Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 1080-74-6, name is 2-(3-Oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 2-(3-Oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile
A mixture of compound 1 (0.45 g, 0.41 mmol), AcONH4 (0.13 g,1.65 mmol) and 2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile(0.48 g, 2.47 mmol) in chloroform (30 mL) was stirredunder an atmosphere of N2 gas at 80 C overnight. The reactionmixture was then allowed to cool to room temperature. Next,dichloromethane and methanol were poured into the cooledcompound mixture for precipitation. The crude compound wasfiltered and purified by column chromatography on silica gel usingdichloromethane as the eluent to gain pure product SP-IC (2) as a red solid (0.42 g); yield 57.53%. FTIR-ATR (ZnSe, cm-1): 2894, 2220,1697, 1653, 1586, 1540, 1386; 1H NMR (CDCl3, 500 MHz, ppm):delta 8.78 (4H, s), 8.69 (4H, d, J 7.95 Hz), 8.04 (4H, d, J 7.90 Hz), 7.88(4H, d, J 6.75 Hz), 7.78e7.70 (12H, m), 7.67 (4H, s), 7.03 (4H, d,J 1.20 Hz), 2.48 (7H, t, J 7.95 Hz), 1.50-4 (8H, m), 1.19-1.07(25H, m), 0.80 (12H, t, J 7.05 Hz); 13C NMR (CDCl3,125 MHz, ppm):delta 188.18, 168.96, 160.56, 155.07, 147.36, 141.76, 141.51, 139.92, 137.98,136.87, 135.21, 134.60, 133.59, 129.87, 125.38, 124.35, 123.83, 122.86,121.46, 121.28, 114.44, 114.36, 69.90, 31.49, 30.79, 29.70, 29.08,28.70, 22.47, 14.09; UV-Vis (CHCl3) lmax/nm(epsilon/105 mol1 dm3 cm-1): 539 (1.44); Found: C, 78.18; H, 4.90; N,6.22%; molecular formula C117H88N8O4S4 requires C, 78.15; H, 4.93;N, 6.23%; Found: [MH] 1797.5803; molecular formulaC117H88N8O4S4 requires [MH] 1797.5811.
According to the analysis of related databases, 1080-74-6, the application of this compound in the production field has become more and more popular.
Reference:
Article; Park, Seo Yeon; Park, Gi Eun; Choi, Suna; Lee, Ji Hyung; Lee, Dae Hee; Cho, Min Ju; Choi, Dong Hoon; Dyes and Pigments; vol. 146; (2017); p. 226 – 233;,
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