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Chemical Structure| 1403468-45-0 Chemical Structure| 1403468-45-0

Structure of 1403468-45-0

Chemical Structure| 1403468-45-0

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Product Details of [ 1403468-45-0 ]

CAS No. :1403468-45-0
Formula : C7H7BrFNO
M.W : 220.04
SMILES Code : CC(O)C1=NC(Br)=CC=C1F

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Application In Synthesis of [ 1403468-45-0 ]

* 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 [ 1403468-45-0 ]

[ 1403468-45-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 885267-36-7 ]
  • [ 75-16-1 ]
  • [ 1403468-45-0 ]
YieldReaction ConditionsOperation in experiment
87% To a stirred solution of <strong>[885267-36-7]6-bromo-3-fluoropicolinaldehyde</strong> (10.0 g, 49 mmol) in 200 mL of THF was added 18.0 mL of MeMgBr (3.0M in ether, 54 mmol) at -78C dropwise over a period of 35 min. The reaction was stirred at -78C for 3 hrs, then warmed up to 0 C and stirred at 0C for additional 1 hr. The mixture was quenched with 150 mL of saturated aq. NH4C1 at 0 C and extracted with three 200 mL portions of EtOAc. The combined organic extracts were concentrated; the residue was purified by flash chromatography (220 g of Si02: 0 to 30% EtOAc in hexane) to give compound 5B-1 (9.4 lg, 87%). LCMS (conditions A): tR = 1.91 min, m/e = 220 (M+H).
In tetrahydrofuran; diethyl ether; at -78 - 0℃; for 4.58333h; Step 1 To a stirred solution of <strong>[885267-36-7]6-bromo-3-fluoropicolinaldehyde</strong> E-1 (10.0 g, 49.0 mmol) in 200 mL of THF was added 18.0 mL of MeMgBr (3.0 M in ether, 54.0 mmol) at -78C dropwise over a period of 35 min. The reaction was stirred at -78C for 3 hrs, then warmed to 0 C and stirred at 0C for additional 1 h. The mixture was quenched with 150 mL of saturated aq. NH4C1 at 0 C and extracted with three 200 mL portions of EtOAc. The combined organic extracts were concentrated; the residue was purified by flash chromatography (220 g of Si02: 0 to 30% EtOAc in hexane) to give compound E-2. MS for E-2: m/e = 220 and 222 (M+l).
  • 2
  • [ 885267-36-7 ]
  • [ 1403468-45-0 ]
YieldReaction ConditionsOperation in experiment
With methylmagnesium bromide; ammonium chloride; In tetrahydrofuran; diethyl ether; water; Step 1. 1-(6-Bromo-3-fluoropyridin-2-yl)ethanol To a solution of <strong>[885267-36-7]6-bromo-3-fluoro-2-formylpyridine</strong> (1.05 g, 5.15 mmol) in THF (15 mL) at -78 C. was added dropwise methylmagnesium bromide, 3 M solution in diethyl ether (2.5 mL). The reaction was allowed to gradually warm up to RT and stirred overnight. To this was added solid ammonium chloride (5 g) and water (0.5 mL). The slurry was dried over Na2SO4, filtered, and concentrated to give the title intermediate (1.13 g, 5.14 mmol).
 

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