6925-00-4,6925-00-4, Quinoxaline-6-carboxylic acid is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
0270] 5 mL of DMF was added to a solution of quinoxaline-6-carboxylic acid (60 g, 0.34 mol) in SOCl2 (300 mL). The resulting mixture was heated under reflux overnight, then cooled and concentrated to afford crude mixture of 3-chloroquinoxaline-6-carbonyl chloride and 2-chloro- quinoxaline-6-carbonyl chloride (62 g, 94 %). [0271] To a solution of O, N-dimethyl-hydroxylamine hydrochloride salt (29 g, 0.30 mol, 1.1 eq) and DIEA (182 mL, 1.08 mol, 4.0 eq) in DCM (300 mL) was added the mixture of 3-chloro- quinoxaline-6-carbonyl chloride and 2-chloro-quinoxaline-6-carbonyl chloride (52 g, 0.27 mol, 1.0 eq) at 0 C. The mixture was stirred at rt overnight, then concentrated. The resulting residue was washed with water (300 mL X 2) and extracted with EA (300 mL X 2). The combined organic layers were dried over anhydrous Na2S04, filtered and concentrated. The resulting solid was triturated with EA PE = 1/1 (300 mL) to afford 3-chloro-N-methoxy-N-methylquinoxaline-6-carboxamide (16.5 g, 24.3%).
6925-00-4 Quinoxaline-6-carboxylic acid 674813, aquinoxaline compound, is more and more widely used in various fields.
Reference£º
Patent; NEUPHARMA, INC.; QIAN, Xiangping; ZHU, Yong-liang; WO2013/40515; (2013); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider