2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane
2-(3-bromopropoxy)tetrahydro-2H-pyran
CAS: 33821-94-2
Molecular Formula: C8H15BrO2
2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane - Names and Identifiers
| Name | 2-(3-bromopropoxy)tetrahydro-2H-pyran |
| Synonyms | 2-(3-broMopropoxy)oxane 2-(3-Bromopropoxy)tetrahydropyran 3-broMopropyltetrahydropyranylether 3-Bromo-O-tetrahydropyranyl-propanol 2-(3-bromopropoxy)tetrahydro-2H-pyran 1-bromo-3-tetrahydropyranyloxypropane 2-(3-BROMOPROPOXY)TETRAHYDRO-2H-PYRAN 2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane 2-(3-Bromopropoxy)tetrahydro-2H-pyran,1-Bromo-3-(tetrahydropyranyloxy)propane |
| CAS | 33821-94-2 |
| EINECS | 145-852-9 |
| InChI | InChI=1/C8H15BrO2/c9-5-3-7-11-8-4-1-2-6-10-8/h8H,1-7H2 |
| InChIKey | HJNHUFQGDJLQRS-UHFFFAOYSA-N |
2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane - Physico-chemical Properties
| Molecular Formula | C8H15BrO2 |
| Molar Mass | 223.11 |
| Density | 1.317 g/mL at 25 °C (lit.) |
| Boling Point | 64.5 °C/0.8 mmHg (lit.) |
| Flash Point | 222°F |
| Vapor Presure | 0.0378mmHg at 25°C |
| BRN | 106236 |
| Storage Condition | -20°C |
| Refractive Index | n20/D 1.478(lit.) |
| MDL | MFCD00058593 |
| Use | A potential alcohol-functional mass of this difunctional structural unit can be generated using aqueous solutions of acids. |
2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 8-10 |
| HS Code | 29329900 |
| Hazard Note | Irritant |
2-(3-Bromopropoxy)oxane, 1-Bromo-3-[(tetrahydro-2H-pyran-2-yl)oxy]propane - Reference Information
| Use | 2-(3-bromopropoxy) tetrahydro-2H-pyran is an organic intermediate that can be made of 3-bromo-1-propanol and 2, 3-dihydropyran are prepared by one-step reaction. |
| preparation | at room temperature, dichloromethane (200mL) and p-toluenesulfonic acid (1.72g,10mmol) are added to a 500mL round bottom flask, stirred and dissolved. Then 3-bromo-1-propanol (13.90g,100mmol) and 2, 3-dihydropyran (12.60g,150mmol) were added sequentially and stirred for 12h. After the reaction is over, add water to quench and separate the organic phase. The aqueous phase was extracted with dichloromethane (3 × 100mL) and the organic phase was combined. The organic phase was washed with a saturated NaCl aqueous solution, dried by anhydrous Na2SO4, and concentrated under reduced pressure to obtain a crude product. Finally, it was purified by silica gel column chromatography (petroleum ether/ethyl acetate 30:1) to obtain yellow-green oily liquid 2-(3-bromopropoxy) tetrahydro-2H-pyran (19.68g, yield 88%). |
Last Update：2024-04-09 21:04:16
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