462-34-0
Boron trifluoride tetrahydrofuran complex
CAS: 462-34-0
Molecular Formula: C4H8BF3O
462-34-0 - Names and Identifiers
| Name | Boron trifluoride tetrahydrofuran complex |
| Synonyms | Trifluor(tetrahydrofuran)bor trifluoro(tetrahydrofuran)boron BORON TRIFLUORIDE TETRAHYDROFURANE Borontrifluoridetetrahydrofurancomplex Boron trifluoride tetrahydrofuran complex BORON TRIFLUORIDE TETRAHYDROFURAN COMPLEX Boron, trifluoro(tetrahydrofuran)-, (T-4)- Boron Trifluoride Tetra Hydra Furan Complex |
| CAS | 462-34-0 |
| EINECS | 207-325-9 |
| InChI | InChI=1/C4H8O.B.3FH/c1-2-4-5-3-1;;;;/h1-4H2;;3*1H/q;+3;;;/p-3 |
462-34-0 - Physico-chemical Properties
| Molecular Formula | C4H8BF3O |
| Molar Mass | 139.91 |
| Density | 1.268 g/mL at 25 °C (lit.) |
| Melting Point | 11-13 °C (lit.) |
| Boling Point | 180 °C (lit.) |
| Flash Point | 198°F |
| Water Solubility | hydrolysis |
| Solubility | Miscible with dimethyl formamide. |
| Vapor Presure | 11Pa |
| Storage Condition | Store below +30°C. |
| Sensitive | Moisture Sensitive |
| Explosive Limit | 2.3-17.7%(V) |
| Use | To be used as catalysts for organic reactions, chemical reagents and as pharmaceutical intermediates. |
462-34-0 - Risk and Safety
| Risk Codes | R34 - Causes burns R48/23 - R35 - Causes severe burns R20/22 - Harmful by inhalation and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S27 - Take off immediately all contaminated clothing. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S28A - S23 - Do not breathe vapour. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
| UN IDs | UN 3265 8/PG 2 |
| WGK Germany | 1 |
| TSCA | Yes |
| HS Code | 29321900 |
| Hazard Note | Toxic/Corrosive |
| Hazard Class | 8 |
| Packing Group | II |
462-34-0 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| overview | boron trifluoride tetrahydrofuran can be used in organic synthesis. At present, the production technology in Japan and the United States uses boron trifluoride and tetrahydrofuran liquid to react, and use magnesium drum drying to obtain flaky boron trifluoride tetrahydrofuran. This reaction is an exothermic reaction, the reaction temperature is difficult to control, and the product Drying cost is high. Therefore, there is a need to provide a new production process to solve the above problems. |
| preparation | CN202010573013.3 provides a preparation method of boron trifluoride tetrahydrofuran complex, the preparation method can make tetrahydrofuran and boron trifluoride The instantaneous complexation can prevent tetrahydrofuran from being oxidized and discolored under vacuum conditions, adopt an independent desulfurization process, cancel the distillation desulfurization process, and reduce the water content and sulfur dioxide content in the product. The first vacuum pump 2, the second vacuum pump 12 and the third vacuum pump 17 are respectively used to vacuum the tetrahydrofuran vaporization tank 6, the reaction tank 13 and the desulfurization tank 21 to -0.1MPa for 1h; Under the condition of stirring (80 r/min minutes), 50kg of tetrahydrofuran is added into the tetrahydrofuran vaporization tank 6 to heat the tetrahydrofuran in the tetrahydrofuran vaporization tank 6 through a first steam heating device, the temperature of the tetrahydrofuran is maintained at 80 ℃ and reaches a gas-liquid equilibrium state (0.15MPa); Cold water is introduced through cold water inlet 9, tetrahydrofuran vapor is introduced into the reaction tank 13 at a speed of 25kg/h and boron trifluoride vapor is introduced at a speed of 23.61kg/h, and the complexation reaction is started. After the reaction, the temperature of the reaction liquid is 80 ℃, under the condition of stirring (80 r/min minutes), cool to 50 ℃ to obtain the crude product of boron trifluoride tetrahydrofuran complex; the crude product of boron trifluoride tetrahydrofuran complex is transported to the desulfurization tank, and under the condition of stirring (80 r/min minutes), maintain the vacuum (-0.1MPa) condition, heat to 50 ℃ by the second steam heating device, keep for 3 hours, after desulfurization, cool to 25 ℃ and discharge, the boron trifluoride tetrahydrofuran is obtained. |
| Use | To be used as a catalyst for organic reactions, chemical reagents and as a pharmaceutical intermediate. Used as a catalyst for organic reactions, an inhibitor for polymerization reactions, and as a pharmaceutical intermediate. |
Last Update：2024-04-09 20:52:54
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