Alfa Aesar™ Diethylaminosulfur trifluoride, 95%
Brand: Alfa Aesar™ A11992.14
UNSPSC : 12352100
Code : NEW
Additional Details : CAS Number : 38078-09-0 Weight : 0.02500kg Transport : UN number : 2920 Chem class : 1 Pack group : I
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.
Miscible with water, ethanol, benzene and acetonitrile.
Store in cool place. Moisture sensitive. It reacts with water and ethanol. Incompatible with water, acids and bases.
|30° to 32°C (3mmHg)|