Merck
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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

Total impurities: may contain up to 5,000 ppm Sodium
Potassium tert-butoxide is a strong alkoxide base, it can deprotonate carbon and other Brφnsted acids. It is a relatively poor nucleophile.

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

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

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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

More Documents

Quotes and Ordering

Anionic polymerization of carbazolyl-substituted oxiranes initiated by potassium alkalide, potassium tert-butoxide and potassium hydride.
Buika G, et al.
Macromolecular Chemistry and Physics, 196(4), 1287-1293 (1995)
Einav Amit et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 26(57), 13046-13052 (2020-04-29)
N-heterocyclic carbenes (NHCs) have emerged as a unique molecular platform for the formation of self-assembled monolayers (SAMs) on various surfaces. However, active carbene formation requires deprotonation of imidazolium salt precursors, which is mostly facilitated by exposure of the salt to
E Crespo-Corral et al.
Journal of chromatography. A, 1209(1-2), 22-28 (2008-10-01)
The usefulness of the potassium tert-butoxide/dimethyl sulphoxide/ethyl iodide reaction with carbamate and phenylurea herbicides, and its application to phenoxy acids as a way to prevent hazards and toxicity of the sodium hydride/dimethyl sulphoxide/methyl iodide reaction was studied. Using factorial design
Wei Liu et al.
Chemical communications (Cambridge, England), 49(29), 2983-2985 (2013-03-07)
Simple and cheap alcohols can promote the direct arylation of unactivated arenes with aryl iodides and bromides in the presence of potassium tert-butoxide. This transition-metal-free aromatic C-H transformation offers a cheap and easy practical way to synthesize biaryls under mild
Hajime Ito et al.
Chemical communications (Cambridge, England), 48(64), 8006-8008 (2012-07-10)
The regio- and diastereoselective silaboration of aromatic alkenes with a silylboron compound proceeds in the presence of a catalytic amount of potassium tert-butoxide, providing a complementary method to the corresponding transition metal-catalyzed reactions.

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