| Company Name: |
Energy Chemical |
| Tel: |
400-0056266 |
| Email: |
sales8178@energy-chemical.com |
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| | 2-OXO-2,3-DIHYDRO-1H-INDOLE-6-CARBOXYLIC ACID Basic information |
| | 2-OXO-2,3-DIHYDRO-1H-INDOLE-6-CARBOXYLIC ACID Chemical Properties |
| Boiling point | 438.1±45.0 °C(Predicted) | | density | 1.433±0.06 g/cm3(Predicted) | | storage temp. | Sealed in dry,Room Temperature | | pka | 3.94±0.20(Predicted) | | Appearance | White to off-white Solid |
| Hazard Codes | Xi | | Risk Statements | 36 | | Safety Statements | 26 | | HS Code | 2933998090 |
| | 2-OXO-2,3-DIHYDRO-1H-INDOLE-6-CARBOXYLIC ACID Usage And Synthesis |
| Synthesis | General procedure for the synthesis of 2-oxoindoline-6-carboxylic acid from methyl 2-oxoindoline-6-carboxylate: Sodium hydroxide solution (1N, 20 mL) was added to a solution of 2-oxoindoline-6-carboxylic acid methyl ester (2 g, 10.46 mmol, 1.00 equiv) in methanol (20 mL). The reaction mixture was stirred at 80 °C for 2 hours. After completion of the reaction, the mixture was cooled to 30 °C, diluted with 50 mL of water and extracted with dichloromethane (2 x 30 mL). The aqueous phases were combined and the pH was adjusted with aqueous hydrochloric acid (6N) to 2. The precipitated solid was collected by filtration and dried to give the title compound 1.28 g (69% yield) as a brown solid.1H NMR (400 MHz, CDCl3) δ: 12.86 (s, 1H), 10.50 (s, 1H), 7.55 (m, 1H), 7.32-7.30 (m. 2H), 3.56 (s, 2H). | | References | [1] Patent: US2015/284327, 2015, A1. Location in patent: Paragraph 0215; 0216
[2] Patent: WO2006/64044, 2006, A1. Location in patent: Page/Page column 21-22 |
| | 2-OXO-2,3-DIHYDRO-1H-INDOLE-6-CARBOXYLIC ACID Preparation Products And Raw materials |
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