Lithium tri-tert-butoxyaluminohydride
Lithium tri-tert-butoxyaluminohydride
CAS: 17476-04-9
Molecular Formula C12H28AlLiO3
Molar Mass 254.27
Density 0.942g/mLat 25°C
Melting Point 300-319 °C (dec.) (lit.)
Boling Point 66°C (THF)
Flash Point 95°F
Water Solubility Reacts with water.
Solubility It is soluble in organic solvents at low temperatures.
Vapor Presure 46mmHg at 25°C
Appearance Solution
Color Clear to slightly turbid colorless
Exposure Limit ACGIH: TWA 50 ppm; STEL 100 ppm (Skin)OSHA: TWA 200 ppm(590 mg/m3)NIOSH: IDLH 2000 ppm; TWA 200 ppm(590 mg/m3); STEL 250 ppm(735 mg/m3)
BRN 5796791
Lithium tri-tert-butoxyaluminohydride
CAS: 17476-04-9
LiAlH(t-BuO)3 is a strong reducing agent, which is often used in organic synthetic chemistry. It is a crystalline solid with the following properties:
1. Properties: Hydrogenated lithium tert-butyl aluminate is colorless crystal or white to yellow powder, which can be dissolved in organic solvents such as ether and tetrahydrofuran.
2. Uses: Hydrogenated lithium tert-butyl aluminate is often used in organic synthesis reactions, especially for reducing aldehydes, ketones, carboxylic acids, acyl chlorides and amides. It can reduce these functional groups to the corresponding alcohols, olefins and amines.
3. Preparation method: Lithium aluminum trihydroxide is usually prepared by the reaction of aluminum trihydroxide and lithium hydroxide in ether or tetrahydrofuran. The reaction conditions are generally carried out at room temperature.
4. Safety information: Hydrogenated lithium tert-butyl aluminate is a strong reducing agent, which reacts violently with water, acid and oxygen in the air, which may lead to fire or explosion. Wear appropriate personal protective equipment when using, and avoid contact with air and moisture. In addition, it should also be kept away from oxidants, acids and combustible substances.
