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Chemical Structure| 6938-27-8 Chemical Structure| 6938-27-8

Structure of 6938-27-8

Chemical Structure| 6938-27-8

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Product Details of [ 6938-27-8 ]

CAS No. :6938-27-8
Formula : C9H6N2O3
M.W : 190.16
SMILES Code : [O-][N+](=O)C1=CC=CC2=NC(=O)CC=C12
MDL No. :MFCD11110268
InChI Key :NRZABPOFVNBWMI-UHFFFAOYSA-N
Pubchem ID :243776

Safety of [ 6938-27-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Application In Synthesis of [ 6938-27-8 ]

* 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 [ 6938-27-8 ]

[ 6938-27-8 ] Synthesis Path-Downstream   1~4

  • 2
  • [ 6938-27-8 ]
  • [ 10026-13-8 ]
  • [ 13067-94-2 ]
  • 3
  • [ 13067-94-2 ]
  • [ 6938-27-8 ]
YieldReaction ConditionsOperation in experiment
92% With perchloric acid; In water; acetonitrile; at 100℃; for 72.0h; General procedure: Acetonitrile (25?mL) and 70% perchloric acid solution (25?mL) were added onto 1 equiv. of the quinoline derivatives. The reaction mixture was stirred at 100?C overnight. The reaction mixture was then poured into ice, neutralized with KOH and extracted twice with dichloromethane. The organic layer was washed with water, dried over anhydrous MgSO4 and evaporated in vacuo. The crude residues were purified by chromatography on silica gel using adapted eluent and recrystallized if necessary to give compounds 7, 14, 19, 20. 4-methyl-8-nitroquinolin-2(1H)-one 7 (C10H8N2O3) was isolated and recrystallized in acetonitrile to yield a yellow solid (92%, 11?mmol, 2.2?g).
82% With hydrogenchloride; In water; for 16.0h;Heating / reflux;Product distribution / selectivity; A solution of <strong>[13067-94-2]2-chloro-5-nitroquinoline</strong> (1.92 mmol) in 10% hydrochloric acid (50 mL)was heated at reflux for 16 h. The insoluble solids were removed by filtration and the filtrate was extracted with ethyl acetate (5 x 100 mL). The combined organic layers were washed with brine (50 mL) and concentrated to provide 5-nitro-2-oxo-1,2-dihydroquinoline in 82% yield as a yellow solid.
82% With hydrogenchloride; water; for 16.0h;Reflux; 2. Synthesis of 5-nitro-2-oxo-l,2-dihvdroquinoline.A solution of <strong>[13067-94-2]2-chloro-5-nitroquinoline</strong> (1.92 mmol) in 10% hydrochloric acid (50 mL)was heated at reflux for 16 h. The insoluble solids were removed by filtration and the filtrate was extracted with ethyl acetate (5 x 100 mL). The combined organic layers were washed with brine (50 mL) and concentrated to provide 5-nitro-2-oxo-l,2-dihydroquinoline in 82% yield as a yellow solid.
82% With hydrogenchloride; water; for 16.0h;Reflux; 2. Synthesis of 5-nitro-2-oxo-l,2-dihydroquinoline.A solution of <strong>[13067-94-2]2-chloro-5-nitroquinoline</strong> (1.92 mmol) in 10% hydrochloric acid (50 mL)was heated at reflux for 16 h. The insoluble solids were removed by filtration and the filtrate was extracted with ethyl acetate (5 x 100 mL). The combined organic layers were washed with brine (50 mL) and concentrated to provide 5-nitro-2-oxo-l,2-dihydroquinoline in 82% yield as a yellow solid.

  • 4
  • [ 6938-27-8 ]
  • [ 13067-94-2 ]
YieldReaction ConditionsOperation in experiment
75% With trichlorophosphate; In 1,2-dichloro-ethane; at 80℃; for 12.0h; General procedure: A solution containing compound 9a [38] (1.0 equiv) or 9b [32] (1.0 equiv) in 1,2-DCE, and POCl3 (2.0 equiv) were stirred at 80C for 12h. The solvent and remained reagents were evaporated to afford 14a and 14b. 2-Chloro-5-nitroquinoline (14a) [43] Following the general procedure F, chlorination of 9a (100.0mg, 0.50mmol) with POCl3 (0.09mL, 1.0mmol) affords 14a (78.0mg). Yield 75%.
 

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