3-Bromo-1,5-naphthyridine, cas is 17965-71-8, it is a common heterocyclic compound, the naphthyridine compound, its synthesis route is as follows.
To a solution of 1.00 g of 3-bromo-1,5-naphthyridine in 5 mL of 1,4-dioxane, 0.67 g of tert-butylcarbamate, 2.18 g of cesium carbonate, 44 mg of tris(benzylideneacetone)dipalladium and 83 mg of 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene were added, and the mixture was stirred at 80C for 12.5 hours under an argon atmosphere. Water and chloroform were added to the reaction mixture, and the organic layer was separated. The organic layer was washed with a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The resultant residue was purified by silica gel column chromatography using silica gel; Silica Gel 60N made by KANTO CHEMICAL CO., INC., and an eluent of chloroform:methanol 10:1 to obtain 1.03 g of tert-butyl 1,5-naphthyridin-3-ylcarbamate as a yellow oily substance. 1H-NMR (DMSO-d6) delta: 1.53 (9H, s), 7.60-7.65 (1H, m), 8.32 (1H, d, J = 4.1 Hz), 8.52 (1H, s), 8.90-8.93 (1H, m), 8.97-9.00 (1H, m), 10.08 (1H, s), 17965-71-8
With the rapid development of chemical substances, we look forward to future research findings about 3-Bromo-1,5-naphthyridine
Reference£º
Patent; TOYAMA CHEMICAL CO., LTD.; Taisho Pharmaceutical Co. Ltd.; EP2022793; (2009); A1;,
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