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Chemical Structure| 1186518-59-1 Chemical Structure| 1186518-59-1

Structure of 1186518-59-1

Chemical Structure| 1186518-59-1

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Product Details of [ 1186518-59-1 ]

CAS No. :1186518-59-1
Formula : C8H7F2N
M.W : 155.14
SMILES Code : C=CC1=CN=C(C(F)F)C=C1

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Application In Synthesis of [ 1186518-59-1 ]

* 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 [ 1186518-59-1 ]

[ 1186518-59-1 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 845827-13-6 ]
  • potassium vinyltrifluoroborate [ No CAS ]
  • [ 1186518-59-1 ]
YieldReaction ConditionsOperation in experiment
75% With caesium carbonate;triphenylphosphine; palladium dichloride; In tetrahydrofuran; water; at 80℃; for 16h; To a stirred suspension of potassium vinyltrifluoroborate (3.32 g, 24.8 mmol), PdCl2 (0.1 g, 0.56 mmol) and PPh3 (0.45 g, 1.71 mmol) in 60 mL of THF-H2O (9:1) were added Cs2CO3 (20.2 g, 62 mmol) and <strong>[845827-13-6]5-bromo-2-(difluoromethyl)pyridine</strong> (4.3 g, 20.7 mmol). The resulting reaction mixture was heated to 80 0C and stirred for 16 h. After completion of the reaction, the reaction mixture was cooled to room temperature, treated with water and extracted with CH2Cl2. The organic layer was dried over anhydrous Na2SO4 and the solvents were evaporated in vacuo. The residue was purified by column chromatography (SiO2, 5% Et2O/pentane) to afford the title compound (2.46 g, 75% yield). MS: 156 [M+l]+; 1H-NMR (300 MHz, CDCl3): delta 8.64 (s, IH), 7.86 (d, IH, J= 8.3 Hz), 7.60 (d, IH, J= 8.3 Hz), 6.74 (dd, IH, J= 18, 11.2 Hz), 6.63 (t, IH, J= 55.6 Hz), 5.91 (d, IH, J= 18 Hz), 5.48 (d, IH, J= 11.2 Hz).
 

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