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Chemical Structure| 717907-76-1 Chemical Structure| 717907-76-1

Structure of 717907-76-1

Chemical Structure| 717907-76-1

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Product Details of [ 717907-76-1 ]

CAS No. :717907-76-1
Formula : C13H8ClF3N4O
M.W : 328.68
SMILES Code : O=C1NC2=C(C=C(NC3=NC=C(C(F)(F)F)C(Cl)=N3)C=C2)C1
MDL No. :MFCD28133612

Safety of [ 717907-76-1 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H335
Precautionary Statements:P261-P305+P351+P338

Application In Synthesis of [ 717907-76-1 ]

* 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 [ 717907-76-1 ]

[ 717907-76-1 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 20876-36-2 ]
  • [ 717907-76-1 ]
YieldReaction ConditionsOperation in experiment
Preparation of 5-(4-Chloro-5-trifluoromethyl-pyrimidin-2-ylamino)-1,3-dihydro-indol-2-one (4) To a solution of 5-trifluoromethyl-2,4-dichloropyrimidine (214.8 g; 0.921 mol) in 1:1 DCE/tBuOH (1.240 L) was added Zinc chloride 1M solution in ether (1 eq; 0.921 L). After 0.5 hour, 5-amino-oxindole (124 g; 0.837 mol) was added followed by triethylamine (129.4 ml; 0.921 mol) keeping temperature at 25° C. The reaction was allowed to stir at room temperature overnight, then was concentrated and the product triturated from methanol as a yellow solid (224.3 g; 82percent). 1H NMR (DMSO-d6, 400 MHz) .box. 3.29 (s, 2H), 6.76 (d, J=7.9 Hz, 2H), 7.39 (d, J=8.3 Hz), 7.51 (br s, 1H), 8.71 (s, 1H), 10.33 (s, 1H), 10.49 (s, 1H), 13C NMR (DMSO-d6, 100 MHz) .box. 177.0, 161.3, 158.7 (br), 140.7, 132.8, 126.9, 123.7 (q, J=268 Hz), 121.0, 118.7, 111.2 (q, J=32 Hz), 109.6, 36.7; HPLC ret. time: 5.759 min. LRMS (M+) 329.1, 331.1.
  • 2
  • [ 20876-36-2 ]
  • [ 3932-97-6 ]
  • [ 717907-76-1 ]
YieldReaction ConditionsOperation in experiment
82% To a solution of 5-trifluoromethyl-2,4-dichloropyrimidine (214.8 g; 0.921 mol) in 1:1 DCE/tBuOH (1.240 L) was added Zinc chloride 1 M solution in ether (1 eq; 0.921 L). After 0.5 hour, 5-amino-oxindole (124 g; 0.837 mol) was added followed by triethylamine (129.4 ml; 0.921 mol) keeping temperature at 25° C. The reaction was allowed to stir at room temperature overnight, then was concentrated and the product triturated from methanol as a yellow solid (224.3 g; 82percent). 1H NMR (DMSO-d6, 400 MHz) delta 3.29 (s, 2H), 6.76 (d, J=7.9 Hz, 2H), 7.39 (d, J=8.3 Hz), 7.51 (br s, 1H), 8.71 (s, 1H), 10.33 (s, 1H), 10.49 (s, 1H). 13C NMR (DMSO-d6, 100 MHz) delta 177.0, 161.3, 158.7 (br), 140.7, 132.8, 126.9, 123.7 (q, J=268 Hz), 121.0, 118.7, 111.2 (q, J=32 Hz), 109.6, 36.7; HPLC ret. time: 5.759 min. LRMS (M+) 329.1, 331.1.
T-butyl alcohol (3 L/kg) and zinc dibromide (5.07 kg) were charged to the reactor then stirred for 10 minutes. 5-Aminooxindole (3.00 kg) and dichloroethane (3 L/kg) were then added followed by stirring 30 minutes. The product from Step 1 was added then the triethylamine was added over 30 minutes keeping the temperature below 35° C., and the reaction mixture was stirred overnight. Methanol (13.5 L) was added to the reaction mixture. The reaction mixture was then filtered through two Buchner funnels over several hours, filtration was aided by constantly moving the filter cake. The filter cakes were rinsed with methanol (6.4 L). The reactor was charged with methanol (15 L) and the wet cake was returned to the reactor and stirred for 1 hour, filtered over two Buchner funnels and washed with methanol (2.5 L). Trituration and filtration were repeated and the product was dried in the vacuum dried at 33° C. for 12 hours. GC headspace showed 0.1percent methanol remained in the product.
 

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