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Chemical Structure| 1036991-50-0 Chemical Structure| 1036991-50-0

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Chemical Structure| 1036991-50-0

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Product Details of [ 1036991-50-0 ]

CAS No. :1036991-50-0
Formula : C9H8N2O
M.W : 160.17
SMILES Code : CC(C1=CC2=NC=CN2C=C1)=O
MDL No. :MFCD20527734

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Application In Synthesis of [ 1036991-50-0 ]

* 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 [ 1036991-50-0 ]

[ 1036991-50-0 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 808744-34-5 ]
  • [ 97674-02-7 ]
  • [ 1036991-50-0 ]
YieldReaction ConditionsOperation in experiment
73% To a stirred solution of 7-bromoimidazo [1, 2-a] pyridine (3.6 g, 18.7 mmol) in toluene (35mL), 1-ethoxy vinyl tributyltin (7.3 mL, 20.1 mmol) and bis(triphenylphosphine)palladiumchloride (0.64 g, 0.90 mmol) were added under inert atmosphere. The reaction mixture was refluxed at 90 C for 16h. It was evaporated under vacuum and 6 N HCI solution (20 mL) was added. The resulting mixture was stirred at rt for I h and concentrated under vacuum. It was neutralized with saturated solution of NaHCO3 (2OmL) and was extractedwith EtOAc (2 x 50 mL). The organic layer was dried over anhydrous Na2SO4 andconcentrated. The crude product was purified by flash chromatography. Yield: 73% (2.1 g,yellow solid). 1H NMR (400 MHz, DMSO-d6): 68.62-8.61 (m, IH), 8.34 (d, J = 0.8 Hz, IH),8.14 (d, J = 0.8 Hz, IH), 7.81 (5, IH), 7.32-7.31 (m, IH), 2.65 (5, 3H). LCMS: (Method B)161.0 (M +H), Rt. 3.140mm, 95.59% (Max).
73% With bis-triphenylphosphine-palladium(II) chloride; In toluene; at 90℃; for 16h;Inert atmosphere; To a stirred solution of 7-bromoimidazo[1,2-a] pyridine (3.6 g, 18.7 mmol) in toluene (35 mL), 1-ethoxy vinyl tributyltin (7.3 mL, 20.1 mmol) and bis(triphenylphosphine)palladium chloride (0.64 g, 0.90 mmol) were added under inert atmosphere. The reaction mixture was refluxed at 90 C for 16h. It was evaporated under vacuum and 6 N HCI solution (20 mL) was added. The resulting mixture was stirred at rt for 1 h and concentrated under vacuum. It was neutralized with saturated solution of NaHCOs (20mL) and was extracted with EtOAc (2 x 50 mL). The organic layer was dried over anhydrous Na2SO4 and concentrated. The crude product was purified by flash chromatography. Yield: 73% (2.1 g, yellow solid). 1H NMR (400 MHz, DMSO-d6): delta 8.62-8.61 (m, 1 H), 8.34 (d, J = 0.8 Hz, 1 H), 8.14 (d, J = 0.8 Hz, 1 H), 7.81 (s, 1 H), 7.32-7.31 (m, 1 H), 2.65 (s, 3H). LCMS: (Method B) 161.0 (M +H), Rt. 3.140min, 95.59% (Max).
 

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