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Chemical Structure| 110545-69-2 Chemical Structure| 110545-69-2

Structure of 110545-69-2

Chemical Structure| 110545-69-2

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Product Details of [ 110545-69-2 ]

CAS No. :110545-69-2
Formula : C5H5BrOS
M.W : 193.06
SMILES Code : COC1C(Br)=CSC=1
MDL No. :MFCD25955496

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Application In Synthesis of [ 110545-69-2 ]

* 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 [ 110545-69-2 ]

[ 110545-69-2 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 3141-26-2 ]
  • [ 67-56-1 ]
  • [ 51792-34-8 ]
  • [ 110545-69-2 ]
  • 2
  • [ 3141-26-2 ]
  • [ 124-41-4 ]
  • [ 51792-34-8 ]
  • [ 110545-69-2 ]
YieldReaction ConditionsOperation in experiment
11%; 23.2% With potassium iodide; copper(II) oxide; In methanol; for 72h;Reflux; A mixture of 21.78 g 1 (0.09 mol), 150 cm3 methanol, 15 g sodium methylate, 3.6 g KI, and 3.6 g CuO was refluxed for 72 h. After removing methanol via vacuum distillation, the residue was dissolved in ethyl acetate. The mixture was filtered and the filtrate was washed by 100 cm3 x 3 saturated brine and dried over anhydrous sodium sulfate. Ethyl acetate was then removed and the residue was purified on silica column chromatography and 4.02 g (23.2 percent) 3-bromo-4-methoxythiophene (3) and 1.44 g (11 percent) 3,4-dimethoxythiophene (2) was obtained. 3-bromo-4-methoxythiophene: 1H NMR (CDCl3, 400 MHz) ppm: d = 7.18 (d, J = 3.5 Hz, 1H), 6.23 (d, J = 3.5 Hz, 1H), 3.86 (s, CH3O); MS (70 eV): m/z = 192.0 (M+). 3,4-dimethoxythiophene: 1H NMR (CDCl3, 400 MHz) ppm: d = 6.20 (s, 2H), 3.86 (s, 2CH3O); MS (70 eV): m/z = 144.0 (M+).
 

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