6-bromo-7-methylquinoline

Yellow solid

The raw materials 3, 5-difluoroaniline G-1 (5.6 g, 27 mmol) and sodium 3-nitrobenzenesulfonate (7.2 g, 32 mmol) Was added to a mixed solution of concentrated sulfuric acid (15 mL) and water (6 mL) After heating to an internal temperature of 120 ° C, glycerol (7.4 g, 80 mmol) After the addition was completed, the temperature was raised to 130 ° C and reacted for 1.5h, then cooled. The reaction was poured into crushed ice, concentrated ammonia water to adjust the pH to 5 ~ 6, the precipitated solid was filtered off, washed with water, After drying, column chromatography gave 3.82 g of white solid compound G-2 in 58percent yield. A mixture of 6-bromo-7-methylquinoline (I-2) and 6-bromo-5-methylquinoline (J-1) was synthesized. Then separated by supercritical preparative chromatography (SFC), IC-H column, mobile phase: isopropanol / carbon dioxide = 18/82, detection wavelength: 254nm. The first fraction was collected as 6-bromo-7-methylquinoline (I-2) as a white solid, yield: 25percent. The second fraction was collected as a 6-bromo-5-methylquinoline (J-1) white solid in a yield of 20percentIntermediate 4: 6-Bromo-7-methyl-quinoline; [0304] A mixture of 4-bromo-3-methylaniline (20 g, 107.5 mmol), ferric sulfate (6.6 g, 43.4 mmol), glycerol (40.8 g, 440 mmol), nitrobenzene (8.12 g, 66 mmol), and concentrated EPO The raw materials 3, 5-difluoroaniline G-1 (5.6 g, 27 mmol) and sodium 3-nitrobenzenesulfonate (7.2 g, 32 mmol) Was added to a mixed solution of concentrated sulfuric acid (15 mL) and water (6 mL) After heating to an internal temperature of 120 ° C, glycerol (7.4 g, 80 mmol) After the addition was completed, the temperature was raised to 130 ° C and reacted for 1.5h, then cooled. The reaction was poured into crushed ice, concentrated ammonia water to adjust the pH to 5 ~ 6, the precipitated solid was filtered off, washed with water, After drying, column chromatography gave 3.82 g of white solid compound G-2 in 58percent yield. A mixture of 6-bromo-7-methylquinoline (I-2) and 6-bromo-5-methylquinoline (J-1) was synthesized. Then separated by supercritical preparative chromatography (SFC), IC-H column, mobile phase: isopropanol / carbon dioxide = 18/82, detection wavelength: 254nm. The first fraction was collected as 6-bromo-7-methylquinoline (I-2) as a white solid, yield: 25percent. The second fraction was collected as a 6-bromo-5-methylquinoline (J-1) white solid in a yield of 20percentIntermediate 4: 6-Bromo-7-methyl-quinoline; [0304] A mixture of 4-bromo-3-methylaniline (20 g, 107.5 mmol), ferric sulfate (6.6 g, 43.4 mmol), glycerol (40.8 g, 440 mmol), nitrobenzene (8.12 g, 66 mmol), and concentrated EPO Pd2(dba)3 (0.918 g, 1.13 mmol) and sodium tert-butoxide (6.49 g, 67.54 mmol) were added to adegassed suspension of

Molecular Weight:222.08
XLogP3:3.2
Hydrogen Bond Acceptor Count:1
Exact Mass:220.98401
Monoisotopic Mass:220.98401
Topological Polar Surface Area:12.9
Heavy Atom Count:12
Complexity:160
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes