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Chemical Structure| 2818-64-6 Chemical Structure| 2818-64-6

Structure of 2818-64-6

Chemical Structure| 2818-64-6

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Product Details of [ 2818-64-6 ]

CAS No. :2818-64-6
Formula : C9H8Cl2N2
M.W : 215.08
SMILES Code : CC1=NC2=CC(Cl)=C(Cl)C=C2N1C
MDL No. :MFCD00086008

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Application In Synthesis of [ 2818-64-6 ]

* 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 [ 2818-64-6 ]

[ 2818-64-6 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 6478-79-1 ]
  • [ 74-88-4 ]
  • [ 2818-64-6 ]
YieldReaction ConditionsOperation in experiment
With potassium hydroxide; In acetone; Triethyl orthoacetate (4.6 g, 1 eq) was added drop wise to a refluxing mixture of 4,5-dichloro-1,2-phenylenediamine (5 g, 1 eq) and a catalytic amount of p-toluenesulfonic acid in toluene (40 mL). The mixture was refluxed for 3 hrs and 5.7 g black solid was collected after evaporation of the solvents under reduced pressure and used directly in the following step without further purification. ESI-MS (m/z) calcd (found): 200.0 (201.1) for [M+H]+. To the crude 5,6-dichloro-2-methyl-benzoimidazole (5.7 g, 1 eq) (see FIG. 9) and grinded potassium hydroxide (4.8 g, 3 eq) in acetone (50 mL) was added iodomethane (5.2 g, 1.4 eq) drop wise and the mixture was stirred overnight. The solvent was evaporated under reduced pressure and the residue was partitioned between dichloromethane (200 mL) and water (200 mL). The aqueous phase was washed two times with dichloromethane (200 mL) and the combined organic phase was dried over Na2SO4 and evaporated to dryness. The crude product was recrystallized from ethyl acetate. 5.5 g product was collected as pale flakes with 90.6% yield for two steps. 1H NMR: (CDCl3) 2.55 (s, 3H), 3.63 (s, 3H), 7.28 (s, 1H), 7.68 (s, 1H). 13C NMR: (CDCl3): 13.82, 30.05, 110.20, 120.00, 125.58, 125.75, 134.97, 141.83, 153.93. ESI-MS (m/z) calcd (found): 214.0 (215.1) for [M+H]+.
 

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