55687-02-0, 6-Bromo-2-chloroquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
55687-02-0, Preparation of tert-butyl 2-(4-(6-bromoquinoxalin-2-yl)phenyl)-2-oxoethylcarbamate A suspension of tert-butyl 2-oxo-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethylcarbamate (1.5 g, 4.15 mmol, Eq: 1.00), 6-bromo-2-chloroquinoxaline (1.01 g, 4.15 mmol, Eq: 1.00), cesium carbonate (2.71 g, 8.3 mmol, Eq: 2) and tetrakis(triphenylphosphine)palladium (0) (480 mg, 415 mumol, Eq: 0.1) in Dioxane (20 ml) and Water (2 ml) was purged with nitrogen for 10 min. then r*n. Mixture was heated at 80 C. for 16 hrs. Solvent removed in vacuo, the black residue filtered through a pad of Celite, washed with EtOAc, concentrated, triturated with ether, light yellow solid filtered, dried to obtain tert-butyl 2-(4-(6-bromoquinoxalin-2-yl)phenyl)-2-oxoethylcarbamate (1.7 g, 3.84 mmol, 92.6% yield) as a light yellow powder. LC/MS (M++H)=443
As the paragraph descriping shows that 55687-02-0 is playing an increasingly important role.
Reference£º
Patent; Alam, Muzaffar; Berthel, Steven Joseph; Brinkman, John A.; Hawley, Ronald Charles; Li, Hongju; Palmer, Wylie Solang; Pietranico-Cole, Sherrie; Sarabu, Ramakanth; Smith, Mark; So, Sung-Sau; Yi, Lin; Zhai, Yansheng; Zhang, Qiang; Zhao, Shu-Hai; US2012/230951; (2012); A1;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider