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659878

Sigma-Aldrich

Potassium tert-butoxide

sublimed grade, 99.99% trace metals basis

Synonym(s):
Potassium tert-butylate, Potassium t-butoxide
Linear Formula:
(CH3)3COK
CAS Number:
Molecular Weight:
112.21
Beilstein:
3556712
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

grade

sublimed grade

Quality Level

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

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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.

Packaging

5, 25 g in glass bottle

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1A - Water-react 1

Supplementary Hazards

Storage Class Code

4.3 - Hazardous materials, which set free flammable gases upon contact with water

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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