1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester manufacturers
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| | 1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester Basic information |
| Product Name: | 1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester | | Synonyms: | 1,1-bis(propan-2-yl) 3-oxocyclobutane-1,1-dicarboxylate;3-Oxo-cyclobutane-1,1-dicarboxylic acid diisopropyl ester;Diisopropyl 3-oxocyclobutane-1,1-dicaboxylate;1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester;dipropan-2-yl 3-oxocyclobutane-1,1-dicarboxylate;3-Oxo-cyclobutane-1,1-dic...;Diisopropyl 3-oxocyclobutane-1,1-dicarboxylate | | CAS: | 893724-10-2 | | MF: | C12H18O5 | | MW: | 242.27 | | EINECS: | | | Product Categories: | | | Mol File: | 893724-10-2.mol |  |
| | 1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester Chemical Properties |
| Boiling point | 293.2±40.0 °C(Predicted) | | density | 1.165±0.06 g/cm3(Predicted) | | storage temp. | 2-8°C |
| | 1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester Usage And Synthesis |
| Synthesis | General procedure for the synthesis of diisopropyl 3-oxocyclobutane-1,1-dicarboxylate from diisopropyl 3,3-dimethoxycyclobutane-1,1-dicarboxylate: in a round-bottomed flask containing a solution of 3,3-dimethoxycyclobutane-1,1-dicarboxylic acid diisopropyl 3,3-dimethoxycyclobutane-1,1-dicarboxylate (1.5 g, 5.20 mmol) in dichloromethane (20 mL), trifluoroacetic acid (2 mL, 26.0 mmol). The reaction mixture was stirred at room temperature for 2.5 hours. After the reaction was completed, the reaction mixture was diluted with ethyl acetate. The organic phase was washed sequentially with water, saturated sodium bicarbonate solution and brine. The organic phase was dried with anhydrous sodium sulfate, filtered and concentrated to give diisopropyl 3-oxocyclobutane-1,1-dicarboxylate (1.2 g). The product was characterized by 1H NMR (400 MHz, CDCl3): δ 5.13 (dt, J = 12.5, 6.3 Hz, 2H), 3.64-3.53 (m, 4H), 1.32-1.24 (m, 12H). | | References | [1] Synlett, 2009, # 11, p. 1827 - 1829
[2] Synlett, 2014, vol. 25, # 3, p. 355 - 358
[3] RSC Advances, 2016, vol. 6, # 27, p. 22737 - 22748
[4] Patent: US2009/233903, 2009, A1. Location in patent: Page/Page column 52
[5] Patent: WO2015/5901, 2015, A1. Location in patent: Page/Page column 702 |
| | 1,1-Cyclobutanedicarboxylic acid, 3-oxo-, 1,1-bis(1-methylethyl) ester Preparation Products And Raw materials |
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