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Chemical Structure| 940289-80-5 Chemical Structure| 940289-80-5

Structure of 940289-80-5

Chemical Structure| 940289-80-5

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Product Details of [ 940289-80-5 ]

CAS No. :940289-80-5
Formula : C12H8F3N
M.W : 223.20
SMILES Code : FC(F)(C1=CC=NC(C2=CC=CC=C2)=C1)F
MDL No. :MFCD28802212

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Application In Synthesis of [ 940289-80-5 ]

* 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 [ 940289-80-5 ]

[ 940289-80-5 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 175205-81-9 ]
  • [ 98-80-6 ]
  • [ 940289-80-5 ]
YieldReaction ConditionsOperation in experiment
79% With palladium diacetate; potassium carbonate; triphenylphosphine; In methanol; acetonitrile; at 65℃; for 24h;Inert atmosphere; General procedure: Method B: The preparation of 2-Bromopyridines with arylboronic acids was according to literature procedures.[1] To a 50-mL fire-dried flask was charged with 2-Bromopyridines (5 mmol, 1.0 eq), arylboronic acid (5.5 mmol, 1.5 eq), K2CO3 (1.38 g, 10.0 mmol, 2.0 eq), Pd(OAc)2 (56.0 mg, 0.25 mmol, 5.0 mol% ), PPh3 (131.0 mg, 0.5 mmol, 10.0 mol% ), CH3CN (10.0 mL) and methanol (5.0 mL). The mixture was degassed through a freeze-thaw-pump thread for three times. The reaction was stirred at 65 C for 24 hours. To the reaction mixture was added brine (15 mL) and ethyl acetate (15 mL). The phase was separated and the aqueous phase was extracted with ethyl acetate (4 × 15 mL). The combined organic phase was dried over Na2SO4 and concentrated under vacuum. The product was isolated by flash-column chromatography on silica gel (300-400 mesh).
69.8% With palladium diacetate; potassium carbonate; In ethanol; water; at 80℃; for 16h;Inert atmosphere; To a mixture of <strong>[175205-81-9]2-bromo-4-(trifluoromethyl)pyridine</strong> (2.0 g, 8.85 mmol),phenylboronicacid (1.1 g, 9.02 mmol) in ethanol (40 mL) and water (10 mL) was added palladium diacetate (0.1 g, 0.45 mmol) and potassium carbonate (3.66 g, 26.5 mmol) under N2 atmosphere. The reaction mixture was stirred at 80C for 16 h, then filtered and concentrated in vacuo. The crude was purified by flash chromatography (eluting with 10% EtOAc in petroleum ether) to afford the desired compound (1.38 g, 69.8%) as a yellow oil. LCMS (ESI): mlz 224.1 [M+Hf?.
  • 2
  • [ 5123-13-7 ]
  • [ 175205-81-9 ]
  • [ 940289-80-5 ]
 

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