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CAS No. : | 4056-78-4 | MDL No. : | MFCD01735467 |
Formula : | C7H10O4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LNGJOYPCXLOTKL-UHFFFAOYSA-N |
M.W : | 158.15 g/mol | Pubchem ID : | 107216 |
Synonyms : |
|
Num. heavy atoms : | 11 |
Num. arom. heavy atoms : | 0 |
Fraction Csp3 : | 0.71 |
Num. rotatable bonds : | 2 |
Num. H-bond acceptors : | 4.0 |
Num. H-bond donors : | 2.0 |
Molar Refractivity : | 37.19 |
TPSA : | 74.6 Ų |
GI absorption : | High |
BBB permeant : | No |
P-gp substrate : | No |
CYP1A2 inhibitor : | No |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -7.17 cm/s |
Log Po/w (iLOGP) : | 0.75 |
Log Po/w (XLOGP3) : | 0.14 |
Log Po/w (WLOGP) : | 0.57 |
Log Po/w (MLOGP) : | 0.21 |
Log Po/w (SILICOS-IT) : | 0.03 |
Consensus Log Po/w : | 0.34 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 1.0 |
Bioavailability Score : | 0.56 |
Log S (ESOL) : | -0.78 |
Solubility : | 26.4 mg/ml ; 0.167 mol/l |
Class : | Very soluble |
Log S (Ali) : | -1.26 |
Solubility : | 8.63 mg/ml ; 0.0546 mol/l |
Class : | Very soluble |
Log S (SILICOS-IT) : | 0.46 |
Solubility : | 454.0 mg/ml ; 2.87 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 0.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 2.4 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H315-H319-H332-H335 | Packing Group: | N/A |
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 |
---|---|---|
58% | With ruthenium trichloride; sodium periodate In water; ethyl acetate; acetonitrile at 5 - 39℃; Industry scale | A 22-L, 3-neck, round bottom flask was equipped with a mechanical stirrer, a J-KEM temperature controller, and anitrogen inlet. The flask was charged with norbornene (200 g, 2.123 mol), ethyl acetate(1.95 L), and acetonitrile (1.95 L). The reaction mixture was cooled to 5 °C using anacetone/dry ice bath. Ruthenium trichloride (9.69 g, 46.72 mmol) was added in oneportion followed by the slow addition of a suspension of sodium periodate (1.816 kg,8.707 mol) in water (2.925 L) over 30 min. The reaction slowly began to exotherm and was monitored to keep the temperature between 10 °C and 15 °C. After 90 min thereaction mixture suddenly thickened to the point where stirring was difficult andexothermed rapidly up to 39 °C (a large amount of dry ice was added to the cooling bath to control the exotherm). The reaction mixture was allowed to cool to 20 °C, the dryice/acetone bath was removed, and the mixture was stirred at room temperature overnight.The solids were removed by filtration through a pad of celite and the filtrate wasconcentrated to a solid which was triturated with hexane (2 L), filtered, and rinsed with hexane (2 x 500 mL) to yield 195 g (58percent) of cyclopentane-l,3-dicarboxylic acid.1H NMR (500 Hz, DMSO-<3/4) δ ppm 12.07 (s, 2H), 2.66-2.73 (m, 2H), 2.06-2.12 (m, 1H), 1.85-1.89 (m, 1H), 1.72-1.85 (m, 4H). |
53% | With sodium periodate; water In chloroform at 20℃; for 48 h; | A mixture of commercially available norbonene (15 g) and RuCl3 (0.3 g) in CHCl3 (100 mL) was stirred at room temperature for 5 min. Then a solution OfNaIO4 (163 g) in H2O (1200 mL) was added and the mixture was stirred at room temperature for 2 d. The mixture was filtered through a pad of celite.(R). and the organic phase was separated. The aqueous phase was saturated with NaCl and extracted with EtOAc (3 x 500 mL). The combined organic phases were treated with MgSO4 and charcoal, filtered and concentrated to afford the crude title compound as thick slightly purple liquid (13.5 g, 53percent). [MH]+ = 159. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | at 7 - 12℃; for 16 h; Reflux | A 5-L, 3-neck, roundbottom flask was equipped with a mechanical stirrer, a J-KEM temperature controller, and a reflux condenser. The flask was charged with cyclopentane-l,3-dicarboxylic acid(357 g, 2.262 mol) and methanol (1.75 L). The solution was cooled to 7 °C using anice/water bath. Concentrated sulfuric acid (70 mL) was added dropwise over 30 minresulting in an exotherm up to 12 °C. The reaction mixture was heated to reflux andstirred for 16 h when TLC analysis (10 percent methanol/ethyl acetate) indicated that thereaction was complete. The reaction mixture was concentrated, redissolved in methyl- 179 -ATI-2514175vl tert-butyl ether, and washed with saturated aqueous sodium bicarbonate (2 x 150 mL) and brine (2 x 150 mL). The organic layer was dried over sodium sulfate, filtered, and concentrated. The resulting clear oil was dissolved in hexane (2 L) and treated with a 2 N aqueous sodium hydroxide solution (950 mL) until the pH ~ 10. The layers were separated and the aqueous layer was extracted with hexane (4 x 1 L). The organic layers were combined, dried over sodium sulfate, filtered, and concentrated to provide 360 g (100percent) of dimethyl cyclopentane-l,3-dicarboxylate as a clear oil. 1H NMR (500 Hz, CDCls) δ ppm 3.67 (s, 6H), 2.75-2.83 (m, 2H), 2.20-2.26 (m, 1H), 2.05-2.12 (m, 1H), 1.90-2.0 (m, 4H). |
88% | With sulfuric acid In water at 0 - 90℃; | Step A: Dimethyl cyclopentane-1,3-dicarboxylate. A solution of cyclopentane-1,3-dicarboxylic acid (70.0 g, 443 mmol) and anhydrous methanol (300 mL) was cooled to 0° C. in an ice water bath. Concentrated sulfuric acid (14 mL) was added dropwise, maintaining the temperature at <15° C. After the addition, the reaction was heated to 90° C. and stirred overnight. The reaction was cooled to room temperature and concentrated to dryness. The residue was treated with MTBE (500 mL) and H2O (100 mL). The aqueous layer was separated and extracted with MTBE (2*100 mL). The combined organic extracts were washed with saturated sodium bicarbonate (2*100 mL), brine (100 mL), dried over anhydrous MgSO4, filtered, and concentrated to dryness to provide the title compound (72.5 g, 88percent) as a pale yellow oil. 1H NMR (400 MHz, CDCl3) δ 3.65 (s, 6H), 2.84-2.72 (m, 2H), 2.26-2.17 (m, 1H), 2.11-2.02 (m, 1H), 1.96-1.88 (m, 4H). |
88% | at 15 - 90℃; | . A solution of cyclopentane-1,3- dicarboxylic acid (70.0 g, 443 mmol) and anhydrous methanol (300 mL) was cooled to 0 °C in an ice water bath. Concentrated sulfuric acid (14 mL) was added dropwise, maintaining the temperature at < 15 °C. After the addition, the reaction was heated to 90 °C and stirred overnight. The reaction was cooled to room temperature and concentrated to dryness. Theresidue was treated with MTBE (500 mL) and H20 (100 mL). The aqueous layer was separated and extracted with MTBE (2 x 100 mL). The combined organic extracts were washed with saturated sodium bicarbonate (2 x 100 mL), brine (100 mL), dried over anhydrous Mg504, filtered, and concentrated to dryness to provide the title compound (72.5 g, 88percent) as a pale yellow oil. ‘HNMR(400 IVIFIz, CDC13) 3.65 (s, 6H), 2.84-2.72 (m, 2H), 2.26-2.17 (m, 1H),2.11 -2.02(m, 1H), 1.96- 1.88(m,4H). |
64% | at 20℃; for 15 h; Heating / reflux | To a solution of the title compound from Step A above (11.2 g) in MeOH (250 mL) was added concentrated H2SO4 (0.5 mL) at room temperature. The mixture was heated to reflux for 15 h, cooled to room temperature, filtrated and concentrated. The remaining residue was diluted with EtOAc (100 mL), washed with saturated aqueous NaHCO3 (3 x 50 mL) and saturated aqueous NaCl (50 mL), dried (MgSO4), filtered, concentrated and purified by chromatography (silica, cyclohexane/EtOAc) to afford the title compound as a colorless solid (8.43 g, 64percent). [MH]+ = 187. |
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