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Diethylaminosulfur trifluoride, 95%, Thermo Scientific Chemicals
Description
Diethylaminosulfur trifluoride (DAST) is used as a precursor to prepare 2,6-dimethoxybenzoyl fluoride and 2-thiazolines. It is a useful fluorinating agent used for a variety of compounds including alcohols, thioethers, alkenols and cyanohydrins. It also serves as a catalyst for Friedel-Crafts allylation reaction using tertiary cyclopropyl silyl ethers and in the rearrangement of homoallylic alcohols to unsaturated aldehydes. It plays an important role for gem difluorination of ketopipecolinic acids.
This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.
Diethylaminosulfur trifluoride (DAST) is used as a precursor to prepare 2,6-dimethoxybenzoyl fluoride and 2-thiazolines. It is a useful fluorinating agent used for a variety of compounds including alcohols, thioethers, alkenols and cyanohydrins. It also serves as a catalyst for Friedel-Crafts allylation reaction using tertiary cyclopropyl silyl ethers and in the rearrangement of homoallylic alcohols to unsaturated aldehydes. It plays an important role for gem difluorination of ketopipecolinic acids.
Solubility
Miscible with water, ethanol, benzene and acetonitrile.
Notes
Store in cool place. Moisture sensitive. It reacts with water and ethanol. Incompatible with water, acids and bases.
Specifications
| Density | 1.23 |
| Boiling Point | 30°C to 32°C (3 mmHg) |
| Flash Point | 23°C (73°F) |
| Linear Formula | (CH3CH2)2NSF3 |
| Refractive Index | 1.4115 |
| Quantity | 5 g |
| UN Number | UN2920 |
| Beilstein | 1849066 |
| Sensitivity | Moisture sensitive |
| Solubility Information | Miscible with water,ethanol,benzene and acetonitrile. |
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