Some tips on 50998-18-0

As the paragraph descriping shows that 50998-18-0 is playing an increasingly important role.

50998-18-0,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.50998-18-0,6-Iodoquinoxaline,as a common compound, the synthetic route is as follows.

General procedure: Arene (0.10 mmol, 1.0 equiv), Pd(OAc)2 (2.2 mg, 10 mumol,10 mol%), ligand (15 mol% or 20 mol%), hydrogen phosphate (15 mol% for benzylamine substrate), aryl iodide (0.3 mmol, 3.0 equiv.) and silver acetate (50 mg, 0.30 mmol, 3.0 equiv.) were added into a 2-dram reaction vial. Solvent and (+)-NBE-CO2Me (20 mol% or 50 mol%) were added to the mixture. The vial was flushed with N2 and capped. The reaction mixture was then stirred at the selected temperature for 12-24 h. After cooling to room temperature, the mixture was filtered through Celite and eluted with ethyl acetate. The filtrate was evaporated under reduced pressure. Purification by preparative thin-layer chromatography afforded the desired product.

As the paragraph descriping shows that 50998-18-0 is playing an increasingly important role.

Reference£º
Article; Shi, Hang; Herron, Alastair N.; Shao, Ying; Shao, Qian; Yu, Jin-Quan; Nature; vol. 558; 7711; (2018); p. 581 – 585;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider

Brief introduction of 50998-18-0

50998-18-0 6-Iodoquinoxaline 24271765, aquinoxaline compound, is more and more widely used in various.

50998-18-0, 6-Iodoquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

A solution of 6-iodo-quinoxaline (0.323’g, L26mmol), malonic acid diethyl ester (0.404g, 2.52mmol), copper iodide (0.0i2g, 0.063mmol), biphenyl-2-ol (0.02 Ig,0.126mmol) and cesium carbonate (0.616g, 1.89mmol) in THF (5mL) was heated to 700C in a sealed tube for 24 hours. The solution was then cooled to room temperature, water was added and the crude product was extracted from ethyl acetate. The product was purified via silica gel column chromatography in hexane: ethyl acetate (1:1) to give 2-quinoxalin-6-yl-malonic acid diethyl ester. 2-quinoxalin-6-yl-malonic acid diethyl ester (0.066g, 0.229mmol) was added to a solution of sodium hydroxide [2N] (0.229mL) in methanol (2mL) and stirred for several hours at room temperature. The reaction was then evaporated in vacuo, IN HCl was added and the product was extracted with ethyl acetate to give 0.030g (70%) of quinoxalin-6-yl -acetic acid. 1H NMR (400 MHz, DMSO-d6) delta 12.6 (bs, IH), 8.93 (dd, 2H, J=2.0, 6.0Hz), 8.05 (d, IH, 8.8Hz), 7.99 (m, IH), 7.79 (dd, IH, J=2.0, 8.8Hz), 3.89 (s, 2H).

50998-18-0 6-Iodoquinoxaline 24271765, aquinoxaline compound, is more and more widely used in various.

Reference£º
Patent; JANSSEN PHARMACEUTICA, N.V.; WO2007/75567; (2007); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider