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Chemical Structure| 56960-82-8 Chemical Structure| 56960-82-8

Structure of 56960-82-8

Chemical Structure| 56960-82-8

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Product Details of [ 56960-82-8 ]

CAS No. :56960-82-8
Formula : C6H6ClN3O2
M.W : 187.58
SMILES Code : CC1=C(Cl)C=C(C(N)=N1)[N+]([O-])=O
MDL No. :MFCD09839246

Safety of [ 56960-82-8 ]

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

Application In Synthesis of [ 56960-82-8 ]

* 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 [ 56960-82-8 ]

[ 56960-82-8 ] Synthesis Path-Downstream   1~1

  • 1
  • conc H2 SO4 [ No CAS ]
  • [ 36936-23-9 ]
  • [ 56960-82-8 ]
YieldReaction ConditionsOperation in experiment
5.28 g (67%) With aq. NaOH; nitric acid; 2-Amino-5-chloro-6-methyl-3-nitropyridine (46) To stirred conc H2 SO4 (70 mL) at 0 C. was added 45 (6.0 g, 41.8 mmol) in portions. To the resulting dark brown solution was added dropwise 70% HNO3 (3.5 mL, 54 mmol) at 0 C. After the addition, the reaction mixture was stirred at 50 C. under N2 for 2.5 h, cooled to room temperature and poured into crushed ice (about 700 g). The mixture was basified to pH 9 by the addition of 40% aq. NaOH dropwise with stirring and cooling (ice-water bath). The precipitate was filtered, washed with water (4*100 mL) and MeOH (3*25 mL), and dried to give 5.28 g (67%) of 46 as a yellow powder, mp 214-5 C. (lit. 214-6 C., Cress et al., J. Org. Chem. 93-6 (1976)). 1 H NMR (DMSO-d6) delta2.445 (s, 3H), 8.011 (bs, 2H), 8.340 (s, 1H).
 

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