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Chemical Structure| 89457-09-0 Chemical Structure| 89457-09-0

Structure of 89457-09-0

Chemical Structure| 89457-09-0

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Product Details of [ 89457-09-0 ]

CAS No. :89457-09-0
Formula : C11H9F3N2O2
M.W : 258.20
SMILES Code : O=C(C1=CC=C(NC(C(F)(F)F)=N2)C2=C1)OCC
MDL No. :MFCD01658435

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Application In Synthesis of [ 89457-09-0 ]

* 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 [ 89457-09-0 ]

[ 89457-09-0 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 84228-43-3 ]
  • [ 89457-09-0 ]
YieldReaction ConditionsOperation in experiment
With trifluoroacetic acid;palladium; In methanol; chloroform; EXAMPLE 90 Synthesis of 5-ethoxycarbonyl-2-trifluoromethylbenzimidazole (157) Five-percent palladium on carbon (0.50 g) was added to a solution of 4.00 g of ethyl 3-amino-4-nitro-benzoate in 100 ml of methanol, and the mixture was stirred in a hydrogen atmosphere at 50 C. for 16 hours. The solid material was separated through filtration, and the filtrate was concentrated to obtain ethyl 3,4-diaminobenzoate. Twenty milliliters of trifluoroacetic acid were added thereto, and the mixture was stirred at 60 C. for 2 hours. The reaction solution was concentrated, and chloroform was added thereto. The crystals precipitated were separated through filtration, and were dried to give 4.46 g of 5-ethoxycarbonyl-2-trifluoromethylbenzimidazole (157). Properties of Compound (157): 1 H-NMR(DMSO-d6, δ): 1.36(3H, t, J=7.0 Hz), 4.36(2H, q, J=7.0 Hz), 7.82(1H, d, J=8.5 Hz), 7.99(1H, dd, J=1.5 and 8.7 Hz), 8.33(1H, s).
 

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