1204-75-7, 3-Oxo-3,4-dihydroquinoxaline-2-carboxylic acid is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Step 4: A suspension of 3-hydroxy-2-quinoxaline carboxylic acid 6-1 (500 mg, 2.63 mmol) and thionyl chloride (2.3 mL, 31.6 mmol, 12.0 equiv) in 10 mL toluene was heated to 80 C. After 2 h of heating, the reaction mixture was cooled to room temperature and evaporated to dryness to yield the acid chloride 7-6. In a separate flask, piperidine 7-5 (0.55 g, 2.63 mmol) and triethylamine (0.73 mL, 5.26 mmol, 2.0 equiv) in 10 mL CH2Cl2 was cooled to 0 C. To this mixture was added the acid chloride 7-6 dropwise. The reaction was allowed to stir at room temperature for 3 h after which was diluted with H2O (10 mL), extracted with EtOAc (2¡Á10 mL), washed with sat. NaHCO3, dried over Na2SO4 and evaporated to dryness. The crude product was purified by flash chromatography (10-30% EtOAc/CH2Cl2) to produce 7-7 (R isomer).
As the paragraph descriping shows that 1204-75-7 is playing an increasingly important role.
Reference£º
Patent; CHENG, CLIFFORD; SHIPPS, JR., GERALD W.; HUANG, XIAOHUA; HUANG, YING; SHAO, NING; RAO, ASHWIN; PALANI, ANANDAN; ORTH, PETER; VOIGT, JOHANNES H.; HERR, ROBERT J.; ROSSITER, LANA MICHELE; ZENG, QI; SUN, XIANFENG; US2012/122837; (2012); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider