83570-42-7, 1-(Quinoxalin-6-yl)ethanone is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
83570-42-7, After dissolving 6-(quinoxalin-6-yl)ethan-1-one (4.6 g, 27.0 mmol) synthesized in Step 1 and diethyl oxalate (7.3 mL, 53.9 mmol) in ethanol (9 mL), a 2 M ethoxysodium solution (26.9 mL, 53.9 mmol) was slowly added dropwise thereto at 50C, and the result was refluxed for 2 hours. After cooling the result to room temperature, the solvent was vacuum concentrated, and the result was acidified by adding 2 M HCl dropwise thereto. Dichloromethane was introduced thereto for extraction, and the organic layer was dried using anhydrous magnesium sulfate and then filtered. The filtrate was concentrated and purified using column chromatography to obtain a target compound (6.7 g). 1H NMR spectrum (300 MHz, CDCl3) delta 8.96(s, 2H), 8.78(s, 1H), 8.35(dd, 1H), 8.24(d, 1H), 7.27(s, 1H), 4.44(q, 2H), 1.45(t, 3H).
As the paragraph descriping shows that 83570-42-7 is playing an increasingly important role.
Reference£º
Patent; Hanmi Pharmaceutical Co., Ltd.; LEE, Kyung Ik; JUNG, Young Hee; SONG, Ji Young; JUN, Seung Ah; (89 pag.)EP3480193; (2019); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider