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CAS No. : | 112-12-9 | MDL No. : | MFCD00009583 |
Formula : | C11H22O | Boiling Point : | - |
Linear Structure Formula : | C9H19C(O)CH3 | InChI Key : | KYWIYKKSMDLRDC-UHFFFAOYSA-N |
M.W : | 170.29 | Pubchem ID : | 8163 |
Synonyms : |
Methylnonylketone;IBI-246
|
Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P210-P280-P370+P378-P403+P235-P501 | UN#: | 3082 |
Hazard Statements: | H227-H410-H372 | Packing Group: | Ⅲ |
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 |
---|---|---|
100% | A solution of 5 undecan-2-one (306 mg, 1.8 mmol) in 6 THF (8 mL) was cooled to -78 C. , then 7 LDA (2M solution in THF, 1.05 mL, 2.1 mmol) was added slowly. The mixture was stirred at -78 C. for 45 mins. A solution of 8 <strong>[300374-83-8]2,2,2-trifluoro-1-(3,4-dimethoxyphenyl)ethanone</strong> (234 mg, 1.0 mmol) in THF (2 mL) was added slowly. After stirred at -78 C. for 4 hrs, the mixture was warmed to RT for 30 mins. 20 mL of Sat'd aq. NH4Cl was added. This mixture was extracted with diethyl ether (30 ml) twice. The combined ether layer was washed with brine (20 mL), dried over Na2SO4 and concentrated under vacuum. The residue was purified by ISCO flash column (0-10% 9 ethyl acetate/hexanes to afford 10 title compound 404 mg (100%). LC/MS: Rf=6.88 min, purity>95%, (M+H)+=404.68. 1H NMR (300 MHz, CDCl3) δ 7.13-7.22 (m, 1H), 6.91-7.05 (m, 1H), 6.83 (d, J=8.50 Hz, 1H), 3.85 (s, 3H), 3.86 (s, 3H), 3.05-3.36 (m, 2H), 2.28-2.58 (m, 2H), 1.40-1.61 (m, 2H), 1.22 (br. s., 12H), 0.86 (t. J=6.45 Hz, 3H) | |
35 mg | To a solution of undecan-2-one (306 mg, 1.8 mmol) in THF(8 mL) at 78 C, LDA (2 M solution in THF, 1.1 mL, 2.2 mmol) wasadded slowly. The mixture was stirred at 78 C for 45 min. Next, asolution of <strong>[300374-83-8]2,2,2-trifluoro-1-(3,4-dimethoxyphenyl)ethanone</strong>(234 mg, 1.0 mmol) in THF (0.5 mL) was added slowly. The solutionwas stirred at 78 C for 3 h 40 mL of saturated NH4Cl was addedand the mixture was extracted from 20 mL of diethyl ether twice.The ether layers were combined and washed with 20 mL of brine,dried over Na2SO4 and concentrated by rotary evaporation. Theresidue was purified by silica chromatography with 0e10% ethylacetate/hexanes. The residue was re-suspended in toluene (4 mL),mixed with pTsOH (48 mg, 0.25 mmol), and heated at 125 C for 1 h.After completion, the mixture was concentrated by rotary evaporationand purified by silica with 0e10% ethyl acetate/hexanes togive the title compound. Yield 35 mg, 0.095 mmol (9.5%). LC/MS:Rf 8.42 min. Purity >95%. 1H NMR (300 MHz, CHLOROFORM-d):d 7.32 (s, J 3.51 Hz, 1H), 7.26 (s, J 3.04 Hz, 1H), 6.98 (s, J 3.30 Hz,1H), 6.66e6.72 (m, 1H), 6.50 (s, 1H), 3.94 (d, J 2.93 Hz, 6H), 2.77(d, J 7.62 Hz, 2H), 1.65 (d, J 7.62 Hz, 3H), 1.23e1.47 (m, 11H),0.83e0.93 (m, 3H), 0.00 (s, 1H). m/z 391.1855 [M Na]. |