Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 72830-09-2, Name is 2-Chloromethyl-3,4-dimethoxypyridinium chloride, molecular formula is C8H11Cl2NO2, belongs to pyridine-derivatives compound, is a common compound. In a patnet, author is Jiang, Xindong, once mentioned the new application about 72830-09-2, Safety of 2-Chloromethyl-3,4-dimethoxypyridinium chloride.
Synthesis, properties and application of novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis(BF2) fluorescent dyes: BOPYPYs
Novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis(BF2) fluorescent dyes (BOPYPYs) were obtained by reaction of pyrrole-2-carboxaldehyde with 1-(pyrazin-2-yl)hydrazine in the presence of Et3N-BF3.Et2O for the first time. The absorption maxima of pyrazine-fused BOPYPY are obviously bathochromic shifts, in contrast to those of the reported BOPPY, indicating that the discrepant substitute groups between pyridine and pyrazine result in the remarkable wavelength difference. The new series of BOPYPYs possess high molar extinction coefficients, high fluorescence quantum yields, and larger Stokes shifts. A Knoevenagel reaction of BOPYPY with 4-dimethylaminobenzaldehyde smoothly produced the dye with the extension of pi-conjugation. Dimethylamino-containing BOPYPY as a pH-responsive fluorescent sensor could detect pH value. (C) 2019 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
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Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem