Downstream synthetic route of 50998-17-9

The synthetic route of 50998-17-9 has been constantly updated, and we look forward to future research findings.

50998-17-9, 6-Bromoquinoxaline is a quinoxaline compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: A mixture of methyl 4-bromobenzoate2a (100 mg, 0.465 mmol), methyl N-(tert-butoxycarbonyl)glycinate 3a (132 mg, 0.698 mmol), Pd2(dba)3 (8.5 mg,9.3 lmol), Xantphos (16 mg, 0.028 mmol), and cesium carbonate(303 mg, 0.930 mmol) was charged with dioxane (1.0 mL). Theresulting suspension was sparged with argon via subsurface bubblingfor 5 min, and the reaction mixture was sealed and stirredat 100 C for 12 h. The reaction was cooled to ambient temperature,diluted with EtOAc (20 mL), and filtered to remove the inorganicsalts. The filtrate was concentrated to an oil, then purified bycolumn chromatography on silica gel, eluting with an EtOAc/hexanesgradient (2-30%) to afford the desired product 4a as a colorlessgum (75% isolated yield). 1H NMR (500 MHz, DMSO-d6): d 7.90(d, J = 9.0 Hz, 2H), 7.40 (d, J = 8.5 Hz, 2H), 4.39 (s, 2H), 3.83 (s, 3H),3.68 (s, 3H), 1.37 (s, 9H). LRMS (ESI) calcd for C16H21NO6 (M+Na)+:346.1, found: 346.1., 50998-17-9

The synthetic route of 50998-17-9 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Falcone, Danielle; Osimboni, Ekundayo; Guerin, David J.; Tetrahedron Letters; vol. 55; 16; (2014); p. 2646 – 2648;,
Quinoxaline – Wikipedia
Quinoxaline | C8H6N2 | ChemSpider