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CAS No. : | 641571-13-3 | MDL No. : | MFCD09998833 |
Formula : | C12H9F3N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | ZQOCDOFDUXPNGM-UHFFFAOYSA-N |
M.W : | 270.21 | Pubchem ID : | 46900241 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* 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.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
99% | With water; sodium hydroxide In 1,4-dioxaneReflux | General procedure: General procedure for hydrolysis of nitrile: At a solution of nitrile derivative in dioxane (0.13M) was added NaOH (10 eq, l g/L) in H20. The mixture was heat at reflux overnight. After evaporation of the dioxane, the aqueous layer was washed with AcOEt, then acidified with HCl 2N and extract with AcOEt. The organic layer was dried over Na2S04 filtered and concentrated. |
99% | With water; sodium hydroxide In 1,4-dioxaneReflux | General procedure: General procedure for hydrolysis of nitrile: At a solution of nitrile derivative in dioxane (0,13M) was added NaOH (10 eq, lg/L) in H20. The mixture was heat at reflux overnight. After evaporation of the dioxane, the aqueous layer was washed with AcOEt, then acidified with HCl 2N and extract with AcOEt. The organic layer was dried over Na2S04 filtered and concentrated. |
74% | Stage #1: With sodium hydroxide; water In 1,4-dioxane at 100℃; Stage #2: With hydrogenchloride; water In 1,4-dioxane |
Method 27; 3-(4-Methyl-lH-imidazol-l-ylV5-(trifluoromethvπbenzoic acidTo a solution of 3-(4-methyl-lH-imidazol-l-yl)-5-(trifluoromethyl)benzonitrile (Method 26; 180 mg, 0.717 mmol) in 5 ml of dioxane was added 7 ml of a IMNaOH solution. The reaction mixture was allowed to stir overnight at 100 °C. The reaction was cooled to room temperature and quenched by careful addition of concentrated HCl until pH 3 was obtained. The aqueous phase was extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure to give 816 mg (74 percent) of the title compound as a yellow solid which was used without further purification, m/z 271. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
65% | With trans-N,N'-dimethyl-1,2-cyclohexyldiamine; potassium phosphate; copper(l) iodide In 1,4-dioxane at 115℃; for 72 h; Molecular sieve | Coupling reaction: A reaction flask was charged with 3-bromo-5-trifluoromethylbenzoic acid (compound 2, 2.7 g, 0.01 mol), 4-methyl-1H- imidazole (1.64 g, 1), trans- N, N'-dimethylcyclohexanediamine (0.28 g, 0.002 mol), 1,4-dioxane (10 vol./g), anhydrous potassium phosphate , 0.03mol) and 4A molecular sieves (0. lg / g), to form a mixed system; the mixed system is purged with nitrogen to have an oxygen content of 500ppm, finally adding cuprous iodide (0.38g, 0.002mol) The system was heated to 115 ° C, the reaction was stirred for 72 hours, TLC showed compound 2 disappeared to give the product system; and then the system was cooled to room temperature, transferred to 2M hydrochloric acid quenched, concentrated filtered without fraction To be purified solution. Adding n-butanol, extracting and separating the organic phase, extracting with n-butanol twice, and combining the organic phases; concentrating the organic phase to remove n-butanol to obtain 3- (4-methyl- -5- (trifluoromethyl) benzoic acid (Compound 3) crude. Recrystallization from methanol (4: 1 ./g) gave 1.76 g of a khaki-colored solid in 65percent yield. |
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