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Chemical Structure| 928664-13-5 Chemical Structure| 928664-13-5

Structure of 928664-13-5

Chemical Structure| 928664-13-5

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Product Details of [ 928664-13-5 ]

CAS No. :928664-13-5
Formula : C9H5FN2O2
M.W : 192.15
SMILES Code : O=[N+](C1=CC=CC2=C1C(F)=CN=C2)[O-]
MDL No. :MFCD28661253

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Application In Synthesis of [ 928664-13-5 ]

* 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 [ 928664-13-5 ]

[ 928664-13-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 394-67-2 ]
  • [ 928664-13-5 ]
YieldReaction ConditionsOperation in experiment
Reference Example 2 4-Fluoro-5-nitroisoquinoline <strong>[394-67-2]4-Fluoroisoquinoline</strong> (3.6 g) obtained in Reference Example 1 was dissolved in concentrated sulfuric acid (20 ml), and the solution was added dropwise with a solution of potassium nitrate (3.25 g, Wako Pure Chemical Industries) in concentrated sulfuric acid (28 ml) under cooling at -5° C. so that the temperature of the reaction mixture should not exceed 5° C. The reaction mixture was stirred at 0° C. for 1 hour, poured into ice water, neutralized with 28percent aqueous ammonia (pH 8), and extracted 3 times with ethyl acetate (150 ml for each time). The combined organic layer was washed with saturated aqueous sodium hydrogencarbonate (300 ml), and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (n-hexane:ethyl acetate=3:1) to obtain the title compound (2.2 g).
With sulfuric acid; potassium nitrate; In water; at -5 - 0℃; for 1h; <strong>[394-67-2]4-Fluoroisoquinoline</strong> (3.6 g) obtained in Reference Example 1 was dissolved in concentrated sulfuric acid (20 ml), and the solution was added dropwise with a solution of potassium nitrate (3.25 g, Wako Pure Chemical Industries) in concentrated sulfuric acid (28 ml) under cooling at -5° C. so that the temperature of the reaction mixture should not exceed 5° C. The reaction mixture was stirred at 0° C. for 1 hour, poured into ice water, neutralized with 28percent aqueous ammonia (pH 8), and extracted 3 times with ethyl acetate (150 ml for each time). The combined organic layer was washed with saturated aqueous sodium hydrogencarbonate (300 ml), and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (n-hexane:ethyl acetate=3:1) to obtain the title compound (2.2 g).
Reference Example 2; 4-Fluoro-5-nitroisoquinoline; <strong>[394-67-2]4-Fluoroisoquinoline</strong> (3.6 g) obtained in Reference Example 1 was dissolved in concentrated sulfuric acid (20 ml), and the solution was added dropwise with a solution of potassium nitrate (3.25 g, Wako Pure Chemical Industries) in concentrated sulfuric acid (28 ml) under cooling at -5° C. so that the temperature of the reaction mixture should not exceed 5° C. The reaction mixture was stirred at 0° C. for 1 hour, poured into ice water, neutralized with 28percent aqueous ammonia (pH 8), and extracted 3 times with ethyl acetate (150 ml for each time). The combined organic layer was washed with saturated aqueous sodium hydrogencarbonate (300 ml), and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel chromatography (n-hexane:ethyl acetate=3:1) to obtain the title compound (2.2 g).
23 g With sulfuric acid; nitric acid; at 0 - 20℃; for 3h; Add 50 ml of sulfuric acid to the reaction flask and cool to T=0 °C.<strong>[394-67-2]4-Fluoroisoquinoline</strong> (29 g, 0.2 mmol) was added in portions.Nitric acid (1.3 eq) was added dropwise and allowed to react to room temperature for 3 h.Add the reaction solution to the ice cube, NaOHaq. Adjust pH=11,After suction filtration, the filter residue was washed with water to obtain 23 g of product.Go directly to the next step.

 

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