400173

Lithium tert-butoxide

97%

• Sinônimo(s): LiOtBu
• Fórmula linear: (CH₃)₃COLi
• Número CAS: 1907-33-1
• Peso molecular: 80.05
• Beilstein: 3620018
• Número CE: 217-611-5
• Número MDL: MFCD00050479
• Código UNSPSC: 12352300
• ID de substância PubChem: 24864902
• NACRES: NA.22

Propriedades

• Ensaio: 97%
• Formulário: powder and chunks
• p.e.: 110 °C/at 0.1333 hPa
• densidade: 0,897 g/cm³
• cadeia de caracteres SMILES: [Li+].CC(C)(C)[O-]
• InChI: 1S/C4H9O.Li/c1-4(2,3)5;/h1-3H3;/q-1;+1
• chave InChI: LZWQNOHZMQIFBX-UHFFFAOYSA-N

Descrição

Aplicação

Lithium tert-butoxide (LiOtBu) is a weakly basic and nucleophilic alkali metal oxide commonly used as an initiator for anionic polymerization.
Other synthetic applications:

• In combination with potassium diisopropylamide, LiOtBu can be used to deprotonate 1-(phenylseleno) alkenes and bis (phenylseleno) acetals.
• LiOtBu can mediate the α-alkylation reaction of ketones with primary alcohols in the absence of any transition metal catalyst.
• LiOtBu is an effective base for the synthesis of 3,4,5-trisubstituted 3H-oxazol-2-ones and 3,4-disubstituted (Z)-oxazolidin-2-ones from substituted propargyl alcohols and aryl/alkyl isocyanates using DMF as a solvent.

Informações de segurança

• Pictogramas: GHS02,GHS05,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H251,H302,H314
• Declarações de precaução: P235 - P260 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Classificações de perigo: Acute Tox. 4 Oral - Self-heat. 1 - Skin Corr. 1B
• Perigos de suplementos: EUH014
• Código de classe de armazenamento: 4.2 - Pyrophoric and self-heating hazardous materials
• Classe de risco de água (WGK): WGK 3
• Equipamento de proteção individual: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges