324620

Lithium bis(trimethylsilyl)amide

97%

• Synonym(s): Hexamethyldisilazane lithium salt
• Linear Formula: [(CH₃)₃Si]₂NLi
• CAS Number: 4039-32-1
• Molecular Weight: 167.33
• Número EC: 223-725-6
• Número MDL: MFCD00008261
• ID de substância PubChem: 24859455
• NACRES: NA.22

Properties

• Nível de qualidade: 200
• teor: 97%
• forma: solid
• densidade: 0.860 g/mL at 25 °C (lit.)
• SMILES string: [Li]N([Si](C)(C)C)[Si](C)(C)C
• InChI: 1S/C6H18NSi2.Li/c1-8(2,3)7-9(4,5)6;/h1-6H3;/q-1;+1
• InChI key: YNESATAKKCNGOF-UHFFFAOYSA-N

Description

Descrição geral

Lithium bis(trimethylsilyl)amide is a non-nucleophilic strong Brønsted base, which is generally soluble in most of the nonpolar organic solvents. It is most commonly employed in organic reactions.

Aplicação

Base employed in generating enolates for the preparation of lactone precursors, pyranones, and cyclohexanes.
Used to catalyze the addition of phosphine P-H bonds to carbodiimides leading to phosphaguanidines. Also used in a novel three-step synthesis of disubstituted 1,2,5-thiadiazoles.

Embalagem

10, 50, 250 g in glass bottle

Safety Information

• Pictogramas: GHS02,GHS05
• Palavra indicadora: Danger
• Frases de perigo: H228 - H251 - H314
• Declarações de precaução: P210 - P235 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 1 - Skin Corr. 1B
• Perigos de suplementos: EUH014
• Código de classe de armazenamento: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 2
• Ponto de fulgor (ºF): 62.6 °F - closed cup
• Ponto de fulgor (ºC): 17 °C - closed cup
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges