3476-89-9, 1,2,3,4-Tetrahydroquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
A solution of 5-(3,4,5-trimethoxyphenyl)penta-(2E,4E)-dienoyl chloride in methylene chloride (3 ml) was added dropwise to a solution of 45 mg (0.34 mmol) of 1,2,3,4-tetrahydroquinoxaline(1) in pyridine (0.5 ml) over about 5 minutes with stirring in an ice bath.. After completion of the addition, the mixture was stirred for 1 hour and water was added to conduct extraction with chloroform.. An organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure.. The resultant crude oil (254 mg) was purified by column chromatography on alumina and column chromatography on silica gel to obtain 91 mg (yield: 43%) of crude crystals of the title compound.. The crude crystals were recrystallized from chloroform-ether to obtain pale yellow fien needles. Melting point: 183-185 C. 1H-NMR (DMSO-d6, 120 C.) delta: 3.71(s,6H), 3.80(s,12H), 3.97(s,4H), 6.52(d,J=14.9 Hz,2H), 6.80(s,4H), 6.85-7.00(m,4H), 7.21-7.28(m,2H), 7.36(ddd,J=14.9,9.0,1.1 Hz,2H), 7.38-7.45(m,2H)., 3476-89-9
As the paragraph descriping shows that 3476-89-9 is playing an increasingly important role.
Reference£º
Patent; Kowa Co., Ltd.; US6340682; (2002); B1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider