(Bromoethynyl)triisopropylsilane
(Bromoethynyl)triisopropylsilane
CAS: 111409-79-1
Molecular Formula: C11H21BrSi
(Bromoethynyl)triisopropylsilane - Names and Identifiers
(Bromoethynyl)triisopropylsilane - Physico-chemical Properties
| Molecular Formula | C11H21BrSi |
| Molar Mass | 261.27 |
| Density | 1.073±0.06 g/cm3(Predicted) |
| Boling Point | 240.5±9.0 °C(Predicted) |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.49 |
| Use | (2-bromoethynyl) triisopropylsilane is an organic intermediate, which can be obtained by bromination of triisopropylsilyl acetylene through NBS. There are reports that it can be used to prepare 2-alkynylindole compounds. |
(Bromoethynyl)triisopropylsilane - Preparation
N-bromosuccinimide (3.2 gm, 18 mmol) and silver nitrate (252 mg, 1.5 mmol) were added to a stirred solution of alkynes (15 mmol) in acetone (50 mL). The reaction mixture was stirred at room temperature for 3 hours. The reaction was quenched with cold water (50 mL) and extracted with n-pentane (100 mL x 3). The combined organic fraction was dried with anhydrous Na2SO4 and concentrated under reduced pressure. The crude product was purified by silica gel column chromatography (hexane solution 0.5% ethyl acetate) to obtain (2-bromoethynyl) triisopropylsilane.
Last Update：2024-04-10 22:29:15
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