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Chemical Structure| 457-50-1 Chemical Structure| 457-50-1

Structure of 457-50-1

Chemical Structure| 457-50-1

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Product Details of [ 457-50-1 ]

CAS No. :457-50-1
Formula : C7H5F3N2O
M.W : 190.12
SMILES Code : O=C(NC1=NC=CC=C1)C(F)(F)F

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Application In Synthesis of [ 457-50-1 ]

* 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 [ 457-50-1 ]

[ 457-50-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 101990-45-8 ]
  • [ 457-50-1 ]
  • [ 1363400-65-0 ]
YieldReaction ConditionsOperation in experiment
82% With potassium carbonate; In acetonitrile; for 6h;Reflux; An amount of 70 mg (0.28 mmol) of <strong>[101990-45-8]2-bromo-5-bromomethylpyridine</strong> obtained by the above method was dissolved in 10 mL of anhydrous acetonitrile, following which 54 mg (0.28 mmol) of 2,2,2-trifluoro-N-(pyridin-2(1H)-ylidene)acetamide synthesized by the method described in "Synthesis Example 14, Step (1)" and 46 mg (0.34 mmol) of potassium carbonate were added in this order and refluxing was carried out under heating for 6 hours. Following completion of the reaction, the reaction mixture was returned to room temperature, the insoluble matter was removed by filtration, and the filtrate was concentrated under reduced pressure. Diethyl ether was then added thereto, whereupon a solid separated out. The solid was collected by filtration, washed with diethyl ether, then dried under reduced pressure in a desiccator, giving the target compound in an amount of 81 mg (yield, 82%). 1H-NMR (CDCl3, δ, ppm): 5.52 (2H, s), 6.88 (1H, t), 7.48 (1H, d), 7.78 (2H, m), 7.84 (1H, d), 8.44 (1H, d), 8.53 (1H, d) MS: m/z=360 (M+H)
82% With potassium carbonate; In acetonitrile; for 6h;Reflux; 70 mg (0.28 mmol) of the <strong>[101990-45-8]2-bromo-5-bromomethylpyridine</strong> obtained by the aforementioned method was dissolved in 10 ml of anhydrous acetonitrile, 54 mg (0.28 mmol) of 2,2,2-trifluoro-N-(pyridin-2(1H)-ylidene)acetoamide synthesized by the method described in (1) of Synthetic Example P1 and 46 mg (0.34 mmol) of potassium carbonate were added thereto in sequence, and the resulting mixture was heated and refluxed for 6 hours. After the reaction was completed, the reaction solution was returned to room temperature to filter insoluble materials, and the filtrate was concentrated under reduced pressure. Diethyl ether was added thereto to precipitate a solid, and thus the solid was collected, washed with diethyl ether, and then dried under reduced pressure in a desiccator to obtain the subject material. Amount obtained 81 mg (yield 82%). 1H-NMR (CDCl3, δ, ppm): 5.52(2H, s), 6.88(1H, t), 7.48(1H, d), 7.78(2H, m), 7.84(1H, d), 8.44(1H, d), 8.53(1H, d) MS: m/z = 360(M+H)
82% With potassium carbonate; In acetonitrile; for 6h;Reflux; Reference Example 5: N-[1-((6-bromopyridin-3-yl)methyl)pyridin-2(1H)-ylidene]-2,2,2-trifluoroacetamide (Compound P231) 70 mg (0.28 mmol) of the <strong>[101990-45-8]2-bromo-5-bromomethylpyridine</strong> obtained by the aforementioned method was dissolved in 10 ml of anhydrous acetonitrile, 54 mg (0.28 mmol) of 2,2,2-trifluoro-N-(pyridin-2(1H)-ylidene)acetamide synthesized by the method described in (1) of Reference Example 1 and 46 mg (0.34 mmol) of potassium carbonate were added thereto in sequence, and the resulting mixture was heated and refluxed for 6 hours. After the reaction was completed, the reaction solution was returned to room temperature to filter insoluble materials, and the filtrate was concentrated under reduced pressure. Diethyl ether was added thereto to precipitate a solid, and thus the solid was collected, washed with diethyl ether, and then dried under reduced pressure in a desiccator to obtain the subject material. Amount obtained 81 mg (yield 82%). 1H-NMR (CDCl3, δ, ppm) : 5.52 (2H, s), 6.88 (1H, t), 7.48 (1H, d), 7.78 (2H, m), 7.84(1H, d), 8.44 (1H, d), 8.53 (1H, d) MS:m/z = 360(M+H)
82% With potassium carbonate; In acetonitrile; for 6h;Reflux; In 10 ml of anhydrous acetonitrile, 70 mg (0.28 mmol) of <strong>[101990-45-8]2-bromo-5-bromomethylpyridine</strong> obtained by the above-described method was dissolved. To this solution, 54 mg (0.28 mmol) of 2,2,2-trifluoro-N-(pyridin-2(1H)-ylidene)acetamide synthesized by the above-described method and 46 mg (0.34 mmol) of potassium carbonate were added in this order, followed by heating under reflux for 6 hours. After completion of the reaction, the reaction liquid was returned to room temperature. Then, the insoluble matters were filtered, and the filtrate was concentrated under reduced pressure. To the residue, diethyl ether was added. As a result, a solid was precipitated. The solid was collected by filtration, washed with diethyl ether, and then dried in a desiccator under reduced pressure. Thus, the target substance was obtained. Yield: 81 mg (Percentage Yield: 82%). 1H-NMR (CDCl3, δ, ppm): 5.52 (2H, s), 6.88 (1H, t), 7.48 (1H, d), 7.78 (2H, m), 7.84 (1H, d), 8.44 (1H, d), 8.53 (1H, d) MS: m/z = 360 (M+H)

 

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