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Merck

8.04918

Potassium tert-butylate

greener alternative

for synthesis

Synonym(s):

Potassium tert-butylate

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About This Item

Linear Formula:
(CH3)3COK
CAS Number:
865-47-4
Molecular Weight:
112.21
MDL number:
MFCD00012162
UNSPSC Code:
12352107
EC Index Number:
212-740-3
NACRES:
NA.22
Assay:
≥98.0% (acidimetric)
grade:
synthesis grade
form:
powder
solubility:
water: soluble (Hydrolysis, (rigorous decomposition))

Quality Level

200

grade

synthesis grade

vapor pressure

0.02 hPa ( 20 °C)

Assay

≥98.0% (acidimetric)

form

powder

autoignition temp.

483 °C

greener alternative product characteristics

Catalysis
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pH

13 (20 °C, 5 g/L in H2O, Hydrolysis)

mp

256-258 °C

solubility

water: soluble (Hydrolysis, (rigorous decomposition))

density

1.19 g/cm3 at 20 °C

bulk density

500 kg/m3

greener alternative category

Aligned

storage temp.

2-30°C

SMILES string

[K+].[O-]C(C)(C)C

InChI

1S/C4H9O.K/c1-4(2,3)5;/h1-3H3;/q-1;+1

InChI key

LPNYRYFBWFDTMA-UHFFFAOYSA-N

Related Categories

General description

Potassium tert-butylate (Potassium tert-Butoxide) is a strong, non-nucleophilic alkoxide base in organic chemistry. Potassium tert-butoxide catalyzes the reaction of hydro silanes and heterocyclic compounds to generate the silyl derivatives. It is used to catalyze the Michael addition reaction, Ramberg-Baecklund reaction, Pinacol rearrangement.

Application

Potassium tert-butylate is used to catalyzes the Michael addition reaction.

Features and Benefits

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is an environmentally benign and has been enhanced for catalytic efficiency. Click here for more information.

Analysis Note

Assay (acidimetric): ≥ 98,0 %(m)
Free KOH: ≤ 1 %(m)
Identity (IR): conforms

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H228 - H252 - H260 - H314

Hazard Classifications

Eye Dam. 1 - Flam. Sol. 1 - Self-heat. 2 - Skin Corr. 1A - Water-react 1

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Synthesis of N-substituted quaternary carbon centers through KO t-Bu-catalyzed aza-Michael addition of pyrazoles to cyclic enones
Yoon S, et al.
Organic & Biomolecular Chemistry, 20(42), 8313-8322 (2022)
Anton A Toutov et al.
Nature, 518(7537), 80-84 (2015-02-06)
Heteroaromatic compounds containing carbon-silicon (C-Si) bonds are of great interest in the fields of organic electronics and photonics, drug discovery, nuclear medicine and complex molecule synthesis, because these compounds have very useful physicochemical properties. Many of the methods now used

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