659878

Potassium tert-butoxide

sublimed grade, 99.99% trace metals basis

• Synonym(s): Potassium tert-butylate, Potassium t-butoxide
• Linear Formula: (CH₃)₃COK
• CAS Number: 865-47-4
• Molecular Weight: 112.21
• Beilstein: 3556712
• EC Number: 212-740-3
• MDL number: MFCD00012162
• UNSPSC Code: 12352103
• PubChem Substance ID: 24884165
• NACRES: NA.23

Properties

• grade: sublimed grade
• vapor pressure: 1 mmHg ( 220 °C)
• Assay: 99.99% trace metals basis
• form: solid
• reaction suitability: core: potassium
• mp: 256-258 °C (dec.) (lit.)
• SMILES string: [K+].CC(C)(C)[O-]
• InChI: 1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1
• InChI key: LPNYRYFBWFDTMA-UHFFFAOYSA-N

Description

General description

Potassium tert-butoxide is a strong alkoxide base, it can deprotonate carbon and other Brφnsted acids. It is a relatively poor nucleophile.

Total impurities: may contain up to 5,000 ppm Sodium

Application

Mizoroki-Heck-Type reactions are mediated by potassium tert-butoxide. potassium tert-butoxide can commence the anionic polymerization of carbazolyl-substituted oxiranes.

Safety Information

• Pictograms: GHS02,GHS05
• Signal Word: Danger
• Hazard Statements: H228,H252,H314
• Precautionary Statements: P210 - P235 - P260 - P280 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A
• Supplementary Hazards: EUH014
• Storage Class Code: 4.2 - Pyrophoric and self-heating hazardous materials
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable