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Chemical Structure| 888022-82-0 Chemical Structure| 888022-82-0

Structure of 888022-82-0

Chemical Structure| 888022-82-0

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Product Details of [ 888022-82-0 ]

CAS No. :888022-82-0
Formula : C12H12F4O2
M.W : 264.22
SMILES Code : O=C(OC(C)(C)C)C1=CC=C(F)C=C1C(F)(F)F

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Application In Synthesis of [ 888022-82-0 ]

* 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 [ 888022-82-0 ]

[ 888022-82-0 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 98946-18-0 ]
  • [ 141179-72-8 ]
  • [ 888022-82-0 ]
YieldReaction ConditionsOperation in experiment
With boron trifluoride diethyl etherate; In tetrahydrofuran; at 0 - 20℃; for 18h; Reference example 1 tert-Butyl 4-fluoro-2-trifluoromethylbenzoate To a solution of <strong>[141179-72-8]4-fluoro-2-trifluoromethylbenzoic acid</strong> (5.00 g) in tetrahydrofuran (72.0 mL) were successively added tert-butyl 2,2,2-trichloroacetoimidate (8.18mL) and boron trifluoride diethyl ether complex (0.304 mL) under ice-cooling, and the reaction mixture was stirred at room temperature for 18 hours. To the reaction mixture was added 1 mol/L aqueous solution of sodium hydroxide and the mixture was extracted with ethyl acetate. The organic layer was washed with 1 mol/L aqueous solution of sodium hydroxide, water, brine, and dried over anhydrous magnesium sulfate. After filtration, the filtrate was concentrated under reduced pressure. To this residue were added diisopropyl ether-hexane and the insoluble was removed by filtration. This filtrate was concentrated under reduced pressure. The obtained crude product was purified by column chromatography on silica gel (eluent:ethyl acetate-hexane) to give tert-butyl 4-fluoro-2-trifluoromethylbenzoate (3.13 g). 1H-NMR(CDCl3) delta ppm: 1.58 (9H, s), 7.20-7.30 (1H, m), 7.35-7.45 (1H, m), 7.75-7.85 (1H, m).
  • 2
  • [ 24424-99-5 ]
  • [ 141179-72-8 ]
  • [ 888022-82-0 ]
YieldReaction ConditionsOperation in experiment
With dmap; In tetrahydrofuran; tert-butyl alcohol; at 20℃; Preparation Example 7 Di-tert-butyl dicarbonate (15 g) and 4-dimethylaminopyridine (1.8 g) were added to a mixture of <strong>[141179-72-8]4-fluoro-2-(trifluoromethyl)benzoic acid</strong> (10 g), THF (100 ml) and t-butanol (50 ml), followed by stirring at room temperature overnight. The reaction solution was concentrated under reduced pressure, water was added thereto, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate solution and saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure to obtain tret-butyl 4-fluoro-2-(trifluoromethyl)benzoate (9.21 g) as a colorless oily product.
 

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