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One-pot synthesis and fluorescent property of novel syringaldehyde α-aminophosphonate derivatives

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journal contribution
posted on 2023-03-16, 21:40 authored by Si Ke, Duanyi Zhang, Yu Li, Ziwei Gong, Pengcheng Tang, Wanxia Tang

Seven novel syringaldehyde α-aminophosphonate derivatives (17) were synthesized based on syringaldehyde together with different aryl amines and diethyl phosphite in a one-pot, solvent free, and catalyst free reaction. All of the obtained compounds were characterized by analysis of their 1H NMR and 13C NMR, IR spectra, and FT mass spectra. The UV and fluorescence emission spectra of 17 were investigated in the concentration range of 0.1–250 μM. As the results, the maximum emission wavelength of 17 was observed between 600 and 700 nm under the exciting wavelength of 250 nm for 15 and 300 nm for 6 and 7. The emission intensity is the strongest at a concentration of 60 μM for 2, 3, and 57, 30 μM for 1, and 0.1 μM for 4.

Funding

This work was supported by Basic Scientific Research Project Fund of Heilongjiang Province Education Department under Grant (LTSW201736).

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