63517-29-3 - Names and Identifiers
63517-29-3 - Physico-chemical Properties
Molecular Formula | C4H10BF6NS
|
Molar Mass | 228.9953192 |
Melting Point | 84-87℃ |
Storage Condition | -20°C |
63517-29-3 - Risk and Safety
Hazard Symbols | T - Toxic
|
Risk Codes | R23/24/25 - Toxic by inhalation, in contact with skin and if swallowed.
R34 - Causes burns
|
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
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.)
|
UN IDs | UN 2923 8/PG 3 |
WGK Germany | 3 |
63517-29-3 - Introduction
DAST difluorosulfinium salt;XtalFluor-E, alias XtalFluor-E(2020 declaration Trimagnesium bis(hydrogen difluoride)). The following is a description of its nature, use, preparation and safety information:
Nature:
DAST is an organic compound with the chemical formula (FSO2)SF4 and a molecular weight of 250.08g/mol. It is a white solid crystalline, can be solidified at room temperature. DAST is basic and soluble in organic solvents such as dichloromethane and diethyl ether.
Use:
DAST is an important organic fluorination reagent, which is mainly used in organic synthesis. It can be hydrogenated aromatic compounds, alcohols, ethers, ketones, esters, acid chlorides and other organic direct fluorination, providing fluorine atoms. In addition, DAST can also be used to prepare fluorinated compounds with biological activity, such as pharmaceuticals and pesticides.
Preparation Method:
The synthesis of DAST is usually carried out by the following reaction: First, thionyl chloride (SO2Cl2) is reacted with hydrogen fluoride (HF) to obtain thionyl fluoride (SO2F2). Thionyl fluoride is then reacted with carbon tetrachloride (CCl4) to form DAST.
Safety Information:
DAST should be used and stored safely. It has a pungent odor and is irritating to the skin, eyes and respiratory tract. Contact with skin and eyes must be avoided and it must be ensured that the operation is carried out in a well-ventilated place. Wear protective gloves, goggles and protective mask when using. In addition, DAST should be stored sealed and away from ignition and oxidizing agents.
It should be noted that because DAST difluorosulfinium salt;XtalFluor-E is an organic fluorinated reagent, special attention should be paid to the safety operation guidance of the laboratory when using it. Before using it, you should understand its detailed safety information and operation methods.
Last Update:2024-04-09 21:01:54