Category: 130115-85-4

Reference of 130115-85-4, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 130115-85-4, name is 5-Bromo-6-chloropyridin-3-ol, molecular formula is C5H3BrClNO, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

Example 13A tert-butyl (1S)-2-[(5-bromo-6-chloropyridin-3-yl)oxy]-1-(1H-indol-3-ylmethyl)ethylcarbamate A solution of 5-bromo-6-chloro-3-hydroxypyridine (2.50 g, 12 mmol) N-alpha-(tert-butoxycarbonyl)-L-tryptophanol (3.77 g, 18 mmol) and triphenylphosphine (4.72 g, 18 mmol) in THF (100 mL) was stirred at 0 C. for 20 minutes, treated with DEAD (2.83 mL, 18 mmol), stirred for 1 hour, warmed to room temperature, stirred for 15 hours, treated with ethyl acetate (300 mL), washed with brine, dried (MgSO4), filtered, and concentrated. The concentrate was purified by flash column chromatography on silica gel with 25% ethyl acetate/hexane to provide the desired product (4.58 g, 80%). MS (APCI) m/e 480, 482 (M+H)+.

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 130115-85-4, 5-Bromo-6-chloropyridin-3-ol.

Reference:
Patent; Li, Qun; Woods, Keith W.; Zhu, Gui-Dong; Fischer, John P.; Gong, Jianchun; Li, Tongmei; Gandhi, Virajkumar; Thomas, Sheela A.; Packard, Garrick K.; Song, Xiaohong; Abrams, Jason N.; Diebold, Robert B.; Dinges, Jurgen; Hutchins, Charles W.; Stoll, Vincent S.; Rosenberg, Saul H.; Giranda, Vincent L.; US2003/199511; (2003); A1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Electric Literature of 130115-85-4, As we all know, there are many different methods for the synthesis of a compound, and people can choose the synthesis method that suits their own laboratory according to the actual situation. 130115-85-4, name is 5-Bromo-6-chloropyridin-3-ol, molecular formula is C5H3BrClNO, The compound is widely used in many fields, so it is necessary to find a new synthetic route. The downstream synthesis method of this compound is introduced below.

To a solution of diethyl azodicarboxylate (1.89 mL, 12.0 mmol) in THF (30 mL) was added triphenylphosphine (3.15 g, 12.0 mmol) at 0C, and the reaction mixture was stirred for 0.5 hour. 1-BOC-(S)-pyrrolidinemethanol (2.41 g, 12.0 mmol) and 5-bromo-6-chloropyridine-3-ol (2.09 g, 10.0 mmol) were then added. The reaction mixture was allowed to warm to room temperature overnight. The solvent was removed, and the residue was chromatographed on a silica gel column, eluting with EtOAc/hexane (1:5 and 1:2) to afford an oil (3.80 g, 97%). MS (CI/NH3) m/z 391,393 (M+H)+. 1H NMR (DMSO-d6, 300 MHz) delta 1.65-2.05 (m, 4H), 3.20-3.35 (m, 2H), 3.95-4.15 (m, 3H), 7.98 (d, J = 2.9 Hz, 1H), 8.21 (d, J = 2.9 Hz, 1H).

While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 130115-85-4, 5-Bromo-6-chloropyridin-3-ol.

Reference:
Patent; Abbott Laboratories; EP1047690; (2004); B1;,
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem