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Chemical Structure| 139399-65-8 Chemical Structure| 139399-65-8

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Chemical Structure| 139399-65-8

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Product Details of [ 139399-65-8 ]

CAS No. :139399-65-8
Formula : C11H8BrNO2
M.W : 266.09
SMILES Code : CC(=O)OC1C=CC=C2C=1N=C(C=C2)Br

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Application In Synthesis of [ 139399-65-8 ]

* 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.

  • Upstream synthesis route of [ 139399-65-8 ]

[ 139399-65-8 ] Synthesis Path-Upstream   1~1

  • 1
  • [ 139399-65-8 ]
  • [ 139399-61-4 ]
YieldReaction ConditionsOperation in experiment
99% With potassium hydroxide In ethanol at 50℃; for 3 h; To a 100 ml round bottom flask was added 2-bromo-8-acetoxyquinoline (1.8 g, 6.6 mmol), K0H (1. lg, 20 mmol) and 16 ml of ethanol. . Reaction solution 50. (: The reaction was heated for 3 h. The solvent was removed, water was added to give a clear solution, and the pH was adjusted to neutral. Then extracted with CH2C12, dried over Na2SO4, filtered, and the filtrate was dried to give 1.5 g of a white solid, 99percent yield.
84.5% With potassium hydroxide In ethanol at 20℃; for 1 h; Compound 1 (137.6mg, 0.52 mM) and KOH (81 mg, 1.56 mM) were dissolved in 3mL ethanol and stirred for 1 h at room temperature(rt). The solvent was removed by reduced pressure distillation.Then the product was dissolved in 5 mL water; and the pH was adjusted to 7 with1 M HCl. Extracted twice with DCM (2 × 10 mL). The organic layers were dried byanhydrous NaSO4, filtered, and distilled under reduced pressure. Thecompound 2 was obtained as white solid. 84.5percent yield. 1H NMR(300 MHz, CDCl3) δ 7.93 (d, J = 8.6 Hz, 1H), 7.78 (s, 1H), 7.46 (t,J = 8.5 Hz, 2H), 7.34 - 7.24 (m, 1H), 7.21 (dd, J = 7.7, 1.1 Hz, 1H). 13CNMR (75 MHz, CDCl3) δ 151.38, 139.90, 138.55, 138.47, 128.28,127.19, 126.33, 118.00, 111.73. Thesespectral data matched those reported by Guido Verniest et al. 4
References: [1] Patent: CN108947898, 2018, A, . Location in patent: Paragraph 0058; 0063; 0064.
[2] Journal of Organic Chemistry, 2010, vol. 75, # 2, p. 424 - 433.
[3] Monatshefte fuer Chemie, 1991, vol. 122, # 11, p. 935 - 942.
[4] Bioorganic and Medicinal Chemistry Letters, 2019, vol. 29, # 5, p. 749 - 754.
 

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