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Chemical Structure| 13815-89-9 Chemical Structure| 13815-89-9

Structure of 13815-89-9

Chemical Structure| 13815-89-9

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Product Details of [ 13815-89-9 ]

CAS No. :13815-89-9
Formula : C8H3BrCl2O2
M.W : 281.92
SMILES Code : O=C(Cl)C1=CC=C(C(Cl)=O)C=C1Br

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Application In Synthesis of [ 13815-89-9 ]

* 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 [ 13815-89-9 ]

[ 13815-89-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 67-56-1 ]
  • [ 13815-89-9 ]
  • [ 18643-86-2 ]
YieldReaction ConditionsOperation in experiment
5.5 g With triethylamine; at 0 - 20℃; for 2h;Inert atmosphere; A solution of 2-bromoterephthalic acid (5.000 g, 20.41 mmol) in thionyl chloride (20.00 mL, 273 mmol) was heated at 100C for 5 h. The dark colored reaction mass was cooled to room temperature and solvent was evaporated off under reduced pressure. The residual mass was cooled to OoC and methanol (20 ml) and triethylamine (5 ml, 35.5 mmol) were added slowly under nitrogen. The reaction mixture was then stirred for 2 h at ambient temperature. The solution was evaporated to dryness under reduced pressure. The residual mass was dissolved in ethylacetate (100 ml) and washed with water (2X 25ml), followed by 2N HCI (2X 25 ml) and finally with saturated sodium bicarbonate solution. Combined organic layers were dried over sodium sulfate and evaporated under reduced pressure to obtain dimethyl 2-bromobenzene-1 ,4-dicarboxylate (5.5 g, 99% of theoretical yield) as a white solid. H NMR (400 MHz, CHLOROFORM-c/) δ ppm 3.95 (d, J=1 .25 Hz, 3 H) 3.96 (d, J=1 .25 Hz, 3 H) 7.81 (dd, J=8.03, 1.25 Hz, 1 H) 8.00 (d, J=8.03 Hz, 1 H) 8.31 (s, 1 H) MS [M-H] " : 272.9/ 273.9 (rt 1.90-1.97 min)
 

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