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Orientation in the Synthesis and Absorption Spectra of 1H-Pyrazolo[4,3-d][l,3]oxazole Methine Cyanine Dyes

A. I. M. Koraiem and H. A. Shindy

Department of Chemistry, Aswan Faculty of Science, Aswan, Egypt

 

Abstract: 3,5Dimethyl-1-phenyl-1H-pyrazolo[4,3-d][1,3]oxazole was prepared and oriented as starting material in the synthesis of some mono-, di-, and trimethine cyanine dyes. The new cyanines were characterized, by IR and H-1 NMR spectral data. The visible absorption spectra of the cyanine dyes are discussed.

Full paper in Portable Document Format: 526a762.pdf

 

Chemical Papers 52 (6) 762–770 (1998)

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