength of 550nm with a Stokes shift around 134-141 nm for 3a-d was observed.

• Periodical: Advanced Materials Research (Volumes 287-290)
• Pages: 2057-2060
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.287-290.2057
• Online since: July 2011
• Authors: Ying Jie Lei, Jie Ouyang, Mei Ding
• Keywords: Fluorescence, Synthesis

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