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Chemical Structure| 452-07-3 Chemical Structure| 452-07-3

Structure of 452-07-3

Chemical Structure| 452-07-3

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Product Details of [ 452-07-3 ]

CAS No. :452-07-3
Formula : C7H5ClF2
M.W : 162.56
SMILES Code : FC1=CC=C(CCl)C(F)=C1
MDL No. :MFCD01090988

Safety of [ 452-07-3 ]

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H314
Precautionary Statements:P280-P301+P330+P331-P302+P352-P304+P340-P305+P351+P338-P310
Class:8
UN#:1760
Packing Group:

Application In Synthesis of [ 452-07-3 ]

* 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 [ 452-07-3 ]

[ 452-07-3 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 452-07-3 ]
  • [ 143-33-9 ]
  • [ 656-35-9 ]
  • 2
  • [ 452-07-3 ]
  • [ 71083-06-2 ]
  • ethyl 1-(2,4-difluorobenzyl)-8-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylate [ No CAS ]
YieldReaction ConditionsOperation in experiment
With potassium carbonate; potassium iodide; In N,N-dimethyl-formamide; at 20℃; for 18h; EXAMPLE 6; 1 -(2,4-difluorobenzyl)-8-fluoro-4-oxo-l ,4-dihydroquinoline-3-carboxylic acid; 6-2: ethyl l-(2,4-difluorobenzyl)-8-fluoro-4-oxo-l,4-dihydroquinoline-3-carboxylate; Commercially available quinolone 5-1 (200 mg, 0.85 mmol) (Acros Organics) was dissolved in 2 mL anhydrous DMF and treated with potassium carbonate (353 mg, 2.55 mmol), potassium iodide (-10 mg), and 2,4-difluoroben2yl chloride (141 mg, mL, 0.87 mmol). After 18 h at ambient temperature, sat. aq. ammonium chloride was added (~5 mL), followed by excess water. The precipitate was filtered and washed with water. The solid 6-2 was used in the next step without purification. 1H NMR (CD3OD, 300 MHz): 8.71 (s, IH), 8.13 (d, J= 8.1 Hz, IH), 7.60-7.40 (m, 2H), 7.07-6.90 (m, 3H), 5.77 (s, 2H), 4.30 (q, 2H), 1.39 (t, 3H); MS (Electrospray): m/z 362.0 (MH+).
 

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