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Chemical Structure| 117054-76-9 Chemical Structure| 117054-76-9

Structure of 117054-76-9

Chemical Structure| 117054-76-9

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Product Details of [ 117054-76-9 ]

CAS No. :117054-76-9
Formula : C7H5ClN2O3
M.W : 200.58
SMILES Code : O=C(N)C1=CC=CC([N+]([O-])=O)=C1Cl
MDL No. :MFCD00482025

Safety of [ 117054-76-9 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302
Precautionary Statements:P280-P305+P351+P338

Application In Synthesis of [ 117054-76-9 ]

* 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 [ 117054-76-9 ]

[ 117054-76-9 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 117054-76-9 ]
  • [ 34662-24-3 ]
YieldReaction ConditionsOperation in experiment
99% With trimethylsilylphosphate; at 20℃; for 20.0h; Step b) intermediate 10Synthesis of 2-chloro-3-nitrobenzonitrile2-chloro-3-nitrobenzamide (83 g, 0.413 mol, well dried) is added to the refluxing solution of dehydrating agent* and this mixture is then left at this temperature for 4 hours and at room temperature for 16 hours. The mixture is quenched with ice, 400 ml of water is added to facilitate the phase separation and the aqueous phase is discarded. The organic phase is washed with water and brine and then dried over anhydrous Na2SO4. The solution is filtered and concentrated to give the desired product (74.4g, 99 %) .IH NMR (300MHz, DMSO-d6) delta ppm 7.76 (t, /=7.93 Hz, IH) 8.27 (dd, /=7.93 1.47 Hz, IH) 8.36 (dd, /=8.22 1.47 Hz, IH) <n="32"/>* Preparation of trimethylsilyl polyphosphate (dehydrating agent):P2O5 (254g ; 1.79 mol) in 1 litre of anhydrous dichloromethane is stirring under reflux and 330 ml of hexamethyldisiloxane (1.54 mol) is added over 1 hour by a dropping funnel (the reaction is exothermic). The reaction mixture is then left stirring at this temperature for 1 hour.
74% With Hexamethyldisiloxane; phosphorus pentoxide; In 1,2-dichloro-ethane; at 85℃; for 18.0h;Heating / reflux; A solution of 2-chloro-3-nitrobenzamide (1.02 g, 4.9 mmol) in P2O5/(TMS)2O/1,2-dichloroethane (30 mL) was heated at 85 C. for 18 hours. After it was cooled to 25 C., the solution was filtered through a plug of silica gel (60 mL), eluding with 5% methanol/CHCl3 (400 mL). The combined washes were concentrated under reduced pressure to give 2-chloro-3-nitrobenzonitrile as an off-white solid (0.66 g, 74%). 1H NMR [(CD3)2SO]: delta 8.42 (dd, J=8.1, 1.5 Hz, 1H, H4), 8.33 (dd, J=8.1, 1.7 Hz, 1H, H6), 7.81 (t, J=8.3 Hz, 1H, H5).
 

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