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CAS No. : | 176225-08-4 | MDL No. : | MFCD03094395 |
Formula : | C7H3BrClF3O2S | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | CBIFOAHDKKGDAC-UHFFFAOYSA-N |
M.W : | 323.51 | Pubchem ID : | 2778613 |
Synonyms : |
|
Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P280-P305+P351+P338-P310 | UN#: | 1760 |
Hazard Statements: | H314 | Packing Group: | Ⅱ |
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 triethylamine; In dichloromethane; for 16h; | 2,8-Diazaspiro[4.5]decan-1 -one hydrogen chloride (200 mg, 1.049 mmol) was dissolved in a mixture of triethylamine (0.439 ml, 3.15 mmol) and dichloromethane (10 ml), and 2-bromo-5-(trifluoromethyl)benzenesulfonyl chloride (407 mg, 1 .259 mmol) was added. The reaction mixture was stirred for 16 h and the reaction mixture was concentrated in vacuo. The resulting yellow solid 8-[2-bromo-5- (trifluoromethyl)phenyl]sulfonyl}-2,8-diazaspiro[4.5]decan-1 -one (825 mg, impure) was used in the next reaction without further purification. MS ES+ve m/z 443 (M+H). 8-[2-bromo-5-(trifluoromethyl)phenyl]sulfonyl}-2,8-diazaspiro[4.5]decan-1 -one (825 mg, impure) and potassium carbonate (217 mg, 1.574 mmol) was suspended in 1 ,4- dioxane (10 ml_). Trimethylboroxine (0.219 ml_, 1.574 mmol) and Pd(PPh3)4 (121 mg, 0.105 mmol) were then added and the reaction mixture was heated to 100 C. After 20 h, the reaction was cooled, filtered through a hydrophobic frit, and concentrated in vacuo. The resulting residue was purified by silica column chromatography on SP4 (gradient elution: 0 - 20% MeOH - DCM). The resulting brown residue was further purified on MDAP twice to give 8-[2-methyl-5-(trifluoromethyl)phenyl]sulfonyl}-2,8- diazaspiro[4.5]decan-1 -one (41 mg, 0.107 mmol) as a white solid. 1 H N MR (400 MHz, DMSO-de) delta ppm 1.39 - 1.49 (m, 2 H) 1.58 - 1 .70 (m, 2 H) 1 .89 (t, J=6.80 Hz, 2 H) 2.65 (s, 3 H) 2.84 - 2.95 (m, 2 H) 3.13 (t, J=6.80 Hz, 2 H) 3.54 (ddd, J=12.63, 4.08, 3.95 Hz, 2 H) 7.63 (s, 1 H) 7.74 (d, J=7.95 Hz, 1 H) 7.98 (dd, J=8.03, 1 .40 Hz, 1 H) 8.03 (d, J=1 .21 Hz, 1 H). MS ES+ve m/z 377 (M+H). |
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