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Chemical Structure| 870823-08-8 Chemical Structure| 870823-08-8

Structure of 870823-08-8

Chemical Structure| 870823-08-8

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Product Details of [ 870823-08-8 ]

CAS No. :870823-08-8
Formula : C20H18Cl2N2O3
M.W : 405.28
SMILES Code : O=C(OCC)C1=CC=C([C@@H](N2N=C(C3=CC(Cl)=CC(Cl)=C3)CC2=O)C)C=C1

Safety of [ 870823-08-8 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P280-P301+P312-P302+P352-P305+P351+P338

Application In Synthesis of [ 870823-08-8 ]

* 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.

  • Downstream synthetic route of [ 870823-08-8 ]

[ 870823-08-8 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 870822-92-7 ]
  • [ 172168-01-3 ]
  • [ 870823-08-8 ]
YieldReaction ConditionsOperation in experiment
In acetonitrile; at 85.0℃; for 1.0h; Ethyl 3-(3,5-dichlorophenyl)-3-oxopropanoate (4.2 g, 16.1 mmol) and {(1S)-1-[4-(ethoxycarbonyl)phenyl]ethyl}hydrazinium trifluoroacetate (5.2 g, 16.1 mmol) were heated in dry acetonitrile (100 ml) to 85 C. for 1 hr. The solvent was removed under reduced pressure, and the residue purified by column chromatography (SiO2, 20% ethyl acetate in hexanes) to give ethyl 4-{(1S)-1-[3-(3,5-dichlorophenyl)-5-oxo-4,5-dihydro-1H-pyrazol-1-yl]ethyl}benzoate as a white solid. NMR (500 MHz, CDCl3) delta: 1.38 (t, J=7.1 Hz, 3H); 1.78 (d, J=7.0 Hz, 3H); 3.55 (d, J 22.6 Hz, 1H); 3.60 (d, J=22.6 Hz, 1H); 4.36 (q, J=7.1 Hz, 2H); 5.57 (q, J=7.0 Hz, 1H); 7.39 (t, J=1.9 Hz, 1H); 7.50(d, J=8.4 Hz, 2H). 7.52 (d, J=1.9 Hz, 2H); 8.02(d, J=8.4 Hz, 2H). MS C20H18Cl2N2O3 Cald: 404.07; Obsd (M+1): 405.20.
  • 2
  • [ 875558-57-9 ]
  • [ 172168-01-3 ]
  • [ 870823-08-8 ]
 

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