Purity | Size | Price | VIP Price | USA Stock *0-1 Day | Global Stock *5-7 Days | Quantity | ||||||
{[ item.p_purity ]} | {[ item.pr_size ]} | Inquiry |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,item.pr_rate,1,item.pr_is_large_size_no_price) ]} |
{[ getRatePrice(item.pr_usd, 1,1,item.pr_is_large_size_no_price) ]} | Inquiry {[ getRatePrice(item.pr_usd,item.pr_rate,item.mem_rate,item.pr_is_large_size_no_price) ]} {[ getRatePrice(item.pr_usd,1,item.mem_rate,item.pr_is_large_size_no_price) ]} | {[ item.pr_usastock ]} | in stock Inquiry - | {[ item.pr_chinastock ]} | {[ item.pr_remark ]} in stock Inquiry - | Login | Inquiry |
Please Login or Create an Account to: See VIP prices and availability
CAS No. : | 874-23-7 | MDL No. : | MFCD00001633 |
Formula : | C8H12O2 | Boiling Point : | - |
Linear Structure Formula : | (CH2)4COCHCOCH3 | InChI Key : | OEKATORRSPXJHE-UHFFFAOYSA-N |
M.W : | 140.18 | Pubchem ID : | 13400 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H227-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 |
---|---|---|
85% | With iron(III) trifluoromethanesulfonate; In water; at 80℃; for 12h; | 7-Oxooctanoic acid (1d) To a solution of 2-acetylcyclohexanone (1.0 g, 10 mmol) in H2O (10 mL), Fe(OTf)3 (0.25 g, 0.5 mmol) was added. The reaction mixture was vigorously stirred at 80 C for 12 h and the progress of reaction was monitored by TLC. The resulting mixture was warmed to room temperature and extracted with EtOAc (100 mL). The collected organic layer was washed with H2O (100 mL) and brine solution (100 mL).The combined organic layers were dried over MgSO4, filtered, and concentrated under reduced pressure. Purification was performed with flash chromatography on silica gel (petroleum ether: diethyl ether 6:4, Rf = 0.3) to afford keto carboxylic acid 1d as a colorless oil. Yield: 0.85 g, 85%; IR (cm-1): 3296 (O-H); 2948 (C-H); 2871 (C-H); 1702 (C=O). 1H NMR (ppm): 1.40-1.32 (m, 2H, CH2); 1.70-1.57 (m, 4H, CH2); 2.16 (s, 3H, CH3); 2.37 (t, 2H, J = 7.5 Hz, CH2); 2.46 (t, 2H, J = 7.4 Hz, CH2). 13C NMR (ppm): 23.4 (CH2); 24.5 (CH2); 28.5 (CH3); 30.0 (CH2); 33.8 (CH2); 43.5 (CH2); 177.4 (C=O); 209.0 (C=O). HRMS (ESI-) m/z calcd for C8H14O3H+ 157.0870, found 157.0874. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In ice-water; acetic acid; | STR59 5.2 ml (0.04 mol) of 2-acetylcyclohexanone (cf., for example, J. org. Chem. 34, 1425-1429 [1969]) are added to 6.76 g (0.04 mol) of <strong>[129946-63-0]4-cyano-2,5-difluorophenylhydrazine</strong> in 40 ml of glacial acetic acid, the reaction mixture is stirred at room temperature for 2 hours and then stirred into 250 ml of ice-water, the mixture is extracted with dichloromethane, dried over sodium sulphate and evaporated in vacuo, and the residue is recrystallized from dichloromethane/n-hexane. 3.21 g (23.5% of theory) of 4-(5-methyl-3,4-tetramethylene -1-pyrazolyl)-2,5-difluorobenzonitrile of melting point 120 C. are obtained. | |
In ice-water; acetic acid; | Example 2 (Process a) 5.2 ml (0.04 mol) of 2-acetylcyclohexanone (cf., for example, J. org. Chem. 34, 1425-1429 [1969]) are added to 6.76 g (0.04 mol) of <strong>[129946-63-0]4-cyano-2,5-difluorophenylhydrazine</strong> in 40 ml of glacial acetic acid, the reaction mixture is stirred at room temperature for 2 hours and then stirred into 250 ml of ice-water, the mixture is extracted with dichloromethane, dried over sodium sulphate and evaporated in vacuo, and the residue is recrystallized from dichloromethane/n-hexane. 3.21 g (23.5% of theory) of 4-(5-methyl-3,4-tetramethylene-1-pyrazolyl)-2,5-difluorobenzonitrile of melting point 120 C. are obtained. |