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CAS No. : | 445-13-6 | MDL No. : | MFCD00278479 |
Formula : | C7H5ClF3N | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | KZAMRRANXJVDCD-UHFFFAOYSA-N |
M.W : | 195.57 | Pubchem ID : | 67962 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | |
Hazard Statements: | H317-H319 | Packing Group: | |
GHS Pictogram: |
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* 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 sodium tetrahydroborate; In water; at 55℃; for 3h;Green chemistry; | General procedure: To the corresponding nitro aromatic compound (1 mmol) in3mL water, 40 mg catalyst was added and the suspension wasstirred vigorously at ambient temperature. Subsequently, 2 mmolNaBH4 was added and the mixture heated to 55 C. Afterwards, theprogress of reduction process was monitored using thin layerchromatography until the complete reduction of nitro groups. After the reduction reaction completed, the catalyst was removed withan external magnet and washed with ethanol. The products werepurified by a short column chromatography over silica gel to obtainthe corresponding compounds in high purity. 1H NMR spectra andcomparison of melting points to authentic samples were used forrecognizing of the reaction products. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | Example 45 N4-(3-Chloro-4-trifluoromethyl-phenyl)-N2,N2-dimethyl-7-(3-trifluoro-methyl-pyridin-2-yl)-6,7,8,9-tetrahydro-5H-pyrimido[4,5-d]azepine-2,4-diamine The title compound was synthesized like Example 39 with modifications to Step C as follows: Step C. A mixture of [4-chloro-7-(3-trifluoromethyl-pyridin-2-yl)-6,7,8,9-tetrahydro-5H-pyrimido-[4,5-d]azepin-2-yl]-dimethyl-amine (50 mg, 0.14 mmol), 3-chloro-4-trifluoro-methylaniline (40 mg, 0.20 mmol), and p-toluenesulfonic acid (51 mg, 0.27 mmol) in toluene (2 mL) was heated in a sealed tube at 120 C. for 18 h. The mixture was cooled, diluted with satd. aq. NaHCO3, and extracted with CH2Cl2. The organic layer was dried (MgSO4) and concentrated. The residue was purified (FCC) to give the title compound (55 mg, 78%). MS (ESI): mass calcd. for C23H21ClF6N6, 530.14; m/z found, 531.8 [M+H]+. 1H NMR (CD3OD): 8.43-8.40 (m, 1H), 8.25 (d, J=1.9 Hz, 1H), 8.08-7.98 (m, 1H), 7.66-7.62 (m, 1H), 7.57 (d, J=8.8 Hz, 1H), 7.11-7.08 (m, 1H), 3.45-3.39 (m, 4H), 3.33-3.31 (m, 1H), 3.13 (s, 6H), 3.06-3.03 (m, 2H), 2.97-2.93 (m, 2H). |
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