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CAS No. : | 67515-59-7 | MDL No. : | MFCD00061284 |
Formula : | C8H3F4N | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CQZQCORFYSSCFY-UHFFFAOYSA-N |
M.W : | 189.11 | Pubchem ID : | 144255 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 | UN#: | N/A |
Hazard Statements: | H302-H312-H315-H319-H332-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 |
---|---|---|
With N-ethyl-N,N-diisopropylamine; In dimethyl sulfoxide; | EXAMPLE 347A 4-(8-azabicyclo[3.2.1]oct-8-yl)-3-(trifluoromethyl)benzonitrile <strong>[67515-59-7]4-Fluoro-3-(trifluoromethyl)benzonitrile</strong> (1.35 g, 7.14 mmol), 8-aza-bicyclo[3.2.1]octane hydrochloride (1.26 g, 8.57 mmol), and N,N-diisopropylethylamine (1.79 g, 13.8 mmol) were combined in DMSO (15 mL) and heated at 120 C. for 24 hours. The mixture was allowed to cool to ambient temperature and partitioned between diethyl ether and saturated NaHCO3 solution. The separated aqueous phase was extracted with diethyl ether and the combined organic layers were washed with water, brine, dried (Na2SO4), filtered, and the filtrate was concentrated under reduced pressure to provide the title compound which was used in the next step without further purification. | |
With N-ethyl-N,N-diisopropylamine; In dimethyl sulfoxide; | Example 347A 4-(8-azabicyclo[3.2.1]oct-8-yl)-3-(trifluoromethyl)benzonitrile <strong>[67515-59-7]4-Fluoro-3-(trifluoromethyl)benzonitrile</strong> (1.35 g, 7.14 mmol), 8-aza-bicyclo[3.2.1]octane hydrochloride (1.26 g, 8.57 mmol), and N,N-diisopropylethylamine (1.79 g, 13.8 mmol) were combined in DMSO (15 mL) and heated at 120 C. for 24 hours. The mixture was allowed to cool to ambient temperature and partitioned between diethyl ether and saturated NaHCO3 solution. The separated aqueous phase was extracted with diethyl ether and the combined organic layers were washed with water, brine, dried (Na2SO4), filtered, and the filtrate was concentrated under reduced pressure to provide the title compound which was used in the next step without further purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | A solution of 4-Fluoro-3-trifluoromethyl-benzonitrile (10 g, 52.9 mmol) sodium methoxide (10.6 mL of a 0.5 M solution in methanol, 5.3 mmol; 0.1 eq) in methanol (40 mL) was allowed to stir 12-36 h at room temperature. Acetic acid (0.32 g, 5.3 mmol) was added followed by NH4Cl (2.8 g, 52.9 mmol). The reaction was stirred at 50 C. for 24 h. The reaction was cooled, the unreacted ammonium chloride removed by filtration and the resultant white solid was used without purification 9 g (82%). | |
63% | Product distribution / selectivity; | Utilizing the procedure of Thurkauf et al. (J. Med. Chem. 1995, 38, 2251) <strong>[67515-59-7]4-fluoro-3-trifluoromethyl-benzonitrile</strong> (1.89 g, 10 mmol) was converted into 1.30 g (63%) of the title compound as brown oil. |
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