Add time:08/08/2019         Source:sciencedirect.com

Compound 2-chloro-4-(methoxymethyl)-6-methyl-5-nitropyridine-3-carbonitrile (2) has been obtained from 4-(methoxymethyl)-6-methyl-5-nitro-2-oxo-1,2-dihydropyridine-3-carbonitrile (1) by novel protocol using Vilsmeier–Haack chlorination and its solid state structure was analyzed using X-ray analysis. Structural features have been also studied by IR, NMR and electronic spectroscopy, and the optical properties were investigated by UV–vis absorption and fluorescence spectroscopy. Compound 2 crystallizes with two independent molecules in the asymmetric unit with almost identical geometric parameters. One CH⋯O hydrogen bond self-assembles one type of independent molecule into chains, while second type is linked by one weak aromatic π⋯π stacking interaction. The absorption and fluorescence maximum of compound 2 were observed at 290 nm and 480 nm, respectively. The effects of solvents were investigated and interpreted on the emission spectra in protic and aprotic solvents in the range 200–600 nm.

We also recommend Trading Suppliers and Manufacturers of 2-Methyl-4-nitropyridine (cas 13508-96-8). Pls Click Website Link as below: cas 13508-96-8 suppliers