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Chemical Structure| 1383001-27-1 Chemical Structure| 1383001-27-1

Structure of 1383001-27-1

Chemical Structure| 1383001-27-1

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Product Details of [ 1383001-27-1 ]

CAS No. :1383001-27-1
Formula : C8H8BrClN2O2
M.W : 279.52
SMILES Code : O=C(C1C(Cl)=CC(Br)=CN=1)N(C)OC
MDL No. :N/A

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Application In Synthesis of [ 1383001-27-1 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 1383001-27-1 ]

[ 1383001-27-1 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 1189513-51-6 ]
  • [ 6638-79-5 ]
  • [ 1383001-27-1 ]
YieldReaction ConditionsOperation in experiment
With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; In N,N-dimethyl-formamide; at 20℃; for 20h; Example 99[0344] [Formula 123] [0345] 1) In N,N-dimethylformamide (24 mL) was dissolved 5-bromo-3-chloropyridine-2- carboxylic acid (2.36 g), 1-hydroxybenzotriazole (2.2 g) and 3-ethyl-3-(3-dimethyl- aminopropyl)carbodiimide hydrochloride (2.87 g), Nu,Omicron-dimethylhydroxylamine hydrochloride (1.27 g) and triethylamine (1.95 mL) was added to the solution, and the resulting mixture was stirred at room temperature for 20 hours. Water was added to the obtained residue, extracted with ethyl acetate, and the organic layer was washed with water and then with a saturated brine. After drying the mixture over anhydrous magnesium sulfate, the mixture was concentrated under reduced pressure to obtain 5- bromo-3-chloro-N-methoxy-N-methylpyridine-2-carboxamide (2.67 g).MS (m/z): 279/281/283 [M+H]+
9.11 g With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; triethylamine; In chloroform; at 20℃; for 16h;Cooling with ice; 9.02 g of <strong>[1189513-51-6]5-bromo-3-chloropyridine-2-carboxylic acid</strong>, 9.10 g of 1-ethyl-3- (3- dimethylaminopropyl) carbodiimide hydrochloride, 4.11 g of N, O-dimethylhydroxylamine hydrochloride, To a mixture of 0.93 g of 4- (dimethylamino) pyridine and 100 mL of chloroform, 10.6 mL of triethylamine was added dropwise under ice cooling. After raising the temperature to room temperature and stirring for 16 hours, a saturated aqueous sodium hydrogen carbonate solution was added and the mixture was extracted with chloroform. The obtained organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to column chromatography to obtain Intermediate 11 represented by the following formula9.11 g was obtained.
  • 2
  • [ 1189513-51-6 ]
  • [ 1117-97-1 ]
  • [ 1383001-27-1 ]
YieldReaction ConditionsOperation in experiment
51% To a solution of <strong>[1189513-51-6]5-bromo-3-chloropicolinic acid</strong> (15.0 g, 63.424 mmol, 1 eq) in DMF (150 mL), EDCI(17.72 g, 114.16 mmol, 1.8 eq), HOBT (13.71 g, 101.47 mmol, 1.6 eq) and DIPEA (23.0 mL, 164.9 mmol,2.6 eq) was added at RT. After stirring the RM at RT for 10 mm MeNH(OMe) (7.95 g, 82.45 mmol, 1.3 eq)was added and the mixture was stirred at RT for 16 h. After completion of reaction (monitored by TLC), RM was diluted with water (250 mL) and extracted with EtOAc (3x250 mL). The organic layer was washed with brine (500 mL), dried over Na2SO4, filtered and evaporated under reduced pressure to get the crude product which was purified by flash CC to afford 5-bromo-3-chloro-N-methoxy-N- methylpicolinamide (9.0 g, 51percent) as white solid.
 

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